UK Expat Tax Guide 2026: Everything You Need to Know

Moving abroad as a UK citizen does not mean you leave HMRC behind. Your tax obligations depend on your residency status, and getting this wrong can be extremely expensive. This guide covers the key things every UK expat needs to know in 2026.

Are You Still UK Tax Resident?

HMRC uses the Statutory Residence Test (SRT) to determine your tax status. The test looks at how many days you spend in the UK, your ties to the country, and whether you work full-time overseas.

Key thresholds to know:

• If you spend fewer than 16 days in the UK, you are automatically non-resident
• If you spend 183 days or more, you are automatically resident
• Between 16 and 182 days, your status depends on your UK ties (family, home, work, 90-day history)

Tax Obligations for Non-Resident UK Expats

Even as a non-resident, you may still owe UK tax on:

• UK rental income from property you own
• UK pension income
• Capital gains on UK property sold after April 2015
• Employment income for work done in the UK

You may also need to continue filing a Self Assessment tax return, especially if you have UK property income.

Double Taxation Treaties

The UK has double taxation agreements with over 130 countries. These treaties prevent you from being taxed twice on the same income. However, you usually need to actively claim relief rather than it being applied automatically.

UK Mortgages While Living Abroad

Getting a UK mortgage as an expat is harder but not impossible. Specialist lenders like Skipton International, HSBC Expat, and Barclays International offer expat mortgage products. Expect:

• Higher deposit requirements (typically 25 to 40 percent)
• Slightly higher interest rates
• More documentation required (proof of overseas income, employment contracts)
• Additional stamp duty surcharge of 2 percent for non-residents

Pensions and QROPS

Your UK State Pension is payable overseas, but it is only index-linked (increases with inflation) if you live in certain countries. In the USA, EU, and EEA countries, your pension increases annually. In Australia, Canada, and many other countries, it is frozen at the rate when you leave.

For private pensions, Qualifying Recognised Overseas Pension Schemes (QROPS) allow you to transfer your UK pension abroad. However, the rules changed significantly in 2024, and transfers can trigger tax charges of up to 25 percent if done incorrectly.

Banking as an Expat

Many UK banks will close your accounts when you move abroad. Plan ahead by:

• Opening an HSBC Expat or Barclays International account before you leave
• Setting up a Wise (formerly TransferWise) account for currency transfers
• Keeping at least one UK bank account open if possible (useful for pensions and rental income)