15-Year Pension Calculator
Pre-filled with 15 years of service — adjust salary, multiplier, and options to match your plan.
What 15 Years of Service Pays at Different Salaries
| Final Avg Salary | 1.0% Multiplier | 1.5% Multiplier | 2.0% Multiplier | 2.5% Multiplier |
|---|---|---|---|---|
| $40K | $500/mo | $750/mo | $1,000/mo | $1,250/mo |
| $50K | $625/mo | $937/mo | $1,250/mo | $1,563/mo |
| $60K | $750/mo | $1,125/mo | $1,500/mo | $1,875/mo |
| $70K | $875/mo | $1,312/mo | $1,750/mo | $2,188/mo |
| $80K | $1,000/mo | $1,500/mo | $2,000/mo | $2,500/mo |
| $90K | $1,125/mo | $1,687/mo | $2,250/mo | $2,813/mo |
| $100K | $1,250/mo | $1,875/mo | $2,500/mo | $3,125/mo |
★ Near median public-sector final salary (BLS NCS). Formula: Years × Multiplier% × Final Avg Salary ÷ 12. Figures are pre-tax estimates.
How COLA Affects Your 15-Year Pension Over Time
Base monthly benefit: $1,162 at retirement. COLA compounds annually. Most public plans cap COLA at 2–3%. Federal FERS is 2.5% for 2026.
| Year in Retirement | No COLA | 1% COLA | 2% COLA | 2.5% COLA | 3% COLA |
|---|---|---|---|---|---|
| Year 1 | $1,162/mo | $1,162/mo | $1,162/mo | $1,162/mo | $1,162/mo |
| Year 5 | $1,162/mo | $1,210/mo | $1,258/mo | $1,283/mo | $1,308/mo |
| Year 10 | $1,162/mo | $1,271/mo | $1,389/mo | $1,452/mo | $1,517/mo |
| Year 15 | $1,162/mo | $1,336/mo | $1,534/mo | $1,643/mo | $1,758/mo |
| Year 20 | $1,162/mo | $1,404/mo | $1,694/mo | $1,858/mo | $2,038/mo |
Figures assume no additional service accrual. Federal FERS 2026 COLA: 2.5%. Most state plans cap at 2–3%.
What 15 Years Earns Across Major Pension Plans
| Plan Type | Multiplier | Final Salary | Monthly Benefit | Income Replacement | Note |
|---|---|---|---|---|---|
| FERS (Federal) | 1% | $70K | $875/mo | 15% | Supplement expected before age 62 |
| CSRS (Federal, legacy) | 2% | $70K | $1,750/mo | 30% | Higher rate, no SS contribution |
| Typical State Plan | 1.67% | $70K | $1,461/mo | 25% | 1.5–2.0% range average |
| Teacher (TRS avg) | 2.1% | $70K | $1,838/mo | 32% | 2.0–2.2% range, varies by state |
Multipliers vary by plan design. Always verify your plan's Summary Plan Description (SPD) for the exact figure.
What 15 Years of Defined Benefit Service Means
At 15 years, you've reached a meaningful inflection point in most public pension systems. While 15 years rarely represents a full retirement benefit, it unlocks options that weren't available at 10: many state plans allow reduced early retirement at age 55 with 15 years of service.
The income replacement picture at 15 years typically falls between 22–37% depending on your multiplier. That's a useful supplement, but most employees need to pair this with Social Security eligibility and personal savings to reach a comfortable retirement.
For federal employees under FERS, 15 years is significant because it means you're at least halfway to the full 30-year benefit threshold — and the formula grows linearly, so each additional year adds the same dollar amount.
Survivor benefit decisions made at this stage matter. If you're married and considering early retirement, the cost of joint-life payout options is worth modeling now rather than at the last minute.
Income Replacement at a Glance
Monthly income comparison at 15 years, $62K salary, 1.5% multiplier.
Social Security average: $1,800/mo (SSA 2026). Combined pension + SS: $2,963/mo. Pension alone: 22% replacement.
Explore Other Service Lengths
Frequently Asked Questions: 15-Year Pension
With 15 years of service at a 1.5% multiplier and $62,000 final average salary, the formula yields approximately $1,162/month. At 1.0% (FERS standard), that's $775/month; at 2.0%, it's $1,550/month.
Many plans allow reduced early retirement at 55 with 15+ years.
Monthly Benefit = (15 × Multiplier% × Final Avg Salary) ÷ 12. Example: (15 × 1.5% × $62,000) ÷ 12 = $1,162/month.
At 2.5% annual COLA (2026 FERS rate), a $1,162 monthly benefit grows to approximately $1,905/month after 20 years in retirement.
It depends on whether your employer withheld Social Security taxes. FERS employees pay Social Security taxes and can collect both. CSRS and many state/local employees may face WEP or GPO reductions.
Many plans allow reduced early retirement at 55 with 15+ years. Most plans require a minimum combination of age and service. Check your Summary Plan Description for specific thresholds.
Methodology & Sources ↓
Lifetime Value = Monthly Benefit × 12 × (Life Expectancy − Retirement Age)
COLA Year N = Base Benefit × (1 + COLA Rate)^N
Sources: Office of Personnel Management (OPM) — FERS/CSRS benefit formulas; Bureau of Labor Statistics National Compensation Survey — plan multipliers and coverage rates; Social Security Administration actuarial tables — life expectancy projections; BLS CPI-W data — COLA rate history.
All calculations are pre-tax estimates based on the standard defined benefit formula. Actual benefits depend on your specific plan's rules, vesting schedule, and final average salary calculation method (high-3, high-5, or career average). This tool is for educational purposes only and does not constitute financial or legal advice.