Taxable Net Loss (Details) (USD $)	12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Reconcilation Of Net Loss To Income Tax Loss [Abstract]
Net Income Loss Attributable To Independence Tax Credit Plus L.P. IV	$ (1,996,991)	$ (2,009,551)	[1]
Differences between depreciation and amortization expense records for financial reporting purposes and income tax purposes	(928,776)	(1,364,511)
Differences resulting from Partnership having a different fiscal year for tax and financial reporting purposes	(10,639)	(27,905)
Tax exempt interest income	(19)	(17)
Differences between gain on sale of property for financial reporting purposes and gain on sale for income tax purposes	(1,362,973)	(5,015,229)
Provision for loss on impairment	2,406,000	5,332,554
Other, including accruals for financial reporting purposes not deductible for tax purposes until paid	(357,905)	1,492,196
Net loss per income tax return	(2,251,303)	(1,592,463)
The tax basis net assets exceeded the financial statement net assets	$ 20,443,000

[1] * Reclassified for comparative purposes.