[ BIR REVENUE MEMORANDUM CIRCULAR NO. 27-2013, March 15, 2013 ]
GUIDELINES IN THE FILING, RECEIVING AND PROCESSING OF TAXABLE YEAR 2012 INCOME TAX RETURNS (ITRs) AND PRESCRIBING ADDITIONAL ATTACHMENT OF THE REGULAR ALLOWABLE ITEMIZED DEDUCTIONS TO BIR FORM NOVEMBER 2011 ENCS VERSIONS
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