Whether you’re buying a villa in the south of France, relocating your family to Dubai, or settling an overseas inheritance, transferring a large sum of money internationally is one of the most expensive financial transactions most people ever make, and one of the easiest to get wrong.
If you’re moving £100,000 or more abroad, who you use matters. Banks can build their charges into the exchange rate, and most people never see how much it was.
This guide explains exactly how to transfer large sums of money internationally, how to get the best exchange rate, and how to protect yourself from hidden costs and currency risk along the way.
Why Large International Transfers Cost So Much (And How to Fix It)
The foreign exchange market trades over $7.5 trillion every single day, according to the Bank for International Settlements. At the centre of that market sits the interbank exchange rate, the “wholesale” rate that banks trade with each other. That’s the rate you see on Google.
When you transfer money through your bank, you don’t get the interbank rate. You get a marked-up version of it. That difference is the bank’s margin, and it is not always shown separately. This is where the real cost of international transfers hides.
Your Options: Banks, Fintechs, and Specialist FX Providers Compared
Not all providers are built for large transfers. Here’s how the main options compare when you’re moving £100,000 or more:
| High-Street Bank | Fintech App | Specialist FX Broker | Lucid | |
| Dedicated Dealer | ✘ | ✘ | ✔ | ✔ |
| Forward Contracts | Limited | ✘ | ✔ | ✔ |
| Proactive Rate Alerts | ✘ | Basic | Varies | ✔ |
FX apps work well for smaller transfers, but they weren’t designed for high-value, time-sensitive transactions. They don’t offer forward contracts, you won’t get a dedicated dealer, and there’s no one to call when you need to move £300,000 by Friday to complete on a property.
A specialist provider like Lucid Foreign Exchange is purpose-built for transfers of this size. You get institutional-grade pricing, a dedicated dealer who knows your situation, and access to tools like forward contracts and market orders that simply aren’t available elsewhere. See our private FX service for more detail.
How to Transfer a Large Sum of Money Internationally: Step by Step
Step 1: Know what you’re paying now
Before you transfer anything, check the interbank rate on Google. Then compare it to the rate your bank or current provider is offering. The gap between the two is the real cost of your transfer, not the headline “transfer fee.”
Banks can make their money on the margin, not the fee. A “free transfer” can still carry a wide margin in the rate. Always look at the full cost.
Step 2: Choose the right provider for your transfer size
For transfers under £10,000, a fintech app is usually fine. For anything over £50,000, and especially over £100,000, you need a specialist FX provider. Here’s what to look for:
- Safeguarded accounts: Your money should be held separately from the provider’s operating funds. Lucid never holds or touches client money. It is held by our regulated payment partners. You can verify any provider’s regulatory status on the FCA Register.
- A named, dedicated dealer: Not a chatbot, not a call centre, not a different person every time. Someone who understands your timeline, your objectives, and the market.
- Access to forward contracts: The ability to lock in an exchange rate for future settlement is essential for property purchases and phased transfers.
- Transparent pricing: Your provider should tell you the interbank rate and their margin. If they won’t, that tells you something.
Step 3: Get a price, and understand it
When you speak to an FX provider, ask for a live price and compare it against the interbank rate at that moment. A good provider will walk you through the components:
- The interbank rate (the “wholesale” rate)
- Their margin (how much they add on top)
- The rate you’ll actually receive
- Any transfer fees or SWIFT charges
At Lucid, we show you the full cost before you commit.
Step 4: Decide on timing: spot trade or forward contract?
This is where most people either save or lose significant money. You have two main options:
Spot trade: You transfer at today’s rate, and the funds typically arrive within 1–2 working days. Best for: one-off transfers where the money is ready and you’re happy with the current rate.
Forward contract: You lock in today’s exchange rate for a transfer that settles in the future, anything from one week to 12 months ahead. Best for: property purchases with future completion dates, phased relocations, or any scenario where you want certainty.
For example, if you’re buying a property in Portugal and completion is four months away, a forward contract means you know exactly how many pounds your euros will cost, regardless of what happens to the market between now and then.
Read our full guide to forward contracts to understand how they work and when they make sense.
Step 5: Complete your compliance checks
All regulated FX providers are required to verify your identity and the source of your funds before processing large transfers. This is a legal requirement under UK anti-money laundering regulations and is there to protect you.
Typically, you’ll need to provide:
- Photo ID (passport or driving licence)
- Proof of address (utility bill, bank statement)
- Source of funds documentation (sale contract, savings statements, inheritance paperwork)
A good provider will make this process quick and painless.
Step 6: Execute and track your transfer
Once your rate is agreed, your provider will confirm the details in writing: the amount, the rate, the fees, and the estimated arrival date. Funds are sent via SWIFT or SEPA (for euro transfers), and most transfers from a specialist provider arrive within 1–2 working days.
Common Reasons People Transfer Large Sums Internationally
The process above applies to any large international transfer, but the details vary depending on your situation. Here are the most common reasons our clients move £100k+ abroad:
Buying property overseas
This is the most common reason for large international transfers. Whether it’s an apartment in Barcelona, a farmhouse in Tuscany, or a villa in Dubai, the currency transfer is one of the biggest costs in the purchase, and one of the most overlooked.
Lucid’s property FX service is designed specifically for this. We coordinate with your solicitor, estate agent, and mortgage broker to ensure funds arrive on time and at the right rate.
Relocating abroad
If you’re moving your life to another country, you’ll likely be transferring your savings, the proceeds of a UK property sale, and possibly pension income on an ongoing basis. This often involves multiple transfers over several months, making forward contracts and rate monitoring essential.
Inheritance and estate transfers
Receiving or distributing an inheritance across borders involves large sums and complex timelines. A specialist provider can help navigate the timing and ensure you’re not losing value to poor exchange rates during what’s already a difficult process.
International investments
Investing in overseas property, businesses, or funds requires moving capital across currencies. The exchange rate at the point of transfer directly affects your investment returns.
Corporate payments and supplier contracts
If you’re a business making or receiving large international payments, the same principles apply, but with additional tools available. Hedging strategies, forward contracts, and treasury management can protect your margins from currency volatility. Visit our corporate FX page to learn more.
7 Mistakes to Avoid When Transferring Large Amounts Abroad
- Using your bank without comparing rates. This is the single most expensive mistake. Always check the interbank rate and compare.
- Focusing on fees instead of the exchange rate. A “fee-free” transfer can still cost more once you include the margin in the rate.
- Transferring everything in one go without checking the market. A dedicated dealer can advise on whether to transfer now, wait, or split across multiple trades.
- Not using a forward contract when timing matters. If your transfer is weeks or months away, locking in the rate eliminates uncertainty.
- Ignoring regulatory protection. Always check that your provider holds client funds in safeguarded accounts. The FCA Register is your friend.
- Not planning for ongoing transfers. If you’re relocating, you’ll need regular transfers. Set up a relationship with a provider who offers competitive ongoing rates.
- Leaving it to the last minute. Rushed transfers mean you take whatever rate is available. Planning ahead gives you options.
Frequently Asked Questions
Is there a limit on how much money I can transfer internationally from the UK?
There’s no legal limit on how much you can send abroad from the UK. However, transfers over certain thresholds will trigger anti-money laundering checks, and the receiving country may have its own declaration requirements. Your FX provider will guide you through this.
How long does a large international transfer take?
Euro payments can go via SEPA, which is usually quick and avoids intermediary bank charges. SWIFT payments can take longer, especially if other banks are involved along the way.
Is my money safe with an FX broker?
Lucid Foreign Exchange never holds or touches client money. Your currency exchange and payments are carried out by our regulated payment partners: The Currency Cloud Limited and Equals Connect Limited in the UK, CurrencyCloud B.V. in the European Economic Area, Visa Global Services Inc. in the United States, and Sciopay Ltd for clients we introduce to them. Your money is held by them and never passes through a Lucid account. In the UK and EEA, these partners are required to safeguard client money, which means keeping it separate from their own funds. Full details of each partner and how it is regulated are at the bottom of every page and on our safeguarding page.
What’s the cheapest way to transfer a large sum abroad?
For transfers over £100,000, a specialist FX provider is usually the better fit. The key is the exchange rate margin, not the headline fee, so make sure you see the full cost before you commit.
Can I lock in an exchange rate for a future transfer?
Yes, this is called a forward contract. You agree a rate today for a transfer that settles in the future (up to 12 months). It’s particularly useful for property purchases or phased relocations. Learn more about forward contracts here.
Do I need to pay tax on international transfers?
The transfer itself isn’t taxable. However, the underlying transaction (selling a property, realising investment gains) may have tax implications in the UK and/or the receiving country. We always recommend consulting a qualified tax advisor.
Ready to Transfer? Talk to a Specialist
If you’re planning to transfer £100,000 or more internationally, don’t leave it to chance.
At Lucid Foreign Exchange, we give you:
- A clear price, with the full cost shown before you commit
- A dedicated dealer who understands your situation and timeline
- Access to forward contracts, market orders, and hedging tools
- Your money is held by our regulated payment partners, never by Lucid.
Whether you’re buying property, relocating, transferring an inheritance, or managing business payments, we’ll make sure your money gets where it needs to go, safely, quickly, and at the best possible rate.
No cost and no obligation. Call us, email us, or book a consultation with our team.