REVENUE REGULATIONS NO. 19-2011 issued on December 9, 2011 prescribes the new Income Tax forms that will be used for Income Tax filing covering and starting with Calendar Year 2011, modifying Revenue Memorandum Circular No. 57-2011. All taxpayers required to file their Income Tax Returns under Section 51(A)(1) of the Tax Code, and those not required to file under Section 51(A)(2) but who nevertheless opt to do so, covering and starting with calendar year 2011 – due for filing on or before April 15, 2012, should use the following revised forms: a. BIR Form 1700 version November 2011 (Annual Income Tax Return for Individuals Earning Purely Compensation); b. BIR Form 1701 version November 2011 (Annual Income Tax Return for Self-Employed Individuals, Estates and Trusts); and c. BIR Form 1702 version November 2011 (Annual Income Tax Return for Corporations, Partnerships and other Non-Individual Taxpayers). All juridical entities following fiscal year of reporting are likewise required to use the new BIR Form 1702 starting with those covered under the fiscal year ending January 31, 2012. These Regulations shall take effect covering income earned for taxable year 2011.