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

                                  FORM 10-K

(X) ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE
ACT OF 1934

For the fiscal year ended      Commission file number 33-32744
December 31,1999

             CSA Income Fund IV Limited Partnership
        (Exact name of registrant as specified in its charter)

        Massachusetts                          No.04-3072449
(State or other jurisdiction of               (I.R.S.Employer
incorporation or organization)                 Identification No.)

22 Batterymarch St., Boston, MA                        02109
(Address of principal executive                       Zip Code
           offices)

Registrant's telephone number, including area code:(617)357-1700
Securities registered pursuant to Section 12(b) of the Act: None
Securities registered pursuant to Section 12(g) of the Act: 506,776
                   Units of Limited Partnership Interest

Indicate by check whether 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 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     X     No

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-K is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-K or any amendment to
this Form 10-K.  [  X ]

Number of shares outstanding of each registrant's classes of securities:


    Title of Each Class                       Number of Units
 Units of Limited Partnership                  at December 31, 1999
Interest:  $100 per unit                            506,776

                  DOCUMENTS INCORPORATED BY REFERENCE
           Portions of Part IV are incorporated by reference
             to Amendment No. 1 to Form S-1 and Form S-1,
                    Registration No. 33-32744

The exhibit index is located on pages 18 and 19.

<PAGE>

                              Part I

Item 1.  Business

CSA Income Fund IV Limited Partnership (the "Partnership") is a limited
partnership organized under the provisions of the Massachusetts Uniform Limited
Partnership Act. The Partnership is composed of CSA Lease Funds, Inc. (an
affiliate of CSA Financial Corp.), the sole General Partner, and as of
December 31, 1999, 2,707 Limited Partners owning 506,776 Units of Limited
Partnership Interest of $100 each. The capital contributions of the Partners
aggregated $50,677,600.  The Partnership was formed on December 21, 1989 and
commenced operations on April 18, 1990.

The Partnership was organized to engage in the business of acquiring
income-producing equipment for investment.  The Partnership's principal
objectives are:

1. To acquire and lease equipment, primarily through Operating Leases,
   to generate income during their entire useful life;

2. To provide monthly distributions of cash to the Limited Partners
   from leasing revenues and from the proceeds of sale or other
   disposition of Partnership equipment;

3. To reinvest in additional equipment a portion of lease revenues and
   a substantial portion of Cash From Sales and Refinancing during the
   first years of the Partnership's operations.

The Partnership was formed primarily for investment purposes and not as a "tax
shelter".

The Partnership shall terminate on December 31, 2014 unless sooner terminated.

The Partnership has no direct employees.  The General Partner has full and
exclusive discretion in management and control of the Partnership.

Selection of the equipment for purchase and lease is based principally on the
General Partner's evaluation of the usefulness of the equipment in commercial
or industrial applications and its estimate of the potential demand for the
equipment at the end of the initial lease term.

The Partnership's equipment may include:

1. New and reconditioned computer peripheral equipment, computer terminal
   systems and data processing systems manufactured by companies such as Compaq
   Computer Corporation, Dell Computer Corporation, EMC Corporation and
   International Business Machines, Inc. (IBM).

2. New telecommunications and telecomputer equipment consisting
   primarily of private automated branch exchanges (PBX's), advanced
   high-speed digital telephone switching devices, voice/data
   transmission devices and telephone/computer networks as well as
   telephone handsets and facsimile transmission products.

3. New office equipment consisting primarily of photocopying and
   graphic processing equipment.

<PAGE>
4. New highway transportation equipment and new and reconditioned
   transportation equipment consisting primarily of tractors,
   trailers, trucks, intermodal equipment, railroad rolling stock,
   passenger vehicles and corporate or commercial aircraft.

5. Miscellaneous other types of equipment which meet the investment
   objectives of the Partnership.

The equipment leasing industry is highly competitive.  In initiating its leasing
transactions, the Partnership competes with leasing companies, manufacturers
that lease their products directly, equipment brokers, dealers and financial
institutions, including commercial banks and insurance companies.  Many
competitors are larger than the Partnership and have access to more favorable
financing.  Competitive factors in the equipment leasing business primarily
involve pricing and other financial arrangements.  Marketing capability is
also a factor.

As of December 31, 1999, substantially all of the remaining equipment in the
Partnership's portfolio was leased under 136 separate leases to 72 lessees. The
lessees providing at least 10% of total revenues during 1999 are as follows:
<TABLE>
                           <S>                        <C>
    America Online Inc.                               22%
    Siemens Business Communications Systems, Inc.     12%
</TABLE>

As of December 31, 1999, approximately 12% of the Partnership's equipment
portfolio (based on cost) is leased outside the United States. The Partnership's
leases and equipment are described more fully in Notes 3 and 4 to the
Financial Statements included in Item 8.

Item 2.  Properties

The Partnership neither owns nor leases office space or equipment for the
purpose of managing its day-to-day affairs.  The General Partner, CSA Lease
Funds, Inc. ("CLF"), has exclusive control over all aspects of the business
of the Partnership, including provision of any necessary office space.  As
such, CLF will be compensated through Management fees and reimbursement of
General and Administrative costs related to managing the Partnership's
business.  Excluded from the allowable reimbursement to the General Partner,
however, will be any of the following:  (1) Expenditures for rent or
utilities; (2) Capital equipment and the related depreciation; and
(3) Certain other administrative items.

Item 3.  Legal Proceedings

The Partnership is not a party to any pending legal proceedings.

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

No matters were submitted to a vote of security holders, through the
solicitation of proxies or otherwise, during the fourth quarter of 1999.

<PAGE>
                                   PART II

Item 5.  Market for the Registrant's Equity Securities and Related
         Security Holder Matters

a. The Partnership's limited partnership interests are not publicly traded.
   There is no active market for the Partnership's limited partnership interests
   and it is unlikely that one will develop. However, partners have received
   offers to purchase their Limited Partnership units from third parties. In
   such cases the General Partner has recommended the partner should consult
   their Financial Advisors.  If the partner still has intentions of selling
   their units, the General Partner, through its affiliate CSA Financial Corp.
   ("CSA"), would be willing to make an offer. In certain cases, CSA has
   purchased Partnership units.

b. Approximate Number of Equity Security Holders:

               Title of Class               Number of Limited Partners
    Units of Limited Partnership Interests      as of 12/31/99
                  506,776                            2,707


Item 6.  Selected Financial Data

The following table sets forth selected financial information regarding the
Partnership's financial position and operating results.The information should
be used in conjunction with the Financial Statements and Notes thereto, and
the General Partner's Discussion and Analysis of Financial Condition and
Results of Operations, which are included in Items 7 and 8 of this Report.
<TABLE>

<CAPTION>

                        Years Ended December 31,
                  (IN THOUSANDS EXCEPT PER UNIT AMOUNTS)

                  1999        1998        1997          1996         1995
<S>               <C>          <C>         <C>           <C>          <C>
Total
Revenues         $15,329     $16,987      $13,488       $17,641    $21,917

Net Income         1,250       2,671        2,716         1,772        858

Net Income
 per Limited
 Partnership
 Unit               2.44        5.22         5.31          3.46       1.68

Total Assets      21,620      30,692       36,736        25,498     33,734

Notes Payable      8,186      15,204       20,923         7,573     13,804

Limited Recourse
 Notes Payable         -           -            -           229        581

Cash Distribution
 per Limited
 Partnership Unit
 Outstanding       $6.33      $ 6.00       $ 7.00        $ 8.00     $ 8.00
</TABLE>
<PAGE>

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

Results of Operations
Rental income for the years ended December 31, 1999, 1998 and 1997 was
$14,903,995, $16,031,035, and $12,413,441, respectively. Net income for the
years ended December 31, 1999, 1998 and 1997 was $1,249,602, $2,670,654, and
$2,716,253, respectively. The decrease in rental income and net income is
primarily due to the anticipated lease expirations as the partnership ages.
Net income was also affected, in comparison, by a gain on sale of equipment
in 1999 of $258,512, as compared to $863,210, and $865,137 for the years
ended 1998 and 1997. Depreciation expense for 1999, 1998 and 1997 was
$11,508,608, $10,967,117, and $8,072,215, respectively.

Interest income for 1999, 1998 and 1997 was $158,617, $69,999, and $124,960,
respectively. Interest expense was $1,050,363, $1,626,363, and $1,123,693 for
the years ended December 31, 1999, 1998, and 1997, respectively.

Liquidity and Capital Resources

During 1999, the Partnership generated  $12,503,473 in cash flow from operations
and $2,805,158 from the sale of equipment. The Partnership utilized these
funds and proceeds from notes payable of $3,192,141 to reduce outstanding
notes payable by $10,210,436, make cash distributions of $3,242,000 and
acquire additional equipment of $2,230,104.

As of December 31, 1999, the Partnership had approximately $1,000,000 in
equipment off lease and in storage.  The General Partner expects to remarket
this equipment during the first half of year 2000.

The Partnership will continue to invest in select short term leases that will
maximize the total return of the Limited Partners.  On February 23, 1998, the
Partnership reached its five year Anniversary Date of Closing.  As of that
anniversary date, no additional cash receipts from operations or sale of
equipment can be used for the purchase of equipment. However, cash on hand
and cash from the financing of existing leases may be used for purchase of
equipment. The Partnership has approximately $1,200,000 available to invest
in equipment during year 2000.

The Partnership's liquidity is determined by cash from operations provided by
the leases currently in place. It is expected that this cash flow will be
sufficient to service outstanding debt, pay monthly distributions to the
partners and meet any other commitments and obligations which may arise in
the ordinary course of business.

To date, the Partnership has made cash distributions to the Limited Partners
ranging from 63% to 85% of their initial investment, depending on when the
Limited Partner entered the Partnership. The objective of the Partnership is
to return the Limited Partners' investment through current distributions and
provide a return on this investment by continued distributions.

The Partnership will continue to seek high yielding short term leases to
maximize the overall return to the Limited Partners.  The General Partner, as
previously stated, anticipates beginning the wind-up of the Partnership
in year 2000, which may continue into calendar year 2002.

CSA Income Fund IV Limited Partnership increased the monthly distribution as
of November 15th from an annualized rate of 6% to 8%. Future distributions will
be based on the Partnership's current cash position, as well as, forecasted
cash flow projections.
<PAGE>

Management reviews the Partnership's projected performance on a periodic basis.
Based on an analysis of the remaining assets in the Partnership's portfolio
completed as part of the annual audit process, the General Partner presently
estimates that the continued cash distributions will return the entire initial
investment of the Limited Partners and a return thereon. However, the magnitude
of the return may be lower than originally anticipated at the inception of
the Partnership. The General Partner will continue to report on the Limited
Partners' return of investment with each cash distribution.

The General Partner completed year 2000 ("Y2K") compliant requirements during
1999 and the Company has experienced no "Y2K" related problems in year 2000
to date.

Quarterly Financial Data - unaudited

Summarized unaudited quarterly financial data for the years ended December 31,
1999 and 1998 are as follows:
<TABLE>
<CAPTION>

1999 Quarter Ended:      12/31        9/30        6/30         3/31
<S>                       <C>          <C>         <C>          <C>
Total Revenues       $3,658,063   $3,397,732   $4,150,098   $4,123,092
Net Income              115,912      227,711      488,119      417,860
Net Income
  Per Limited
  Partnership Unit
  Outstanding               .22          .45          .95          .82
Cash Distributions
  Per Limited
  Partnership Unit
  Outstanding              1.83         1.50         1.50         1.50

1998 Quarter Ended:      12/31        9/30        6/30         3/31
Total Revenues       $4,423,594   $4,170,840   $4,592,471   $3,800,197
Net Income              558,218      592,558    1,074,794      445,084
Net Income
  Per Limited
  Partnership Unit
  Outstanding              1.09         1.16         2.10          .87
Cash Distributions
  Per Limited
  Partnership Unit
  Outstanding              1.50         1.50         1.50         1.50
</TABLE>


Item 7A. Quantitative and Qualitative Disclosures about Market Risk

N/A
<PAGE>

Item 8. Financial Statements




                       CSA Income Fund IV Limited Partnership

                          Index to Financial Statements

<TABLE>

                                                          Page
                                                          Number
<S>                                                        <C>
Independent Auditors' Report                                8

Statements of Financial Position
as of December 31, 1999 and 1998                            9

Statements for the Years Ended
December 31, 1999, 1998 and 1997


   Operations                                               10

   Cash Flows                                               11

   Changes in Partners' Capital (Deficit)                   12


Notes to Financial Statements                               13


</TABLE>
<PAGE>

              INDEPENDENT AUDITORS' REPORT



To the Partners of CSA Income Fund IV Limited Partnership


We have audited the accompanying statements of financial position of CSA Income
Fund IV Limited Partnership as of December 31, 1999 and 1998, and the related
statements of operations, cash flows, and changes in partners' capital
(deficit) for the three years then ended. These financial statements are the
responsibility of the Partnership's management. Our responsibility is to
express an opinion on these financial statements based on our audits.

We conducted our audits in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to
obtain reasonable assurance about whether the financial statements are free of
material misstatement. An audit includes examining, on a test basis, evidence
supporting the amounts and disclosures in the financial statements. An audit
also includes assessing the accounting principles used and significant
estimates made by management, as well as evaluating the overall financial
statement presentation. We believe that our audits provide a reasonable
basis for our opinion.

In our opinion, the financial statements referred to above present fairly, in
all material respects, the financial position of CSA Income Fund IV Limited
Partnership as of December 31, 1999 and 1998, and the results of its
operations and its cash flows for the three years then ended in conformity
with generally accepted accounting principles.


Sullivan Bille, P.C.



Boston, Massachusetts
March 15, 2000

<PAGE>
<TABLE>
<CAPTION>
                       CSA INCOME FUND IV LIMITED PARTNERSHIP
                       Statements of Financial Position as of
                              December 31, 1999 and 1998

                                         1999               1998
<S>                                       <C>                <C>
Asset
Cash and cash equivalents              $3,679,408      $   560,193
Rentals receivable                        326,758          391,628
Accounts receivable-affiliates            223,076          524,059
Other receivable                                -          218,343

Rental equipment, at cost              52,073,878       59,956,146
   Less accumulated depreciation      (34,683,355)     (30,958,816)

         Net rental equipment          17,390,523       28,997,330


Total assets                          $21,619,765      $30,691,553


Liabilities and Partners' Capital
Accrued management fees               $    93,749      $   127,500
Accrued interest expense                   11,562           32,965
Accounts payable                           12,982           24,745
Deferred income                           138,508          132,686
Notes payable                           8,185,541       15,203,836

         Total liabilities              8,442,342       15,521,732

Partners' capital:
  General Partner:
   Capital contribution                     1,000            1,000
   Cumulative net income                   51,158           38,662
   Cumulative cash distributions         (386,554)        (354,134)
                                         (334,396)        (314,472)
  Limited Partners (506,776 units):
   Capital contributions net of
    offering costs                     46,201,039       46,201,039
   Cumulative net income                5,064,472        3,827,366
   Cumulative cash distributions      (37,753,692)     (34,544,112)
                                       13,511,819       15,484,293
   Total partners' capital             13,177,423       15,169,821

Total liabilities and
     partners' capital                $21,619,765      $30,691,553
</TABLE>

        See accompanying notes to financial statements.

<PAGE>
<TABLE>
<CAPTION>


                      CSA INCOME FUND IV LIMITED PARTNERSHIP

                             Statements of Operations
                for the years ended December 31, 1999, 1998 and 1997

                                 1999             1998            1997
<S>                               <C>              <C>             <C>
Revenue:
  Rental income              $14,903,995     $16,031,035    $12,413,441
  Interest income                158,617          69,999        124,960
  Gain on sale of
   equipment                     258,512         863,210        865,137
  Net gain on foreign
   currency transactions           7,861          22,858         83,999
     Total revenue            15,328,985      16,987,102     13,487,537


Expenses:
  Depreciation                11,508,608      10,967,117      8,072,215
  Interest                     1,050,363       1,626,363      1,123,693
  Management fees              1,193,749       1,456,914      1,288,394
  General and
   administrative                326,663         266,054        286,982

     Total expenses           14,079,383      14,316,448     10,771,284

  Net income                 $ 1,249,602     $ 2,670,654    $ 2,716,253

Income allocation:
   General Partner           $    12,496     $    26,707    $    27,163
   Limited Partners            1,237,106       2,643,947      2,689,090


                              $1,249,602     $ 2,670,654    $ 2,716,253

Net income per
   Limited Partnership Unit  $      2.44     $      5.22    $      5.31

Number of
Limited Partnership
units outstanding               506,776          506,776        506,776
</TABLE>


               See accompanying notes to financial statements.


<PAGE>
<TABLE>
<CAPTION>

                     CSA INCOME FUND IV LIMITED PARTNERSHIP
                         Statements of Cash Flows for the
                  years ended December 31, 1999, 1998 and 1997

                                       1999           1998          1997
<S>                                     <C>            <C>           <C>
Cash flows from operations:
Cash received from rental
  of equipment                     $15,033,838    $16,314,730   $13,073,527
 Cash paid for operating and
  management expenses               (1,617,216)   ( 1,717,777)   (1,511,339)
 Interest paid                      (1,071,766)   ( 1,645,658)   (1,141,088)
 Interest received                     158,617         69,999       124,960

   Net cash from operations         12,503,473     13,021,294    10,546,060


Cash flows from investments:
 Value added tax deposits                    -              -        77,483
 Purchase of equipment              (2,230,104)    (7,423,505)  (24,487,895)
 Sale of equipment                   2,805,158      2,237,768     5,793,771

   Net cash (used for)
     provided by investments           575,054     (5,185,737)  (18,616,641)


Cash flows from financing:
  Advances (to) from
  affiliates                           300,983       (231,255)     (908,343)
 Proceeds from notes payable         3,192,141      5,070,515    19,876,925
 Repayment of notes payable        (10,210,436)   (10,790,020)   (6,755,179)
 Payment of cash
  distributions                     (3,242,000)    (3,071,370)   (3,583,264)

   Net cash (used for)
     provided by financing          (9,959,312)    (9,022,130)    8,630,139

Net change in cash and
  cash equivalents                   3,119,215     (1,186,573)      559,558


Cash and cash equivalents
  at beginning of year                 560,193      1,746,766     1,187,208


Cash and cash equivalents
  at end of year                    $3,679,408    $   560,193   $ 1,746,766
</TABLE>

          See accompanying notes to financial statements.


<PAGE>
<TABLE>
<CAPTION>

                    CSA INCOME FUND IV LIMITED PARTNERSHIP

            Statement of Changes in Partners' Capital (Deficit)

              For years ended December 31, 1999, 1998, and 1997


                                Limited        General
                                Partners       Partner        Total
<S>                               <C>            <C>           <C>
Balance at December 31,1996    $16,739,343  $  (301,795)  $16,437,548

Net income                       2,689,090       27,163     2,716,253

Cash distributions              (3,547,431)    ( 35,833)   (3,583,264)


Balance at December 31, 1997    15,881,002     (310,465)   15,570,537


Net income                       2,643,947       26,707     2,670,654

Cash distributions              (3,040,656)    ( 30,714)   (3,071,370)

Balance at December 31, 1998    15,484,293     (314,472)   15,169,821


Net income                       1,237,106       12,496     1,249,602

Cash distributions              (3,209,580)    ( 32,420)   (3,242,000)

Balance at December 31, 1999   $13,511,819  $  (334,396)  $13,177,423

</TABLE>

See accompanying notes to financial statements


<PAGE>



                             CSA INCOME FUND IV LIMITED PARTNERSHIP
                                 Notes to Financial Statements
                                     December 31, 1999

(1)  Organization

CSA Income Fund IV Limited Partnership ("the Partnership") was formed under the
Massachusetts Uniform Limited Partnership Act on December 21, 1989 with an
initial investment of $1,000, from its sole General Partner, CSA Lease Funds,
Inc. and the purchase of 10 Limited Partnership Units at $100 each by an
initial Limited Partner. The Partnership's primary activity is to invest in
equipment to be leased to third parties.  On February 22, 1990, the
Partnership began its offering of Limited Partnership Units.  The Partnership
commenced operations on April 18, 1990. As of December 31, 1999, the
Partnership has 506,776 units of Limited Partnership interest outstanding
representing aggregate capital contributions of $50,677,600.

Distributable cash from operations, sales or refinancing and profits or losses
for federal income tax purposes are allocated 99% to the Limited Partners and
1% to the General Partner until Payout has occurred, and thereafter, 85% and
15% respectively. Payout is achieved when the aggregate amount of all
distributions to the Limited Partners equals the amount of the Limited
Partners' original invested capital plus a cumulative 9% annual return
(compounded daily) on unreturned invested capital.

In accordance with the Partnership Agreement, the Partnership is liable to the
General Partner (or its affiliates) for management fees calculated at 5% of
gross rental revenues and to certain reimbursable operating expenses subject
to limitations stated in the Partnership Agreement.

(2)  Significant Accounting Policies

The Partnership records are maintained on the accrual basis of accounting.

The Partnership accounts for equipment leases as operating leases; therefore,
rental income is reported when earned. Equipment purchases are depreciated on
a straight-line basis over the initial term of the lease to estimated
realizable value. On a periodic basis, the Partnership conducts a review of
the residual value of its equipment as compared to the estimated net
realizable values for such equipment upon expiration of the related lease.
In connection with this review , there were no residual values depreciation
adjustments in 1999 or 1998. In the year ended December 31, 1997, the
Partnership recorded additional charges of $74,500 to depreciation expense.

Deferred income represents prepaid rentals received for active leases that are
recognized when earned.

No provision for income taxes has been made as the liability for such taxes is
that of the Partners rather than the Partnership. The Partnership's federal
tax return is prepared solely to arrive at the Partners' individual taxable
income or loss as reported on form K-1. Partnership taxable income (loss)
in 1999, 1998 and 1997 was $3,058,315, $1,271,389, and ($7,349,952),
<PAGE>


                         CSA INCOME FUND IV LIMITED PARTNERSHIP
                           Notes to Financial Statements

respectively.  The differences between Partnership taxable income and book
income are primarily due to the difference between tax and book depreciation
methods and the related differences in the gain or loss on sales of equipment.

The Partnership considers short-term investments with original maturities of
three months or less to be cash equivalents.

The preparation of financial statements in conformity with generally accepted
accounting principles requires the General Partner to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities as of the date of the financial
statements and the reported amounts of revenue and expenses during the
reporting year.  Actual results could differ from those estimates.

(3)  Rental Equipment

The Partnership purchases equipment subject to existing leases either
directly from CSA Financial Corp. or the manufacturer.  The purchase price to
the Partnership is equal to the lesser of fair market value or cost as
adjusted, if necessary, for rents received and carrying costs, plus an
acquisition fee of 4% of cost. In accordance with Section 6.4 (b) of the
Partnership Agreement, the total of all acquisition fees paid to the General
Partner shall not exceed 15% of the total Capital Contributions received by
the Partnership. This lifetime acquisition fee limit was met during 1996
and the General Partner is no longer paid acquisition fees on any new
Partnership equipment acquisitions. On February 23, 1998, the Partnership
reached its five year Anniversary Date of Closing. As of that anniversary
date, no additional cash receipts from operations or sale of equipment can
be used for the purchase of equipment. However, cash on hand and cash from
the financing of existing leases may be used for purchase of equipment.
The Partnership has approximately $1,200,000 available to invest in
equipment during year 2000.

A summary of changes in rental equipment owned and its related accumulated
depreciation is as follows:
<TABLE>
<CAPTION>
                   Beginning                                Ending
                    Balance       Additions      Sales      Balance
<S>                   <C>            <C>          <C>         <C>
Costs for years ended:

December 31, 1997  $59,434,351   $24,487,895  $24,604,206  $59,318,040

December 31, 1998  $59,318,040   $ 7,423,505  $ 6,785,399  $59,956,146

December 31, 1999  $59,956,146   $ 2,230,104  $10,112,372  $52,073,878

Accumulated depreciation for
the years ended:

December 31, 1997  $36,646,360   $ 8,072,215  $19,525,088  $25,193,487

December 31, 1998  $25,193,487   $10,967,117  $ 5,201,788  $30,958,816

December 31, 1999  $30,958,816   $11,508,608  $ 7,784,069  $34,683,355

</TABLE>
<PAGE>

                            CSA INCOME FUND IV LIMITED PARTNERSHIP
                                 Notes to Financial Statements

(4)  Leases

As of December 31, 1999, substantially all of the Partnership's equipment was
leased under 136 separate leases to 72 lessees.  Approximately 12% of the
Partnership's equipment portfolio (based on cost) has been leased outside the
United States.  Two lessees represented approximately 34% (22% and 12%,
respectively) of the Partnership's revenues in 1999 as compared to two
lessees representing 41% (21% and 20%, respectively) in 1998 and two lessees
representing 28% (15% and 13%, respectively) in 1997.

Minimum annual lease rentals scheduled to be received under existing
noncancellable operating leases are as follows:
<TABLE>

                          Year                 Amount
                          <S>                    <C>
                          2000               $ 7,870,963
                          2001                 2,379,029
                          2002                   241,579
                          2003                   170,052
                                             $10,661,623

</TABLE>



(5)  Notes Payable

Notes payable consist of nonrecourse notes due in monthly, quarterly and annual
installments, with interest rates that range from 6.57% to 10.50% per annum.
Such notes are collateralized by equipment with a cost of $31,554,821. Annual
maturities of notes payable at December 31, 1999, are as follows:

<TABLE>
                            Year               Amount
                             <S>                <C>
                            2000             $ 6,150,882
                            2001               1,718,098
                            2002                 153,085
                            2003                 163,475
                                             $ 8,185,540

</TABLE>

<PAGE>


                         CSA INCOME FUND IV LIMITED PARTNERSHIP
                               Notes to Financial Statements

(6)  Fair Values of Financial Instruments

The following methods and assumptions were used to estimate the fair value of
financial instruments:

Cash and Cash Equivalents
The carrying amount of cash and cash equivalents approximates its fair value
due to their short maturity.

Notes Payable
The fair value of the Partnership's notes payable is based on the market
price for the same or similar debt issues or on the current rates offered to
the Partnership for debt with the same remaining maturity. The  carrying
amount of notes payable approximates fair value.

(7)  Related Party Transactions

Fees and other expenses paid or accrued by the Partnership to the General
Partner or affiliates of the General Partner for 1999, 1998 and 1997 are
as follows:
<TABLE>

                                   1999            1998          1997
<S>                                <C>              <C>           <C>
Management fees                 1,193,749       1,456,914        1,288,394
Reimbursable operating
  expenses                        183,055         172,879          182,862
                               $1,376,804      $1,629,793       $1,471,256
</TABLE>

(8)  Net Cash Provided from Operations

The reconciliation of net income to net cash from operations for 1999, 1998
and 1997 is as follows:
<TABLE>

                                  1999           1998            1997
 <S>                               <C>            <C>             <C>
Net Income                    $ 1,249,602     $ 2,670,654      $ 2,716,253
Gain on sale of equipment        (258,512)       (863,210)        (865,137)
Depreciation                   11,508,608      10,967,117        8,072,215
Decrease in
 receivables                       64,870         171,040          457,258
Other                                   -               -          133,090
(Decrease) Increase in payables
 and deferred income              (61,095)         75,693           32,381

Net cash from operations      $12,503,473     $13,021,294      $10,546,060
</TABLE>

(9)  Net Gain on Foreign Currency Transactions

Net gain from foreign currency transactions resulted from exchange gains and
losses on certain leases which call for the payment of rentals in British
Pound Sterling.
<PAGE>


Item 9.  Changes in and Disagreements with Accountants on Accounting
               and Financial Disclosures
None


                                    PART III


Item 10.  Directors and Executive Officers of the Registrant

The Partnership has no directors or officers.  All management functions are
performed by CSA Lease Funds, Inc., the corporate General Partner. The
current directors and officers of the corporate General Partner are:
<TABLE>

     Name            Age        Title(s)            Elected
     <S>             <C>          <C>                 <C>
J. Frank Keohane      63   Director & President     04/01/88
Richard P. Timmons    45   Controller               03/01/95
Trevor A. Keohane     33   Director                 05/28/93
Paul A. Hoiriis       28   Clerk                    03/01/00
</TABLE>

Term of Office:  Until a successor is elected.


Item 11.  Executive Compensation

(a), (b), (c), (d) and (e):  The Officers and Directors of the General
Partner receive no current or proposed direct remuneration in such
capacities, pursuant to any standard arrangements or otherwise, from the
Partnership.  In addition, the Partnership has not paid and does not propose
to pay any options, warrants or rights to the Officers and Directors of the
General Partner.  There exists no remuneration plan or arrangement with any
Officer or Director of the General Partner resulting from resignation,
retirement or any other termination.  See Note 7 of the Notes to Financial
Statements included in Item 8 of this report for a description of the
remuneration paid by the Partnership to the General Partner and its
affiliates.

<PAGE>

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 for in Section 13.2 of the Agreement of Limited Partnership (subject
to Section 13.3), a majority in interest of the Limited Partners have voting
rights with respect to:



1.  Amendment of the Limited Partnership Agreement.

2.  Termination of the Partnership.

3.  Removal of the General Partner.

4.  Approval or disapproval of the sale of substantially all the
assets of the Partnership if such sale occurs prior to February 22,
1997.

No person or group is known by the General Partner to own beneficially more
than 5% of the Partnership's outstanding Limited Partnership Units as of
December 31, 1999.


Item 13.  Certain Relationships and Related Transactions

An affiliate of the General Partner also acted as General Partner for CSA
Income Fund Limited Partnership III, which Partnership completed the wind-up
of its affairs as of September 30, 1999.


                                   PART IV

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

(a)  (1)  Financial Statements - See accompanying Index to Financial
          Statements - Item 8.

     (2)  Financial Statement Schedules - All schedules have been
          omitted as not required, not applicable or the information
          required to be shown therein is included in the Financial
          Statements and related notes.


     (3)  Exhibits Index


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

<PAGE>

<TABLE>

                                                  Page Number or
Exhibit                                           Incorporated by
Number                 Description                   Reference____
 <S>                      <C>                           <C>
 4.1         Agreement of Limited Partnership            *

 4.2         Subscription Agreement                      **

 4.3         Certificate of Limited Partnership and      ***
             Agreement of Limited Partnership dated
             April 8, 1988

 4.4         First Amended and Restated Certificate      ****
             of Limited Partnership and Agreement
             of Limited Partnership dated June 22,
             1988

10.1         Escrow Agreement                             ***

12.0         First Amendment to Agreement of Limited
             Partnership                                  *****

27.1         Financial Data Schedule
</TABLE>

*     Included as Exhibit A to Amendment No. 1 to Form S-1,
      Registration Statement No. 0-19939 filed with the Securities
      and Exchange Commission on June 23, 1988.

**    Included as Exhibit C to Amendment No. 1 to Form S-1 to
      Registration Statement No. 0-19939 filed with the Securities and
      Exchange Commission on June 23, 1988.

***   Included with the Exhibit Volume to Form S-1, Registration
      Statement No. 0-19939 filed with the Securities and Exchange
      Commission on April 15, 1988.

****  Included with the Exhibit Volume to Amendment No. 1 to Form S-1,
      Registration Statement No. 0-19939 filed with the Securities and
      Exchange Commission on June 23, 1988.

***** Included in Consent Statement filed on August 3, 1994.



 (b)  Reports on Form 8-K: There were no reports filed during the
      fourth quarter of 1999.

<PAGE>


                                 Signatures


Pursuant to the requirements of Section 13 or 15(d) of the Securities
Exchange Act of 1934, the registrant has duly caused this report to be
signed on its behalf by the undersigned, thereunto duly authorized.


                             CSA Income Fund IV Limited
                              Partnership (Registrant)
                              By its General Partner,
                                CSA Lease Funds, Inc.


Date:

                                 J. Frank Keohane, President

Pursuant to the requirements of the Securities Exchange Act of 1934,
this report has been signed below by the following persons on behalf
of the registrant and in the capacities and on the dates indicated.

                           By its General Partner,
                           CSA Lease Funds, Inc.



Date:
                                 J. Frank Keohane
                                 President & Director
                                 Principal Executive Officer




Date:
                                  Richard P. Timmons
                                  Corporate Controller
                                  Principal Accounting and
                                  Finance Officer