Free tool, one rule
183-day rule calculator.
Add your trips to one country. See how many days you spent there in a calendar year or in the last 12 months, and how far you are from 183.
This free calculator counts one country at a time. The Countr app counts every country automatically, with 67 tax trackers that each use the right period and counting method. See all trackers.
Your trips to one country
Entry and exit day, both included.
Counts any part of a day as a day. Some countries count differently; check the rule for your country.
About the 183-day rule
183 days is just over half a year, and many countries use it as one test of tax residency. It is rarely the only test, and the period and counting method differ by country. Read our guide to the 183-day rule, or look up your country on the trackers page.
What does this calculator count?
It counts the days you were in one country during a calendar year, or during the 12 months ending on a date you choose. Arrival and departure days both count as full days, which is how most 183-day rules count.
Does staying under 183 days mean I am not a tax resident?
Not always. Many countries also look at your home, your family or where your life is based, and some count days differently, for example midnights in the UK. Use this as a first check and confirm with the tax authority or an adviser.
Which period should I choose?
Many countries use the calendar year. Others, like Portugal, Brazil or New Zealand, use any 12-month period. Some use a tax year that starts on another date, such as 6 April in the UK. The Countr app has the right period built into each tracker.
Is my data saved?
Your trips are saved only in this browser, on this device. Nothing is sent to us.