Free · about 3 minutes · ranges, never exact figures
Check my U.S. filing as a nonresident
If you are not a U.S. resident for tax purposes, you pay U.S. tax only on U.S. income — at graduated rates when it is connected with a U.S. business, otherwise usually 30% of the gross amount (or a treaty rate) withheld at source. A Form 1040-NR is required in some of those cases and worth filing in others. The check reads which applies to you.
Six short screens: the year, whether you are a nonresident (days and a green card), your U.S. income, the rental details if you rent, what was withheld and filed, and what you want. Renting out a U.S. property? The rental guide explains the election before you start.
Check what your U.S. income means
Your U.S. status for the year (from days and a green card — not from a visa), the kind of U.S. income, what was withheld and what was filed. Ranges and "not sure" are fine; no tax numbers or documents. The result shows whether a Form 1040-NR is likely, what a rental election or a treaty may change, and what needs a professional.
About 3 minutes. Results before any email.
What the assessment looks at
- Whether you are a nonresident
- From the green card and substantial presence tests, read at both ends of your day ranges; a borderline or dual-status year goes to review.
- Which income is taxed how
- Business-connected income on the net, other U.S. income at 30% or a treaty rate on the gross.
- Rental income
- Whether the net-basis election is in place, and whether Form W-8ECI and the withholding line up.
- Withholding to claim
- Forms 1042-S, 8288-A and W-2 — credited only through a return.
- What else is needed
- An ITIN, a treaty disclosure, earlier years, a state return.
Who it is for
Nonresidents with U.S. income — landlords, sellers of U.S. property, people paid for work done in the U.S., investors with U.S. dividends.
What it does not do
It does not decide residency for a borderline year, choose an election, apply a treaty, compute tax or file anything. It reads published rules against your answers and says what may apply and what needs a professional.
Authorities cited
- Instructions for Form 1040-NR — Instructions for Form 1040-NR (2025) — who must file, Schedule NEC (30% or treaty rate on gross), withholding credits (Forms 1042-S, 8288-A), Form 8833
- IRS Publication 519 — Publication 519 (2025) — U.S. Tax Guide for Aliens: residency tests, exempt individuals, real property income and the net-basis choice, identifying numbers
- IRS · Determining tax residency status — IRS — Determining an individual's tax residency status: green card test, substantial presence test, dual status (page reviewed 11 Feb 2026)
- IRS · Substantial presence test — IRS — Substantial presence test: 31 days in the current year and 183 weighted days over three years; days that do not count (page reviewed 14 Mar 2026)
- Treas. Reg. §1.871-10 — Treas. Reg. §1.871-10 — Election to treat real property income as effectively connected with a U.S. business (statement, continuation, revocation)
- Form 1042-S — Form 1042-S — Foreign Person's U.S. Source Income Subject to Withholding
- IRS Form 8833 — About Form 8833 — Treaty-Based Return Position Disclosure Under Section 6114 or 7701(b)
- Form W-7 — Form W-7 — Application for IRS Individual Taxpayer Identification Number (ITIN)
Primary sources (Cornell Legal Information Institute for the US Code and CFR; IRS.gov for forms, procedures, and treaty documents). This page is general information, not individualized tax or legal advice.
Questions people ask
Why do you ask about days and not my visa?
Because U.S. tax residency comes from the green card test and the substantial presence test — days over three years — not from the visa. A visa matters only where it can make some days not count, and the check asks that separately.
Do you need my ITIN or passport?
No. The check asks only whether you have a taxpayer number, never the number itself. If you go ahead, documents are exchanged in a secure portal.
Will the result tell me my tax or my refund?
No. It says whether a Form 1040-NR is likely, what may change the tax (a rental election, a treaty, withholding already taken) and what needs a professional. The tax, and any refund, are computed on the return.
What happens if I ask for a quote?
Your answers go with the request, so you are not asked again. You receive a written scope — the years, the forms, who prepares, reviews and files — and a fixed price before anything is charged.