<PAGE>

                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   FORM 10-K

(Mark One)

[XX] ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
     ACT OF 1934 [FEE REQUIRED]

For the fiscal year ended  December 31, 1996
                         -------------------------------------------------------

                                       OR

[  ] TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES
     EXCHANGE ACT OF 1934 [NO FEE REQUIRED]

For the transition period from                 to
                              ----------------    ------------------------------

Commission file number    33-35148-02
                       ---------------------------------------------------------


        American Income Fund I-B , a Massachusetts Limited Partnership
--------------------------------------------------------------------------------
             (Exact name of registrant as specified in its charter)

 Massachusetts                                            04-3106525
----------------------------------------------------      ----------------------
(State or other jurisdiction of                            (IRS Employer
 incorporation or organization)                            Identification No.)

 98 N. Washington St., Fifth Floor, Boston, MA            02114
----------------------------------------------------      ----------------------
(Address of principal executive offices)                  (Zip Code)

Registrant's telephone number, including area code  (617) 854-5800
                                                   -----------------------------

Securities registered pursuant to Section 12(b) of the Act  NONE
                                                           ---------------------

          Title of each class          Name of each exchange on which registered

-----------------------------------   ------------------------------------------

-----------------------------------   ------------------------------------------

Securities registered pursuant to Section 12(g) of the Act:

           286,711  Units Representing Limited Partnership Interest
--------------------------------------------------------------------------------
                                (Title of class)

--------------------------------------------------------------------------------
                                (Title of class)

     Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required  to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.   Yes    XX    No
                                                 ------      ------

     State the aggregate market value of the voting stock held by nonaffiliates
of the registrant.  Not applicable.  Securities are nonvoting for this purpose.
Refer to Item 12 for further information.

                      DOCUMENTS INCORPORATED BY REFERENCE
       Portions of the Registrant's Annual Report to security holders for
                the year ended December 31, 1996 (Part I and II)
<PAGE>

                           AMERICAN INCOME FUND I-B,
                      a Massachusetts Limited Partnership

                                   FORM 10-K

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                          Page
                                                                          ----

                                     PART I

<S>        <C>                                                               <C>
Item 1.    Business                                                          3

Item 2.    Properties                                                        5

Item 3.    Legal Proceedings                                                 5

Item 4.    Submission of Matters to a Vote of Security Holders               5

                                    PART II

Item 5.    Market for the Partnership's Securities and                       6
           Related Security Holder Matters

Item 6.    Selected Financial Data                                           7

Item 7.    Management's Discussion and Analysis of Financial
           Condition and Results of Operations                               7

Item 8.    Financial Statements and Supplementary Data                       7

Item 9.    Changes in and Disagreements with Accountants on
           Accounting and Financial Disclosure                               7

                                    PART III

Item 10.   Directors and Executive Officers of the Partnership               8

Item 11.   Executive Compensation                                           10

Item 12.   Security Ownership of Certain Beneficial Owners and Management   10

Item 13.   Certain Relationships and Related Transactions                   11

                                    PART IV

Item 14.   Exhibits, Financial Statement Schedules and Reports on Form 8-K  13-15
</TABLE>

                                      -2-
<PAGE>

PART I

Item 1.  Business.
------------------

    (a)  General Development of Business

    AMERICAN INCOME FUND I-B, a Massachusetts Limited Partnership, (the
"Partnership") was organized as a limited partnership under the Massachusetts
Uniform Limited Partnership Act (the "Uniform Act") on December 31, 1990 for the
purpose of acquiring and leasing to third parties a diversified portfolio of
capital equipment.  Partners' capital initially consisted of contributions of
$1,000 from the General Partner (AFG Leasing VI Incorporated) and $100 from the
Initial Limited Partner (AFG Assignor Corporation).  On March 1, 1991, the
Partnership issued 286,711 units of limited partnership interest (the "Units")
to 453 investors.  The Partnership has one General Partner,  AFG Leasing VI
Incorporated, a Massachusetts corporation formed in 1990 and an affiliate of
Equis Financial Group Limited Partnership (formerly American Finance Group), a
Massachusetts limited partnership ("EFG" or the "Manager").  The General Partner
is not required to make any other capital contributions except as may be
required under the Uniform Act and Section 6.1(b) of the Amended and Restated
Agreement and Certificate of Limited Partnership (the "Restated Agreement, as
amended").

    (b)  Financial Information About Industry Segments

    The Partnership is engaged in only one industry segment:  the business of
acquiring capital equipment and leasing the equipment to creditworthy lessees on
a full payout or operating lease basis.  Full payout leases are those in which
aggregate noncancellable rents equal or exceed the Purchase Price of the leased
equipment.  Operating leases are those in which the aggregate noncancellable
rental payments are less than the Purchase Price of the leased equipment.
Industry segment data is not applicable.

    (c)  Narrative Description of Business

    The Partnership was organized to acquire a diversified portfolio of capital
equipment subject to various full payout and operating leases and to lease the
equipment to third parties as income-producing investments.  More specifically,
the Partnership's primary investment objectives are to acquire and lease
equipment which will:

    1. Generate quarterly cash distributions;

    2. Preserve and protect Partnership capital; and

    3. Maintain substantial residual value for ultimate sale.

    The Partnership has the additional objective of providing certain federal
income tax benefits.

    The Closing Date of the offering of Units of the Partnership was March 1,
1991. Significant operations commenced coincident with the Partnership's initial
purchase of equipment and the associated lease commitments on March 1, 1991. The
acquisition of the equipment and its associated leases is described in detail in
Note 3 to the financial statements included in Item 14, herein. The Partnership
will terminate no later than December 31, 2002; however, the General Partner is
evaluating winding-up the business of the Partnership in 1997 or 1998.

    The Partnership has no employees; however, it entered into a Management
Agreement with the Manager. The Manager's role, among other things, is to (i)
evaluate, select, negotiate, and consummate the acquisition of equipment, (ii)
manage the leasing, re-leasing, financing, and refinancing of equipment, and
(iii) arrange the resale of equipment.  The Manager is compensated for such
services as described in the Restated Agreement, as amended, Item 13 herein, and
in Note 4 to the financial statements included in Item 14, herein.

    The Partnership's investment in equipment is, and will continue to be,
subject to various risks, including physical deterioration, technological
obsolescence and defaults by lessees.  A principal business risk of owning

                                      -3-
<PAGE>

and leasing equipment is the possibility that aggregate lease revenue and
equipment sale proceeds will be insufficient to provide an acceptable rate of
return on invested capital after payment of all debt service costs and operating
expenses. Consequently, the success of the Partnership is largely dependent upon
the ability of the General Partner and its Affiliates to forecast technological
advances, the ability of the lessees to fulfill their lease obligations and the
quality and marketability of the equipment at the time of sale.

    In addition, the leasing industry is very competitive.  Although all funds
available for acquisitions have been invested in equipment, subject to
noncancellable lease agreements, the Partnership will encounter considerable
competition when equipment is re-leased or sold at the expiration of primary
lease terms.  The Partnership will compete with lease programs offered directly
by manufacturers and other equipment leasing companies, including limited
partnerships and trusts organized and managed similarly to the Partnership, and
including other EFG-sponsored partnerships and trusts, which may seek to re-
lease or sell equipment within their own portfolios to the same customers as the
Partnership.  Many competitors have greater financial resources and more
experience than the Partnership, the General Partner and the Manager.

    Generally, the Partnership is prohibited from reinvesting the proceeds
generated by refinancing or selling equipment.  Accordingly, it is anticipated
that the Partnership will begin to liquidate its portfolio of equipment at the
expiration of the initial lease terms and to distribute the net liquidation
proceeds.  As an alternative to sale, the Partnership may enter re-lease
agreements when considered advantageous by the General Partner and the Manager.
In accordance with the Partnership's stated investment objective and policies,
the General Partner is evaluating winding-up the Partnership's operations,
including the liquidation of its entire portfolio.

    Revenue from major individual lessees which accounted for 10% or more of
lease revenue during the years ended December 31, 1996, 1995 and 1994 is
incorporated herein by reference to Note 2 to the financial statements in the
1996 Annual Report.  Refer to Item 14(a)(3) for lease agreements filed with the
Securities and Exchange Commission.

    Default by a lessee under a lease may cause equipment to be returned to the
Partnership at a time when the General Partner or the Manager is unable to
arrange for the re-lease or sale of such equipment.  This could result in the
loss of a material portion of anticipated revenue and significantly weaken the
Partnership's ability to repay related debt.

    EFG is a Massachusetts limited partnership formerly known as American
Finance Group ("AFG").  AFG was established in 1988 as a Massachusetts general
partnership and succeeded American Finance Group, Inc., a Massachusetts
corporation organized in 1980.  EFG and its subsidiaries (collectively, the
"Company") are engaged in various aspects of the equipment leasing business,
including EFG's role as Equipment Manager or Advisor to the Partnership and
several other Direct-Participation equipment leasing programs sponsored or co-
sponsored by EFG (the "Other Investment Programs").  The Company arranges to
broker or originate equipment leases, acts as remarketing agent and asset
manager, and provides leasing support services, such as billing, collecting, and
asset tracking.

    The general partner of EFG, with a 1% controlling interest, is Equis
Corporation, a Massachusetts corporation owned and controlled entirely by Gary
D. Engle, its President and Chief Executive Officer.  Equis Corporation also
owns a controlling 1% general partner interest in EFG's 99% limited partner, GDE
Acquisition Limited Partnership ("GDE LP").  Equis Corporation and GDE LP were
established in December 1994 by Mr. Engle for the sole purpose of acquiring the
business of AFG.

    In January 1996, the Company sold certain assets of AFG relating primarily
to the business of originating new leases, and the name "American Finance
Group," and its acronym, to a third party (the "Buyer").  AFG changed its name
to Equis Financial Group Limited Partnership after the sale was concluded.
Pursuant to terms of the sale agreements, EFG agreed not to compete with the
Buyer's lease origination business for a period of five years; however, EFG is
permitted to originate certain equipment leases, principally those involving
non-investment grade lessees and ocean-going vessels, which are not in
competition with the Buyer.  In addition, the sale agreements specifically
reserved to EFG the rights to continue using the name American Finance Group and
its acronym in connection with the Partnership and the Other Investment Programs
and to continue managing all

                                      -4-
<PAGE>

assets owned by the Partnership and the Other Investment Programs, including the
right to satisfy all required equipment acquisitions utilizing either brokers or
the Buyer. Geoffrey A. MacDonald, Chairman of Equis Corporation and Gary D.
Engle agreed not to compete with the sold business on terms and conditions
similar to those for the Company.

    (d) Financial Information About Foreign and Domestic Operations and Export
    Sales

    Not applicable.

Item 2.  Properties.
--------------------

    Incorporated herein by reference to Note 3 to the financial statements in
the 1996 Annual Report.

Item 3.  Legal Proceedings.
---------------------------

    Incorporated herein by reference to Note 7 to the financial statements in
the 1996 Annual Report.

Item 4.  Submission of Matters to a Vote of Security Holders.
-------------------------------------------------------------

    None.

                                      -5-
<PAGE>

PART II

Item 5.  Market for the Partnership's Securities and Related Security Holder
----------------------------------------------------------------------------
Matters.
--------

    (a) Market Information

    There is no public market for the resale of the Units and it is not
anticipated that a public market for resale of the Units will develop.

    (b) Approximate Number of Security Holders

    At December 31, 1996, there were 435 Limited Partners in the Partnership.

    (c) Dividend History and Restrictions

    Pursuant to Article VI of the Restated Agreement, as amended, the
Partnership's Distributable Cash From Operations and Distributable Cash From
Sales or Refinancings are determined and distributed to the Partners quarterly.
Each quarter's distribution may vary in amount.  Distributions may be made to
the General Partner prior to the end of the fiscal quarter; however, the amount
of such distribution reflects only amounts to which the General Partner is
entitled at the time such distribution is made.  Currently, there are no
restrictions that materially limit the Partnership's ability to distribute
Distributable Cash From Operations and Distributable Cash From Sales or
Refinancings or that the Partnership believes are likely to materially limit the
future distribution of Distributable Cash From Operations and Distributable Cash
From Sales or Refinancings.  The Partnership expects to continue to distribute
all Distributable Cash From Operations and Distributable Cash From Sales or
Refinancings on a quarterly basis.

    Distributions in 1996 and 1995 were as follows:

<TABLE>
<CAPTION>

                                            General     Limited
                                  Total     Partner    Partners
                               -----------  --------  -----------

<S>                            <C>          <C>       <C>
   Total 1996 distributions     $  414,979   $20,749   $  394,230
   Total 1995 distributions        679,052    33,953      645,099
                                ----------   -------   ----------
   Total                        $1,094,031   $54,702   $1,039,329
                                ==========   =======   ==========

</TABLE>

    Distributions payable were $75,451 and $113,176 at December 31, 1996 and
1995, respectively.

    "Distributable Cash From Operations" means the net cash provided by the
Partnership's normal operations after general expenses and current liabilities
of the Partnership are paid, reduced by any reserves for working capital and
contingent liabilities to be funded from such cash, to the extent deemed
reasonable by the General Partner, and increased by any portion of such reserves
deemed by the General Partner not to be required for Partnership operations and
reduced by all accrued and unpaid Equipment Management Fees and, after Payout,
further reduced by all accrued and unpaid Subordinated Remarketing Fees.
Distributable Cash From Operations does not include any Distributable Cash From
Sales or Refinancings.

    "Distributable Cash From Sales or Refinancings" means Cash From Sales or
Refinancings as reduced by (i)(a) amounts realized from any loss or destruction
of equipment which the General Partner determines shall be reinvested in similar
equipment for the remainder of the original lease term of the lost or destroyed
equipment, or in isolated instances, in other equipment, if the General Partner
determines that investment of such proceeds will significantly improve the
diversity of the Partnership's equipment portfolio, and subject in either case
to satisfaction of all existing indebtedness secured by such equipment to the
extent deemed necessary or appropriate by the General Partner, or (b) the
proceeds from the sale of an interest in equipment pursuant to any agreement

                                      -6-
<PAGE>

governing a joint venture which the General Partner determines will be invested
in additional equipment or interests in equipment and which ultimately are so
reinvested and (ii) any accrued and unpaid Equipment Management Fees and, after
Payout, any accrued and unpaid Subordinated Remarketing Fees.

    "Cash From Sales or Refinancings" means cash received by the Partnership
from sale or refinancing transactions, as reduced by (i)(a) all debts and
liabilities of the Partnership required to be paid as a result of sale or
refinancing transactions, whether or not then due and payable (including any
liabilities on an item of equipment sold which are not assumed by the buyer and
any remarketing fees required to be paid to persons not affiliated with the
General Partner, but not including any Subordinated Remarketing Fees whether or
not then due and payable) and (b) general expenses and current liabilities of
the Partnership (other than any portion of the Equipment Management Fee which is
required to be accrued and the Subordinated Remarketing Fee) and (c) any
reserves for working capital and contingent liabilities funded from such cash to
the extent deemed reasonable by the General Partner and (ii) increased by any
portion of such reserves deemed by the General Partner not to be required for
Partnership operations.  In the event the Partnership accepts a note in
connection with any sale or refinancing transaction, all payments subsequently
received in cash by the Partnership with respect to such note shall be included
in Cash From Sales or Refinancings, regardless of the treatment of such payments
by the Partnership for tax or accounting purposes.  If the Partnership receives
purchase money obligations in payment for equipment sold, which are secured by
liens on such equipment, the amount of such obligations shall not be included in
Cash From Sales or Refinancings until the obligations are fully satisfied.

    Each distribution of Distributable Cash From Operations and Distributable
Cash From Sales or Refinancings of the Partnership shall be made 95% to the
Limited Partners and 5% to the General Partner.

    "Payout" is defined as the first time when the aggregate amount of all
distributions to the Limited Partners of Distributable Cash From Operations and
Distributable Cash From Sales or Refinancings equals the aggregate amount of the
Limited Partners' original capital contributions plus a cumulative annual
distribution of 11% (compounded quarterly and calculated beginning with the last
day of the month of the Partnership's Closing Date) on their aggregate
unreturned capital contributions.  For purposes of this definition, capital
contributions shall be deemed to have been returned only to the extent that
distributions of cash to the Limited Partners exceed the amount required to
satisfy the cumulative annual distribution of 11% (compounded quarterly) on the
Limited Partners' aggregate unreturned capital contributions, such calculation
to be based on the aggregate unreturned capital contributions outstanding on the
first day of each fiscal quarter.

    Distributable Cash From Operations and Distributable Cash From Sales or
Refinancings ("Distributions") are distributed within 30 days after the
completion of each quarter, beginning with the first full fiscal quarter
following the Partnership's Closing.  Each Distribution is described in a
statement sent to the Limited Partners.

Item 6.  Selected Financial Data.
---------------------------------

    Incorporated herein by reference to the section entitled "Selected Financial
Data" in the 1996 Annual Report.

Item 7.  Management's Discussion and Analysis of Financial Condition and Results
--------------------------------------------------------------------------------
of Operations.
--------------

    Incorporated herein by reference to the section entitled "Management's
Discussion and Analysis of Financial Condition and Results of Operations" in the
1996 Annual Report.

Item 8.  Financial Statements and Supplementary Data.
-----------------------------------------------------

    Incorporated herein by reference to the financial statements and
supplementary data included in the 1996 Annual Report.

Item 9.  Changes in and Disagreements with Accountants on Accounting and
------------------------------------------------------------------------
Financial Disclosure.
---------------------

None.

                                      -7-
<PAGE>

PART III

Item 10.  Directors and Executive Officers of the Partnership.
--------------------------------------------------------------

    (a-b) Identification of Directors and Executive Officers

    The Partnership has no Directors or Officers.  As indicated in Item 1 of
this report, AFG Leasing VI Incorporated is the sole General Partner of the
Partnership.  Under the Restated Agreement, as amended, the General Partner is
solely responsible for the operation of the Partnership's properties and the
Limited Partners have no right to participate in the control of such operations.
The names, titles and ages of the Directors and Executive Officers of the
General Partner as of March 15, 1997 are as follows:

DIRECTORS AND EXECUTIVE OFFICERS OF
THE GENERAL PARTNER (See Item 13)
---------------------------------

<TABLE>
<CAPTION>

           Name                             Title                    Age         Term
---------------------------  ------------------------------------  -------  --------------
<S>                          <C>                                   <C>      <C>

Geoffrey A. MacDonald        Chairman and a member of the                       Until a
                             Executive Committee of EFG                        successor
                             and President and a Director                       is duly
                             of the General Partner                   48        elected
                                                                                  and
                                                                               qualified
Gary D. Engle                President and Chief Executive
                             Officer and member of the
                             Executive Committee of EFG               48

Gary M. Romano               Executive Vice President and Chief
                             Operating Officer of EFG and
                             Clerk of the General Partner             37

James A. Coyne               Senior Vice President of EFG             36

Michael J. Butterfield       Vice President, Finance and
                             Treasurer of EFG and Treasurer
                             of the General Partner                   37

James F. Livesey             Vice President, Aircraft and Vessels     47
                             of EFG

Sandra L. Simonsen           Senior Vice President, Information       46
                             Systems of EFG

Gail D. Ofgant               Vice President, Lease Operations of      31
                             EFG
</TABLE>

    (c) Identification of Certain Significant Persons

    None.

    (d) Family Relationship

    No family relationship exists among any of the foregoing Partners, Directors
or Executive Officers.

                                      -8-
<PAGE>

    (e) Business Experience

    Mr. MacDonald, age 48, is a co-founder, Chairman and a member of the
Executive Committee of EFG and President and a Director of the General Partner.
Mr. MacDonald was also a co-founder, Director and Senior Vice President of EFG's
predecessor corporation from 1980 to 1988.  Mr. MacDonald is Vice President of
American Finance Group Securities Corp. and a limited partner in Atlantic
Acquisition Limited Partnership ("AALP").  Prior to co-founding EFG's
predecessors, Mr. MacDonald held various executive and management positions in
the leasing and pharmaceutical industries.  Mr. MacDonald holds an M.B.A. from
Boston College and a B.A. degree from the University of Massachusetts (Amherst).

    Mr. Engle, age 48, is President and Chief Executive Officer and a member of
the Executive Committee of EFG and President of AFG Realty Corporation.  Mr.
Engle is Vice President and a Director of certain of EFG's affiliates.  On
December 16, 1994, Mr. Engle acquired control of EFG, the General Partner and
each of EFG's subsidiaries.  Mr. Engle controls the general partner of AALP and
is also a limited partner in AALP. From 1987 to 1990, Mr. Engle was a principal
and co-founder of Cobb Partners Development, Inc., a real estate and mortgage
banking company.  From 1980 to 1987, Mr. Engle was Senior Vice President and
Chief Financial Officer of Arvida Disney Company, a large scale community
development company owned by Walt Disney Company.  Prior to 1980, Mr. Engle
served in various management consulting and institutional brokerage capacities.
Mr. Engle has an M.B.A. from Harvard University and a B.S. degree from the
University of Massachusetts (Amherst).

    Mr. Romano, age 37, is Executive Vice President and Chief Operating Officer
of EFG and certain of its affiliates and Clerk of the General Partner.  Mr.
Romano joined EFG in November 1989 and was appointed Executive Vice President
and Chief Operating Officer in April 1996.  Prior to joining EFG, Mr. Romano was
Assistant Controller for a privately-held real estate company which he joined in
1987.  Mr. Romano held audit staff and manager positions at Ernst & Whinney (now
Ernst & Young LLP) from 1982 to 1986.  Mr. Romano is a C.P.A. and holds a B.S.
degree from Boston College.

    Mr. Coyne, age 36, is Senior Vice President of EFG.  Mr. Coyne joined
EFG in 1989, remained until May 1993, and rejoined EFG in November 1994.  From
May 1993 through November 1994, he was with the Raymond Company, a private
investment firm, where he was responsible for financing corporate and real
estate acquisitions.  From 1985 through 1989, Mr. Coyne was affiliated with a
real estate investment company and an equipment leasing company.  Prior to 1985
he was with the accounting firm of Ernst & Whinney (now Ernst & Young LLP).  He
has a BS in Business Administration from John Carroll University, a Masters
Degree in Accounting from Case Western Reserve University and  is a Certified
Public Accountant.

    Mr. Butterfield, age 37, joined EFG in June 1992 and became Vice President,
Finance and Treasurer of EFG and certain of its affiliates in April 1996 and is
Treasurer of the General Partner.  Prior to joining EFG, Mr. Butterfield was an
Audit Manager with Ernst & Young LLP, which he joined in 1987.  Mr. Butterfield
was employed in public accounting and industry positions in New Zealand and
London (U.K.) prior to coming to the United States in 1987. Mr. Butterfield
attained his Associate Chartered Accountant (A.C.A.) professional qualification
in New Zealand and has completed his C.P.A. requirements in the United States.
He holds a Bachelor of Commerce degree from the University of Otago, Dunedin,
New Zealand.

    Mr. Livesey, age 47, is Vice President, Aircraft and Vessels, of EFG.  Mr.
Livesey joined EFG in October, 1989, and was promoted to Vice President in
January 1992.  Prior to joining EFG, Mr. Livesey held sales and marketing
positions with two privately-held equipment leasing firms.  Mr. Livesey holds an
M.B.A. from Boston College and B.A. degree from Stonehill College.

    Ms. Simonsen, age 46, joined EFG in February 1990 and was promoted to Senior
Vice President, Information Systems of EFG in April 1996.  Prior to joining EFG,
Ms. Simonsen was Vice President, Information Systems with Investors Mortgage
Insurance Company which she joined in 1973.  Ms. Simonsen provided systems
consulting for a subsidiary of American International Group and authored a
software program published by IBM.  Ms. Simonsen holds a B.A. degree from Wilson
College.

                                      -9-
<PAGE>

    Ms. Ofgant, age 31, is Vice President, Lease Operations of EFG and certain
of its affiliates.  Ms. Ofgant joined EFG in June 1989, and was promoted to
Manager, Lease Operations in April 1994.  In April 1996, Ms. Ofgant was
appointed Vice President, Lease Operations.  Prior to joining EFG, Ms. Ofgant
was employed by Security Pacific National Trust Company.  Ms. Ofgant holds a
B.S. degree in Finance from Providence College.

    (f) Involvement in Certain Legal Proceedings

    None.

    (g) Promoters and Control Persons

    See Item 10 (a-b) above.

Item 11.  Executive Compensation.
---------------------------------

    (a) Cash Compensation

    Currently, the Partnership has no employees.  However, under the terms of
the Restated Agreement, as amended, the Partnership is obligated to pay all
costs of personnel employed full or part-time by the Partnership, including
officers or employees of the General Partner or its Affiliates.  There is no
plan at the present time to make any officers or employees of the General
Partner or its Affiliates employees of the Partnership.  The Partnership has not
paid and does not propose to pay any options, warrants or rights to the officers
or employees of the General Partner or its Affiliates.

    (b) Compensation Pursuant to Plans

    None.

    (c) Other Compensation

    Although the Partnership has no employees, as discussed in Item 11(a),
pursuant to Section 9.4(c) of the Restated Agreement, as amended, the
Partnership incurs a monthly charge for personnel costs of the Manager for
persons  engaged  in  providing  administrative  services  to  the  Partnership.
A description of the remuneration paid by the Partnership to the Manager for
such services is included in Item 13, herein and in Note 4 to the financial
statements included in Item 14, herein.

    (d) Compensation of Directors

    None.

    (e) Termination of Employment and Change of Control Arrangement

    There exists no remuneration plan or arrangement with the General Partner or
its Affiliates which results or may result from their resignation, retirement or
any other termination.

Item 12. Security Ownership of Certain Beneficial Owners and Management.
------------------------------------------------------------------------

    By virtue of its organization as a limited partnership, the Partnership has
outstanding no securities possessing traditional voting rights.  However, as
provided in Section 10.2(a) of the Restated Agreement, as amended (subject to
Sections 10.2(b) and 10.3), a majority interest of the Limited Partners have
voting rights with respect to:

    1. Amendment of the Restated Agreement;

    2. Termination of the Partnership;

                                      -10-
<PAGE>

    3. Removal of the General Partner; and

    4. Approval or disapproval of the sale of all or substantially all the
       assets of the Partnership (except in the orderly liquidation of the
       Partnership upon its termination and dissolution).

    No person or group is known by the General Partner to own beneficially more
than 5% of the Partnership's 286,711 outstanding Units as of March 1, 1997.

    The ownership and organization of EFG is described in Item 1 of this report.

Item 13.  Certain Relationships and Related Transactions.
---------------------------------------------------------

    The General Partner of the Partnership is AFG Leasing VI Incorporated, an
affiliate of EFG.

    (a) Transactions with Management and Others

    All operating expenses incurred by the Partnership are paid by EFG on behalf
of the Partnership and EFG is reimbursed at its actual cost for such
expenditures.  Fees and other costs incurred during the years ended December 31,
1996, 1995 and 1994, which were paid or accrued by the Partnership to EFG or its
Affiliates, are as follows:
<TABLE>
<CAPTION>

                                     1996       1995       1994
                                   ---------  ---------  ---------

<S>                                <C>        <C>        <C>
Equipment management fees           $ 34,740   $ 59,401   $114,433
Administrative charges                31,872     14,172     12,000
Reimbursable operating expenses
    due to third parties              46,947     53,192     32,230
                                    --------   --------   --------
        Total                       $113,559   $126,765   $158,663
                                    ========   ========   ========
</TABLE>

    As provided under the terms of the Management Agreement, EFG is compensated
for its services to the Partnership.  Such services include all aspects of
acquisition, management and sale of equipment.  For acquisition services, EFG is
compensated by an amount equal to 2.23% of Equipment Base Price paid by the
Partnership.  For management services, EFG is compensated by an amount equal to
the lesser of (i) 5% of gross operating lease rental revenue and 2% of gross
full payout lease rental revenue received by the Partnership or (ii) fees which
the General Partner reasonably believes to be competitive for similar services
for similar equipment.  Both of these fees are subject to certain limitations
defined in the Management Agreement.  Compensation to EFG for services connected
to the sale of equipment is calculated as the lesser of (i) 3% of gross sale
proceeds or (ii) one-half of reasonable brokerage fees otherwise payable under
arm's length circumstances.  Payment of the remarketing fee is subordinated to
Payout and is subject to certain limitations defined in the Management
Agreement.

    Administrative charges represent amounts owed to EFG, pursuant to Section
9.4(c) of the Restated Agreement, as amended, for persons employed by EFG who
are engaged in providing administrative services to the Partnership.
Reimbursable operating expenses due to third parties represent costs paid by EFG
on behalf of the Partnership which are reimbursed to EFG.

    All equipment was purchased from EFG, one of its affiliates, including other
equipment leasing programs sponsored by EFG, or from third-party sellers.  The
Partnership's Purchase Price is determined by the method described in Note 2 to
the financial statements included in Item 14, herein.

    All rents and proceeds from the sale of equipment are paid directly to
either EFG or to a lender.  EFG temporarily deposits collected funds in a
separate interest-bearing escrow account prior to remittance to the

                                      -11-
<PAGE>

Partnership. At December 31, 1996, the Partnership was owed $38,647 by EFG for
such funds and the interest thereon. These funds were remitted to the
Partnership in January 1997.

    On August 18, 1995, Atlantic Acquisition Limited Partnership ("AALP"),
a newly formed Massachusetts limited partnership owned and controlled by certain
principals of EFG, commenced a voluntary cash Tender Offer (the "Offer") for up
to approximately 45% of the outstanding units of limited partner interest in
this Partnership and 20 affiliated partnerships sponsored and managed by EFG.
The Offer was subsequently amended and supplemented in order to provide
additional disclosure to unitholders; increase the offer price; reduce the
number of units sought to approximately 35% of the outstanding units; and extend
the expiration date of the Offer to October 20, 1995.  Following commencement of
the Offer, certain legal actions were initiated by interested persons against
AALP, each of the general partners (4 in total) of the 21 affected programs, and
various other affiliates and related parties.  One action, a class action
brought in the United States District Court for the District of Massachusetts
(the "Court") on behalf of the unitholders (limited partners), sought to enjoin
the Offer and obtain unspecified monetary damages.  A settlement of this
litigation was approved by the Court on November 15, 1995. The Plaintiffs  filed
an appeal in this matter.  On November 26, 1996, the United States Court of
Appeals for the First Circuit handed down a decision affirming the Court's
approval of the settlement.  A second class action, brought in the Superior
Court of the Commonwealth of Massachusetts (the "Superior Court") seeking to
enjoin the Offer, obtain unspecified monetary damages, and intervene in the
first class action, was dismissed by the Superior Court. The limited partners of
the Partnership tendered approximately 11,442 units or 3.99% of the total
outstanding units of the Partnership to AALP.  The operations of the Partnership
were not adversely affected by these proceedings or settlements.  On December 1,
1996, EFG purchased a Class D interest, representing a 49% economic interest in
AALP.

    (b) Certain Business Relationships

    None.

    (c) Indebtedness of Management to the Partnership

    None.

    (d) Transactions with Promoters

    See Item 13(a) above.

                                      -12-
<PAGE>

PART IV

Item 14.  Exhibits, Financial Statement Schedules and Reports on Form 8-K.
--------------------------------------------------------------------------

    (a)  Documents filed as part of this report:

         (1)  Financial Statements:

              Report of Independent Auditors..............................  *

              Statement of Financial Position
              at December 31, 1996 and 1995...............................  *

              Statement of Operations
              for the years ended December 31, 1996, 1995 and 1994........  *

              Statement of Changes in Partners' Capital
              for the years ended December 31, 1996, 1995 and 1994........  *

              Statement of Cash Flows
              for the years ended December 31, 1996, 1995 and 1994........  *

              Notes to the Financial Statements...........................  *

         (2)  Financial Statement Schedules:

              None Required.

         (3)  Exhibits:

              Except as set forth below, all Exhibits to Form 10-K, as set forth
              in Item 601 of Regulation S-K, are not applicable.


    Exhibit
     Number
   ----------

       4      Amended and Restated Agreement and Certificate of Limited
              Partnership included as Exhibit A to the Prospectus which is
              included in Registration Statement on Form S-1 (No. 33-35148).

       13     The 1996 Annual Report to security holders, a copy of which is
              furnished for the information of the Securities and Exchange
              Commission.  Such Report, except for those portions thereof which
              are incorporated herein by reference, is not deemed "filed" with
              the Commission.

       23     Consent of Independent Auditors.

       99 (a) Lease agreement with Horizon Air Industries, Inc. was filed in
              the Registrant's Annual Report on Form 10-K for the year ended
              December 31, 1991 as Exhibit 28 (a) and is incorporated herein by
              reference.

* Incorporated herein by reference to the appropriate portion of the 1996 Annual
  Report to security holders for the year ended December 31, 1996. (See Part II)

                                      -13-
<PAGE>

     Exhibit
      Number
    ----------

       99  (b)  Lease agreement with Fred Meyer, Inc. was filed in the
                Registrant's Annual Report on Form 10-K for the year ended
                December 31, 1991 as Exhibit 28 (b) and is incorporated herein
                by reference.

       99  (c)  Lease agreement with Cyclops Industries, Inc. was filed in the
                Registrant's Annual Report on Form 10-K for the year
                ended December 31, 1991 as Exhibit 28 (c) and is
                incorporated herein by reference.

       99  (d)  Lease agreement with General Motors Corporation was filed in the
                Registrant's Annual Report on Form 10-K for the year ended
                December 31, 1995 as Exhibit 99 (d) and is incorporated herein
                by reference.


      (b) Reports on Form 8-K

      None.

                                      -14-
<PAGE>

                                                                      Exhibit 23


                        CONSENT OF INDEPENDENT AUDITORS

    We consent to the incorporation by reference in this Annual Report (Form 10-
K) of American Income Fund I-B, a Massachusetts Limited Partnership of our
report dated March 14, 1997, included in the 1996 Annual Report to Partners of
American Income Fund I-B.



                                                               ERNST & YOUNG LLP



Boston, Massachusetts
March 14, 1997

                                      -15-
<PAGE>

                                   SIGNATURES

    Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below on behalf of the registrant and in the capacity and
on the date indicated.


         AMERICAN INCOME FUND I-B, a Massachusetts Limited Partnership


                       By: AFG Leasing VI Incorporated,
                       a Massachusetts corporation and the
                       General Partner of the Registrant.



By: /s/ Geoffrey A. MacDonald                 By: /s/ Gary D. Engle
---------------------------------             ---------------------------------
Geoffrey A. MacDonald                         Gary D. Engle
Chairman and a member of the                  President and Chief Executive
Executive Committee of EFG and                Officer and a member of the
President and a Director of the               Executive Committee of EFG
General Partner                               (Principal Executive Officer)





Date:  March 31, 1997                           Date:  March 31, 1997
     ----------------------------                    --------------------------



By: /s/ Gary M. Romano                        By: /s/ Michael J. Butterfield
---------------------------------             ---------------------------------
Gary M. Romano                                Michael J. Butterfield
Executive Vice President and Chief            Vice President, Finance and
Operating Officer of EFG and Clerk            Treasurer of EFG and Treasurer
of the General Partner                        of the General Partner
(Principal Financial Officer)                 (Principal Accounting Officer)



Date:  March 31, 1997                           Date:  March 31, 1997
     ----------------------------                    --------------------------

                                      -16-
<PAGE>

SUPPLEMENTAL INFORMATION TO BE FURNISHED WITH REPORTS FILED PURSUANT TO SECTION
15(D) OF THE ACT BY REGISTRANTS WHICH HAVE NOT REGISTERED SECURITIES PURSUANT TO
SECTION 12 OF THE ACT.

    No annual report has been sent to the Limited Partners.  A report will be
furnished to the Limited Partners subsequent to the date hereof.

    No proxy statement has been or will be sent to the Limited Partners.

                                      -17-