Expat & Currency
Currency Risk When You Retire Abroad
Your portfolio is in dollars. Your rent, food, and healthcare are not. The gap between them is currency risk — and it's bigger than most expats expect.
What currency risk is
When you hold dollars but spend in another currency, your real spending power rises and falls with the exchange rate. A 20% drop in the dollar is effectively a 20% pay cut on everything you buy locally — even if your portfolio in dollars is unchanged.
Rate today
฿35/$
If dollar drops
฿28/$
Lost power
−20%
Why it's easy to underestimate
- Exchange rates can swing 20–40% over a multi-year retirement.
- It compounds with sequence risk — a weak dollar early in retirement is its own bad-order problem.
- Local inflation and FX can move against you at the same time.
A plan that only works at today's exchange rate isn't a plan — it's a bet. Model a meaningfully weaker dollar and make sure your odds still hold.
How to manage it
- Stress-test the rate. Re-run your odds assuming the dollar falls 20–30% and see what survives.
- Hold a local buffer. Keep some assets or cash in your spending currency to ride out swings.
- Stay flexible. In a weak-dollar year, lean on discretionary cuts — the same defense as sequence risk.
- Mind guaranteed income. Social Security and US pensions pay in dollars, so they shrink too when the dollar does.
Make it part of the simulation
Treat FX as a real input, not an afterthought. A plan that holds up across a range of exchange rates is one you can actually retire on.
Key takeaways
- Dollar savings + local spending = exchange-rate risk on everything.
- Rates can swing 20–40% over a retirement.
- Stress-test a weaker dollar; keep a local-currency buffer.
- Dollar-denominated income shrinks alongside the dollar.