FIRE With With $800K+ Mortgage (High-COL) — Strategy, Timeline & FIRE Number

With $800K+ Mortgage (High-COL) — Quick Facts

FIRE With $800,000 of Mortgage Debt

Carrying $800,000 of mortgage debt adds complexity but doesn't prevent FIRE. The key is to balance debt payoff with investing — typically by paying off high-interest debt first (credit cards, private loans) while making minimum payments on low-interest debt (mortgages, federal student loans) and investing the difference.

Strategy for With $800K+ Mortgage (High-COL)

Mortgages are usually FIRE-compatible. At 3-7% rates with a fixed payment, mortgages are often the cheapest leverage you'll ever have. Paying off a 3% mortgage early means losing the chance to invest at 7%+ — usually a bad trade unless you're close to FIRE and want the psychological benefit of being debt-free.

1. Don't rush to pay off a sub-4% mortgage — invest the difference
2. For 5-7% mortgages, the math is closer to even — depends on risk tolerance
3. Aim to pay off mortgage by FIRE date to lower your required portfolio
4. Consider 15-year vs. 30-year: 15-year saves 50%+ in interest but doubles monthly payment

How With $800K+ Mortgage (High-COL) Affects Your FIRE Number

Carrying $800,000 of debt can either increase your FIRE number (if you keep the debt into retirement) or decrease it (if you pay it off before FIRE). Most FIRE planners target paying off all high-interest debt before FIRE and either paying off or maintaining low-interest debt based on the math.

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