FIRE in a High Cost vs Low Cost City: The Numbers Compared
Reference FIRE Number
$1.5M
Target Age
50
Monthly Needed
$4K
Living in a high-cost city (NYC, San Francisco, Boston, Seattle) fundamentally changes your FIRE math in two directions: higher income (often), but dramatically higher spending. A software engineer earning $180,000 in San Francisco spending $8,000/month takes 18 years to reach a $2.4M FIRE number. The same engineer, same salary, relocated to Columbus, Ohio and spending $4,500/month reaches $1.35M FIRE in 12 years — 6 years faster.
The HCOL FIRE trade-off: higher income rarely fully offsets higher costs in the most expensive cities. A $200,000 tech salary in San Francisco after state income tax (13.3%), federal tax, and $6,000/month housing leaves less to invest than a $130,000 salary in Austin with no state income tax and $2,000/month housing. The net savings rate — not the gross salary — determines FIRE speed.
LCOL cities offer a compounding advantage: lower spending now reduces your FIRE number, AND lower spending now increases your savings rate, AND lower spending in retirement further reduces your FIRE number. A $4,500/month lifestyle in retirement requires $1,350,000; an $8,000/month lifestyle requires $2,400,000. The LCOL retiree's FIRE number is 44% smaller while their savings rate is higher — a double advantage that dramatically compresses the timeline.
The FIRE move: many HCOL earners accumulate aggressively at high salaries, then relocate to LCOL areas for retirement. This "earn in HCOL, retire in LCOL" strategy maximizes lifetime earning potential while minimizing lifetime spending. The key questions: can you maintain high-income employment while living in lower-cost areas (remote work), or is the salary premium tied to physical presence? Post-COVID remote work has made this strategy far more accessible.