Residency Days Calculator
Use this residency days calculator to count the number of days between two dates — useful for visa stays, residency requirements, and tax day-counting rules. Enter the start and end of a stay (both days counted), optionally add a threshold like 183 days, and the calculator tells you the total and whether you meet it.
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Count your days of presence
Enter values above and press Calculate to see your result.
Formula used
The count includes both the first and last day of the stay:
Days present = (end date − start date) + 1
Adding 1 means a stay from the 1st to the 10th counts as 10 days, not 9. If you set a threshold, the calculator compares your total against it and shows how many days over or under you are. Many residency and tax rules use a 183-day threshold within a defined period.
Worked examples
Half a year. 1 Jan to 4 Jun 2026 inclusive = 155 days.
Single day. The same start and end date counts as 1 day.
Against 183. A 155-day stay is 28 days short of a 183-day threshold.
How to use this calculator
- Enter the first day you were present.
- Enter the last day you were present.
- Optionally enter a threshold (such as 183 days).
- Press Calculate for the inclusive day count and threshold comparison.
- For multiple separate stays, add the counts together.
Common day-count thresholds
| Context | Typical threshold | Period |
|---|---|---|
| Many tax-residency rules | 183 days | Calendar or tax year |
| UK Statutory Residence Test | varies (16–183) | Tax year, with ties |
| Schengen short stay | 90 days | Rolling 180 days |
| Some visa conditions | Program-specific | Defined window |
Always check the exact rule — periods, partial days and absences are defined differently.
Who should use this calculator
Anyone counting days for a residency or tax test, a visa condition, or a long stay abroad — expats, frequent travelers, remote workers, and students. It's a clean, inclusive day counter you can use for each separate stay and then total up.
Why inclusive counting matters
Most presence rules count both the arrival and departure day, so a stay is the gap between the dates plus one. Forgetting the “plus one” is a common error that can put you a day or two off a threshold. When a rule says otherwise (some count only full days), adjust accordingly.
Counting multiple stays
- Count each trip separately with this tool, then add the totals.
- Mind the period — many rules count days within a specific calendar year, tax year, or rolling window.
- Keep evidence of entry and exit dates (stamps, tickets, boarding passes).
- Check partial-day rules — some tests count any part of a day as a full day.
Limitations of this calculator
This counts inclusive days between two dates and compares to a threshold. It does not apply any specific country's residency logic, handle ties or exemptions, or sum multiple stays automatically. Different programs treat entry/exit days, transit, and absences differently — verify the exact rules, and seek professional advice for important decisions.
Frequently asked questions
How do I count days of presence between two dates?
Subtract the start date from the end date and add one, because both the first and last day usually count. This tool does it and can compare against a threshold.
Why add one day to the difference?
Most presence rules count both arrival and departure days, so a 1st-to-10th stay is 10 days, not 9.
What is the 183-day rule?
Many countries treat you as a tax resident if you're present 183 days or more within a defined period. The exact period and counting method vary by country.
How do I count several separate trips?
Count each trip with this calculator, then add the totals. Make sure they all fall within the rule's relevant period.
Is this legal or tax advice?
No. It's a day counter. Residency and tax rules are complex and country-specific — confirm with the relevant authority or a professional.