Singapore: how residence and citizenship work

Residence tests, reporting duties, social security, living base and citizenship for Singapore, with the official source for each.

Short answer

Singapore taxes income earned in Singapore. IRAS treats citizens and permanent residents who normally reside in Singapore as residents, and foreigners as residents when they stay or work there at least 183 days in the calendar year, with two- and three-year administrative concessions. IRAS states that foreign-sourced income received in Singapore by residents is generally exempt, except income received through Singapore partnerships.

Key facts

Tax basisMainly territorial
Tax yearCalendar year of income, assessed in the following Year of Assessment (preceding year basis)
Taxes citizens abroadNot as a general rule
Residence tests recorded4
RegionAsia

How Singapore decides tax residence

Each test is recorded separately with its own ID. Meeting or missing one test does not settle residence on its own.

SG-RES-01Ties testNot professionally reviewed

Citizens and permanent residents who normally reside

A Singapore Citizen or Singapore Permanent Resident who normally resides in Singapore, except for temporary absences, is treated as a tax resident.

Source: IRAS: Working out my tax residencyChecked: November 8, 2026
SG-RES-02Day count183 days ยท Calendar yearNot professionally reviewed

183-day test for foreigners

A foreigner who stayed or worked in Singapore for at least 183 days in the previous calendar year is a tax resident for that Year of Assessment. IRAS says days of employment include weekends and public holidays, and temporary absences incidental to the job still count. Foreigners with a work pass valid for at least one year are also treated as residents, but status is reviewed at tax clearance.

Source: IRAS: Working out my tax residencyDay method: Set in official guidanceChecked: November 8, 2026
SG-RES-03Day count183 days ยท Several yearsNot professionally reviewed

Two-year administrative concession

Where employment straddles two calendar years, a foreigner may be treated as resident for both years if the employment period plus physical presence immediately before and after it covers a continuous period of at least 183 days. IRAS excludes company directors, public entertainers and professionals from this concession.

Source: IRAS: Working out my tax residencyDay method: Set in official guidanceChecked: November 8, 2026
SG-RES-04PresumptionNot professionally reviewed

Three-year administrative concession

A foreigner who stays or works in Singapore continuously for three consecutive years is treated as resident for all three years, even if presence is under 183 days in the first and third years.

Source: IRAS: Working out my tax residencyDay method: not recordedChecked: November 8, 2026

Arriving, leaving and part years

Relates to SG-RES-02. When a non-citizen employee stops working, is posted overseas or leaves Singapore for more than three months, the employer must file Form IR21 at least one month before the last day and withhold monies due until IRAS clears the tax. IRAS may review residency at that point.

Reporting duties to check

  • Tax clearance (Form IR21). Employers file Form IR21 for non-Singapore-citizen employees who cease employment, are posted overseas or leave for more than three months, and withhold payments due to the employee from the date they learn of the departure. Source

Living base

Foreigners usually live in Singapore on a work pass from the Ministry of Manpower or with permanent residence from the Immigration and Checkpoints Authority. IRAS links some residency treatment to work pass length, but it reviews actual presence at tax clearance, so a pass does not settle tax residence.

How visas, permits and tax residence differ

Citizenship

Singapore citizenship is administered by the Immigration and Checkpoints Authority. Routes, residence periods and the position on dual citizenship are not stated here; check the Authority's current guidance.

Read the citizenship guide

Questions to take to a professional

  1. How many days did I stay or work in Singapore in each calendar year, and which days count?
  2. Does the two-year or three-year concession apply to my pattern of work and travel?
  3. Is any of my overseas income taxable in Singapore because it is incidental to Singapore employment or received through a partnership?
  4. If I work wholly outside Singapore, is any of my employment income sourced in Singapore?
  5. What happens at tax clearance if I leave before meeting 183 days?
  6. How would a tax treaty tie-breaker apply if another country also treats me as resident?

Official authorities

Sources

Other countries in Asia

Countries covered
Singapore
Sources
3 sources listed above
Tax year
Current rules as checked
Review
Not professionally reviewed
Sources checked November 8, 2026