| **INVESTMENTS IN OPERATING PARTNERSHIPS**                   | 6 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                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| **Equity Method Investments and Joint Ventures [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 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| Equity Method Investments [Text Block]                      | NOTE D - INVESTMENTS IN OPERATING PARTNERSHIPSAt September 30, 2011 and 2010, the Partnership had limited partnership interests in 13 and 19 Operating Partnerships, respectively, which own operating apartment complexes as follows:Series 2011  2010 1  1   4 2  1   1 3  7   10 4  3   3 5  1   1 6  -   -    13   19 Under the terms of the Partnership’s investment in each Operating Partnership, the Partnership was required to make capital contributions to the Operating Partnerships. These contributions were payable in installments over several years upon each Operating Partnership achieving specified levels of construction and/or operations. At September 30, 2011 and 2010, all capital contributions had been paid.During the six months ended September 30, 2011 the Partnership disposed of five Operating Partnerships. A summary of the dispositions by Series for September 30, 2011 is as follows:  OperatingPartnershipInterestTransferred  Sale ofUnderlyingOperatingPartnership  PartnershipProceeds fromDisposition  Gain/(Loss)onDisposition Series 1  3   -  $-  $- Series 2  -   -   -   - Series 3  2   -   -   - Series 4  -   -   -   - Series 5  -   -   -   - Series 6  -   -   -   - Total  5   -  $-  $- During the six months ended September 30, 2010 the Partnership did not dispose of any of the Operating Partnerships, but did receive additional proceeds from one Operating Partnership disposed of in the prior year. A summary of the dispositions by Series for September 30, 2010 is as follows:  OperatingPartnershipInterestTransferred  Sale ofUnderlyingOperatingPartnership  PartnershipProceeds fromDisposition  Gain/(Loss)onDisposition Series 1  -   -  $-  $- Series 2  -   -   -   - Series 3  -   -   -   - Series 4  -   -   7,183   7,183 Series 5  -   -   -   - Series 6  -   -   -   - Total  -   -  $7,183  $7,183 The gain (loss) described above is for financial statement purposes only. There are significant differences between the equity method of accounting and the tax reporting of income and losses from Operating Partnership investments. The largest difference is the ability, for tax purposes, to deduct losses in excess of the Partnership’s investment in the Operating Partnership. As a result, the amount of gain recognized for tax purposes may be significantly higher than the gain recorded in the financial statements.The Partnership’s fiscal year ends March 31st of each year, while all the Operating Partnerships’ fiscal years are the calendar year. Pursuant to the provisions of each Operating Partnership Agreement, financial results for each of the Operating Partnerships are provided to the Partnership within 45 days after the close of each Operating Partnership’s quarterly period. Accordingly, the current financial results available for the Operating Partnerships are for the six months ended June 30, 2011.The combined condensed unaudited summarized statements of operations of the Operating Partnerships for the six months ended June 30, 2011 and 2010 are as follows:COMBINED CONDENSED SUMMARIZED STATEMENTS OF OPERATIONSSix Months ended June 30,(Unaudited)  2011  2010        Revenues      Rental $1,917,273  $2,038,679 Interest and other  112,559   74,087             2,029,832   2,112,766          Expenses        Interest  483,149   505,585 Depreciation and amortization  464,775   557,428 Operating expenses  1,602,694   1,624,795    2,550,618   2,687,808          NET LOSS $(520,786) $(575,042)         Net loss allocated to Boston Capital Tax Credit Fund Limited Partnership * $(515,577) $(569,291)         Net loss allocated to other Partners $(5,209) $(5,751)* Amounts include $515,577 and $569,291 for 2011 and 2010, respectively, of loss not recognized under the equity method of accounting.The Partnership accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Partnership adjusts its investment cost for its share of each Operating Partnership’s results of operations and for any distributions received or accrued. However, the Partnership recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.COMBINED CONDENSED SUMMARIZED STATEMENTS OF OPERATIONSSix Months ended June 30,(Unaudited)Series1  2011  2010        Revenues      Rental $249,303  $374,381 Interest and other  8,802   13,678             258,105   388,059          Expenses        Interest  33,384   48,652 Depreciation and amortization  71,856   116,443 Operating expenses  222,791   288,171    328,031   453,266          NET LOSS $(69,926) $(65,207)         Net loss allocated to Boston Capital Tax Credit Fund Limited Partnership * $(69,227) $(64,555)         Net loss allocated to other Partners $(699) $(652)* Amounts include $69,227 and $64,555 for 2011 and 2010, respectively, of loss not recognized under the equity method of accounting.The Partnership accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Partnership adjusts its investment cost for its share of each Operating Partnership’s results of operations and for any distributions received or accrued. However, the Partnership recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.COMBINED CONDENSED SUMMARIZED STATEMENTS OF OPERATIONSSix Months ended June 30,(Unaudited)Series2  2011  2010        Revenues      Rental $412,218  $345,823 Interest and other  45,016   16,424             457,234   362,247          Expenses        Interest  186,044   178,593 Depreciation and amortization  82,936   82,936 Operating expenses  357,539   322,154    626,519   583,683          NET LOSS $(169,285) $(221,436)         Net loss allocated to Boston Capital Tax Credit Fund Limited Partnership * $(167,592) $(219,222)         Net loss allocated to other Partners $(1,693) $(2,214)* Amounts include $167,592 and $219,222 for 2011 and 2010, respectively, of loss not recognized under the equity method of accounting.The Partnership accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Partnership adjusts its investment cost for its share of each Operating Partnership’s results of operations and for any distributions received or accrued. However, the Partnership recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.COMBINED CONDENSED SUMMARIZED STATEMENTS OF OPERATIONSSix Months ended June 30,(Unaudited) Series3  2011  2010        Revenues      Rental $735,635  $841,523 Interest and other  19,093   24,194             754,728   865,717          Expenses        Interest  92,036   109,114 Depreciation and amortization  177,919   210,282 Operating expenses  621,624   668,500    891,579   987,896          NET LOSS $(136,851) $(122,179)         Net loss allocated to Boston Capital Tax Credit Fund Limited Partnership * $(135,482) $(120,957)         Net loss allocated to other partners $(1,369) $(1,222)* Amounts include $135,482 and $120,957 for 2011 and 2010, respectively, of loss not recognized under the equity method of accounting.The Partnership accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Partnership adjusts its investment cost for its share of each Operating Partnership’s results of operations and for any distributions received or accrued. However, the Partnership recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.COMBINED CONDENSED SUMMARIZED STATEMENTS OF OPERATIONSSix Months ended June 30,(Unaudited)Series4  2011  2010        Revenues      Rental $290,850  $284,612 Interest and other  14,611   10,656             305,461   295,268          Expenses        Interest  68,211   69,896 Depreciation and amortization  85,937   101,640 Operating expenses  201,884   166,794    356,032   338,330          NET LOSS $(50,571) $(43,062)         Net income loss allocated to Boston Capital Tax Credit Fund Limited Partnership * $(50,065) $(42,631)         Net loss allocated to other Partners $(506) $(431)* Amounts include $50,065 and $42,631 for 2011 and 2010, respectively, of loss not recognized under the equity method of accounting.The Partnership accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Partnership adjusts its investment cost for its share of each Operating Partnership’s results of operations and for any distributions received or accrued. However, the Partnership recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.COMBINED CONDENSED SUMMARIZED STATEMENTS OF OPERATIONSSix Months ended June 30,(Unaudited)Series5  2011  2010        Revenues      Rental $229,267  $192,340 Interest and other  25,037   9,135             254,304   201,475          Expenses        Interest  103,474   99,330 Depreciation and amortization  46,127   46,127 Operating expenses  198,856   179,176    348,457   324,633          NET LOSS $(94,153) $(123,158)         Net loss allocated to Boston Capital Tax Credit Fund Limited Partnership * $(93,211) $(121,926)         Net loss allocated to other Partners $(942) $(1,232)* Amounts include $93,211 and $121,926 for 2011 and 2010, respectively, of loss not recognized under the equity method of accounting.The Partnership accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Partnership adjusts its investment cost for its share of each Operating Partnership’s results of operations and for any distributions received or accrued. However, the Partnership recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income.COMBINED CONDENSED SUMMARIZED STATEMENTS OF OPERATIONSSix Months ended June 30,(Unaudited)Series 6  2011  2010        Revenues      Rental $-  $- Interest and other  -   -             -   -          Expenses        Interest  -   - Depreciation and amortization  -   - Operating expenses  -   -    -   -          NET LOSS $-  $-          Net loss allocated to Boston Capital Tax Credit Fund Limited Partnership * $-  $-          Net loss allocated to other Partners $-  $- *Amounts include $0, for both 2011 and 2010, of loss not recognized under the equity method of accounting.The Partnership accounts for its investments using the equity method of accounting. Under the equity method of accounting, the Partnership adjusts its investment cost for its share of each Operating Partnership’s results of operations and for any distributions received or accrued. However, the Partnership recognizes individual operating losses only to the extent of capital contributions. Excess losses are suspended for use in future years to offset excess income. |

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| - Definition
The entire disclosure for equity investment, or group of investments, for which combined disclosure is appropriate, including: (a) the name of each investee and percentage of ownership of common stock, (b) accounting policies for investments in common stock, (c) difference between the amount at which the investment is carried and the amount of underlying equity in net assets and the accounting treatment of the difference, (d) the total fair value of each identified investment for which a market value is available, (e) summarized information as to assets, liabilities, and results of operations of the investees (for investments in unconsolidated subsidiaries, common stock of joint ventures, or other investments using the equity method), and (f) material effects of possible conversions, exercises, or contingent issuances of the investee. Other disclosures include (a) the names of any investee in which the investor owns 20 percent or more of the voting stock and investment is not accounted for using the equity method, and the reasons why not, and (b) the names of any investee in which the investor owns less than 20 percent of the voting stock and the investment is accounted for using the equity method, and the reasons why it is.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 32 -URI http://asc.fasb.org/extlink&oid=6903645&loc=d3e32787-111569Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Principles Board Opinion (APB) -Number 18 -Paragraph 20 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.  This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 35 -Paragraph 35 -URI http://asc.fasb.org/extlink&oid=6903645&loc=d3e32847-111569
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