Coast FIRE Calculator with Pension
Your pension is a retirement income stream. See how much less you actually need to save.
$329,443→
$42,613
With Pension
Your Information
How Your Pension Reduces Your Target
-$625,000
-$463,316
2-year gap
Age 65 to 65 • Need $50,000 bridge fund
Related Calculators
Need a different calculation? Try these:
How Pension Affects Coast FIRE Math
The 4% Rule in Reverse
The 4% rule says you can withdraw 4% of your nest egg yearly. Flip it: if you have $10,000/year guaranteed income, that's like having $250,000 already saved ($10K ÷ 4% = $250K). A $30K pension? That's $750K you don't need to save.
Gap Years: The Bridge Strategy
If you retire at 55 but pension starts at 65, you have 10 "gap years" to cover. Options: (1) Work part-time during the gap, (2) Build a smaller bridge fund just for these years, or (3) Wait until pension starts to fully coast. Our calculator shows your gap years clearly.
COLA Considerations
Some pensions have Cost-of-Living Adjustments (COLA), others don't. COLA pensions maintain purchasing power—treat them at face value. Non-COLA pensions lose value to inflation. For non-COLA pensions, consider using a lower "effective" amount (reduce by 1-2% per year until pension starts).
Common Pension Scenarios
Teacher's Pension + Social Security
Military Pension + TSP
Corporate Pension + 401k
Frequently Asked Questions
Your pension is guaranteed retirement income, which means you need less from investments. For every $10,000/year in pension income, subtract $250,000 from your required nest egg (4% rule reversed: $10K ÷ 4% = $250K). A $25K pension = $625K less to save.
Yes, but conservatively. Most financial planners recommend assuming SS will provide 75-80% of promised benefits for younger workers. Our calculator uses your full estimate—reduce your expected amount if you're under 50 and want extra safety margin.
The calculator shows your "gap years"—the period between when you could Coast FIRE and when pension starts. Options: (1) Part-time work during the gap, (2) Build a small bridge fund, (3) Delay full coasting until pension kicks in. We show the income needed during this gap.
Check if your pension has COLA (Cost-of-Living Adjustment). With COLA: use the full amount. Without COLA: your pension's purchasing power decreases over time. Consider reducing non-COLA pensions by 2-3% per year of delay in your calculations.
Use our For Couples Calculator and add both partners' pension incomes manually, or calculate separately and combine. Example: Partner 1 pension $20K + Partner 2 SS $18K = $38K/year combined retirement income, reducing your combined target by $950K.
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May you reach the shore soon 🌅