Form 5074 IF, at the end of the tax year, you were a resident of..... THEN file that jurisdiction's tax return with the..... The United States Internal Revenue Service Center Austin, TX 73301 USA Guam Department of Revenue and Taxation Government of Guam P.O. Box 23607 GMF, GU 96921(GUAM) Commonwealth of the Northern Mariana Islands Division of Revenue and Taxation Commonwealth of the Northern Mariana Islands P.O. Box 5234, CHRB Saipan, MP 96950