FERS Annuity Calculator - Federal Employee Retirement Calculator
Free FERS annuity calculator & federal employee retirement calculator. Calculate FERS pension, special retirement supplement, high-3 salary benefits & lifetime value. Our calculator uses OPM formulas to estimate your Federal Employees Retirement System annuity based on years of service, high-3 average salary, and retirement age.
Last updated: January 10, 2025
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Include all federal service time
Average of highest 3 consecutive years of basic pay
Your age when you plan to retire
Available if retiring before age 62 with 30+ years
Results
$2,750.00
$33,000 annually
Replacement Rate
33.0%
Lifetime Value
$0.76M
$33,000
Includes annuity
Important Notes
- • FERS annuity is based on 1.1% per year of service
- • COLA adjustments begin at age 62 for regular retirees
- • Subject to federal income tax and possibly state tax
- • Does not include TSP distributions or Social Security
FERS Retirement Calculator Features & Types
Formula
1% or 1.1% × Years × High-3
Core FERS pension calculation based on creditable service
Average period
36 Consecutive Months
Critical factor in FERS annuity calculation
Eligibility
30+ Years, Before 62
Temporary benefit approximating Social Security
Components
FERS + TSP + SS
Three-tier retirement system analysis
Standard
OPM Certified
Based on official government retirement formulas
Options
Immediate, Early, Deferred
Analyze different retirement timing scenarios
Quick Example Result
30 years of service, $100,000 high-3 salary, retiring at age 62:
Monthly
$2,750
Annual
$33,000
Replacement
33%
Lifetime
$0.76M
How Our FERS Annuity Calculator Works
Our FERS annuity calculator uses the official Office of Personnel Management (OPM) formula to estimate your federal retirement benefits. The calculation multiplies your creditable years of service by your high-3 average salary and the applicable percentage multiplier, providing accurate projections of your monthly and annual FERS pension payments.
FERS Annuity Calculation Formula
The enhanced 1.1% multiplier provides a 10% higher annuity for eligible retirees. This incentivizes federal employees to work longer and retire at full retirement age. The high-3 salary is your average basic pay during any 3 consecutive years of service, typically your final three years.
Visualization of FERS three-tier retirement system components
FERS Special Retirement Supplement
The Special Retirement Supplement (SRS) is a unique FERS benefit that bridges the gap between retirement and Social Security eligibility at age 62. It approximates the Social Security benefit earned during your federal service years. To qualify, you must retire under immediate retirement provisions before age 62 with at least 30 years of service, or at your Minimum Retirement Age with 30 years.
- SRS calculation: (Estimated SS benefit × Years of Federal Service) ÷ 40
- Paid monthly from retirement date until age 62
- Subject to earnings test (similar to Social Security)
- Taxable income, reported on Form 1099-R
- Not available for deferred retirement or MRA+10 retirement
- Ends automatically when you turn 62, regardless of SS claiming decision
Sources & References
- U.S. Office of Personnel Management (OPM) - FERS InformationOfficial source for FERS annuity calculations and retirement rules
- 5 U.S.C. Chapter 84 - Federal Employees' Retirement SystemLegal foundation for FERS benefits and calculations
- OPM FERS Handbook - Comprehensive Guide to FERS BenefitsDetailed explanation of FERS annuity, supplement, and survivor benefits
Planning comprehensive retirement? Check out our retirement calculator and 401k loan calculator.
Get Custom Calculator for Your PlatformFERS Annuity Calculator Examples
Employee Profile:
- Years of Service: 30 years
- High-3 Salary: $100,000
- Retirement Age: 62
- Retirement Type: Regular
- Multiplier: 1.1% (age 62+ with 20+ years)
Calculation Steps:
- Apply enhanced formula: 1.1% (age 62+ with 20+ years)
- Calculate: $100,000 × 30 × 1.1% = $33,000
- Annual annuity: $33,000
- Monthly annuity: $33,000 ÷ 12 = $2,750
- Replacement rate: $33,000 ÷ $100,000 = 33%
Result: $2,750/month ($33,000/year) FERS annuity
33% salary replacement from pension alone. Add Social Security (~35%) and TSP for complete retirement income.
Early Retirement Example
25 years, $80,000 high-3, age 60
$20,000/year (1% × 25 × $80,000)
With Supplement Example
30 years, age 56 (MRA+30)
Plus ~$1,500/mo until age 62
Frequently Asked Questions
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