The most powerful lever in FIRE planning isn't investment returns, savings rate, or even expenses. It's geography. Moving from Switzerland to Thailand doesn't just cut your costs — it cuts your entire FIRE number, meaning years less work. This is geo-arbitrage.
The maths of geo-arbitrage
Your FIRE number is determined by one formula: annual expenses ÷ safe withdrawal rate. Lower your expenses, and your FIRE number drops proportionally. Live somewhere 50% cheaper, and your FIRE number halves.
| Destination | Monthly spend | FIRE number (4%) | vs Switzerland |
|---|---|---|---|
| 🇨🇭 Switzerland (home) | CHF 6,500 | CHF 1,950,000 | — |
| 🇩🇪 Germany | CHF 3,800 | CHF 1,140,000 | −42% |
| 🇵🇹 Portugal | CHF 2,800 | CHF 840,000 | −57% |
| 🇯🇵 Japan | CHF 3,500 | CHF 1,050,000 | −46% |
| 🇹🇭 Thailand | CHF 3,200 | CHF 960,000 | −51% |
| 🇮🇩 Bali | CHF 2,200 | CHF 660,000 | −66% |
CHF 1,950,000 vs CHF 660,000 — that's a difference of CHF 1.29 million. At a savings rate of CHF 3,000/month, that represents roughly 36 years of additional saving. Geo-arbitrage is the single largest lever available to anyone with location flexibility.
How years-saved is calculated
The Geo FIRE calculator computes years-to-FIRE for both the stay and relocate scenarios, using your current portfolio and monthly savings rate. The difference is your geo advantage.
Example: 35-year-old with CHF 100k, saving CHF 3,000/month
Stay in Switzerland
FIRE number: CHF 1,950,000
Years to FIRE: ~24 years
FIRE age: 59
Relocate to Portugal
FIRE number: CHF 840,000
Years to FIRE: ~14 years
FIRE age: 49
Assumes 7% nominal return, 2% inflation (real mode). Geo advantage: 10 years.
What the simulation shows you
Beyond the FIRE number comparison, the Geo FIRE calculator runs a full portfolio simulation for both scenarios on the same chart. You can see:
- →The accumulation curve (identical for both — you're saving the same amount)
- →Two diverging drawdown lines after retirement — "stay" depleting faster, "relocate" lasting much longer
- →Safety rating for the relocate scenario
- →Monte Carlo success probability for the relocate scenario
The real-world considerations
The maths is compelling. The reality requires more thought.
Inflation in the destination country
Thailand's inflation rate (~2.5%) differs from Switzerland's (~1.1%). The Geo FIRE calculator models both separately — your purchasing power erodes at different rates depending on where you live. Over 30 years, this difference compounds meaningfully.
Healthcare
Swiss healthcare is world-class and included in your high cost of living. Abroad, you'll need private insurance. For most destinations this is cheaper than the full Swiss system, but factor it in.
Visa and residency
EU citizens can retire freely in Portugal or Germany. Non-EU destinations like Thailand or Bali have specific retirement visa requirements and may limit long-term residency. Portugal's D7 passive income visa is popular with FIRE expats.
Taxes
Switzerland has tax treaties with most countries. Capital gains and dividend treatment varies. Portugal's Non-Habitual Resident (NHR) regime historically offered significant tax advantages for foreign-source income, though rules evolve. Always take professional tax advice before relocating.
Currency risk
Your portfolio stays in CHF or EUR while your expenses are in local currency. A strong CHF (common historically) benefits expats. A weak CHF increases costs. This is difficult to model perfectly — the simulation assumes the ratio stays roughly constant.
Is geo-arbitrage right for you?
It depends on your priorities. For location-independent workers, digital nomads, and people with grown children and no fixed social ties, it's often the easiest way to retire 5–15 years earlier. For people deeply rooted in one place — family, social network, community — the financial savings may not outweigh the personal cost.
A middle path: plan your FIRE in Switzerland but model the Geo FIRE scenario in parallel. The gap tells you exactly what early retirement is "worth" in years of your working life. That's a meaningful number to have when making the decision.
Compare your stay and relocate scenarios
Select your home and destination country, enter your numbers, and see the side-by-side simulation with the portfolio comparison chart.
Open Geo FIRE Calculator →