Which currency should my savings be in if I’ll spend them somewhere else?

Match money to the currency of the bill it will pay. Money you will spend in the next few years — a house deposit, school fees, the first years after you stop working — is safest in the currency you will spend it in, because an exchange-rate swing can wipe out years of interest just before you need it. Long-term growth money is different: it can sit in other currencies as part of a spread of investments, and move towards your spending currency as the date approaches.

Why the currency matters over decades

Over long periods, currencies with higher inflation have tended to weaken against those with lower inflation — though not neatly, and not year by year. The rupee is a clear case. Between 2000 and 2024, India’s consumer prices rose about 4.2 times and US prices about 1.8 times; over the same years a dollar went from about 45 rupees to about 84. The rupee lost ground, though by less than the inflation gap alone would suggest (that gap pointed to about 103). For someone saving in dollars or dirhams to spend in rupees, that drift has helped; for someone saving in rupees to spend in dollars, it has hurt.

Short-term money and long-term money

• The next few years’ spending: in the spending currency, in something that does not swing — deposits or short-term instruments. This is a rule of thumb from matching assets to liabilities: a known bill on a known date should not depend on an exchange rate on that date.
• Long-term growth money: spread across markets, and so across currencies. Vanguard’s 2026 research on currency hedging finds that hedging foreign bonds almost always lowers a portfolio’s risk, because bonds move far less than currencies, while leaving foreign equities largely unhedged can add diversification. Its rule of thumb — hedge most foreign bonds, leave foreign equities largely unhedged — was tested on investors in developed markets, so treat it as a starting point.
• In between: shift gradually towards the spending currency over the years before you need it, rather than all at once.

Pegged currencies

Some currencies are fixed to another. The UAE dirham is pegged to the US dollar at 3.6725 (also the World Bank’s annual average for both 2024 and 2025), and the Hong Kong dollar has been kept between 7.75 and 7.85 to the US dollar since 1983. A peg removes most of the day-to-day risk between the two currencies it links, but a dirham saver spending rupees still carries the full dollar–rupee risk. And a peg is a policy commitment, not a law of nature.

Moving money across

• Convert in instalments rather than in one go, so that no single day’s rate decides the outcome.
• Compare the rate you are offered with the published mid-market rate; the gap, plus any fee, is what the conversion costs.
• Check how each account is treated in the country you settle in — for tax, and for any deposit protection, which can differ for accounts held in a foreign currency or abroad.

Common mistakes

• Keeping the next two years’ spending in a currency other than the one you will spend.
• Holding everything in your spending currency, so that your whole future rides on one economy and one market.
• Treating a high deposit rate in a high-inflation currency as free money. Part of that rate may simply make up for higher inflation, and for the currency weakening with it.
• Moving everything on one day because the rate looks good.

How Nivritee handles currencies

Every money box that feeds the projection offers a currency picker, so you enter money as you hold it — see how to enter money held in another currency. Everything is converted into your plan’s currency at today’s rate before any figure is worked out. When your plan holds money in another currency, the stress test Your money abroad buys 15% less becomes available: in the year you stop working, everything you hold, earn, pay or expect in another currency loses 15% of its value in your plan’s currency, and stays there. Investment Performance’s Markets and currencies reading judges your listed holdings against the currency you will be spending.