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

                                    FORM 10-Q/A

[ X ]         QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF
            THE SECURITIES EXCHANGE ACT OF 1934 For the period ended
                               September 30, 2000

                                       OR

[   ]          TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF
                       THE SECURITIES EXCHANGE ACT OF 1934
              For the transition period from ________ to ________.

                         Commission File Number: 0-18147


                 DEAN WITTER REALTY INCOME PARTNERSHIP IV, L.P.
         --------------------------------------------------------------
         (Exact name of registrant as specified in governing instrument)


         Delaware                                          13-3378315
----------------------                        ----------------------------------
(State of organization)                       (IRS Employer Identification No.)



   2 World Trade Center, New York, NY                        10048
----------------------------------------                  -----------
(Address of principal executive offices)                   (Zip Code)



Registrant's telephone number, including area code: (212) 392-2974
                                                    --------------

Former name, former address and former fiscal year, if changed since last
report: not applicable

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           No     X
                                                    -------      ---------



<PAGE>


The registrant is filing this Quarterly Report on Form 10-Q/A because it
inadvertently failed to file one of its May 23, 2000 Form 8-Ks
during the 12 months preceding the original filing of the Report.  Accordingly,
this Report indicates on the cover page that in the 12 months preceding the
filing of its original Report, the registrant did not file all reports required
to be filed by Section 13 or Section 15(d) of the Securities Exchange Act of
1934.  The registrant has since filed the report.



                         PART I - FINANCIAL INFORMATION

Item 1.  Financial Statements

                 DEAN WITTER REALTY INCOME PARTNERSHIP IV, L.P.

                                 BALANCE SHEETS


                                                  September 30,  December 31,
                                                       2000         1999
------------------------------------------------------------------------------

                                     ASSETS
Cash and cash equivalents                           $1,538,536   $ 2,225,631
Investment in joint venture                              -         8,111,989
Other assets                                             1,564        94,894
------------------------------------------------------------------------------
                                                    $1,540,100   $10,432,514
==============================================================================

                        LIABILITIES AND PARTNERS' CAPITAL

Accounts payable and accrued liabilities            $  212,004   $   109,196
Distributions payable to General Partners              133,638          -
------------------------------------------------------------------------------
                                                       345,642       109,196
------------------------------------------------------------------------------
Partners' capital (deficiency):
   General partners                                 (5,532,825)    (5,432,367)
   Limited partners
    ($500 per Unit, 304,437 Units issued)            6,727,283    15,755,685
------------------------------------------------------------------------------
                                                     1,194,458    10,323,318
==============================================================================
                                                    $1,540,100   $10,432,514
==============================================================================




                 See accompanying notes to financial statements.


<PAGE>




                 DEAN WITTER REALTY INCOME PARTNERSHIP IV, L.P.

                            STATEMENTS OF OPERATIONS

             Three and nine months ended September 30, 2000 and 1999


                                    Three months ended   Nine months ended
                                       September 30,       September 30,
                                      2000        1999      2000        1999
------------------------------------------------------------------------------
Revenues:
   Equity in (loss)earnings of
     joint venture               $(12,807)   $ 174,790   $5,265,203 $ 407,881
   Interest and other              19,888       20,754      182,091    53,600
------------------------------------------------------------------------------

                                    7,081      195,544    5,447,294   461,481
------------------------------------------------------------------------------

Expenses:
   General and administrative      51,760       47,305      133,977   140,916
------------------------------------------------------------------------------

Net (loss) income                $(44,679)    $148,239   $5,313,317 $ 320,565
==============================================================================

Net (loss) income allocated to:
   Limited partners              $(40,211)    $142,916   $5,280,137 $ 298,009
General partners                   (4,468)       5,323       33,180    22,556
------------------------------------------------------------------------------
                                 $(44,679)    $148,239   $5,313,317 $ 320,565
==============================================================================
Net (loss) income per Unit of
  limited partnership interest     $(0.13)       $0.47       $17.34     $0.98
==============================================================================





                 See accompanying notes to financial statements.


<PAGE>


                DEAN WITTER REALTY INCOME PARTNERSHIP IV, L.P.

                         STATEMENT OF PARTNERS' CAPITAL

                      Nine months ended September 30, 2000


                                      Limited        General
                                      Partners       Partners        Total
--------------------------------------------------------------------------------
Partners' capital (deficiency)
at January 1, 2000                 $ 15,755,685     $ (5,432,367)  $ 10,323,318
Net income                            5,280,137           33,180      5,313,317

Distribution                        (14,308,539)    $   (133,638)   (14,442,177)
--------------------------------------------------------------------------------

Partners' capital (deficiency)
at September 30, 2000              $  6,727,283     $ (5,532,825)  $  1,194,458
================================================================================




                 See accompanying notes to financial statements.


<PAGE>


                DEAN WITTER REALTY INCOME PARTNERSHIP IV, L.P.

                            STATEMENTS OF CASH FLOWS

                Nine months ended September 30, 2000 and 1999


                                                          2000        1999
------------------------------------------------------------------------------
Cash flows from operating activities:
   Net income                                         $5,313,317  $   320,565
   Adjustments to reconcile net income to net cash
     provided by (used in) operating activities:
     Equity in earnings of joint venture              (5,265,203)    (407,881)
     Decrease (increase) in other assets                  93,330     (196,556)
     Increase (decrease) in accounts payable and
       accrued liabilities                               102,808      (49,964)
------------------------------------------------------------------------------
     Net cash provided by (used in) operating
       activities                                        244,252     (333,836)
------------------------------------------------------------------------------

Cash flows from investing activities:
   Distributions from joint venture                   13,885,591      734,710
   Additional investments in joint venture              (508,399)    (108,929)
------------------------------------------------------------------------------
     Net cash provided by investing activities        13,377,192      625,781
------------------------------------------------------------------------------
Cash flows from financing activities:
     Cash distributions                              (14,442,177)        -
     Increase in distributions payable to
       General Partners                                  133,638         -
------------------------------------------------------------------------------
     Net cash used in financing activities           (14,308,539)        -
------------------------------------------------------------------------------
(Decrease) increase in cash and cash equivalents        (687,095)     291,945
Cash and cash equivalents at beginning of period       2,225,631    1,531,647
------------------------------------------------------------------------------
Cash and cash equivalents at end of period            $1,538,536  $ 1,823,592
==============================================================================





                 See accompanying notes to financial statements.





<PAGE>


                DEAN WITTER REALTY INCOME PARTNERSHIP IV, L.P.

                          Notes to Financial Statements

1.   The Partnership

Dean Witter Realty Income Partnership IV, L.P. (the "Partnership") is a limited
partnership organized under the laws of the State of Delaware in 1986.

The Partnership's last remaining property investment was its 40.6% interest in
the partnership ("TPA") which owned Taxter Corporate Park. As discussed in Note
2, TPA sold the Taxter property on May 23, 2000, and this sale has effectuated
the dissolution of the Partnership. Accordingly, the Partnership is in the
process of winding up its affairs, and it plans to distribute the balance of the
Partnership's cash reserves and terminate by December 31, 2000. However, there
can be no assurance that the Partnership can be terminated by such date.

The Partnership's interest in TPA was accounted for using the equity method.

The Partnership's records are maintained on the accrual basis of accounting for
financial and tax reporting purposes.

Net income (loss) per Unit amounts are calculated by dividing net income (loss)
allocated to Limited Partners, in accordance with the Partnership Agreement, by
the weighted average number of Units outstanding.

In the opinion of management, the accompanying financial statements, which have
not been audited, include all adjustments, necessary to present fairly the
results for the interim period. Except for the gain on sale of the Taxter
property included in the equity in earnings of joint venture in the second
quarter of 2000, and the equity in earnings from the Chesterbrook joint venture
recognized in the third quarter of 1999, such adjustments consist only of normal
recurring accruals.

These financial statements should be read in conjunction with the annual
financial statements and notes thereto included in the Partnership's annual
report on Form 10-K filed with the Securities and Exchange Commission for the
year ended December 31, 1999. Operating results of interim periods may not be
indicative of the operating results for the entire year.

2. Investment in Joint Venture

Pursuant to a Purchase and Sale Agreement dated as of April 4, 2000, as amended,
on May 23, 2000, TPA sold the land and buildings which comprise the Taxter
property to a subsidiary of Mack-Cali Realty Corporation (the "Purchaser"), an
unaffiliated party, for a negotiated sale price of $42.725 million. In
connection with the sale, TPA acquired from an affiliate and conveyed to the
Purchaser certain interests in the Taxter property, including interests that the
affiliate had acquired from KLM Royal Dutch Airlines, for $6.75 million, in
February 1999. Of the $42.725 million, TPA remitted $6.75 million of the sale
proceeds to the affiliate in connection with the transaction.

TPA is also owned 44.6% by Dean Witter Realty Income Partnership III, L.P., an
affiliated public partnership, and 14.8% by Dean Witter Realty Income
Partnership II, L.P., an affiliated public partnership.

The purchase price was paid in cash at closing. At closing, the Partnership
received approximately $13.4 million representing its 40.6% share of the cash
received by TPA, net of its share of TPA's closing costs, the amount of the
obligation owed to the affiliate and other deductions.

On June 29, 2000, the Partnership distributed, to Limited Partners only, sale
proceeds of approximately $13.0 million ($42.74 per Unit). The Partnership
retained a portion of the sale proceeds to cover any contingencies that may
arise pursuant to the sale and, if required, pay administrative expenses and
liabilities that may arise while the Partnership winds up its affairs. Any sale
proceeds remaining, subsequent to the payment of any contingencies, will be
distributed to Limited Partners only.

The Partnership's share of TPA's gain on sale of the Taxter property was
approximately $5.0 million; such gain was allocated 100% to the Limited
Partners.


<PAGE>



                DEAN WITTER REALTY INCOME PARTNERSHIP IV, L.P.

                          Notes to Financial Statements


Summarized Statements of Operations of TPA are as follows:

                               Three months ended         Nine months ended
                                 September 30,               September 30,
                                2000       1999           2000         1999
-------------------------------------------------------------------------------
Operating income              $   1,640  $1,473,526   $ 2,129,283  $4,290,842
Gain on sale of real
   estate                          -           -       16,119,499        -
-------------------------------------------------------------------------------
                                  1,640   1,473,526    18,248,782   4,290,842
-------------------------------------------------------------------------------
Expenses                         33,185   1,402,881     1,430,546   3,646,080
-------------------------------------------------------------------------------
Net (loss) income             $(31,545)  $   70,645   $16,818,236  $  644,762
==============================================================================


On April 1, 2000, TPA reclassified its investment in the Taxter property as real
estate held for sale. Accordingly, since that date, TPA has not recorded
depreciation expense on the buildings and related improvements.




<PAGE>



                DEAN WITTER REALTY INCOME PARTNERSHIP IV, L.P.

                          Notes to Financial Statements

3.    Cash Reserve Distributions

On June 29, 2000, the Partnership also distributed to Limited Partners only,
undistributed sale proceeds of approximately $95,000 ($0.31 per Unit) from the
1998 sale of Chesterbrook Corporate Center and cash reserves of approximately
$3.95 per Unit. The cash reserves distribution totaled $1,336,379 with
$1,202,741 distributed to the Limited Partners and $133,638 payable to the
General Partners. The General Partners deferred receipt of their share of the
distribution to ensure that the Partnership would have cash on hand to cover all
liabilities that may arise while the Partnership winds up its affairs. The
amounts deferred were charged against General Partners' capital and recorded as
distributions payable.

On June 29, 2000, the Partnership's distributions of the Taxter sale proceeds
(see Note 2), Chesterbrook sale proceeds and Partnership cash reserves to
Limited Partners totaled $14,308,539 ($47.00 per Unit).

4.   Related Party Transactions

An affiliate of the Managing General Partner performs administrative functions,
processes investor transactions and prepares tax information for the
Partnership. For the nine-month periods ended September 30, 2000 and 1999, the
Partnership incurred approximately $54,000 and $56,000 for these services,
respectively. These amounts are included in general and administrative expenses.


Item 2.  Management's Discussion and Analysis of Financial
         Condition and Results of Operations

Liquidity and Capital Resources

The Partnership's interest in the Taxter Corporate Park office property (the
"Property") was the Partnership's sole remaining property interest. As discussed
in Note 2 to the financial statements, the partnership ("TPA") which owned the
Property sold the Property on May 23, 2000. The Property was approximately 90%
leased at the time of the sale. The favorable leasing status and an improved
real estate market in Westchester, New York, the location of the Property,
enabled TPA to obtain an attractive price for the Property.

The Partnership Agreement provides that the Partnership shall terminate upon the
sale of the Partnership's last investment, and that dissolution shall be
effective on the day on which the event arises giving rise to the dissolution.
Accordingly, the Partnership dissolved pursuant to the terms of its Partnership
Agreement, effective May 23, 2000, the date on which the Property was sold. By
December 31, 2000, the Partnership plans to wind up its affairs, distribute its
remaining cash reserves and terminate its existence by filing a certificate of
cancellation in the office of the Delaware Secretary of State. There can be no
assurance that the Partnership will terminate by December 31, 2000.

As discussed in Notes 2 and 3 to the financial statements, on June 29, 2000, the
Partnership paid distributions of sale proceeds and Partnership cash reserves to
Limited Partners totaling $47.00 per Unit. To cover any contingencies that may
arise while the Partnership winds up its affairs, the Partnership retained a
portion of the Property sale proceeds, and the General Partners deferred receipt
of their share of the distribution of Partnership cash reserves.


As of the date of closing of the sale of the Property, the Partnership had
commitments to fund approximately $750,000 for its share of tenant improvements
and leasing commissions at the Property. This amount was deducted from the
Partnership's share of the sale proceeds it received at closing.

During the period the Partnership owned its interest in the Property in 2000,
the Property generated positive cash flows from operations.

During the nine months ended September 30, 2000, the Partnership's contributions
to TPA (to fund its share of tenant improvements and leasing commissions at the
Property) and cash reserve distributions exceeded the distributions received
from TPA (excluding the distribution of sale proceeds) and cash provided by
Partnership operations. This cash shortfall was funded with Partnership cash
reserves.

Except as discussed above and in the financial statements, the Managing General
Partner is not aware of any trends or events, commitments or uncertainties that
may have a material impact on liquidity.

Operations

Fluctuations in the Partnership's operating results for the three and nine-month
periods ended September 30, 2000 compared to 1999 are primarily attributable to
the following:

The increase in equity in earnings of joint venture during the nine months ended
September 30, 2000 is primarily due to the Partnership's share of the gain on
sale of the Property (approximately $5.0 million).

The decrease in equity in earnings of joint venture during the three months
ended September 30, 2000 is primarily due to: a) the absence of 1999 income of
approximately $146,000 from the Chesterbrook joint venture and b) the loss of
operating income caused by the sale of the Taxter property in May 2000.

The increase in interest and other income during the nine months ended September
30, 2000 is primarily due to the interest earned on the Taxter sale proceeds
until such proceeds were distributed to Limited Partners.

There were no other individually significant factors which caused changes in
revenues or expenses.

Inflation

Inflation has been consistently low during the periods presented in the
financial statements and, as a result, has not had a significant effect on the
operations of the Partnership or its property interests.


<PAGE>



                 DEAN WITTER REALTY INCOME PARTNERSHIP IV, L.P.



PART II - OTHER INFORMATION

Item 6.  Exhibits and Reports on Form 8-K.

         a)   Exhibits.
              An exhibit index has been filed as part of this Report on Page E1.

         b)    Reports on Form 8-K.
               None.



<PAGE>


                DEAN WITTER REALTY INCOME PARTNERSHIP IV, L.P.


                            SIGNATURES

Pursuant to the requirements 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.

                                DEAN WITTER REALTY INCOME PARTNERSHIP IV, L.P.

                           By:  Dean Witter Realty Fourth Income Properties Inc.
                                Managing General Partner

Date:  June 14, 2001       By:  /s/ E. Davisson Hardman, Jr.
                                --------------------------------
                                 E. Davisson Hardman, Jr.
                                 President

Date:  June 14, 2001       By:   /S/ Raymond E. Koch
                                --------------------------------
                               Raymond E.Koch
                               Principal Accounting Officer