Tax residence in the United Kingdom for Singapore taxpayers

The UK decides residence under the Statutory Residence Test for its own tax year (6 April – 5 April): automatic tests first, then UK ties combined with UK days. Singapore decides residence for the calendar year that is the basis period of the next Year of Assessment, so both countries can claim you for the same months. Art. 4(2) of the Singapore–United Kingdom Agreement then decides, and Art. 23 relieves double tax by credit — although Singapore generally does not tax foreign-sourced income of resident individuals at all.

Check your status: Singapore and United Kingdom

Free, no sign-up, about 3 minutes. Conclusion under Singapore's Income Tax Act 1947, compared with the law of the United Kingdom and the tax treaty (DTA).

When United Kingdom treats you as a tax resident

The UK determines residence under its own Statutory Residence Test (SRT) and for its own tax year — 6 April to 5 April — not the calendar year that Singapore uses as the basis period for the Year of Assessment.

You spent 183 days or more in the UK in the UK tax year — you are automatically UK resident.
Your only home is in the UK (no home abroad, including in Singapore, where you spent 30+ days) — under the home test you are UK resident.
Full-time work in the UK for a 365-day period — you are UK resident.
Your UK days combined with your UK ties reach the sufficient ties threshold — you are UK resident even with fewer than 183 days.

When you are a non-resident

You spent fewer days in the UK than any UK test requires (16 or 46) — you are automatically not UK resident.
Full-time work abroad and fewer than 91 days in the UK — under the automatic overseas test you are not UK resident.
Under the sufficient ties test you have too few UK ties for your number of days — you are not UK resident.

Where the rules of the United Kingdom clash with Singapore tax rules

Collision: the UK treats you as resident with fewer than 183 days. You are resident in Singapore — with 183 days in the calendar year, as a citizen or permanent resident who normally resides there, or as a foreign employee under the IRAS two- or three-year rules — and the SRT makes you UK resident with fewer than 183 UK days, through the home test, full-time work in the UK or the sufficient ties test. Both laws then claim you. Art. 4(2) of the Singapore–United Kingdom Agreement decides: permanent home; with a home in both countries, the centre of vital interests; if that cannot be determined, or you have a permanent home in neither, habitual abode; then nationality; then mutual agreement.
Collision: 183 days in the UK while still resident in Singapore. 183 days in the UK tax year make you automatically UK resident. Because the UK year runs from 6 April and Singapore looks at the calendar year, the same months can count for both — typically in the year you move, or if you remain resident in Singapore under the IRAS two- or three-year rules for a foreign employee. Art. 4(2) of the Agreement then decides which country is your state of residence.
Collision: after moving back to Singapore the UK may still treat you as resident. If you were UK resident in any of the three previous UK tax years, 16 days and 4 ties (or 46 days and 3 ties) are enough to remain UK resident. If you are also resident in Singapore for the same period, Art. 4(2) of the Agreement decides; a home kept in the UK weighs in the first step.

What else to know

Different years: the calendar year in Singapore, 6 April in the UK. Singapore decides your tax residence for a calendar year — the basis period of the following Year of Assessment — while the UK tax year runs from 6 April to 5 April. Each country counts your days over its own year: Singapore's 183-day test counts days of presence or employment in Singapore in the calendar year, the SRT counts days in the UK in the UK tax year. The 183-day limit for salary in Art. 15(2)(a) of the Singapore–United Kingdom Agreement is counted in any twelve-month period commencing or ending in the fiscal year concerned.
How Singapore relieves double taxation of UK income. If Singapore is your state of residence, it generally does not tax your UK income at all: foreign-sourced income not brought into Singapore is outside the charge (s. 10(1) ITA 1947), and foreign-sourced income received in Singapore by a resident individual is exempt (s. 13(7A)), except income received through a partnership in Singapore. Where UK income is taxable in Singapore, the UK tax is credited — at most the Singapore tax on that income (Art. 23(2)). If the UK is your state of residence, the UK credits Singapore tax on income from Singapore (Art. 23(1)). The Agreement no longer has a remittance clause, so UK treaty relief does not depend on bringing the income into Singapore.
Working in the UK while resident in Singapore: the 183-day rule (Art. 15(2)). Salary is taxed where you physically work. If Singapore is your treaty residence, the UK does not tax pay for UK work only if all four conditions of Art. 15(2) are met: you are in the UK for not more than 183 days in any twelve-month period commencing or ending in the fiscal year concerned; the work is done for or on behalf of a person resident in Singapore; the pay is subject to tax in Singapore; and it is not directly deductible from the profits of a UK permanent establishment or fixed base. The third condition matters because Singapore generally does not tax foreign-sourced income of resident individuals: if your pay for UK work is not taxed in Singapore, the UK exemption may not apply.
Year of arrival or departure: the UK may split its year, Singapore does not. Under specific conditions (moving your home, starting or ending full-time work) the UK tax year is split and you are taxed as a non-resident for the overseas part. Singapore has no split year: your status is decided for the whole calendar year and applies to the following Year of Assessment. Where both countries treat you as resident for part of a year, the Agreement applies to that period.
FIG regime for new UK residents. If you were not UK resident for at least 10 years before arriving, you can claim the FIG regime for up to the first 4 tax years of UK residence: qualifying foreign income and gains — including rent, interest and gains from Singapore — are not taxed in the UK, but you lose the income tax and CGT tax-free allowances, and foreign employment income is not covered. Singapore still taxes Singapore-source income under its own rules; with no UK tax on that income, there is nothing to credit.

How dual residence is resolved

If both countries treat you as a resident, Art. 4(2) of the treaty applies: Agreement between the Government of the Republic of Singapore and the Government of the United Kingdom of Great Britain and Northern Ireland for the avoidance of double taxation and the prevention of fiscal evasion with respect to taxes on income and capital gains (signed at Singapore on 12 February 1997), as amended by the Protocols of 24 August 2009 and 15 February 2012 and modified by the MLI. The tests are applied in order — permanent home, centre of vital interests, habitual abode, nationality, and finally mutual agreement between the tax authorities.

The treaty in detail: income, rates, the 183-day rule →

Terms you will come across in the United Kingdom

Statutory Residence Test (SRT): the UK statutory test of tax residence: automatic overseas and UK tests, then sufficient ties
UK tax year: 6 April to 5 April — different from Singapore's calendar-year basis period
UK ties: family, accommodation, work, 90-day and country ties counted under the sufficient ties test
split year treatment: the UK tax year split into a UK part and an overseas part in the year of arrival or departure
FIG regime: 4-year relief for foreign income and gains of new UK residents after 10 years abroad (from 6 April 2025)
Self Assessment: the UK tax return on which UK residents report worldwide income and claim the FIG regime

Questions

I spent fewer than 183 days in the UK — can I still be UK resident?

Yes. Under the SRT the home test, full-time work in the UK or enough UK ties combined with your UK days can make you resident with fewer than 183 days. If Singapore also treats you as resident, Art. 4(2) of the Singapore–United Kingdom Agreement decides.

Does the UK tax my salary for a short UK assignment if I remain resident in Singapore?

Not if all conditions of Art. 15(2) are met: not more than 183 days in the UK in any twelve-month period commencing or ending in the fiscal year concerned, work for or on behalf of a Singapore resident, pay subject to tax in Singapore, and pay not deductible from the profits of a UK permanent establishment.

Does Singapore tax my UK income?

Generally not: foreign-sourced income not brought into Singapore is outside the charge, and foreign-sourced income received in Singapore by a resident individual is exempt (ss. 10(1), 13(7A) ITA 1947). Where it is taxable, the UK tax is credited under Art. 23(2).

Sources

Legislation and official guidance

Finance Act 2013, Sch. 45 (Statutory Residence Test) — You are UK resident if you meet at least one automatic UK test and none of the automatic overseas tests, or if you meet the sufficient ties test. The automatic overseas tests take priority.
Income Tax Act 2007, s. 4(3) — The UK tax year runs from 6 April to the following 5 April.
HMRC RDR3 — Statutory Residence Test guidance — HMRC's official guidance on the Statutory Residence Test.
Sch. 45, paras 12–14 — Automatically non-resident: fewer than 16 days in the UK (if UK resident in any of the 3 previous tax years), fewer than 46 days (if not), or full-time work abroad with fewer than 91 days in the UK and fewer than 31 UK work days.
Sch. 45, paras 22–23 — A day counts if you are in the UK at midnight; transit days do not count; up to 60 days spent in the UK because of exceptional circumstances (war, natural disaster) can be disregarded.
Sch. 45, para 7 — Automatically UK resident: at least 183 days in the UK in the tax year.
Sch. 45, paras 8, 25 — Home test: a UK home where you spent at least 30 days, and no overseas home where you spent at least 30 days (assessed within a 91-day period).
Sch. 45, para 9 — Full-time work in the UK for a 365-day period: on average at least 35 hours a week, with more than 75% of working days in the UK.
Sch. 45, paras 17–19, 31–38 — Sufficient ties test: arrivers — 46–90 days and 4 ties, 91–120 days and ≥3, ≥121 days and ≥2; leavers (UK resident in 1 of the 3 previous years) — 16–45 days and ≥4, 46–90 and ≥3, 91–120 and ≥2, ≥121 and ≥1. Ties: family, accommodation, work, 90-day, country.
s. 2(1) ITA 1947 (definitions of «year of assessment» and «basis period»); IRAS — preceding-year basis of assessment — Tax is charged for a year of assessment (YA) on the income of the preceding calendar year: YA 2027 covers income from 1 January to 31 December 2026. Residence is determined for the same preceding calendar year, so the selected year 2026 is the basis year for YA 2027.
Art. 15(2) of the Singapore–United Kingdom Agreement — Remuneration of a resident of one State for employment exercised in the other State is taxable only in the first State if (a) the recipient is present in the other State for a period or periods not exceeding in the aggregate 183 days in any twelve-month period commencing or ending in the fiscal year concerned, (b) the services are performed for or on behalf of a person resident of the first State, (c) the remuneration is subject to tax in the first State, and (d) the remuneration is not directly deductible from the profits of a permanent establishment or fixed base in the other State.
IRAS — «Working out my tax residency» (updated 12 May 2026) — A Singapore citizen or permanent resident who normally resides in Singapore, except for temporary absences, is a tax resident. A foreigner is resident for a year of assessment if, in the preceding calendar year, he or she stayed or worked in Singapore for at least 183 days, or stays or works in Singapore continuously for three consecutive years (then for all three years, even with fewer than 183 days in the first and third). A foreign employee whose employment spans two calendar years is resident for both years if the period of employment, together with the stay immediately before and after it, is a continuous period of at least 183 days (not for company directors, public entertainers and professionals). Days include weekends and public holidays, and temporary absences (leave abroad, business trips) connected with the employment in Singapore.
Art. 4(2) of the Singapore–United Kingdom Agreement — Dual-resident individual: (a) resident of the State in which he has a permanent home available to him; if he has a permanent home in both States, of the State with which his personal and economic relations are closer (centre of vital interests); (b) if the centre of vital interests cannot be determined, or he has no permanent home available in either State, of the State in which he has an habitual abode; (c) habitual abode in both States or in neither — the State of which he is a national; (d) national of both States or of neither — the competent authorities settle the question by mutual agreement. The MLI did not change Art. 4(2).
Art. 23(1)–(2) (as replaced by the 2012 Protocol) of the Singapore–United Kingdom Agreement — United Kingdom (Art. 23(1)): credit for Singapore tax against UK tax. Singapore (Art. 23(2)): credit for UK tax against Singapore tax, or exemption where the conditions of the Singapore Income Tax Act for foreign-sourced income are met. The limitation-of-relief (remittance basis) article, Art. 24, was deleted by the 2012 Protocol.
s. 10(1) ITA 1947 — Income tax is payable on the income of any person accruing in or derived from Singapore or received in Singapore from outside Singapore — including gains or profits from any trade, business, profession or vocation, from any employment, dividends, interest, rents, royalties and pensions.
s. 13(7A) ITA 1947 — Exempt is income from sources outside Singapore received in Singapore: (a) by a non-resident individual; (b) from 1 January 2004 — by a resident individual, where the Comptroller is satisfied that the exemption is beneficial to him or her; the exemption does not cover such income received through a partnership in Singapore.
IRAS — «Claiming foreign tax credit» — Where foreign income is taxable in Singapore and foreign tax has been paid on it, a resident can claim a foreign tax credit in the return; the credit is the lower of the foreign tax paid and the Singapore tax payable on that income.
Sch. 45, Part 3 (paras 44–51); HMRC RFIG21010 — In the year of arrival or departure the UK tax year may, under specific conditions, be split: the overseas part is taxed as for a non-resident. It is not elective — it applies automatically if the conditions are met.
ITA 1947, s. 2(1) («resident in Singapore»), 62(4)–(5), 73(1); IRAS — «Working out my tax residency» (updated 12 May 2026) — Status is set for the whole calendar year and applies to the following Year of Assessment. A foreigner arriving is resident for that year with 183 days of presence or employment, or under the two-year or three-year administrative rules; a holder of a work pass valid for at least one year is provisionally treated as resident, and the status is reviewed at tax clearance. A person chargeable to tax notifies IRAS within one month of arrival.
Finance Act 2025, s. 37; ITTOIA 2005 ss. 845A–845J; GOV.UK «Check if you can claim the 4-year foreign income and gains regime» (published 6 April 2025) — From 6 April 2025 the 4-year foreign income and gains (FIG) regime replaced the remittance basis. Available for at most 4 consecutive tax years from the start of UK residence, after at least 10 years of non-UK residence; claimed on the Self Assessment return; claimants lose the income tax and CGT tax-free allowances. Foreign earnings and specific employment income are not eligible.
IRAS — rates for non-residents (updated 27 April 2026); s. 13(6)–(7) ITA 1947 — A non-resident pays tax only on income received in or derived from Singapore, without personal reliefs: employment income — 15% or the resident rates if that gives more tax; director's fees, consultants' fees, rental income, pensions and other income — 24%. Pay for employment in Singapore of no more than 60 days in a year is exempt (s. 13(6)), except directors' remuneration and income of public entertainers (s. 13(7)).
Art. 4(2)(a) of the Singapore–United Kingdom Agreement — A dual-resident individual is deemed to be a resident of the State in which he has a permanent home available to him; if he has a permanent home available in both States, of the State with which his personal and economic relations are closer (centre of vital interests).
Art. 4(2)(b) of the Singapore–United Kingdom Agreement — If the State of the centre of vital interests cannot be determined, or if he has no permanent home available in either State, he is deemed to be a resident of the State in which he has an habitual abode.
Art. 4(2)(c), (d) of the Singapore–United Kingdom Agreement — If he has an habitual abode in both States or in neither, he is deemed to be a resident only of the State of which he is a national (c); if he is a national of both States or of neither, the competent authorities settle the question by mutual agreement (d).

Case law

Court of Appeal (England and Wales), A Taxpayer v HMRC [2025] EWCA Civ 106, 13/02/2025 — Moral obligations (caring for the children of a seriously ill relative) can be taken into account in deciding whether circumstances are exceptional for disregarding days under para 22(4); a person with 50 days was held not UK resident against a threshold of 45.
First-tier Tribunal (Tax Chamber), Michael Parker v HMRC [2026] UKFTT 652 (TC), 01/05/2026 — Three days were treated as transit and one as exceptional circumstances; with 89 remaining UK days the taxpayer met the full-time work abroad test and was not UK resident.

Updated 10/11/2026. The result is for information only and is not tax or legal advice. IRAS, other tax authorities and courts may interpret the rules differently, including because of circumstances not covered here, and the law can change with each annual Budget. Consult a qualified adviser before making decisions.

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