Use Form 1127 to request an extension of time under Internal Revenue Code section 6161 for payment of the following amounts: The tax shown or required to be shown on a return. An amount determined as a deficiency (an amount you owe after an examination of your return). The conditions under which extensions may be granted under Section 6161 of the Internal Revenue Code are printed on the reverse of the application. Current Revision Form 1127 PDF Recent Developments None at this time. Other Items You May Find Useful All Form 1127 Revisions Other Current Products Related About Form 2350, Application for Extension of Time to File U.S. Income Tax Return About Form 4768, Application for Extension of Time To File a Return and/or Pay U.S. Estate (and Generation-Skipping Transfer) Taxes About Form 4868, Application for Automatic Extension of Time to File U.S. Individual Income Tax Return About Form 9465, Installment Agreement Request