The short answer: Greece's flat regimes only work after a clean UK exit
Greece taxes its residents on worldwide income at rates of up to 44%, but it has built two deliberate exceptions for people who move their tax residence there. Under Article 5A of the Greek Income Tax Code, a high-net-worth incomer can pay a lump sum of €100,000 a year that settles Greek tax on all foreign income, for up to 15 years. Under Article 5B, a foreign pensioner can pay a flat 7% on all foreign-source income, again for up to 15 years. Both are statutory, in active use and open to arrivals from the UK.
But the deciding factor for your UK bill is not the Greek regime you join. It is the UK Statutory Residence Test (RDR3, GOV.UK), which decides, year by year, whether the UK can still tax your worldwide income. Three things have to line up: you break UK residence under the SRT, you claim split-year treatment where you leave mid-year, and you deal properly with what stays UK-taxable regardless. Get those right and the Greek flat charge does what the brochure says; miss one and you can be resident in both countries with a 1953 treaty offering little help.
Breaking UK residence: the Statutory Residence Test
The SRT is applied in order: first the automatic overseas tests (which make you non-resident), then the automatic UK tests (which make you resident), then the sufficient ties test if neither is conclusive. For someone moving to Greece, the automatic overseas tests are the target.
- First automatic overseas test: you were UK resident in one or more of the previous three tax years and spend fewer than 16 days in the UK in the current year.
- Second automatic overseas test: you were not UK resident in any of the previous three tax years and spend fewer than 46 UK days.
- Third automatic overseas test (the usual route for working-age movers): you work full-time abroad across the tax year, broadly an average of at least 35 hours a week with no significant breaks, spend fewer than 91 days in the UK and work here on no more than 30 of those days.
Retirees moving for the 7% regime often cannot use the full-time-work route, so their position usually turns on the sufficient ties test, which combines UK day counts with the ties kept (family, accommodation, work, a 90-day prior-presence tie and, for recent leavers, a country tie). The more ties you keep, the fewer UK days you are allowed; in a first year out the practical limit can be low. Model your position with our SRT calculator at /tools/srt-calculator.
Split year, the P85 and your final tax return
Most people do not emigrate neatly on 6 April. Where the conditions are met, split-year treatment divides the tax year into a UK part (taxed on worldwide income) and an overseas part (taxed only on UK-source income), so income arising in Greece after the split date is outside UK income tax for that year. The common gateways for leavers are starting full-time work overseas and ceasing to have a UK home, each with its own timing conditions and UK day limits.
The admin is the same as for any departure. File a P85 (GOV.UK) if you are employed or have a pension, and a final Self Assessment return for your year of departure. Split-year treatment is claimed on the SA109 residence pages, not by the P85, and the SA109 cannot be filed through HMRC's own free online service, so you will generally need commercial software or an agent. Keep records of travel dates, work patterns and accommodation: the Greek 183-day and centre-of-life tests will look at the same facts.
What the UK keeps taxing after you go
Becoming non-resident does not switch off UK tax on UK-source income. And because Greece taxes residents on worldwide income unless a flat regime applies, the same item can sit in both nets. The table shows how the two systems treat the main items.
| Income or gain | UK position after you leave | Greece position |
|---|---|---|
| UK rental profits on a kept property | UK-taxable; [Non-Resident Landlord Scheme](/guides/non-resident-landlord-tax) withholding unless HMRC approves gross payment | Foreign-source: inside the 5A lump sum or the 5B 7%; otherwise taxed at normal rates |
| Gains on UK property | NRCGT: report and pay within [60 days](/guides/cgt-60-day-reporting-non-residents) of completion; 18% or 24% after the £3,000 annual exempt amount | Foreign-source: covered by the flat regimes; otherwise within Greek worldwide taxation |
| UK government service pensions | Generally remain UK-taxable wherever you live | Foreign-source for Greek purposes; take advice on the treaty interaction |
| Other UK pensions, dividends and interest | Position depends on the treaty and the disregarded-income rules; take advice | 7% flat under Article 5B; inside the lump sum under 5A; otherwise progressive rates |
| Salary for work physically done in Greece | Outside UK tax once residence is properly broken | Greek-source: progressive rates up to 44%; never covered by the flat regimes |
| Worldwide estate on death | IHT tail of up to 10 years for long-term UK residents | Greece levies its own inheritance tax, separate from the UK charge |
Three further UK rules deserve their own line. First, the temporary non-residence trap: if you were UK resident in at least four of the seven tax years before leaving and return within five years, gains and certain income realised while abroad can be taxed in your year of return. Second, the residence-based IHT rules that took effect on 6 April 2025: a long-term resident (UK resident in at least 10 of the previous 20 tax years) stays within UK inheritance tax on worldwide assets for a tail of up to 10 years after leaving. Third, voluntary National Insurance: most leavers should apply on form CF83 to keep paying Class 2 or Class 3 contributions and protect the State Pension cheaply.
Greece's standard tax system, verified
Greece treats you as tax resident when your physical presence exceeds 183 days in a 12-month period or when your centre of vital interests is there, and residents are taxed on worldwide income. The standard 2026 scale for employment and pension income, updated by the reform that took effect this year, runs 9% on the first €10,000, 20% to €20,000, 26% to €30,000, 34% to €40,000, 39% to €60,000 and 44% above that, with lower scales for taxpayers with children and for those under 30. Rental income is taxed on its own scale of 15% to 45%.
So Greece under standard rules is not a low-tax destination: without a special regime you swap UK worldwide taxation for Greek worldwide taxation at broadly comparable rates. The case for Greece rests on the two elective regimes below, which must be applied for on time.
The non-dom lump sum and the 7% pensioner regime
Article 5A is Greece's answer to the old Italian flat tax. You pay a lump sum of €100,000 per tax year, which exhausts Greek tax on all your foreign-source income, for a maximum of 15 tax years. Family members can be added for €20,000 each per year. To qualify you must not have been Greek tax resident in seven of the eight years before the move, and you must invest at least €500,000 in Greece (real estate, businesses or securities) within three years of applying. An €800,000 golden visa property can double as the qualifying investment, which is why the two are often paired.
Article 5B is the pensioner route. If you receive a foreign pension, have not been Greek tax resident in five of the six years before the move, and are arriving from a country with a tax cooperation agreement with Greece (the UK qualifies), you can elect to pay a flat 7% on your entire foreign-source income, not just the pension: foreign dividends, interest, rents and gains are all inside the 7%, for up to 15 years. The tax is paid in a single instalment each July. Two caveats: Greek-source income stays taxed at normal rates, and a UK government service pension generally remains taxable in the UK regardless.
Both elections have an annual 31 March application deadline in the year the regime is to begin, so departure and application need planning together. Horizon advises on the UK side and coordinates with a local adviser in the destination for local filings; the Greek figures above are verified against current professional summaries, but your Greek elections and returns belong with local counsel.
The golden visa under the 2026 rules
Greece kept its golden visa when Spain and Portugal retreated from theirs, but the 2024 reforms that apply in 2026 raised the price in the places people actually want to live. The permit runs for five years and is renewable while the investment is held, and it carries no minimum stay requirement, popular with buyers not yet ready to become Greek tax resident.
- €800,000 minimum property investment in Attica (including Athens), Thessaloniki, Mykonos, Santorini and islands with more than 3,100 inhabitants.
- €400,000 minimum in the rest of the country. For both standard tiers the investment must be a single residential property of at least 120 square metres.
- €250,000 still works anywhere in Greece for two special categories: properties converted from commercial to residential use, and listed buildings that the investor fully restores.
Check the current thresholds before committing: they have moved several times this decade. And a golden visa does not make you Greek tax resident, still less UK non-resident. The SRT and the Greek 183-day test decide the tax.
The 1953 treaty, and who the move genuinely suits
The UK and Greece do have a double taxation convention, but it is one of the oldest on the UK's books: it entered into force on 15 January 1954 and remains in force today (GOV.UK). Because it long predates the modern OECD Model, it lacks features UK leavers take for granted in newer treaties, including a modern tie-breaker for dual residents and a capital gains article. If you keep enough UK ties to stay UK resident while becoming Greek resident, the old treaty gives you far less protection than a modern one would, and double taxation has to be managed through domestic credit rules instead. A clean SRT exit is the fix.
Who does Greece genuinely suit? Retirees drawing non-government pensions and investment income are the clearest winners, and high-net-worth families with foreign income large relative to the €100,000 lump sum, who can commit €500,000 of investment, are the other natural fit. It suits people less well if their income will be earned by working physically in Greece (Greek-source, taxed at up to 44%), if they expect to return to the UK within five years, or if their aim is quick IHT protection, because the UK tail can run for a decade. Model the whole move with our relocation tool at /tools/relocation.
