US SPT with excluded days
Compare physical presence with countable days after confirmed exclusions. Check student or teacher history, then apply each year's exclusions before weighting.
Count the days that belong in the SPT
Annual totals are independent of your saved travel ledger. Confirm exclusions before applying them.
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How to use this calculation
Read the excluded-days guide to identify the applicable category. Then enter annual totals, confirm eligible exclusions and compare the result. Use the travel-ledger calculator to count dates first.
Worked example
Physical presence of 150, 90 and 60 days produces 190 weighted days. If 20 current-year days are independently confirmed as excludable, the countable totals are 130, 90 and 60: 130 + 30 + 10 = 170. The weighted threshold is no longer met.
What does an adjusted result decide?
Only the 31-day and weighted 183-day SPT conditions. It does not decide green-card residency, exemption evidence, closer connection, treaty claims, tax liability or filing obligations. Form 8843 may be required even without an income-tax return; this tool does not file forms.
Why exclude before weighting?
Excluded dates belong to the calendar year in which they occurred. Removing 30 prior-year dates reduces that year's weighted contribution by 10, not 30. See more three-year SPT examples.
Official sources
- IRS: Substantial Presence Test and excluded days
- IRS: exempt students and calendar-year history
- IRS: teachers, trainees and the foreign-employer exception
- Form 8843 and its instructions
Guidance checked 5 October 2026. Results depend on the facts you confirm; tax filing, treaty claims and immigration eligibility need separate review.