Note: TRICARE Extra is not available overseas. TRICARE Retiree Dental Program The TRICARE Retiree Dental Program (TRDP) offers comprehensive, cost-effective dental coverage to you and your family. Enrollment is voluntary, and premiums are required. For details, visit www.trdp.org.
Download article as a PDF. You must file a federal income tax return if you are a citizen or resident of the United States or a resident of Puerto Rico and you meet the filing requirements discussed below. (Note: The filing requirements discussed below are for typical individual income earners.
How to file an amended return. The most important thing to know about filing an amended return is that you should not start over and file Form 1040 and all the attached forms again. You only file your complete tax return once. After that, you file Form 1040X â Amended U.S. Individual Income Tax Return and change only the items that are incorrect. If the incorrect items are entered on other forms or schedules, you attach the corrected forms or schedules to Form 1040X. Do not attach copies of forms or schedules that do not change.