The first time you send a salary home from Singapore or Seoul, the number on your banking app looks fine. There is a transfer fee of maybe fifteen dollars, which feels reasonable, and you click send. Three days later a relative tells you what landed, and it is several percent short of what you expected. The fee was never the problem. The exchange rate was.
This is the single most expensive habit among expats in Asia, and it is almost invisible. Banks make most of their money on cross-border transfers not from the headline fee but from the margin they add to the exchange rate. A high-street bank in Hong Kong or Tokyo will routinely quote you a rate two to four percent worse than the real mid-market rate — the one you see on Google when you type "SGD to GBP". On a monthly transfer of three thousand dollars, a three percent margin is ninety dollars gone, every month, on top of any visible charge. Over a two-year posting that is more than two thousand dollars, quietly absorbed.
Why the specialists win
The reason services like Wise, Revolut and OFX exist is precisely this gap. They charge a small, stated fee and apply close to the mid-market rate, which means the total cost is usually well under one percent. Move that same three thousand dollars and you are typically looking at a cost in the region of ten to twenty-five dollars, all in. Wise shows you the breakdown before you confirm, which is the part that matters: you can see the rate you are getting next to the real one.
Skip the bank wire for any routine transfer. There is no scenario in 2026 where a standard SWIFT transfer from a retail bank account is the cheapest way to move a salary home, and the speed advantage banks once had has largely evaporated. A Wise transfer from a Singapore or Japanese account often arrives within hours.
The one genuine exception is large one-off sums — a property deposit, a tax payment, a sum north of fifty thousand dollars. At that level the per-transfer economics change, and a dedicated FX broker like OFX or Currencies Direct will often beat the app, because they can negotiate the rate and waive the fee entirely on volume. For that specific situation, it is worth making three phone calls before you move anything.
The timing nobody mentions
Exchange rates move, and over a two-year posting they can move a lot. The yen's slide against most currencies over recent years meant an expat in Tokyo earning in yen and remitting to a stronger currency lost ground month after month, whatever service they used. You cannot control this, but you can stop fighting it blindly. If your home currency is temporarily strong against the one you earn, that is a bad month to send a large sum and a fine month to hold cash where you are.
A simple rate alert solves most of this. Wise and Revolut both let you set a target rate and ping you when it hits. Set one, ignore it most of the time, and act on the months it triggers. That is the whole strategy — there is nothing cleverer to do, and anyone selling you something cleverer is usually selling you a worse rate.
The account setup that makes it painless
The expats who handle this well tend to share one trait: they hold a multi-currency account. Both Wise and Revolut give you local account details in several currencies, which means you can receive your salary, hold it, and convert it on your own schedule rather than the day it lands. In practice this turns remittance from a monthly scramble into a decision you make four or five times a year.
One caution that catches people in their second year: tax. Several Asian jurisdictions, and several home countries, care about where and when money is remitted. The United Kingdom's rules on remitting foreign income, for example, have tightened, and what counts as "brought into" the country is not always intuitive. Before you set up an automatic monthly sweep home, spend an hour with an accountant who knows both ends. The transfer mechanics are easy. The tax treatment is where the real money is, and it is the part the apps will never warn you about.