Offshore accounts in Jersey, Guernsey and the Isle of Man

Offshore accounts are bank and savings accounts held in the Channel Islands and other Crown Dependencies rather than in the United Kingdom. Many accounts aimed at British expats are held in the Channel Islands, including international accounts offered by Barclays, Lloyds, NatWest and Santander¹. The islands are not part of the UK, so the firms based there work under different arrangements from high street banks, and some UK protections and rules do not reach them.

The best known example on this page is Skipton International, a bank established in Guernsey and wholly owned by Skipton Building Society, which describes itself as the fourth largest building society in the UK². Skipton International offers savings accounts and UK buy-to-let mortgages, including to people who live overseas³. Its UK buy-to-let follow-on rate, the rate a loan reverts to when its initial deal ends, was set at 7.49% taking effect from 24 August 2026⁴.

This page explains what an offshore bank in Guernsey offers, which UK building societies own offshore banks, how UK buy-to-let mortgages from an offshore lender work, how to apply while living abroad, what happens when the initial deal ends, and where UK protections stop for an offshore customer.

What an offshore bank in Guernsey offers

Skipton International is established in Guernsey and is a bank wholly owned by Skipton Building Society, the fourth largest building society in the UK². Guernsey is a Crown Dependency: it is not part of the United Kingdom, and firms established there are not UK high street banks, even when their owner is a familiar UK name. That is the defining feature of an offshore account. The brand may look like the one on your local high street, but the legal entity behind it sits in the Channel Islands.

What does the bank actually offer? Skipton International's mortgage business covers two markets: UK buy-to-let mortgages for people who want to let property in the UK, and residential mortgages for property in the Channel Islands³. Its Channel Island residential lending includes tracker products, and its three year tracker mortgage states that, following the tracker period, the interest rate reverts to the Skipton International Channel Island residential follow-on rate of 6.49%⁵. The bank also publishes a guide to applying for UK buy-to-let mortgages when resident overseas, aimed at British expats who keep or buy property in the UK³.

Moving money in and out of an offshore account works through the international payments system rather than UK sort codes alone. To send money to a Skipton Building Society account from overseas you need an International Bank Account Number (IBAN) and a SWIFT code, and the payment must carry your nine digit account number as the reference⁷. The same mechanics apply in reverse when UK bodies pay money abroad: the government's guidance on the State Pension paid overseas asks for the IBAN, a BIC, or a bank or brand code and account number for the overseas account⁸. If you are working through the codes for paying abroad, the guide to IBAN, SWIFT and SEPA explains what each one is for.

Two practical limits are worth knowing. Skipton Building Society states that it does not accept foreign currency as cash payments, so cash in euros or dollars cannot simply be paid in over the counter⁷. And its payment details may show up as Barclays, because it uses Barclays for its banking services, which can surprise customers checking a statement⁷. For everyday spending abroad, the guides to using a debit card abroad and withdrawing cash from machines abroad cover the fees and protections that apply to the card side of an expat's money.

Offshore banks owned by UK building societies

Skipton International is the clearest example of an offshore bank owned by a UK building society, but the pattern of mutual lenders operating beyond the standard UK savings account is wider than that. The Building Societies Act sets out exceptions where a building society's customers may still open deposit accounts, including current accounts, client or trustee accounts, qualifying time deposits, deposits at overseas branches, and cases where the society has announced publicly that it intends to transfer its business to a company⁹. Deposits at overseas branches are the exception that makes offshore building society banking possible at all.

The sector behind these brands is large. Building societies and mutual-owned banks operate through approximately 1,300 branches, holding a 35% share of branches across the UK¹⁰, and they have total assets of almost £650 billion¹¹. The distinction between a building society and a bank matters for how the institution is owned: a building society is owned by its members rather than shareholders, which is why the Building Societies Association publishes guidance on the difference between a shareholder and a depositor⁹. An offshore subsidiary like Skipton International is a bank, not a mutual, even though its parent is a building society.

Other building society groupings show how savings and mortgage brands interlock across borders and brands. Accord Mortgages' offset mortgages come with Offset Savings accounts provided by Yorkshire Building Society, so a borrower's savings sit with a different brand inside the same arrangement¹². The Cambridge Building Society accepts overseas payments by telegraphic transfer (SWIFT) into its savings accounts, giving its savers a route for money arriving from abroad¹³. These are not offshore accounts, but they show the range of ways UK mutuals handle money that crosses borders, from a wholly owned Guernsey bank down to a SWIFT payment into a branch-based savings account.

For a reader weighing an offshore account against keeping money in the UK, the comparison is really about where the institution sits and what that changes. The guides to savings accounts, current accounts and banking while you live abroad set out the UK-side options, and the section on protections below covers what changes when the account itself is in Guernsey rather than the UK.

UK buy-to-let mortgages from an offshore lender

An overseas or international mortgage is a mortgage for a property that is not in the UK¹⁴. Skipton International's UK buy-to-let mortgages are the mirror image of that: a mortgage for a property that is in the UK, provided by a lender that is not. The bank's mortgage team describes its role as helping customers understand their buy-to-let options and manage existing mortgages³. This combination, a Guernsey bank lending against UK property, is what makes the offshore angle relevant to a UK landlord rather than only to an expat saver.

The follow-on rate is the number to watch on these products. When the initial deal ends, the loan does not end with it: it reverts to a rate the lender sets. Skipton International's UK buy-to-let follow-on rate was set at 7.49%, taking effect from 24 August 2026⁴. On the Channel Island residential side, the equivalent rate after a tracker period is 6.49%⁵. These are the rates a borrower ends up on if they do nothing at the end of their deal, and the section below covers what that means in practice.

There are also legal conditions around who may take out a consumer buy-to-let mortgage. The legislation that created the registered consumer buy-to-let mortgage category includes the condition that "the person's head office, registered office or place of residence, as the case may be, is in the United Kingdom"¹⁵. So while an offshore lender can offer UK buy-to-let mortgages, the rules around consumer buy-to-let lending look at where the borrower actually lives, and a lender will apply its own criteria on top of that.

One further rule shows how the UK treats overseas buyers with exceptions rather than blanket bans. The Lifetime ISA model conveyancer declaration states that a buy-to-let mortgage is permissible where the client is a UK Crown employee serving overseas, or their spouse or civil partner, and cannot undertake immediate occupation on completion¹⁶. Crown employees posted abroad are a recognised special case in UK property rules, which is worth knowing if that describes your situation.

Applying for a UK buy-to-let mortgage while living overseas

Skipton International publishes a guide to applying for UK buy-to-let mortgages when resident overseas, so the process is designed for people who are not living in the UK at the time they apply³. What does the application itself involve? In general, a mortgage application asks for proof of income and identity: you will need statements from an accountant and tax return form SA302 if you are self-employed, plus supporting information such as bank statements and receipts¹⁷. Which? notes that lenders vary on how many years of accounts they want from self-employed applicants, and that some lenders will accept two SA302 forms¹⁸.

The deposit is the other big difference when property and borrower are in different countries. The deposit needed to buy an overseas property tends to be higher than you would need for a standard UK mortgage¹⁴. That guidance is about buying property abroad, but the same logic runs in reverse: a lender taking on a borrower who lives abroad, or a lender based abroad itself, tends to want more equity in the property to offset the extra difficulty of assessing and enforcing the loan.

Opening the accounts that sit alongside the mortgage follows the same pattern as UK banking, with an added distance hurdle. To open a bank account you usually have to fill in an application form, in a branch, online, or sometimes over the phone, and provide proof of identity including your full name, date of birth and address¹⁹. You usually have to show the bank two separate documents proving who you are, for example a passport, and where you live, for example a recent bill¹⁹. Official guidance for Homes for Ukraine guests makes the same point: applicants may need to download and fill in an application form from the bank or building society's website²⁰. For someone applying from abroad, the download-and-return route is often the practical one.

If you are living abroad and renting out a UK home, the guide to letting your UK home while you live abroad covers the landlord side, and buying property abroad covers moving large sums and fixing exchange rates when the purchase itself is overseas.

When the initial deal ends: the follow-on rate

Every fixed or tracker mortgage has an end date, and what happens next is set out in the mortgage's terms. The loan reverts to the lender's follow-on rate: a rate the lender sets, which the borrower does not choose and which is not tied to the deal they originally took. Skipton International's UK buy-to-let follow-on rate is 7.49% from 24 August 2026⁴, and its Channel Island residential follow-on rate after a tracker period is 6.49%⁵. A borrower who does nothing at the end of their deal moves onto that rate automatically.

The follow-on rate is not a penalty and not a trap, but it is rarely the best place to park a loan for long, because it is a rate the lender sets rather than one the market competes for. The alternative is to look at a new deal, with the same lender or a different one, before the initial period ends. The mortgages guide covers how remortgaging works and what a lender will ask for.

What happens if payments are missed is where the protections come in. Most banks and building societies that signed the government's mortgage charter agreed not to force people to leave their home within a year of their first missed payment unless there are exceptional circumstances²¹. The charter says that people with mortgages will not be forced to leave their home within a year of their first missed payment²². Shelter's guidance on the repossession process and on dealing with missed mortgage payments sets out the steps a lender must follow and where a borrower in difficulty can get help²¹.

Two credit-file consequences are worth knowing about. The Financial Ombudsman Service warns that fraud markers are serious: customers may find they cannot open a bank account, their bank account is closed and they cannot open another one, or their mortgage application is rejected²³. And UK Finance notes that where a couple with a joint mortgage is no longer together, it may be possible to break the financial association after six months, but all other shared financial products, such as joint bank accounts, must have been closed²⁴. A follow-on rate is a pricing question; these are the things that can affect your ability to borrow at all.

Mortgage forms and paperwork

Skipton International makes its mortgage forms available to download, and to print off if required³. That matters for an offshore customer because there is no branch to walk into: the forms page is the front door. The same pattern exists across UK banking. Account applications can generally be completed online, in person or by phone²⁵, and banks and building societies commonly ask customers to download and fill in an application form from their website²⁰.

The paperwork a lender wants falls into a few groups:

• Proof of identity and address: usually two separate documents, one proving who you are, such as a passport, and one proving where you live, such as a recent bill¹⁹.
• Proof of income: for the self-employed, statements from an accountant and tax return form SA302, plus supporting information such as bank statements and receipts¹⁷.
• The application form itself: downloaded and printed, or completed online, depending on the lender³.

For overseas residents, the practical points are about evidence and delivery. Documents that prove an overseas address may differ from the utility bills a UK lender expects, so it is worth checking with the lender what it accepts before applying. And because the forms can be printed and returned rather than completed in a branch, an applicant can gather everything before making contact, which the guide to everyday money tasks covers for the UK equivalents.

If the paperwork is about a dormant account rather than a new mortgage, there is a free tracing service. My Lost Account is associated with UK Finance and the Building Societies Association, and its forms distinguish between lost accounts with banks, accounts with building societies that have become banks, current building societies, and NS&I products²⁶. Paper forms are also available in bank and building society branches, and paper applications take longer to process than online ones²⁷.

Where UK protections stop for an offshore customer

The UK's regulatory perimeter does not stretch to every account a UK customer holds. The FCA's rules on information about current account services, BCOBS 7, state that the chapter does not apply to accounts held by banking customers whose main correspondence address is outside the United Kingdom, accounts held by customers aged under 18, and accounts which may be used for a currency other than a currency of the United Kingdom⁶. The same exclusions appear in the FCA's own instrument record of the rules²⁸. For an offshore customer whose main address is abroad, or whose account can hold another currency, these conduct rules do not apply.

Practical limits show up in the small print of ordinary transactions. Electronic withdrawals from Skipton Building Society savings accounts must go to a UK bank or building society account in the customer's own name²⁹. Repayments of overpaid import duty and VAT can only be made to a UK bank account³⁰. Foreign currency cash is not accepted⁷. Each of these is a small thing, but together they mean an offshore or overseas customer often needs a working UK account as the hub of their finances, with the offshore account connected to it rather than standing alone.

Where things go wrong, help exists but the route depends on the problem. If a bank closes an account because of a form of credit attached to it, such as an overdraft, debt charity guidance on bankruptcy processes explains when that can happen³¹. For mortgage arrears, Shelter's repossession guidance and the mortgage charter set out what lenders agreed to do²¹. For complaints about financial services, the Financial Ombudsman Service is the UK's complaint handler, and free debt help is available from charities such as StepChange³¹. The guide to consumer protection in UK financial services explains what the ombudsman can and cannot look at, which is the key question for a complaint about an account held offshore.