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expat-finance9 min read

7 Best Ways to Transfer Large Sums of Money Overseas

The best way to transfer large sums of money overseas depends on your deadline. We compare bank wires, FX brokers, forwards and multi-currency accounts.

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A £20 wire fee looks like nothing next to a £300,000 house. That's precisely why it's the wrong number to be staring at.

On a transfer that size, the fee is a rounding error. The cost that actually bites is the exchange rate you're quoted, and the gap between a good one and a poor one can run to five figures on a single payment.

If you're buying abroad, relocating, or moving an inheritance across borders, you've probably found a page of provider rankings sorted by affiliate commission. We'd rather give you the thing those pages skip: the seven channels available for a large one-off sum, what each is genuinely good at, and how to pick.

There is no single best way to transfer large sums of money overseas. The right channel depends on your deadline, how much rate movement you can stomach, and whether the money has to land on a fixed date.

What you're actually paying

Every cross-border payment carries three costs. Only one of them usually appears on the confirmation screen.

The first is the visible transfer fee, typically somewhere between nothing and about £40. Fixed, small, irrelevant at scale.

The second is the exchange-rate margin, and it's the one that matters.

Exchange-rate margin (the spread)

The gap between the wholesale rate at which banks trade with each other and the rate you're actually offered. It's baked into the price rather than charged as a fee, which is why most people never notice paying it.

The third is deductions in transit. A payment sent over the SWIFT network can pass through one or two correspondent banks on its way to the beneficiary, and each may take a slice before passing it on.

Illustrative breakdown of costs on a £300,000 transfer, showing the exchange-rate margin dwarfing the visible transfer fee

Those figures are illustrative arithmetic, not a quoted rate. The shape is the point. Shave a couple of percentage points off the margin and you've saved more than the fee could ever cost you, however many times you send.

So when you compare options, ask one question of every provider. How many euros, dollars or dirhams will actually arrive in the beneficiary account, after everything?

1. The high-street bank wire

The default, and for most people the most expensive default there is.

Sending through your existing bank is genuinely convenient. The money leaves an account you already have, the compliance checks are lighter because they know you, and there's a branch to walk into if something goes wrong.

The trouble is pricing. Retail banking treats foreign exchange as a product line rather than a service, and the margin applied to a personal customer's transfer is set for a market of people who don't shop around.

There's a practical constraint too. Many banks cap online international payments well below six figures, which means a phone call, a branch appointment, or splitting the payment across several days. On a completion deadline, that's a real risk.

Pros

  • Familiar and requires no new account
  • Regulated deposit-taking institution with deposit protection on balances held
  • Straightforward for one-off payments where cost isn't the priority

Cons

  • Exchange-rate margin is usually the widest of any channel
  • Online sending limits often force branch or telephone execution
  • No rate-locking tools for ordinary personal customers
  • Correspondent bank deductions can arrive unannounced

Use it when the sum is modest, the deadline is loose, and the convenience is worth more to you than the margin. On a property purchase, it rarely is.

2. A specialist currency broker

A currency specialist is a regulated payments firm whose entire business is converting and moving money. That focus shows up in two places: the rate, and the fact that a person picks up the phone.

For a large one-off sum, the second part is underrated. A dealer who handles property completions every week will ask what date your money has to land, whether the deposit and the balance are due separately, and who the beneficiary actually is. Those questions catch problems before they become expensive.

Pricing is usually quoted as a margin over the interbank rate rather than a fee, and it typically narrows as the amount rises. Ask for the margin in writing, not just today's rate.

Bank wire vs specialist currency service

Exchange-rate margin on six figures
High-street bankRetail, rarely negotiable
Currency specialistNarrower, usually scales with size
Named dealer to talk to
High-street bank✕
Currency specialist✓
Forward contracts and market orders
High-street bank✕
Currency specialist✓
Online limit on large payments
High-street bankOften capped
Currency specialistHandled by the dealing desk
Deposit protection on money held
High-street bank✓
Currency specialistSafeguarded, not the same as deposit protection
Onboarding before you can send
High-street bankAlready done
Currency specialistAccount opening and ID checks first
FeatureHigh-street bankCurrency specialist
Exchange-rate margin on six figuresRetail, rarely negotiableNarrower, usually scales with size
Named dealer to talk to✕✓
Forward contracts and market orders✕✓
Online limit on large paymentsOften cappedHandled by the dealing desk
Deposit protection on money held✓Safeguarded, not the same as deposit protection
Onboarding before you can sendAlready doneAccount opening and ID checks first

The honest caveat sits in those last two rows. A payments firm safeguards client money in a segregated account rather than holding it as a deposit, which is a different protection to the one your bank offers, and you can't transact until you've been onboarded. Neither is a reason to avoid a specialist foreign exchange service, but both are reasons to set the account up weeks before you need it rather than the morning of completion.

3. A forward contract

A forward contract lets you agree an exchange rate today for a payment you'll make on a future date, usually up to a year or two ahead.

Forward contract

A binding agreement to buy a set amount of currency at an agreed rate on, or before, an agreed future date. You normally put down a deposit (often around 5% to 10% of the contract value) and pay the balance when the contract matures.

This is the single most useful tool on this list for anyone buying property, and the one fewest buyers know exists. The moment you exchange contracts on a home abroad, you've committed to a price in a currency you don't hold. Every day between then and completion, the sterling cost of that house is moving without your permission.

A forward contract stops the clock. You know exactly what the property costs in your own currency, which means you can budget the rest of the move properly.

Used properly, a forward removes risk rather than taking it. Used to guess where the market's heading, it's speculation with a deadline attached.

4. Market orders

If you have time and a rate in mind, you can leave a standing instruction to trade automatically when the market reaches it.

A limit order buys your currency if the rate improves to a level you specify. A stop-loss order does the opposite, executing if the rate falls to a floor you're not prepared to go below. Placed together, they define the range you're willing to live inside, and the market works while you don't.

The catch is obvious once stated. A limit order can sit unfilled for months, and if your completion date arrives before your target rate does, you'll be buying at whatever the market offers on the day.

Pro tip

Never leave a naked limit order running into a deadline. Pair it with a stop-loss, or with a forward contract covering the amount you absolutely must have, so a rate that never arrives can't leave you short.

5. A multi-currency account

A multi-currency account holds balances in several currencies at once, letting you convert when you choose and then pay out locally in the destination country.

For a single completion payment, it adds a step you don't need. For anything ongoing, it's the most flexible option here.

Think of a staged construction payment schedule, a relocation with living costs starting before your income arrives, or a holiday home with local taxes, utilities and maintenance bills for years to come. Converting one large sum and drawing it down beats making twenty small conversions at retail rates.

Two things to check before you rely on one. First, whether outgoing payments reach local accounts as domestic transfers rather than international ones, because that's what avoids the receiving charges. Second, remember that holding a balance in a foreign currency is itself a position: if you convert early and the rate then moves, you've already taken the hit.

6. Staged transfers in tranches

Splitting a large sum into several transfers over weeks or months is the oldest risk-management technique there is, and it still works.

You won't beat the market doing this. What you'll do is average your rate, which removes the chance of converting your entire life savings on the single worst day of the year.

It suits people with no hard deadline. An inheritance being moved to a retirement destination, savings shifted ahead of a move that hasn't been dated yet, or a lump sum you're relocating for the long term. If part of that lump sum comes from a pension, the sequencing matters more than the rate, and it's worth reading up on moving a UK pension overseas before you convert anything.

Where staging fails is under time pressure. Four tranches across four months is a strategy. Four tranches across the four weeks before completion is just four chances to be unlucky.

7. Borrowing in the destination currency

The last option is not to move the money at all.

If you take a mortgage in the country you're buying in, you convert a deposit rather than a full purchase price, and the debt sits in the same currency as the asset. Should you later earn rental income locally, that income services the loan directly, which is about as clean a natural hedge as a private buyer can build.

It isn't free or easy. Lending criteria for non-residents are stricter, loan-to-value ratios are usually lower, arrangement and valuation costs are real, and you're taking on a long-term liability in a currency your income may not be denominated in. If you're paid in sterling and the loan is in euros, your monthly cost moves with the market for the life of the mortgage.

Worth modelling properly, especially for buy-to-let. Rarely the right answer for a cash buyer who simply wants the purchase done.

How to choose in two minutes

Most people overthink this. The decision comes down to your deadline and your certainty.

Match the channel to the situation

  • Fixed completion date, sum committed. Fix the rate with a forward contract for the amount you know you owe.
  • Buying soon, date not yet confirmed. Open the account and get onboarded now, then use a limit order with a stop-loss underneath it.
  • No deadline at all. Stage the transfer in tranches over several months and stop watching the charts.
  • Ongoing costs in the destination country. Convert once into a multi-currency account and pay locally from the balance.
  • Modest sum, cost genuinely not a concern. Your bank is fine. Just ask what rate you're getting before you confirm.

Buying property abroad: the timeline that catches people out

The mistake we see most often isn't choosing the wrong channel. It's leaving the currency decision until the money is due.

Onboarding a new account, passing identity checks and evidencing your source of funds takes days, sometimes longer if the money has come from a property sale or a pension release. Start that process when you make the offer, not when the notary calls.

Vertical timeline of an overseas property purchase showing which currency transfer tool suits each stage from offer to completion

The exposure period is the stretch between exchange and completion. That's the window in which a currency move can quietly add tens of thousands to a purchase you've already agreed, and it's precisely the window a forward contract exists to close. Our overview of buying property abroad walks through how the currency piece fits alongside the legal and tax steps.

Before you send a penny

A large international payment is a target for fraud, and the money is very hard to recall once it's gone.

  • Check the provider on your regulator's public registerIn the UK that's the Financial Conduct Authority register. Confirm the firm reference number matches the name on the paperwork.
  • Verify beneficiary details by phone, on a number you looked up yourselfNever from the email carrying the invoice. Payment redirection fraud targets conveyancing above all else.
  • Prepare your source-of-funds evidence earlySale completion statements, pension paperwork, probate documents or bank statements covering the money's origin.
  • Send a small test payment firstConfirm it lands and the beneficiary name matches before the main transfer.
  • Ask who pays the receiving and intermediary chargesGet it in writing so the amount arriving is the amount the seller expects.
  • Get the all-in rate quoted, not just the headline rateAsk for the exact figure that will credit the beneficiary account.

Moving a large sum abroad?

Talk to our currency team about the timing, the paperwork and the rate before your deadline sets it for you.

Speak to us

Common questions

What is the cheapest way to send a large sum abroad?

For a six-figure sum, the cheapest route is almost always a specialist currency provider quoting a tight margin over the interbank rate, rather than a bank wire. The fee is close to irrelevant at that size; the exchange-rate margin decides the total cost.

Compare providers on one number only: how much lands in the beneficiary account after all charges.

Should I use a bank or an FX broker?

For everyday small payments, your bank is usually fine. For anything approaching a property deposit or a relocation lump sum, a regulated currency specialist will normally give you a better rate and access to tools banks don't offer retail customers, such as forward contracts and market orders.

The trade-off is that a payments firm safeguards client money rather than holding it as a protected deposit, so check the firm on your regulator's register first.

What is a forward contract for currency?

It's a binding agreement to buy an agreed amount of currency at an agreed rate on a future date, usually up to a year or two ahead. You pay a deposit upfront, often around 5% to 10%, and the balance at maturity.

It fixes your cost in your home currency, which is why buyers use it between exchange of contracts and completion. It's an obligation, so you can't walk away if the rate later moves in your favour.

How long does a large international transfer take?

Once funds have cleared with your provider, a major-currency payment typically arrives the same day or the next working day. Less common currencies and destinations can take longer.

The delay that catches people out is at the start rather than the end. Opening an account and clearing identity and source-of-funds checks on a large sum can take several days, so start well before the money is due.

Is there a limit on how much money I can send overseas?

There's no general cap on sending your own legitimately sourced money abroad from the UK, but individual providers set their own limits, and banks often restrict how much you can send through online banking.

Large transfers do trigger anti-money-laundering checks, and both the sending and receiving institutions may ask for documented evidence of where the money came from. Some destination countries also impose reporting rules on incoming funds.

Do I pay tax on money I transfer overseas?

Moving your own money across borders is not itself a taxable event in the UK. Tax may still arise on whatever generated the money, such as a capital gain on a property sale, a pension withdrawal, or income earned abroad.

Destination countries have their own rules on large incoming transfers and on becoming tax resident, so take advice specific to both jurisdictions before you move a substantial sum.

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