Tax residency and a Ukrainian ФОП abroad: the 183-day myth and CRS

Why this suddenly became a practical question

Tax residency used to feel abstract. It now decides very concrete amounts: 0% or 23% inheritance tax, the rate on a property sale, whether foreign income must be declared in Ukraine. And since September 2024 the Ukrainian tax service automatically receives data on Ukrainians' foreign accounts — so any gap between how you see yourself and what the tax authority sees has become visible.

183 days is not the first test, it is the third

The most common mistake is: "I have been in Poland for over half a year, so I am no longer a Ukrainian resident." Art. 14.1.213 of the Tax Code sets out a sequence of tests, each applied only if the previous one gives no answer:

1. Place of residence in Ukraine — housing available for permanent living (owned or on a long lease).
2. If there is housing in both countries — the centre of vital interests: where the family, the main home, the main source of income and any registered business are.
3. Only if that still gives no answer — presence for 183 days or more in the year.
4. If it remains unresolved — citizenship.

So a flat in Kyiv, a spouse and children there, or an open ФОП will outweigh any number of days in Berlin. The 183-day rule is a fallback, not the main test.

When both countries claim you as a resident

This happens often: the host country counts days while Ukraine looks at the centre of interests. The tie-breaker in the double-taxation convention between the two states then applies — the same sequence: permanent home → centre of vital interests → habitual abode → nationality. Under art. 3.2 of the Tax Code, treaty rules take priority over the Code.

In practice this means a residency dispute is won with documents (a lease, registration, a residency certificate, income statements), not with arguments.

A Ukrainian ФОП while abroad

This is the most underestimated knot:

• An unclosed ФОП is a strong argument for Ukrainian residency. The tax service explicitly treats a registered business as an economic link to the country.
• Non-residents cannot be single-tax payers (art. 291.5 of the Tax Code). "I am a non-resident but I am keeping my simplified-system ФОП" is therefore a contradictory position: either you are a resident, or the ФОП has to go.
• The 5% single tax and 1% military levy in Ukraine do not settle your obligations in the country you live in. Many jurisdictions consider the activity to be effectively carried out from their territory and charge their own self-employment tax and social contributions; in clear-cut cases a permanent establishment question arises.
• Unified social contributions remain payable for as long as the ФОП is open, wherever you physically are.

What the tax authority already sees: CRS

CRS is the global standard for the automatic exchange of financial account information. Ukraine joined the CRS Multilateral Competent Authority Agreement on 19 August 2022; the first exchange took place on 30 September 2024 for the reporting period from 1 July to 31 December 2023. Exchanges now happen every September, the circle of partner countries has grown past a hundred jurisdictions, and coverage has extended to accounts opened before 1 July 2023.

The tax service receives account balances and amounts credited, and cross-checks them against filed declarations. The mirror also holds: data on non-residents' accounts in Ukrainian banks goes to their countries.

The most important practical consequence concerns self-certification — the form in which a foreign bank asks for your tax residency. Name Ukraine and the data goes to Ukraine; name your country of residence and it goes there, and that form becomes evidence in any later dispute about your status. Answer consistently with your real position and with what you put in your tax returns.

If you are genuinely changing residency

Status does not change by declaration — it changes through facts you can show:

• moving the centre of vital interests: family, main home, main source of income;
• a tax residency certificate from your country of residence;
• changing your Ukrainian tax address, closing or restructuring the ФОП;
• reviewing Ukrainian-sourced income — rent, dividends, bank interest: for a non-resident these remain taxable in Ukraine as Ukrainian-sourced income, but at different rates.

This is precisely the case where advice from a tax adviser in both countries costs less than the consequences of getting it wrong: double taxation, assessments with penalty interest, or losing the preferential inheritance rate.

Legal basis

• Tax Code of Ukraine: art. 14.1.213 (resident status), art. 3.2 (priority of international treaties), art. 39-3 (implementation of the CRS reporting standard), art. 291.5 (limits of the simplified system), art. 170 (taxation of particular kinds of income);
• Multilateral Competent Authority Agreement on the Automatic Exchange of Financial Account Information;
• the double-taxation conventions in force — the list is published by the Ministry of Finance of Ukraine.