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Was ist FIRE-Bewegung?

FIRE (Financial Independence, Retire Early) ist eine Bewegung, die durch aggressives Sparen (50–70% des Einkommens) und kostengünstiges Index-Investieren genügend Vermögen aufbaut, um Jahrzehnte vor dem klassischen Rentenalter finanziell unabhängig zu sein.

The 4% rule (Trinity Study) underpins FIRE math: a portfolio of 25× annual expenses can sustain inflation-adjusted withdrawals for 30+ years. Sub-flavours include Lean FIRE (minimal expenses, ~25× small budget), Fat FIRE (comfortable lifestyle, ~25–33× larger budget), Coast FIRE (enough saved to coast to retirement without further contributions) and Barista FIRE (semi-retirement with part-time income covering living costs).

Critics argue FIRE is achievable mainly by high earners with low expenses, and that retiring at 35 carries 60+ years of sequence-of-returns risk. Proponents counter that financial independence — not necessarily early retirement — is the real goal: the freedom to choose work, not need it.

Formel
FIRE Number = Annual Expenses × 25
Beispiel

A household spending CHF 50k per year targets a CHF 1.25m portfolio (25×) to declare financial independence; at a 60% savings rate, they reach the number in about 13 years.

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Is the 4% rule safe?+

Backtested across 1926–1995 US data; subsequent research suggests 3.3–3.5% may be safer for early retirees with long horizons.

Do I have to retire?+

No — most FIRE adherents keep working in some form, just on their own terms.

What if markets crash early?+

Sequence-of-returns risk is the main FIRE threat; maintain a cash buffer, be flexible with spending, or earn a small income to bridge bad years.