Military Retirement Date Calculator
Enter your birth date and your date of entry into service to get your 20-year active-duty retirement date and your reserve retired-pay date at age 60. Dates per the Department of Defense's published eligibility rules.
How it's calculated
20-year date: entry date + 20 years — the standard active-duty retirement point. Reserve retired pay: your 60th birthday, after 20 qualifying years of reserve service.
Dates only — no retired-pay amounts. Learn the method step by step.
Examples
- Entered service 1 July 2010: 20-year date 1 July 2030 (Monday).
- Born 15 March 1985 (reserve): retired pay from 15 March 2045 (Wednesday).
What this tool does not cover
- Retirement systems: High-36, the Blended Retirement System and REDUX change how retired pay is computed — but the 20-year eligibility date itself is the same. This site computes dates only, so the system you’re under doesn’t change your answer here.
- Reserve details: reserve retired pay normally starts at 60, but certain active-duty periods after 2008 can move it earlier. If that applies to you, DFAS can give the exact date.
- Medical and other early retirements follow their own rules and aren’t covered.
Related tools
- FERS Retirement Date Calculator
- USPS Retirement Date Calculator
- Retirement Date Calculator by Years of Service
Related guides
Source: Defense Finance and Accounting Service, U.S. Department of Defense — retired military eligibility
Frequently asked questions
Is 20 years really the magic number?
For active-duty retirement with an immediate annuity, yes — 20 years of creditable service is the standard threshold across the branches. (Temporary early-retirement authorities have existed in drawdown eras, but 20 is the standing rule.)
Does the Blended Retirement System change my date?
No — BRS changes the pay formula and adds TSP matching, but the 20-year eligibility date is unchanged. Since this site computes dates, not pay, your answer is the same either way.
I'm in the Guard/Reserve. Which date is mine?
The reserve retired-pay date: age 60 after 20 qualifying years. Note that qualifying years for reservists are measured in retirement points, and certain mobilizations can pull the pay date earlier than 60.
What counts as my entry date?
Your date of entry onto active duty (or into the component whose clock you're measuring). Academy and ROTC time have their own crediting quirks — use the date your service counts from.
What about medical retirement?
Disability retirements follow entirely different rules and timelines. This tool only covers the standard length-of-service dates — talk to your service's personnel office for medical cases.