Moving abroad

UK ISAs, Pensions and Investments After Moving to Thailand

A UK tax wrapper may retain its UK treatment without receiving the same treatment in Thailand. Review provider restrictions, Thai taxation, income and gains, treaty provisions and future UK residence before selling or transferring investments.

Updated 4 September 2026 General information

UK ISAs after becoming non-resident

GOV.UK states that a person who becomes non-UK resident can normally keep an existing ISA and retains UK tax relief on assets already inside it. With limited exceptions, they cannot subscribe new money while non-resident and should tell the provider.

Thailand is not required to recognise the UK ISA exemption. Income, gains and remittances from the account therefore need a separate Thai analysis.

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Workplace and personal pensions

Check whether the UK scheme accepts contributions from an overseas member and whether UK tax relief remains available. Employer contributions from a UK company should be reviewed for company deductibility, employment reward and Thai treatment.

Before transferring a pension overseas, compare regulation, charges, investment protections, currency and tax. An overseas transfer can trigger UK tax consequences and should not be made only to simplify access while abroad.

Drawing a pension in Thailand

The treaty distinguishes pensions and government-service payments. Determine which article applies, where tax may be charged and whether relief at source or a foreign tax credit is appropriate.

Keep pension statements and UK tax certificates. The country receiving the money and the bank used are not substitutes for identifying the legal pension source and payment type.

General investment accounts

Record acquisition cost, corporate actions, distributions, withholding tax and disposal proceeds. Thai tax residence, source and remittance rules can make an overseas brokerage account relevant even when the investments are not British.

A non-resident is not normally charged UK Capital Gains Tax on many non-property UK assets, but exceptions and temporary non-residence rules matter. A return to the UK after a short absence can bring specified gains back into charge.

Provider and currency issues

  • Tell providers your genuine address and tax residence
  • Confirm whether services continue for Thai residents
  • Record exchange rates consistently
  • Check withholding-tax documentation
  • Avoid selling solely because an account is difficult to access
  • Review beneficiary and succession arrangements

Frequently asked questions

Can I keep my ISA after moving to Thailand?

GOV.UK says you can normally keep an existing ISA and its UK tax relief, but generally cannot contribute while non-resident. Thai tax treatment must be considered separately.

Is an ISA tax-free in Thailand?

A UK ISA’s exemption is a UK rule. Thailand may apply its own rules to income, gains and remittances, so do not assume the wrapper is recognised.

Should I transfer my pension overseas?

Not without regulated advice. Tax, transfer charges, investment protection, provider eligibility and long-term access can outweigh perceived convenience.