File Form 4466 at the applicable address listed below. Filers of... With total assets at the end of the tax year of... Use the following address: Forms 990-T, 1120, 1120-C, 1120-H, 1120-L, 1120-ND, 1120-REIT, 1120-RIC, 1120-PC, or 1120-SF Any amount Department of the Treasury Internal Revenue Service Center Ogden, UT 84201 Form 1120-F or 1120-FSC, or the corporation’s principal business, office, or agency is located in a foreign country or U.S. possession Any amount Internal Revenue Service Center P.O. Box 409101 Ogden, UT 8440