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.
Here are some basic guidelines: 1  For single dependents who are under the age of 65 and not blind, you generally must file a federal income tax return if your unearned income (such as from dividends or interest) was more than $1,050 or if your earned income (such as from wages or salary) was more than $6,300.