Becoming non-resident stops you subscribing to an ISA. It does not close the account, does not strip the UK tax exemption, and does not force a sale — but your new country has never heard of an ISA.
The ISA rule for leavers is narrow and often misreported. You may only subscribe to an ISA in a tax year in which you are UK resident. That is the restriction, and it is the whole restriction. Existing ISAs stay open, stay invested, keep their UK tax exemption on income and gains inside the wrapper, and can be sold, switched or transferred between providers while you are abroad.
What ends is new money. In the tax year you leave you can normally still use the allowance for the resident part of the year, and after that the account sits there growing, unable to receive anything more until you come back.
What Still Works, and What Stops
| Action while non-resident | Allowed? |
|---|---|
| Keep the ISA open | Yes |
| Buy and sell inside it | Yes, subject to your provider |
| New subscriptions | No |
| Transfer to a different ISA provider | Yes |
| Withdraw | Yes, and free of UK tax |
| Resume subscribing on return | Yes, from the year you are resident again |
Crown servants working overseas and their spouses or civil partners are treated differently and can generally keep subscribing. That exception is narrow — it does not extend to people simply employed by a UK company abroad.
The Part That Actually Costs Money
An ISA is a creature of UK law. No other country is obliged to recognise it, and most do not. To your new tax authority, a stocks and shares ISA is very likely just a taxable brokerage account, and a cash ISA is just an interest-bearing deposit. Dividends, interest and gains inside the wrapper may all be taxable locally, on their rules and their timetable.
A tax-free UK wrapper can be an actively awkward foreign holding. Some countries tax funds on an accruals or deemed-disposal basis, meaning a local tax charge arises on growth you have not realised and cannot fund from inside a wrapper you are not allowed to add to. Check how your destination treats collective investments before you decide to leave the ISA untouched.
Provider Restrictions Are a Separate Problem
Even where the tax position is fine, the platform may not be. Many UK providers restrict what a non-resident customer can do — some will hold an account but not accept new instructions, some restrict fund purchases depending on where you live, and a few will not keep non-resident clients at all. This is a commercial and regulatory decision, not a tax one, and it varies enormously by provider and by destination. Our guide to moving your UK investments abroad covers how to find out before you are told.
Lifetime ISAs Deserve Their Own Thought
A Lifetime ISA carries a government bonus and a withdrawal charge outside the permitted uses, and its property purchase route is tied to UK residential property. Moving abroad does not close it, but it can make the account much harder to use for its intended purpose, and taking money out for anything else triggers the charge. If a LISA was part of a UK house-buying plan that has now changed, that is worth working through specifically.
Coming Back
Residence restores subscription rights from the tax year you are UK resident again. The allowance is annual and does not accrue while you are away — the years abroad are simply lost, not banked. That asymmetry is one small argument for using the allowance fully in the year you leave, if you have the cash and the investment case stands up on its own. Our moving back to the UK guide covers the wider re-entry position.
The Comparison Worth Making
For anyone weighing whether to keep a UK portfolio at all, the ISA question is a small part of a larger one: which country will tax your investment income once you settle, and at what rate. That answer varies more between destinations than most of the UK detail does — our country comparisons set out the headline positions.
Frequently Asked Questions
Do I have to close my ISA when I move abroad?
No. Existing ISAs stay open and keep their UK tax exemption. The only restriction is that you cannot make new subscriptions for any tax year in which you are not UK resident.
Will my new country tax my ISA?
Very possibly. An ISA is a UK construct and most other countries do not recognise it, so income and gains inside the wrapper may be fully taxable locally. Check the destination's treatment of funds before assuming the wrapper protects you.
Can I use my ISA allowance in the year I leave the UK?
Generally yes for the part of the tax year in which you are resident. Allowances do not carry forward, so a year abroad is a year of allowance permanently lost.
Can I still buy and sell investments inside the ISA?
Under the ISA rules, yes. Whether your provider will let you is a separate question, as many UK platforms restrict what non-resident clients can do.
Does the ISA allowance build up while I am away?
No. It is a use-it-or-lose-it annual allowance, and years of non-residence simply pass without one. Subscription rights resume from the tax year you are UK resident again.
Related Guides
Keep reading with these related guides and calculators:
- Moving UK investments abroad — what your platform will and will not allow
- UK tax while living abroad — what stays in UK charge
- Moving back to the UK — when subscription rights resume
- SIPPs abroad — the other wrapper with the same problem
- Compare countries — how destinations tax investment income
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