REVENUE MEMORANDUM ORDER NO. 13-2011 issued on March 17, 2011 amends certain provision of Revenue Memorandum Order (RMO) No. 6-2010 relative to the stamping of Income Tax Returns and the attached audited Financial Statements, and the number of copies of tax returns to be submitted and filed. Policy and guideline no. 1 of RMO 6-2010 was amended to read as follows: “1. All concerned Offices, including AABs, shall receive the income tax returns by stamping the official receiving seal or stamp of receipt of an internal revenue office where the said returns are filed on the space provided for in the three (3) copies of the returns. In the case of corporations and other juridical persons, there should be stamped “RECEIVED” in at least two (2) extra copies of the audited financial statements for filing with the Securities and Exchange Commission.”