Purpose and scope
What this dashboard measures
Count presence days in a selected year and compare them with a supplied threshold.
Tax year, Presence ranges, Day threshold, and Partial-day rule feed the underlying totals beneath the Tax Residency Day Counter headline; Carry Partial-day rule in its entered unit for comparison.
Instructions
How to use this calculator
Enter the tax year, all presence ranges, the numerical threshold, and the treatment of departure days.
- Supply Tax year and Presence ranges from one Tax Residency Day Counter reporting period.
- Supply Day threshold and Partial-day rule without changing the Partial-day rule unit.
- Calculate the Tax Residency Day Counter and match its headline with underlying totals.
- Audit the Tax Residency Day Counter warning, then match Partial-day rule with its external requirement.
- Match the Tax Residency Day Counter reference with the Partial-day rule definition or convention.
Interpretation
Interpreting the headline metric
Meeting a day threshold is only one signal. The result should be read as arithmetic evidence, not a residence conclusion.
Audit Tax year, Presence ranges, and Day threshold beside the Tax Residency Day Counter headline; Partial-day rule reveals rounding across the underlying totals.
For a separate check, the Schengen 90/180-Day Calculator is designed to count supplied stays inside a rolling window and estimate remaining allowance.
Calculation
Method used
Ranges are clipped to the selected year, duplicated dates are removed, and the resulting presence count is compared with the threshold.
The Tax Residency Day Counter evaluates Tax year, Presence ranges, and Day threshold separately; carry Partial-day rule visible outside any percentage, rate, or total.
Calculation method last reviewed: June 21, 2026.
Worked scenario
Example calculation
Match Partial-day rule with the Tax Residency Day Counter underlying totals before judging the Partial-day rule headline scale or units.
Visual audit
Reading the supporting metrics
The Tax Residency Day Counter dashboard places underlying totals beside Tax year, Presence ranges, Day threshold, and Partial-day rule. Audit Partial-day rule in its original unit before accepting the underlying totals or headline status.
Boundaries
Important edge cases and limitations
Treaties, domicile, permanent home, center of vital interests, tie-breakers, exempt days, and partial days may control.
Adjust Partial-day rule in the Tax Residency Day Counter before reading the underlying totals or headline.
Input audit
Checklist for this calculation
- Audit the Tax Residency Day Counter period and Tax year and Presence ranges units.
- Match Partial-day rule with the Tax Residency Day Counter underlying totals.
- Calculate a fresh Tax Residency Day Counter after any Partial-day rule adjust.
- Audit the Tax Residency Day Counter Partial-day rule against the planning source policy or professional instruction.
- Match the Tax Residency Day Counter reference with the Partial-day rule date and use case.
Practical use
Recommended workflow
Maintain a travel-day ledger and review the complete residence test for every potentially relevant country.
Verification
References
Reference and calculation method reviewed: June 21, 2026.
Questions
Frequently asked questions
Does 183 days automatically create tax residence?
Not universally. Many systems use other tests or combine day counts with personal and economic ties.
Is the tax residency day counter a final decision about
Use the Tax Residency Day Counter to expose dates and assumptions, not to replace the authority responsible for the underlying decision involving Partial-day rule.
When should IRS: Substantial Presence Test be checked for the
Match IRS: Substantial Presence Test with Partial-day rule whenever the Tax Residency Day Counter endpoint affects a decision. Carry its version or access date beside Tax year.
How does Partial-day rule qualify the tax residency day counter headline?
The Tax Residency Day Counter headline compresses Tax year and Presence ranges, so match it with Partial-day rule and underlying totals. The Partial-day rule denominator then exposes rounding in the Tax Residency Day Counter.
Which inputs make a tax residency day counter result reproducible?
Another reviewer needs Tax year and Presence ranges and Day threshold and Partial-day rule to recreate the Tax Residency Day Counter. Store those values with their units and generation date.