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US Expat & Traveler Tax Compliance

IRS Substantial Presence Counter

Instantly calculate your fractional days to determine if you trigger US tax residency under the strict 183-day rule.

Enter Your US Travel Days

Include all days where you were physically present in the US for any amount of time.

Counted at 100% value (Multiplier: 1)

days

Counted at 33.3% value (Multiplier: 1/3)

days

Counted at 16.6% value (Multiplier: 1/6)

days

Do not count days commuting from Canada/Mexico, days as an exempt individual (F, J, M, Q visas), or days passing through the US on a layover.

Live Formula Calculation

Current Year
0
Last Year (1/3)
+ 0
2 Yrs Ago (1/6)
+ 0

Substantial Presence Total

Threshold: 183 Days

0.00 days
Enter your days to see your tax residency status.

Safe Days Remaining

How many more days you can stay in the US this year.

0 days max

Approaching Tax Residency?

You may qualify for the 'Closer Connection Exception' to avoid IRS taxes. Consult our trusted Expat CPAs.

Speak to a CPA

How the IRS Substantial Presence Test Works

The Substantial Presence Test (SPT) is the mathematical formula used by the Internal Revenue Service (IRS) to determine if a non-US citizen or non-permanent resident (alien) should be taxed like a US citizen. If you meet the SPT requirements, you are classified as a Resident Alien for Tax Purposes and must report your worldwide income to the IRS.

The 183-Day Fractional Formula

You trigger the Substantial Presence Test if you are physically present in the United States on at least:

  1. 31 days during the current year, AND
  2. 183 days during the 3-year period that includes the current year and the two years immediately before that, counting:
  • All the days you were present in the current year.
  • 1/3 of the days you were present in the first year before the current year.
  • 1/6 of the days you were present in the second year before the current year.

Exceptions to the Rule

Even if the calculator shows you exceed 183 days, you might not be considered a US tax resident if you fall under specific IRS exceptions:

Closer Connection Exception If you are in the US for less than 183 days in the current year, maintain a tax home in a foreign country, and have a closer connection to that foreign country, you can file Form 8840 to claim an exemption.
Exempt Individuals Students (F, J, M, Q visas), teachers, foreign government-related individuals, and professional athletes competing in charitable events do not count their days toward the SPT for specific durations.

Disclaimer: This tool provides mathematical estimates based on public IRS guidelines (Form 1040-NR instructions). It is provided for general informational and travel planning purposes only. It does not constitute legal or tax advice. VisaGrade is not responsible for tax liabilities incurred. Always consult a certified US tax professional or CPA.