Does exactly 183 days count in the Czech Republic?

Yes. The Czech test is 183 or more days in the calendar year, so exactly 183 days is enough to make you a tax resident. This differs from rules elsewhere that require more than 183 days.

Do study or medical stays count toward the Czech 183 days?

No. Days spent in the Czech Republic solely for study or medical treatment do not count toward the 183 days and do not make you resident, even if they add up to more than 183 days.

The Czech Republic's 183-Day Tax Residency Rule

Q: How many days can you stay in the Czech Republic without becoming a tax resident?

Up to 182 days in a calendar year. Reaching 183 days or more in the same calendar year, continuously or across several stays, makes you a Czech tax resident by habitual abode. A separate permanent-home test can also apply if you keep a home there.

Spending at least 183 days in the Czech Republic during a calendar year makes you a Czech tax resident. Here is exactly how the count works.

Last verified: July 2026

In short: you become a Czech tax resident if you spend at least 183 days (183 or more) in the Czech Republic during a single calendar year, and residency then applies from 1 January of that year. Every commenced day counts, so both arrival and departure days count. Days spent solely for study or medical treatment are excluded, and keeping a permanent home in the Czech Republic is a separate route into residency.

Threshold: At least 183 days
Counting window: Calendar year
A day counts if: You are present for any part of it
Other residence test: Permanent home (bydliště)
Tax year: Calendar year
Legal basis: Income Taxes Act, Section 2

The rule

The Czech Republic treats you as a tax resident by habitual abode if you are present there for at least 183 days in a single calendar year, whether continuously or across several separate stays. A few points decide most real cases:

183 or more is enough. The test is at least 183 days, not more than 183. Unlike rules elsewhere that need you to exceed 183 days, in the Czech Republic exactly 183 days already makes you resident.
The window is the calendar year. The 183 days are counted from 1 January to 31 December. Once you reach the threshold, residency applies retroactively from 1 January of that year.
Every commenced day counts. Each started day of stay counts, so any part of a day spent in the Czech Republic counts as a full day. Both your arrival day and your departure day count.
Study and medical days are excluded. Days you spend in the Czech Republic solely for study or medical treatment do not count toward the 183 days, and they cannot make you resident even if they add up to more than 183.

How to count it

List every Czech Republic trip with arrival and departure dates.
Count each commenced day, including both arrival and departure days. Leave out any day spent solely for study or medical treatment.
Total the days that fall inside a single calendar year, from 1 January to 31 December.
If the total reaches 183 days or more in that calendar year, the day-count test is met and you are resident for the whole year from 1 January.

Example. 90 days in the Czech Republic in spring, then 93 more days across two shorter autumn stays, all in the same calendar year.

No single stay is long, but the days total exactly 183 in that one calendar year. Because the test is 183 or more, you become a Czech tax resident for the entire year, applied retroactively from 1 January.

Beyond the day count

The 183-day count is one route in, not the only one. The Czech Republic can also treat you as resident if you have a permanent home or place of abode there (a bydliště) under circumstances indicating an intention to reside there permanently. Either test is enough on its own, so you can be resident on the permanent-home basis even below 183 days. Note that simply holding a long-term visa or residence permit does not by itself create tax residency – it is your actual presence and living situation that count. And if another country also claims you, a double-tax treaty decides residency through tie-breaker rules such as permanent home and centre of vital interests.

Official source: Section 2 of the Income Taxes Act (Act No. 586/1992 Coll.), on the Czech public administration portal (gov.cz).

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FAQ

How many days can you stay in the Czech Republic without becoming a tax resident?

Up to 182 days in a calendar year. Reach 183 days or more in the same year and the day-count test is met.

Does exactly 183 days count?

Yes. The Czech test is 183 or more, so exactly 183 days is enough, unlike rules that require more than 183 days.

Do study or medical stays count?

No. Days spent solely for study or medical treatment are excluded and cannot make you resident on their own.