Reference

What Drives Your Retirement Number?

Twelve factors that actually move your federal retirement income — some you lock in years in advance, some you choose the day you retire.

1
Your High-3 average salary

Every dollar your High-3 rises adds directly to your pension for life. It's the highest 36 consecutive months of basic pay — not necessarily your last three years.

Calculate your High-3
2
Years of service

Each year of creditable service is worth 1.0% (or 1.7% for special-category employees under 20 years) of your High-3, permanently. Sick leave adds credit too.

See your pension by years of service
3
The 1.1% multiplier threshold

Retiring at 62+ with 20+ years permanently bumps your multiplier from 1.0% to 1.1% — a 10% increase to your entire pension, for the rest of your life.

Compare 1.0% vs. 1.1%
4
Special category status

LEO, firefighter, ATC, and CBPO employees earn pension credit nearly twice as fast for their first 20 years — but face mandatory retirement ages as early as 56.

Check your MRA
5
The survivor benefit election

Electing a 50% survivor benefit costs about 10% of your monthly pension, for life — one of the largest and most irreversible choices in your retirement paperwork.

Model your survivor election
6
The FERS Supplement — and its cliff at 62

If you qualify, the Supplement can meaningfully boost your income before 62 — then disappears entirely and permanently the month you turn 62.

Estimate your Supplement
7
Your Social Security claiming age

Claiming at 62 instead of 70 can mean hundreds fewer dollars per month, permanently. The right age depends on your health, other income, and how long you expect to live.

Estimate your Social Security benefit
8
TSP allocation and contribution rate

Contributing below 5% leaves free agency match money on the table. Your allocation (conservative to aggressive) drives most of the variance in your projected balance.

Optimize your TSP contribution
9
FEHB continuation

Health insurance is often the largest fixed cost in retirement. Missing the 5-year continuous enrollment rule means losing access to FEHB in retirement entirely.

Check your FEHB eligibility
10
Military service buyback

Buying back active-duty military time for a deposit (roughly 3% of military basic pay plus interest) can permanently add years of pension credit for a one-time cost.

Calculate your buyback cost
11
State of residence

The same retirement income can net thousands of dollars more per year in a no-tax state than a high-tax one — one of the most controllable levers in retirement.

Compare states
12
The FERS Supplement earnings test

If you work after retiring early, earning above the annual limit reduces your Supplement by $1 for every $2 over — a detail that surprises many early retirees who plan to work part-time.

Check the earnings limit