Can a UK Limited Company Remortgage at Swiss or Dutch Rates? The Offshore Myth, Explained

Run a portfolio through a UK limited company (SPV) and the rate gap is hard to miss: UK buy-to-let mortgages sit around 4.5-5.5%, while Swiss five-year fixed mortgages advertise at roughly 1.2-1.9%. That's a spread of three percentage points or more on a headline basis.

The obvious question follows: if a Swiss or Dutch bank can lend at 2%, why can't a UK property company just borrow from that bank and use the proceeds to refinance its UK properties?

At first glance it looks like a straightforward interest-rate arbitrage. It isn't — and understanding why tells you more about how cross-border property finance actually works than the headline rates ever will.

Can an Overseas Bank Lend Against UK Property at All?

Sometimes — but not the way most people picture it. A foreign bank isn't legally barred from lending against UK property, but a conventional retail mortgage bank in Switzerland or the Netherlands doesn't treat a UK buy-to-let portfolio the way it treats a domestic mortgage, because it needs to be comfortable with:

• UK property law and HM Land Registry charge registration
• The UK security and enforcement (repossession) process
• UK anti-money-laundering and know-your-customer requirements
• The borrower's corporate (SPV) structure and beneficial ownership
• The practical cost of enforcing security in a foreign jurisdiction if the borrower defaults

For an ordinary UK BTL lender this is routine. For a bank whose core market is Zurich or Amsterdam, it usually sits outside the standard lending model entirely. Real cross-border lending against UK property lives in international private banking, specialist lenders, or institutions with an established UK presence — not in ordinary overseas retail mortgage products. Many mainstream UK lenders will only lend to UK-incorporated SPVs at all, even where the ultimate shareholders live overseas, which narrows the field further before currency is even part of the conversation.

Why the Advertised 2% Rate Is Misleading

This is the core of the analysis. Seeing a Swiss mortgage advertised at 2.5% and assuming "I can borrow £1m against my UK property at 2.5% instead of 5.5%" skips the single most important variable: what currency are you actually borrowing in?

Borrowing in GBP

If an international lender provides the loan in sterling, the pricing reflects the cost and risk of funding in GBP, full stop. A bank being headquartered in Geneva doesn't turn sterling borrowing into Swiss franc borrowing — it still prices GBP funding costs, credit risk, capital requirements and UK-specific property risk. This is exactly why offshore and expat GBP mortgages on UK property price above resident UK rates, not below them.

Borrowing in CHF or EUR

Here the rate genuinely can be lower. Swiss five-year fixed mortgage rates in mid-2026 sit around 1.2-1.55%, and SARON-linked mortgages track the Swiss National Bank's policy rate, held at 0.00% since June 2025. Dutch and eurozone mortgage pricing tracks the ECB rate, currently 2.25%. But you've now introduced currency risk on top of your property investment: if your rental income is in GBP and your mortgage debt is in CHF, your assets and liabilities move independently of each other every time the exchange rate shifts.

The Foreign Exchange Risk, With Numbers

A simplified example. Your UK property portfolio is worth £1,000,000, and you borrow the sterling equivalent in Swiss francs at an exchange rate of £1 = CHF 1.15 — a CHF debt of 1,150,000. Sterling then weakens against the franc to £1 = CHF 1.05:

• Your CHF debt is still CHF 1,150,000
• Expressed in sterling, that's now £1,095,238

Your sterling-equivalent liability has grown by roughly £95,000 without borrowing an extra penny. That single currency move — an 8-9% depreciation of GBP/CHF — would wipe out three years of the 2.5-3% "saving" versus a 5.5% UK mortgage. GBP/CHF has moved by far more than 8-9% within a single year before, most dramatically around 2008 and again in January 2015.

A Low Rate Doesn't Automatically Mean a Low-Cost Mortgage

On paper, £30,000 a year looks compelling. It ignores FX conversion and ongoing currency exposure, hedging costs if you choose to hedge, cross-border legal and arrangement fees, additional valuation and compliance costs, private-bank relationship or wealth-management fees, and corporate structuring plus cross-border tax advice. Critically, the value of the currency itself can move by far more than the rate differential in any given year — a mortgage that's cheaper on day one isn't necessarily cheaper across a five-year term. Run your own numbers with our mortgage repayment calculator before assuming a lower headline rate nets out ahead.

What Cross-Border UK Property Finance Actually Costs in 2026

This is the part most "offshore rate hack" content skips. Here's what's actually available, priced in GBP, against UK property, today:

The UK Bank of England base rate was held at 3.75% as of April 2026, down from a peak of 5.25% in August 2023. International and offshore borrower pricing tracks this but adds roughly 0.5-1.0 percentage points for the added underwriting complexity, smaller lender pool, and cross-border risk. In other words: the non-UK lenders who will actually put a charge on your UK property tend to charge more, not less, than a standard UK lender, because the low domestic Swiss or Dutch rate was never actually on offer for UK collateral in the first place.

The Private-Banking Catch: Your Wealth Matters More Than Your Property

Where genuine international financing exists, it usually isn't sold as a mortgage product — it's part of a broader private-banking relationship. A private bank assessing this kind of request will typically look at net worth and liquid assets, the existing investment portfolio (often expected to be custodied with the same bank), source of wealth and source of funds, the existing banking relationship and income, currency exposure across your whole balance sheet, and the proposed loan-to-value against the total relationship, not just the property.

You're not buying a cheap overseas mortgage — you're entering a relationship where property finance is one component of a multi-asset offering, and the bank typically wants meaningful assets under management, often several hundred thousand to low millions in investable assets, before it engages. A landlord with a straightforward £1-2m UK BTL portfolio and no significant liquid investment assets usually can't access this route regardless of the headline rate.

Why a UK Limited Company Adds Complexity

A UK SPV adds a layer most retail-facing lenders, foreign or domestic, aren't built to underwrite. Expect scrutiny of ownership structure and ultimate beneficial owners, directors and personal guarantees, rental income and existing charges on the properties, group structures, intercompany transactions and tax residency, and source of funds plus the stated purpose of borrowing. Lenders working with expat limited-company borrowers are explicit that options narrow quickly if the company looks like anything other than a clean, single-purpose SPV set up solely to buy, let and sell property. Our Ltd Co vs personal ownership calculator is a useful starting point for weighing that structuring decision before financing enters the picture.

Security: The Overseas Lender Still Needs a UK Charge

Whichever bank lends, it needs enforceable security over the UK property — typically a registered charge at HM Land Registry, with confidence it can enforce that charge under UK law if you default. This is precisely why specialist international lenders, rather than ordinary Swiss or Dutch retail banks, tend to be the ones actually active in this space: they've built the legal and operational infrastructure for cross-border UK security. A conventional foreign domestic mortgage bank usually just doesn't want that administrative burden for a single overseas SPV client.

Historical Context: This Was Tried Before, at Scale — and It Went Badly

This isn't a new idea. Foreign-currency mortgages on UK and European property have existed since at least the 1980s, originally used by foreign workers whose income was already in dollars or Deutschmarks. But the practice went mainstream and speculative in the mid-2000s as a pure carry trade: households across Europe borrowed in low-yielding currencies, mainly Swiss francs, to fund domestic property purchases. In Hungary, CHF mortgage rates ran around 5.1% in January 2005 versus a 13.8% domestic rate, a spread even wider than today's UK/Swiss gap. At their peak, CHF-denominated loans made up nearly 70% of all new mortgages issued in Hungary in 2008. Cyprus saw a similar pattern, with borrowers paying roughly 8% on Cypriot-currency loans versus around 4% on Swiss franc loans in 2007, including sales to UK nationals with Cyprus property.

Then it unwound. Sterling crashed in 2008, and the Swiss franc, treated as a safe-haven currency, rose more than 40% against sterling from 2007 onward. The real shock came later: when the Swiss National Bank abruptly removed its EUR/CHF currency floor in January 2015, the franc appreciated sharply overnight and borrowers across Central and Eastern Europe saw their repayment obligations jump dramatically. It triggered mass litigation and a series of European Court of Justice rulings on inadequate risk disclosure in these loan contracts, a legal aftermath still being worked through in Polish and Romanian courts years later. Some UK-linked borrowers with Cyprus exposure were hit twice, with Cypriot banks pursuing both the Cyprus property and, in some cases, UK homes over CHF-linked defaults.

Post-2008 regulation was built specifically in response to this episode. Basel III capital rules make banks far less willing to hold foreign-jurisdiction residential property as loan collateral. EU and UK consumer-protection standards, reinforced by the ECJ rulings, impose much stricter disclosure and affordability requirements on foreign-currency lending. And UK mortgage regulation under the FCA's Mortgages and Home Finance Conduct of Business Sourcebook, tightened after the 2014 Mortgage Market Review, constrains who can lend into the UK market and how currency risk must be assessed. The arbitrage that worked, briefly, for well-informed or lucky borrowers before 2008 is precisely the trade that generation of regulation was designed to make harder.

When Does an Offshore or Foreign-Currency Structure Actually Make Sense?

There are genuine cases where it's rational: you earn substantial income in CHF or EUR, you already hold significant assets in that currency, you already have a private-banking relationship, you own property across multiple countries, or you have substantial liquid investment assets that justify bespoke structuring.

The governing principle is currency matching. If your income, assets and liabilities are already predominantly in CHF, CHF borrowing is a natural fit. If your income and assets are almost entirely in GBP, borrowing in CHF adds a risk you didn't previously carry, for a saving that, historically, has proven far smaller and far less reliable than the interest-rate differential alone would suggest.

Bottom Line

For a typical UK property investor running standard BTL through a limited company, no, this isn't a realistic rate hack. A UK SPV with sterling rental income and no material offshore wealth relationship is very unlikely to walk into a Swiss or Dutch bank and secure a 2% mortgage against its UK portfolio. Where cross-border financing does exist, it tends to require a specialist lender or private bank and a genuinely international borrower profile, and the lower headline rate typically comes bundled with currency exposure, extra fees, and minimum-wealth requirements that the interest saving alone doesn't offset.

The better question isn't "where's the world's cheapest mortgage rate?" — it's "what's the lowest-risk, lowest all-in cost of financing my portfolio given my actual assets, income and currency exposure?" That's a question for a specialist cross-border mortgage broker, an international tax adviser, and, where the numbers justify it, a private bank, working together. If you're weighing a standard UK remortgage against staying put, our remortgage break-even calculator and our guide for overseas property investors cover the domestic side of that decision in more detail.

Frequently Asked Questions

Can a UK limited company get a mortgage from a Swiss or Dutch bank?

In principle, yes, but ordinary Swiss and Dutch retail banks are rarely set up to lend against UK residential property — the security registration, UK legal enforcement process and AML requirements typically fall outside their standard lending model. Where it happens, it's usually through a specialist cross-border lender or a private bank, not a mainstream domestic mortgage product.

Why are Swiss mortgage rates so much lower than UK rates?

Swiss rates track the Swiss National Bank's policy rate, held at 0.00% since June 2025, and reflect CHF funding costs and the domestic Swiss property market. UK rates track the Bank of England base rate, 3.75% as of April 2026, and GBP funding costs. The two rates aren't directly comparable because they price different currencies and different domestic risk environments.

Is it possible to remortgage UK buy-to-let property in Swiss francs or euros?

Some private banks and specialist cross-border lenders can structure foreign-currency financing against UK property, usually for clients with substantial existing assets in that currency. Doing so introduces currency risk: your GBP-denominated property and rental income no longer match your CHF or EUR-denominated debt, and historically that mismatch has caused far larger losses than the interest-rate saving, as seen in the 2008-2015 Swiss franc mortgage crisis across Central and Eastern Europe.

What's the cheapest legitimate way to reduce UK BTL mortgage costs?

For most portfolios that means shopping UK lenders directly, using a specialist BTL/SPV broker, and comparing product fees against rate. For investors with a substantial separate investment portfolio, a Lombard (securities-backed) loan against that portfolio, used to pay down or replace property debt, can offer materially lower borrowing costs, but it's secured against your investments rather than the houses and carries margin-call risk if the portfolio's value falls.

What happened to people who took out Swiss franc mortgages before 2008?

Many borrowers across Hungary, Poland, Romania and Cyprus took out CHF-denominated mortgages to exploit lower interest rates. When sterling and other local currencies fell against the franc, sharply after 2008 and again after the Swiss National Bank removed its currency floor in January 2015, outstanding debt and repayments jumped substantially in local-currency terms, triggering widespread litigation and a series of European Court of Justice rulings on inadequate risk disclosure.

Do I need a certain level of wealth to access international private banking mortgage rates?

Generally yes. Private banks offering this kind of financing usually expect a broader relationship, often including a meaningful investment portfolio custodied with them, rather than treating the mortgage as a standalone product. Minimum thresholds vary by bank but are typically well above what a standard UK BTL landlord holds in liquid assets.

Key Takeaways

• Swiss and Dutch banks' low rates apply to loans in their own currency, secured on their own domestic property, funded at their own domestic cost of funds — the label doesn't transfer to a GBP loan against UK property.
• Borrowing in CHF or EUR against UK property can get a genuinely lower rate, but it introduces currency risk that has historically wiped out far more than the rate saving.
• Realistic non-UK-lender rates for UK property in 2026 run higher than domestic UK rates, roughly 4.75-5.5%+, reflecting a complexity premium rather than a discount.
• Genuine international financing tends to arrive bundled with a private-banking relationship and a meaningful investment-assets threshold, not as a standalone cheap mortgage.
• A Lombard (securities-backed) loan against an existing investment portfolio can approach Swiss-level pricing, but it isn't remortgaging the houses — it's borrowing against different collateral entirely.
• The 2008-2015 Swiss franc mortgage crisis across Central and Eastern Europe is the cautionary precedent: currency mismatches between GBP income and foreign-currency debt can move by far more than the rate differential ever saved.

This article is for general information only and does not constitute mortgage, investment, tax or legal advice. International lending criteria, interest rates, minimum loan sizes, wealth requirements and available products change regularly and vary significantly between lenders. Foreign-currency borrowing can result in substantial gains or losses from exchange-rate movements. Obtain independent, regulated advice before entering into any cross-border financing arrangement.