If you are a federal employee planning for retirement, this FERS calculator gives you a practical estimate of your pension. Enter your high-3 salary, creditable service, retirement age, and election choices to estimate annual and monthly income.
FERS Pension Estimator
Optional TSP Income Estimate
How the FERS calculator works
The Federal Employees Retirement System pension is primarily based on your high-3 average salary, years of creditable service, and the multiplier that applies to your retirement situation.
- Regular FERS: 1.0% × high-3 × years of service
- Enhanced regular FERS: 1.1% × high-3 × years if you retire at age 62+ with at least 20 years
- Special category: 1.7% for the first 20 years, plus 1.0% for years over 20
Inputs explained
1) High-3 salary
This is the highest average basic pay over any 36 consecutive months. It usually occurs near the end of your career, but not always. Overtime and bonuses may not count the same way as base pay.
2) Creditable service
Include eligible civilian and military time that counts toward your FERS annuity calculation. This calculator allows years, extra months, and sick leave months to help you approximate total service credit.
3) Retirement age
Age can affect your multiplier and whether reductions apply. If you are using an MRA+10 scenario, check the box to apply the age reduction estimate.
4) Survivor election
Choosing a survivor benefit can reduce your annuity while you are alive, but it can protect a spouse after your death. This tool applies a simplified reduction (0%, 5%, or 10%).
FERS eligibility quick guide
- Immediate retirement: MRA with 30 years, age 60 with 20 years, or age 62 with 5 years
- MRA+10: MRA with at least 10 years (can be reduced for being under age 62)
- Deferred or postponed options may change reduction impact and benefit start date
Example scenarios
Example A: Traditional retirement
High-3 of $120,000, age 62, 25 years of service. Multiplier is 1.1%, so estimated gross pension is roughly $33,000 per year before survivor/tax adjustments.
Example B: Early MRA+10 retirement
High-3 of $95,000, age 57, 15 years of service. Base annuity may look decent at first glance, but the age reduction can materially lower lifetime income if benefits begin immediately.
How to increase your FERS retirement income
- Increase your high-3 by improving grade/step late in career
- Add service time when possible (even a year can matter)
- Consider delaying retirement to reduce or avoid penalties
- Coordinate pension strategy with TSP withdrawals and Social Security timing
- Review survivor options carefully with your spouse
Common mistakes to avoid
- Using current salary instead of true high-3 average
- Ignoring reductions for early retirement scenarios
- Forgetting that taxes and insurance premiums reduce take-home income
- Assuming a pension alone will replace pre-retirement spending
Final note
This federal retirement calculator for FERS is designed to give you a fast planning estimate. Before filing paperwork, verify service history and official projections with your agency HR office and OPM resources. Accurate retirement decisions are best made with both official numbers and a full household income plan.