Buying property abroad: moving large sums and fixing exchange rates

Buying a home abroad usually means moving a very large sum of money from pounds into another currency, and that makes the exchange rate part of the price of the property. An overseas or international mortgage is a mortgage for a property that is not in the UK, and if you borrow in a foreign currency, exchange rate fluctuations will affect your repayments¹. Even if you buy outright with savings, the number of pounds the home costs depends on the rate on the day you convert, and that rate can move against you between making an offer and completing the purchase.

The scale of the movement matters more than its direction. The standard European mortgage information sheet includes a worked warning for foreign currency loans: if the value of sterling fell by 20% relative to the credit currency, the value of your loan would increase, and it could be more if sterling falls by more than 20%². The same arithmetic applies to the purchase price itself. A home agreed at one pound cost can become materially more expensive in sterling before the money moves, which is why buyers of overseas property use tools that fix or watch the rate rather than converting everything on one day.

Deposits abroad also tend to be larger than UK buyers are used to. The deposit needed to buy an overseas property tends to be higher than you would need for a standard UK mortgage, and in Spain, for example, it is common for overseas buyers to pay 30% to 40% of the property price as a deposit¹. That is a large sum to have ready in the right currency at the right time, and it is usually paid in the local currency, not pounds.

Why the exchange rate matters when you buy property abroad

A property purchase abroad is rarely a single payment. There is usually a reservation or exchange deposit, then a balance at completion, and sometimes stage payments on a new build. Each payment is a separate currency conversion, and each one happens at whatever the market rate is that day. If the rate moves between the deposit and the balance, the total pound cost of the same property changes even though the price in local currency has not moved at all.

The risk is largest when the purchase is funded partly by borrowing in the local currency. Which? notes that if you take an overseas mortgage in a foreign currency, exchange rate fluctuations will affect your repayments¹. Your monthly payment in euros or dollars may be fixed, but the number of pounds it takes to make it is not. The regulator's own mortgage rules recognise this: the standardised information sheet given for foreign currency loans must spell out, with a worked example, what happens to the sterling value of the loan if sterling falls by 20%, and that the effect could be worse if sterling falls further².

There are also practical differences in the buying process that affect when your money has to be ready. In some countries you might be required to appoint a notary to oversee the transaction¹. Some countries limit which areas foreign buyers can purchase in, or require you to apply for a licence if you want to rent the property out¹. These local rules set the timetable, and the timetable sets how much currency risk you carry: the longer the gap between agreeing the price and paying the money, the more time the exchange rate has to move.

Banks add another constraint. UK high street banks tend only to provide mortgages for purchases in countries where they have offices¹, so many buyers fund the purchase from UK savings, a sale of a UK home, or a lender in the country where they are buying. Whichever route you take, the money usually starts in pounds and has to arrive in the local currency, which is where the transfer methods below come in.

Spot transfers: paying at today's live rate

A spot transfer is the simplest arrangement: you convert your pounds and send them more or less straight away, at the live market rate at the time of the conversion. The amount is converted using the exchange rate at the time of the conversion⁷, so the rate you get is the one the market is offering on that day, plus whatever margin and fees the firm you use builds in.

For a property purchase, the main thing to understand about a spot transfer is what it does not do: it does not protect you from later movements. If you convert the deposit today and the rate moves against you before the balance is due, the balance costs more in pounds. Buyers who are happy with the rate available, or who need the money to move immediately, use spot transfers; buyers who want certainty about a future payment use a forward contract instead.

Costs come from two places. The firm's margin is usually inside the rate you are quoted, so it is worth asking what the rate includes before agreeing. Separate fees can apply on top: using an ordinary debit card abroad carries a foreign exchange fee, often around 3% of the transaction amount³, and credit cards typically charge a non-sterling transaction fee of up to 2.99% each time you use one⁴. Those percentages are trivial on a coffee and very large on a house, which is why card payments are not how property purchases are normally funded. A dedicated transfer, by contrast, can be cheap: an official consultation on pension transfers estimated a cost saving per transfer of approximately £25 for one category of transfer and approximately £59 for another, against doing the same thing less efficiently⁸.

Speed is worth knowing too. Money sent using Faster Payments through online banking on a smartphone app will reach the recipient's account within 2 hours, and sometimes it is received immediately⁶. That is the UK domestic standard. International transfers take longer because they cross borders and payment systems, so for a completion date abroad you confirm timings in advance rather than assuming same-day arrival.

Forward contracts: fixing a rate ahead of a payment

A forward contract fixes an exchange rate now for a payment that happens later. You agree the rate, the amount and the date with the currency firm, and when the date arrives you pay your pounds and receive the agreed amount of local currency whatever the market has done in between. The purchase price of the home in pounds is therefore known from the moment the contract is struck, which is the whole point: the rate risk is removed rather than merely watched.

This idea of locking in ahead of time is familiar from the UK mortgage market. Under the Mortgage Charter, customers approaching the end of a fixed rate deal have the chance to lock in a deal up to six months ahead⁹, and the government describes the same arrangement as allowing customers to lock in a new deal up to 6 months ahead of the end of a fixed rate deal, and to request a better like-for-like deal up until the new one starts if one is available¹⁰. A currency forward works on the same principle applied to the exchange rate instead of the mortgage rate: you trade the chance of a better rate later for certainty now.

Forward contracts are typically used for payments with a known date, such as a completion balance or a stage payment on a new build. Firms generally ask for a deposit when the contract is agreed, with the balance paid on or near the settlement date, but the deposit percentage is set by each firm and varies with the amount, the currencies and how far ahead you are fixing, so it is something to confirm in writing before committing.

The trade-off is symmetrical. If the market moves in your favour after you fix, you still pay the fixed rate, and the difference can be substantial on a property-sized sum. And because the price of the contract depends on the foreign exchange market, the usual online cancellation rights do not apply, as the next sections explain.

Limit orders buy currency only when your target rate is reached

A limit order is an instruction to buy the currency only if the market reaches a rate you choose. You tell the firm your target rate and the amount; if the market reaches that rate, the order fills automatically; if it never does, nothing happens. It suits a buyer who has a rate in mind, perhaps one that would make the purchase comfortably affordable, and who is willing to wait for it rather than take today's rate.

The crucial feature is that the order is conditional. Unlike a spot transfer, which always executes, and a forward contract, which always fixes, a limit order may simply never trigger. That is the risk you accept in exchange for the chance of a better rate: the market may reach your target tomorrow, or in six months, or never. If the purchase timetable runs out before the rate does, you may end up converting at the end anyway, at whatever rate then prevails.

The second thing to know is that these contracts sit outside the normal distance-selling cancellation rights. Under the FCA's rules there is no right to cancel a distance contract whose price depends on fluctuations in the financial market outside the firm's control, which expressly includes foreign exchange⁵. So a limit order is not a free option you can walk away from once it has filled: once the market hits your target and the order executes, you have bought the currency. Whether you can cancel or amend an order that has not yet triggered is a matter of the firm's own terms, not a legal right, and it is worth confirming in writing before setting one up.

Rate alerts: watching the market without committing

A rate alert is the lightest-touch tool of all. You register a currency pair and a target rate with a currency firm or comparison service, and the firm sends you a message, typically by email or text, if the market reaches that level. Nothing is bought, nothing is fixed and nothing is owed: an alert is information, not a transaction. It suits someone at an early stage, perhaps still viewing properties, who wants to know when the rate is in a range they care about before deciding how to convert.

Because an alert commits you to nothing, it pairs well with the other tools. A common pattern is to set an alert while a purchase is being negotiated, then move to a limit order or forward contract once the price and timetable are known. The alert tells you the market has reached your level; the limit order or forward contract is what actually secures the rate.

Two consumer points are worth knowing while you shop around. First, registering with firms means hearing from them: if you want to stop unsolicited sales and marketing calls, the Telephone Preference Service is a free service where you can register your preference not to receive them¹¹. Second, when you deal with a firm through a website, the trader must ensure that any trading website through which the contract is concluded indicates clearly and legibly, at the latest at the beginning of the ordering process, whether any delivery restrictions apply and which means of payment are accepted¹². In other words, the site should tell you up front what you can pay with and any limits, before you start the order.

Spot, forward or limit order: how each one behaves

The four methods differ mainly on two axes: whether a rate is secured, and whether you are committed. A spot transfer executes now at the live rate. A forward contract secures a rate now for a payment later, and commits you to it. A limit order commits you only if the market reaches your target. A rate alert commits you to nothing at all.

The choice usually comes down to the timetable and how much uncertainty you can carry. A buyer paying a small reservation deposit may simply spot transfer it. A buyer with a large balance due on a fixed completion date often prefers the certainty of a forward contract, accepting that a later improvement in the rate will not reach them. A buyer with flexibility on timing may run a limit order and accept the risk that it never fills. Many purchases use more than one method across the different payments.

One rule of thumb from the regulator's framework applies to all of them: changes in interest or exchange rates may be applied immediately and without notice where they are based on reference rates provided to the user, or where they are more favourable to the user¹³. Live rates do not wait for anyone, which is why every method above is defined by when it pins the rate down.

How to arrange a currency transfer for a property purchase

The practical steps run from the local rules to the receiving account. It is worth doing them in an order that avoids surprises.

1. Check the local requirements first. Some countries require a notary to oversee the transaction, limit where foreign buyers can purchase, or require a licence to rent the property out¹. These rules affect when money is due and what documentation the transfer needs to carry.
2. Confirm the amounts and dates in the local currency. The deposit and the balance will be specified in the currency of the country where you are buying, and the deposit may be substantial: overseas buyers in Spain commonly pay 30% to 40% of the property price as a deposit¹. Work out what each payment means in pounds at current rates before you commit.
3. Choose how to convert. Spot, forward or limit order, as set out above, depending on the dates and how much rate risk you want to carry.
4. Verify the receiving account details. International transfers are routed by codes such as IBAN and SWIFT, and a mistyped digit sends money to the wrong place. Confirm the account details with the recipient through a channel you trust, not only by email, and be aware that fraudsters target property transactions specifically.
5. Send the money and keep records. Keep the rate, the amount, the date and the confirmation for each payment. If any part of the transaction touches UK official payments, note that HMRC asks that all overseas payments to it are made in sterling, and your bank may charge you if you use any other currency¹⁴, a reminder that currency choice can carry fees in both directions.

Large transfers also attract checks. Firms sending money abroad run anti-money-laundering and verification checks, and the larger the sum the more documentation they may ask for, so expect to prove your identity, the source of the funds and the nature of the purchase. Starting the account or transfer arrangement early avoids a completion date being held up by paperwork.

Where a target rate may not be reached

The honest limitation of a limit order is that the market owes you nothing. Rates can spend months on one side of a target, and a purchase timetable will usually expire before an unreachable target does. When that happens, the choice is between converting at the prevailing rate anyway, fixing a rate with a forward contract to stop further drift, or walking away from the purchase. None of these is a good or bad choice in the abstract; it depends on how the rate compares with the one the purchase was priced at.

The rules also limit your room to change your mind once a market-dependent contract is made. There is no right to cancel a distance contract whose price depends on fluctuations in the financial market outside the firm's control, including foreign exchange⁵, and a separate provision removes cancellation rights where the consumer, at the time of signing the application, is habitually resident outside the UK and not present in the UK¹⁵. Anyone buying abroad, or already living abroad when they arrange the transfer, should therefore assume that what they sign is what they are bound to.

A different kind of charge can arise when the money being moved is not savings but a pension. Where the overseas transfer charge arises in the case of a transfer, the charge is 25% of the transferred value, and for a transfer from a registered pension scheme established in the United Kingdom, the transferred value is the total of sums and assets transferred¹⁶. That is a tax on pension transfers, not on property purchases, but it is a sharp illustration that moving large sums across borders can trigger charges that ordinary transfers do not, and it is one reason to take advice before moving pension money abroad to fund a home.

Protection, and where it stops

Currency firms operating in the UK are subject to FCA rules, and those rules give you some real protections, but they stop at the market. On the plus side, a trading website must tell you clearly, at the latest at the beginning of the ordering process, whether any delivery restrictions apply and which means of payment are accepted¹², so costs and limits should be visible before you commit. Rate changes may be applied immediately and without notice where based on reference rates provided to the user, or where they are more favourable to the user¹³, which is the rules acknowledging in plain terms that live rates move without warning.

Where protection stops is cancellation and market movement. There is no right to cancel a distance contract whose price depends on foreign exchange market fluctuations⁵, and the same exemption applies to consumers habitually resident outside the UK who are not present in the UK when they sign¹⁵. You cannot undo a forward contract because the rate later improved, and you cannot unwind a filled limit order because you changed your mind.

Two further practical points. If marketing calls become a nuisance while you compare firms, the Telephone Preference Service is a free service where you can register your preference not to receive unsolicited sales and marketing calls¹¹. And if something goes wrong with a UK-regulated firm, complaints can be taken to the Financial Ombudsman Service; MoneyHelper, the free government-backed money guidance service, explains how to open, switch or close a bank account and where to go with a complaint about one³. For firms based wholly overseas, UK complaint routes and protections may not apply at all, which is a reason to check where a firm is authorised before sending it the price of a house.

UK tax once you own property abroad

Owning property abroad does not end your UK tax connections, and in some cases it adds to them. What follows is an outline of the main points, not a full tax picture, and the rules differ between the UK nations on property taxes.

Stamp duty on any UK property you keep. If you keep or buy a home in the UK while owning property abroad, the additional-property surcharge applies: buying additional properties in England and Northern Ireland carries a 5% stamp duty surcharge¹⁷. Overseas-based buyers of residential property in England and Northern Ireland must pay a surcharge of 2% on top of normal rates¹⁸, and overseas residents buying an investment property pay stamp duty at 7% more than the standard rates for home movers¹⁸. Buy-to-let stamp duty in England and Northern Ireland runs from 0% on a property price of £40,000 or less, through 5% on the band from £0 to £125,000 for higher-priced properties, 10% on £250,001 to £925,000 and 15% on £925,001 to £1.5m¹⁸. For additional properties, stamp duty bands reach 15% on £925,001 to £1.5 million and 17% over £1.5 million¹⁹. If HMRC views you as replacing your main residence, even though you own an interest in another property, standard stamp duty rates apply rather than the surcharge¹⁷.

The devolved taxes. Wales and Scotland run their own property taxes with their own thresholds. In Wales, land transaction tax higher residential rates apply to transactions of residential property costing £40,000 or more²⁰, and the higher rates for residential property include a band of 12.5% on the portion over £400,000 up to and including £750,000²¹. In Scotland, Land and Buildings Transaction Tax charges a nil rate on purchase prices up to £145,000²², and the Scottish Budget for 2026-27 increases the residential nil rate band from £145,000 to £175,000 for first-time buyers²³. The additional dwelling supplement in Scotland shares a common policy origin with the equivalent surcharges in England, Wales and Northern Ireland, which were all planned for introduction from 1 April 2016²⁴. If your overseas purchase sits alongside a UK one, these devolved rules apply to the UK side.

Rental income. If you let the overseas property out, you will need to pay tax on your rental income, and if you sell it you might need to pay capital gains tax, depending on the country's rules and its double-taxation agreement with the UK¹. On the UK side, if you earn less than £1,000 from renting property, you do not have to report it²⁵. Above that, the property allowance matters: you would only want to claim it if what you actually spend is less than £1,000²⁶. Rental income from property abroad may also need to appear on a self-assessment tax return, and TaxAid's guidance on property rentals and on who needs to complete a return covers when that applies²⁶.

Inheritance tax. UK inheritance tax can follow property abroad, because the tax looks at worldwide assets for UK-domiciled people. Thanks to an extra allowance introduced in April 2017, couples can now leave property worth up to £1m before paying any inheritance tax²⁷. Whether an overseas home counts as the property that attracts the allowance depends on the circumstances, and this is an area where the interaction of two countries' tax rules usually needs advice.

Double taxation. Income and gains on an overseas property may be taxed both abroad and in the UK. The UK has double-taxation agreements with many countries, and which agreement applies, and what it credits, depends on the country and the type of income¹. The practical step is to establish, before buying, which country taxes what, so that rent and any eventual sale are not taxed twice without relief.