Firefighter Lean FIRE: Freedom at Any Income
FIRE Number
$750K
Target Retirement Age
45
Years to FIRE
20
Monthly Savings Needed
$2K
Firefighters achieve what most Americans only dream about: Lean FIRE through their pension. A firefighter retiring after 20 years of service in a "2.75% per year" system earning $75,000 in final salary receives $41,250/year — above the $30,000/year Lean FIRE standard. Combined with a 457(b) portfolio of $200,000–$400,000 (penalty-free at separation), many firefighters at 42–48 have a stronger Lean FIRE position than six-figure earners who neglected their pension.
The firefighter shift schedule — 24 hours on, 48 hours off, or similar — creates extraordinary supplemental income opportunities. Running a side business (HVAC, landscaping, electrical work) on off days can add $20,000–$40,000/year in income. Invested consistently in a 457(b), this side income adds $300,000–$600,000 to the Lean FIRE position over a 20-year career on top of the pension. Firefighters who operate side businesses during their working years often retire with far more financial security than the base salary suggests.
Healthcare post-fire-retirement is the primary Lean FIRE challenge for firefighters. While many departments provide retiree health coverage for 20+ year service members, coverage quality and costs vary widely. Firefighters retiring at 42–48 with limited or no retiree healthcare face 17–23 years before Medicare. Budget $600–$1,000/month for coverage unless your department provides retiree benefits — this significantly impacts the $30,000/year Lean FIRE budget.