US nonresident tax filing
US Nonresident Tax Returns and Form 1040-NR
Canadians and other non-US residents may need a US return when they earn US income, operate a US business, sell US real estate or need to recover excess withholding. Illuminous Accounting prepares the return and coordinates the related forms around the actual residence, income and treaty facts.
Quick answer
Who may need Form 1040-NR?
A nonresident alien may need to file when engaged in a US trade or business, when US tax was not fully satisfied through withholding, or when a return is needed to claim a refund, deduction or credit. Filing requirements are fact specific. Residence tests, income type, business activity, withholding and treaty positions all matter.
Source: IRS Instructions for Form 1040-NR.
Common Form 1040-NR situations
US rental and investment income
Report US-source income, reconcile Forms 1042-S or 1099 and determine whether an election, deduction or treaty position changes the final tax.
US trade or business income
Report income effectively connected with a US trade or business and coordinate related business schedules and disclosure requirements.
FIRPTA withholding and refunds
Report a US real-estate sale, calculate the final tax and claim any available refund where FIRPTA withholding exceeded the liability. Review our FIRPTA withholding service.
Dual-status and treaty positions
Coordinate arrival, departure, substantial-presence and treaty-residence facts, including related disclosures when required.
Documents commonly requested
- Passport, US tax identification details and residence history
- US income statements and withholding slips
- Rental, business or investment income records
- Real-estate closing statements and FIRPTA forms
- Prior US returns and relevant Canadian returns
- Travel-day history where residence status is relevant
How the filing works
- 1. Status review: identify the correct US residence and filing position.
- 2. Filing map: confirm Form 1040-NR and any related schedules or disclosures.
- 3. Preparation: reconcile income, deductions, tax, withholding and treaty treatment.
- 4. Delivery: review the return, filing instructions and next-year obligations.
Form 1040-NR questions
Who may need to file Form 1040-NR?
A nonresident alien may need the return when engaged in a US trade or business, when US tax was not fully satisfied through withholding, or when filing is needed to claim a refund, deduction or credit. The answer depends on the full facts.
Can Form 1040-NR recover excess US withholding?
It may. The return reconciles the income, withholding and final US tax. A refund can be claimed when eligible withholding exceeds the calculated liability.
Does selling US real estate require Form 1040-NR?
A non-US seller commonly files Form 1040-NR to report the sale and calculate final tax. FIRPTA withholding is a prepayment and may not equal the final liability.
Is Form 1040-NR the same as Form 8840?
No. Form 8840 is a closer-connection statement used in certain residence situations. Form 1040-NR is an income tax return. Depending on the facts, one, both or another filing position may apply. See our snowbird tax and Form 8840 guide.
Can a tax treaty affect the return?
Yes. Treaty provisions can affect how particular income is taxed and whether a disclosure is required. Treaty claims should be matched to residence, income and US activity.
Get the filing position right before submitting
Bring the US income documents, withholding forms and prior returns. We will identify the return and supporting forms your facts require.
Request a Form 1040-NR ConsultationRelated guidance
By Gurleen Kaur
Founder of Illuminous Accounting. Experience at Deloitte and Grant Thornton.