The FIG regime: claim or don't?
Claiming the four-year FIG regime makes your foreign income and gains UK-tax-free - but it isn't free. For any year you claim, you give up your personal allowance, your capital gains exempt amount and your foreign tax credit relief. This works out whether the shelter beats the giveaway, on your numbers.
A claim is a trade, not a freebie
The FIG headline - 100% relief on foreign income and gains for your first four UK years - sounds like an obvious yes. It often is. But HMRC makes you pay a toll for it: in any tax year you claim, you lose your income-tax personal allowance, lose your capital gains annual exempt amount, can't use foreign losses, and can't claim foreign tax credit relief on what you're sheltering. If you have a chunky UK salary that year, those lost allowances can cost more than the foreign tax you're avoiding.
This isn't a reason to skip FIG - it's a reason to do the arithmetic. Set your numbers below and the calculator runs both scenarios and tells you which year-by-year decision keeps more in your pocket. First check you're eligible at all with the UK Residence Test, and see where FIG sits in the wider plan in Bringing your money home.
UK tax if you DON'T claim
Worldwide, with foreign tax credit relief
UK tax if you DO claim
Foreign sources free, allowances lost
Difference
What the better choice saves you
UK-source income that's taxable however you choose. This is what loses its personal allowance if you claim FIG.
Gains you'd realise this year - e.g. rebasing or selling foreign investments inside the FIG window.
Tax paid abroad on this foreign income and gains. In the no-claim scenario it's credited against your UK bill (foreign tax credit relief). Leave at 0 for a zero-tax Gulf source.
Set your numbers
Enter your UK income and your foreign income and gains. The calculator runs the full UK tax both ways - claiming the FIG relief and not claiming it - and shows which leaves you better off this year.
Claiming costs you / saves you
The trade-
−
Personal allowance lost Extra UK tax because your allowance disappears.£0
-
−
CGT exempt amount lost The GBP 3,000 capital gains allowance, gone for the year.£0
-
+
Foreign tax sheltered UK tax on the foreign income and gains you no longer pay (net of the credit you'd have got anyway).£0
-
=
Net effect of claiming Benefit minus the allowances you give up.£0
What you give up when you claim
For every tax year you make a FIG claim, four things go - and they go for the whole year, not just the sheltered slice:
- Your personal allowance (GBP 12,570). Every pound of UK income that used to be tax-free is now taxed from the first pound. On a higher-rate salary that's worth over GBP 5,000 of extra tax.
- Your CGT annual exempt amount (GBP 3,000). Any UK gains you have that year lose their first GBP 3,000 of shelter too.
- Foreign losses, which you can't set against anything for that year.
- Foreign tax credit relief on the sheltered income and gains - because you're not paying UK tax on them, there's nothing to credit the foreign tax against. If you paid real tax abroad, claiming FIG can mean that foreign tax is simply lost.
What you save when you claim
Against that, the claimed foreign income and gains become completely free of UK tax. For someone coming back from a zero-tax Gulf posting with large embedded gains and no foreign tax paid, that's usually a landslide in favour of claiming: there's no foreign tax credit to lose, and the UK tax avoided on a big gain dwarfs a lost personal allowance. The decision gets genuinely close when your foreign income is modest, your UK salary is high, or you've already paid substantial foreign tax that you'd otherwise credit. That's exactly where running the numbers earns its keep.
One refinement: claims can be selective
This calculator models an all-or-nothing claim - shelter every foreign source, or none. In reality the allowances vanish the moment you claim anything, so once you've decided to claim it's normally right to shelter your largest foreign income and gains and you may leave tiny foreign sources outside. A tailored, source-by-source claim through Self Assessment can therefore do slightly better than the all-or-nothing figure here. Treat this tool as the strategic "is claiming worth it at all this year" answer, then let an adviser optimise the exact sources.
Frequently asked questions
What does claiming the FIG regime actually cost?
Can I claim on some foreign sources but not others?
Am I even eligible for FIG?
Does claiming use up a FIG year even if the gain is small?
This is educational information and an illustrative model, not regulated financial or tax advice. It uses simplified 2026/27 UK assumptions (GBP 12,570 personal allowance with taper above GBP 100,000, GBP 37,700 basic-rate band, GBP 3,000 CGT annual exempt amount, GBP 500 dividend allowance, England/Northern Ireland income-tax bands of 20/40/45%, dividend rates of 10.75/35.75/39.35% as increased from 6 April 2026, and capital gains rates of 18/24%). It models an all-or-nothing FIG claim, treats foreign income as non-dividend income unless entered as foreign dividends, assumes no UK capital gains, and does not handle Scottish rates, foreign losses, the remittance of pre-6 April 2025 pools (the Temporary Repatriation Facility), or treaty-specific pension treatment. FIG and repatriation decisions are high-stakes and the claim is irrevocable for the year - take advice from a suitably qualified adviser before acting.