Until you break UK residence, nothing changes
The UK taxes residents on their worldwide income, so a move to Sweden only helps once you are non-resident under the Statutory Residence Test. The cleanest route is working full-time abroad, broadly an average of at least 35 hours a week, while keeping UK visits below 91 days with no more than 30 UK workdays. If you leave part-way through a tax year, split-year treatment can tax you as non-resident from your departure date. It is claimed on the SA109 pages of your Self Assessment return; the P85 does not do this for you.
What stays UK-taxable after you leave
Non-residents still pay UK tax on UK-source income. Rental profits fall under the Non-Resident Landlord Scheme, and gains on UK property must be reported and any tax paid within 60 days of completion, even where nothing is due. Pensions are this corridor's quirk: unlike many UK treaties, the 2015 UK-Sweden convention lets pensions be taxed in the country they arise in, so UK pensions generally stay UK-taxable, Sweden taxes them again as worldwide income, and double taxation is relieved by credit. Two longer tails matter as well: return within five years and the temporary non-residence rules can tax gains you realised abroad in your year of return, and since 6 April 2025 the residence-based inheritance tax rules can keep a long-term UK resident's worldwide estate in scope for up to 10 years after leaving, with no Swedish inheritance tax to credit because Sweden abolished its own.
The Swedish side
Sweden taxes residents on worldwide income: municipal tax averaging around 32% from the first krona, plus 20% state tax above SEK 643,000 for 2026, a combined top rate of broadly 52%. Capital is treated more gently, with a flat 30% on investment income, 22% on gains from selling a home, and the ISK account, which swaps tax on actual returns for a small notional annual charge, with the first SEK 300,000 tax free from 2026. Non-residents pay SINK, a flat final withholding tax of 22.5% for 2026, on Swedish employment income and Swedish-source pensions. You become taxable on worldwide income if you have your permanent home in Sweden or stay continuously for more than six months, so most movers are in from arrival. For the residence tests, the ISK mechanics and the full treaty position, see our guide to UK tax when moving to Sweden. Horizon handles the UK side of the move on a fixed fee agreed upfront, and a free clarity call at /book is the quickest way to find out what your exit should look like.