Tax residence in Austria for Singapore taxpayers

Austria treats you as tax resident if you have a home there that you can use (Wohnsitz) or stay more than six months — even across two calendar years; a work contract for more than six months makes you resident from day one. Singapore decides your status for the calendar year by 183 days of presence or employment, normal residence of a citizen or PR, or IRAS's two- and three-year rules. If both countries claim you, Art. 4(2) of the Singapore–Austria Agreement of 2001 decides.

Check your status: Singapore and Austria

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

When Austria treats you as a tax resident

In Austria, as in Germany, the dwelling is decisive: a Wohnsitz makes you resident without counting days. Without a dwelling, more than six months of presence — even across the year-end — makes you resident.

The six months are counted consecutively, not within a calendar year; short trips out of Austria (holiday, business trip, trip home) only pause the count.

You have a home in Austria — this is a Wohnsitz, and under § 1 EStG 1988 you are resident in Austria and taxable on worldwide income, even if you are rarely there.
You have been in Austria for more than six months — this is a habitual abode, and you are resident in Austria retroactively from the first day.
An employment contract or work permit for more than six months — under BMF practice you are resident in Austria from the start of your stay, even if the work ended earlier.

When you are a non-resident

You have no home in Austria and your stay does not exceed six months — you are not resident in Austria. Wages for work performed in Austria are still taxed there.

Where the rules of Austria clash with Singapore tax rules

Collision: an Austrian home is enough for Austria, Singapore counts days and normal residence. For Austria a dwelling you can use at any time is a Wohnsitz even if you are rarely there (VwGH, Ra 2019/15/0145); the BFG held a person with a room and own bathroom in a shared house fully taxable in Austria although the centre of vital interests was abroad (RV/3100198/2020). Singapore decides residence for the calendar year: 183 days or more of presence or employment in Singapore, normal residence in Singapore as a citizen or Permanent Resident, or IRAS's administrative two- and three-year rules (s. 2(1) Income Tax Act 1947). A home in Austria does not affect the Singapore test. Art. 4(2) of the Singapore–Austria Agreement then decides: with homes in both countries, the centre of vital interests — as a rule where you live with your family (VwGH, Ra 2019/15/0160), assessed over several years rather than one (VwGH, Ra 2023/13/0186); with a home in neither, habitual abode; then nationality; then mutual agreement (Art. 24).
Collision: six months in Austria vs. Singapore's calendar-year count. Austria counts more than six months of presence even if they fall in two calendar years, and you are then resident from the first day. A stay from October to April makes you Austrian-resident although you spent fewer than 183 days in Austria in each calendar year. Singapore decides each calendar year as a whole: with 183 days in Singapore in that year, as a citizen or PR who normally lives in Singapore, or under IRAS's two- or three-year rules you remain a Singapore resident for the year. Art. 4(2) of the Agreement decides treaty residence.
Collision: a contract for more than six months makes you Austrian-resident from day one. With an employment contract or work permit for more than six months, Austria treats you as resident from the start of your stay. Singapore has no split year: if you spent 183 days or more in Singapore earlier in the same calendar year — for example when you move in October — or IRAS's two- or three-year rules apply, you are a Singapore resident for the whole of that year. Art. 4(2) of the Singapore–Austria Agreement decides treaty residence.

What else to know

How Singapore relieves double taxation of income from Austria. If Singapore is your state of residence, Austria may still tax Austrian-source income as the Agreement allows — e.g. pay for work in Austria beyond the limits of Art. 15(2), or rent from Austrian property. Subject to its own law, Singapore credits the Austrian tax against Singapore tax on that income (Art. 22(2)). Foreign-sourced income received in Singapore by a resident individual is generally exempt (s. 13(7A)), so in practice the Austrian tax is not credited but stays as the final tax. This Agreement has no remittance clause. If the taxation does not follow the Agreement, you can request a mutual agreement procedure within three years of the first notification (Art. 24).
Working in Austria while not Austrian-resident: 183 days in any twelve months. A non-resident is taxed in Austria on wages for work performed in Austria (§ 98(1) no. 4 EStG 1988), unless all conditions of Art. 15(2) of the Singapore–Austria Agreement are met: no more than 183 days in Austria in any twelve-month period commencing or ending in the calendar year concerned, an employer that is not an Austrian resident, and pay not borne by its Austrian permanent establishment or fixed base. Fees for independent work may be taxed in Austria only if you are there for more than 183 days in such a twelve-month period or have a fixed base there (Art. 14(1)).
Second home in Austria. If your centre of vital interests has been outside Austria (for example in Singapore) for more than five calendar years, an Austrian holiday home does not make you resident in years in which you use it on no more than 70 days and keep a log of the days.
Inbound relief for researchers (Zuzugsbegünstigung). Scientists and researchers whose move to Austria serves science and research can apply for a 30 % flat allowance on income from scientific work for five years; scientists, researchers, artists and athletes can apply to remove the extra tax burden caused by the move. The application must reach the Finanzamt Österreich within six months of moving and requires moving your centre of vital interests to Austria. The BMF sets no nationality condition. The allowance reduces Austrian tax only.
Moving from Austria to Singapore: exit taxation of capital assets. If you move from Austria to Singapore and Austria thereby loses its right to tax your capital assets (shares and other holdings, fund units, bonds, derivatives, crypto-assets), the increase in value up to the move is treated as realised and taxed at 27.5% — with no minimum holding. As Singapore is not an EU/EEA State, the tax is due immediately. Under the Agreement gains from a later sale of such assets are generally taxable only in the State of residence (Art. 13(5)); for unlisted shares deriving at least three-quarters of their value from Austrian immovable property Austria may also tax (Art. 13(2)). Declare the increase in value in your last Austrian return.
Pensions: occupational pensions only in the State of residence, government pensions in the paying State. Pensions and similar remuneration for past employment are taxable only in your State of residence (Art. 18). The Agreement has no separate rule for statutory social insurance pensions: where a benefit is not paid for past employment it falls under Art. 21, and the State where it arises may also tax it (Art. 21(3)). Government pensions are taxable only in the paying State, unless you are a resident and a national of the other State (Art. 19(2)).
Social security: no Austria–Singapore agreement. Austria has no social security agreement with Singapore; Singapore is not on the Sozialministerium's overview. Insurance periods are therefore not added together, and during a secondment you may be liable to contribute in both countries. The tax treaty does not cover social security contributions — clarify your position with your employer and the Austrian insurance institution before a posting.
Treaty residence in Austria: certificate for Singapore payers and treaty rates. If the Agreement makes Austria your State of residence, Singapore may tax only Singapore-source income within the treaty limits: interest at most 5% and royalties at most 5%, with certain interest (to the Government, on export-promotion loans, between banks) exempt; dividends of Singapore companies are not taxed under the one-tier system. Give the Singapore payer a certificate of residence confirmed by your Austrian tax office (form ZS-AD); IRAS requires the payer to obtain it.

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 Republic of Austria for the avoidance of double taxation and the prevention of fiscal evasion with respect to taxes on income (signed in Austria on 30 November 2001), with Protocol, as amended by the Protocol of 15 September 2009 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 Austria

Wohnsitz: a home you can use at any time — enough for unlimited tax liability
gewöhnlicher Aufenthalt: habitual abode — more than six months' stay
unbeschränkte Steuerpflicht: unlimited tax liability on worldwide income
Zweitwohnsitzverordnung: second-home rule: up to 70 days of use with the centre of interests abroad
Zuzugsbegünstigung: inbound relief for researchers, scientists, artists and athletes
Ansässigkeitsbescheinigung (ZS-AD): Austrian certificate of residence for treaty purposes

Questions

Which treaty applies between Singapore and Austria?

The Agreement of 30 November 2001, in force since 22 October 2002 and applying from 2003, amended in 2009 (exchange of information only) and modified by the MLI. Art. 4(2) resolves dual residence: permanent home, centre of vital interests, habitual abode, nationality, then mutual agreement.

How many days can I work in Austria before Austria taxes my salary?

Under Art. 15(2) Austria cannot tax it if you are there no more than 183 days in any twelve-month period starting or ending in the calendar year, the employer is not Austrian-resident and no Austrian permanent establishment or fixed base bears the pay. An Austrian home or a contract for more than six months makes you Austrian-resident anyway.

What happens to my shares if I move from Austria to Singapore?

Austria treats the increase in value of shares, fund units, bonds and crypto-assets as realised and taxes it at 27.5%; as Singapore is outside the EU/EEA, the tax is due immediately. Later gains are generally taxable only in your State of residence (Art. 13(5)).

Sources

Legislation and official guidance

§ 1(2)–(3) EStG 1988 — Persons with a domicile (Wohnsitz) or habitual abode in Austria have unlimited tax liability (worldwide income); others are taxed only on Austrian-source income (§ 98).
§ 26 BAO — A Wohnsitz is a dwelling kept under circumstances indicating an intention to retain and use it. Habitual abode means presence that is not merely temporary; more than six months in Austria always creates it, including for the first six months.
BMF: Persönliche Steuerpflicht (2026) — For a Wohnsitz the dwelling must be used at least repeatedly; after six months of presence, unlimited liability applies retroactively.
LStR 2002 para. 3 (version of 04.12.2024) — A Wohnsitz means the ability to use a dwelling for oneself at any time; registration is only an indication; a sleeping place shared with others and provided by the employer does not create a Wohnsitz.
LStR 2002 para. 4 — With a work permit or employment contract for more than six months, a habitual abode and unlimited liability exist from the first day; this continues even if the work ends earlier.
LStR 2002 para. 5 (version of 15.12.2023) — More than six months of presence gives unlimited liability from the first day, even across the year-end; short trips abroad (holiday, business trips, trips home) suspend the count and are not included, but do not reset it.
§ 98(1) no. 4 EStG 1988 — A non-resident is taxed on employment income for work performed or used (verwertet) in Austria.
s. 2(1) Income Tax Act 1947 (definition of «resident in Singapore», para (a)) — An individual is resident in Singapore if, in the year preceding the year of assessment, he or she resides in Singapore except for such temporary absences as may be reasonable and not inconsistent with a claim to be resident; also resident is a person who in that year was physically present or exercised employment in Singapore (other than as a company director) for 183 days or more.
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) Singapore–Austria Agreement (2001) — A dual-resident individual is deemed to be a resident only 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); if that State cannot be determined, or if he has no permanent home in either State, of the State in which he has an habitual abode; if he has an habitual abode in both States or in neither, of the State of which he is a national; if he is a national of both States or of neither, the competent authorities settle the question by mutual agreement. Not modified by the MLI.
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. 22 Singapore–Austria Agreement (2001) — Austria (para. 1): income of a resident of Austria that may be taxed in Singapore under the Agreement is exempt (a), but may be taken into account in calculating tax on the remaining income (d); for income under Arts. 10, 11, 12, 13(2) and 21 Austria credits the Singapore tax, up to the Austrian tax attributable to that income (b); income of a typical silent partner is also relieved by credit (Protocol, para. 2). Singapore (para. 2): subject to its law on foreign tax credit, Singapore credits the Austrian tax paid on income from Austria that Austria may tax under the Agreement. The Agreement has no remittance clause.
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.
Art. 24 Singapore–Austria Agreement (mutual agreement procedure) — A person who considers that the actions of one or both States result in taxation not in accordance with the Agreement may present the case to the competent authority of the State of which he is a resident within three years from the first notification of the action; the MLI adds arbitration.
Art. 15(2) Singapore–Austria Agreement (2001) — Remuneration of a resident of one State for employment exercised in the other State is taxable only in the first State if the recipient is present in the other State for not more than 183 days in aggregate in any twelve-month period commencing or ending in the calendar year concerned, the remuneration is paid by or on behalf of an employer who is not a resident of the other State, and it is not borne by a permanent establishment or fixed base of the employer in the other State.
Art. 14(1) Singapore–Austria Agreement (2001) — Income from professional services or other independent activities may also be taxed in the other State if the person is present there for more than 183 days in aggregate in any twelve-month period commencing or ending in the calendar year concerned, or has a fixed base regularly available there — only as far as the income is attributable to the work done there.
Zweitwohnsitzverordnung (BGBl. II No. 528/2003) — If the centre of vital interests has been abroad for more than five calendar years, an Austrian dwelling is a Wohnsitz only in years in which it is used on more than 70 days; a log of days must be kept.
§ 103 EStG 1988; BMF: Zuzugsbegünstigung — Scientists and researchers moving to Austria in the interest of science and research may apply for a flat allowance of 30 % of income from scientific work for five years (§ 103(1a)); scientists, researchers, artists and athletes may apply for removal of the additional tax burden caused by the move. Application to the Finanzamt Österreich within six months of moving (it may be filed before). The move requires shifting the centre of vital interests to an Austrian residence. The BMF page sets no nationality condition.
§ 27 Abs. 6 Z 1 EStG 1988; § 27a Abs. 1 Z 2 EStG 1988; § 6 Z 6 EStG 1988 — If a move restricts Austria's right to tax, the increase in value of capital assets (shares, fund units, bonds, derivatives, crypto-assets) up to the move is treated as realised and taxed at 27.5% — with no minimum holding and no minimum period of residence. On a move to an EU/EEA State the tax on shares, fund units, bonds and derivatives is assessed on application only on actual sale (lit. a); for crypto-assets only payment in instalments can be applied for (lit. d with § 6 no. 6 lit. c and d); on a move to other States it is due immediately. Business assets: § 6 no. 6.
Art. 13(2) and (5) Singapore–Austria Agreement (2001) — Gains from the alienation of unlisted shares deriving at least three-quarters of their value from immovable property in the other State may also be taxed in that State (para. 2); gains from other property not mentioned are taxable only in the State of residence of the alienator (para. 5).
Arts. 18, 19 and 21(3) Singapore–Austria Agreement (2001) — Art. 18: subject to Art. 19(2), pensions and similar remuneration paid to a resident of a State for past employment are taxable only in that State. Art. 19(2): government pensions are taxable only in the paying State, and in the other State only if the recipient is a resident and a national of that State. Art. 21(3): income not dealt with in the other articles and arising in the other State may also be taxed in that State. The Agreement has no separate rule for statutory social insurance pensions.
Sozialministerium — overview of agreements on social security (as at 3 Aug 2026) — Austria has bilateral agreements on social security with 21 States outside the EU and EEA, among them Australia, Brazil, Canada/Québec, Japan, Korea, Türkiye and the USA; Singapore is not listed.
Arts. 10(2), 11(2)–(3), 12(2) Singapore–Austria Agreement (2001) — Tax in the source State on dividends at most 10% (dividends to a company holding at least 10% only in the State of residence); on interest at most 5%; on royalties at most 5%; interest paid to the other Government, on export-promotion loans of Oesterreichische Kontrollbank or a similar Singapore public body, and between banks is exempt in the source State.
IRAS — gains from the sale of property, shares and financial instruments (updated 27 February 2026); dividends (updated 27 February 2026) — Gains from selling property and shares are generally not taxed as capital gains unless the sale amounts to trading (frequent transactions, a profit-seeking motive). Dividends of Singapore companies under the one-tier system are not taxed; foreign dividends received in Singapore by a resident are generally not taxed either (except those received through a partnership in Singapore).
BMF: form ZS-AD (certificate of residence) — Certificate of residence for treaty purposes: you state the treaty country and the income for which relief is needed and file the form in three originals with the tax office (for you, for the foreign authority or payer, for the Austrian tax administration); the tax office confirms residence in section III.
IRAS — «Claim of relief under the DTA» (withholding tax, updated 8 January 2026) — To apply a reduced treaty rate or an exemption, the Singapore payer obtains a certificate of residence of the non-resident payee from the other state's tax authority (in English or with an English translation, stating residence for treaty purposes and the years covered); non-resident professionals also sign Form IR586. The payer submits the certificate to IRAS by 31 March of the following year, otherwise the relief may be withdrawn.
Art. 4(2)(a) of the Singapore–Austria Agreement — A dual-resident individual is deemed to be a resident only 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–Austria 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 only of the State in which he has an habitual abode.
Art. 4(2)(c), (d) of the Singapore–Austria 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

Verwaltungsgerichtshof (Austria), Ra 2019/15/0145, 05/03/2020 — A Wohnsitz is the legal and factual ability to use a habitable dwelling at any time; how often it is actually used does not matter and no minimum number of nights is required (a BFG decision that required one was set aside).
Verwaltungsgerichtshof (Austria), Ra 2015/15/0066, 27/11/2017 — For a Wohnsitz under § 26 BAO actual control over the dwelling is decisive; police registration (ZMR) and whether rent is paid are not decisive. A VAT case (export exemption for a foreign buyer), but the Wohnsitz test is the same.
Bundesfinanzgericht (Austria), RV/3100198/2020, 09/06/2022 — A room with its own bathroom in a shared house is a dwelling: unlimited tax liability in Austria, although the centre of vital interests was in the United States.

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.

Check your status