Non-Resident in the U.S.: Filing Obligations Under Form 1040-NR
Non-residents who earn U.S. source income, own U.S. real estate, or receive certain U.S. scholarships, gambling winnings, or sale proceeds have a U.S. filing obligation on Form 1040-NR. Getting the return right matters: treaty positions, FIRPTA withholding, and ECI versus FDAP classification each change the tax materially.
Who Needs to File Form 1040-NR
A non-resident alien (NRA) generally must file Form 1040-NR if they were engaged in a U.S. trade or business during the year, earned effectively connected income (ECI), had U.S. source income on which the 30% withholding was not fully satisfied, or are claiming a refund of over-withheld tax under a treaty.
Common triggers include Canadian investors with U.S. rental property, foreign partners in U.S. partnerships, foreign athletes and entertainers with U.S. performance income, foreign students on F or J visas with taxable scholarship or wages, foreign sellers of U.S. real estate subject to FIRPTA, and non-residents with U.S. gambling winnings who want to claim treaty-reduced tax.
ECI vs FDAP: The Core Distinction
U.S. source income received by a non-resident falls into two buckets. Effectively Connected Income (ECI) is income from a U.S. trade or business (for example, U.S. rental with material participation, partnership business income, personal services performed in the U.S.) and is taxed at graduated rates on net income after deductions.
Fixed, Determinable, Annual, or Periodical (FDAP) income is passive-type U.S. source income (dividends, interest, royalties, rents under certain elections) generally taxed at a flat 30% on gross, reduced by treaty. Many Canadian investors see 15% on dividends and 10% or 0% on interest under the Canada-US tax treaty.
Mischaracterizing the income changes the tax materially. A net-rental election under Section 871(d) moves passive rental from 30% gross to graduated rates on net, which usually saves tax for leveraged properties with real deductible expenses.
Treaty Positions: The Single Most Valuable Line on the Return
Non-residents who qualify for treaty benefits claim them on Form 1040-NR and, when a return position is treaty-based, attach Form 8833. The Canada-US tax treaty reduces dividend withholding to 15% (and to 5% for certain intercorporate holdings), interest to 0% in most cases, and provides tiebreaker rules for dual residents.
Common treaty positions include Article IV (residency tiebreaker), Article VII (business profits absent PE), Article X (dividends), Article XI (interest), Article XII (royalties), and Article XV (dependent personal services). Each requires a specific claim on the return and often a Form 8833 disclosure.
FIRPTA: U.S. Real Estate Sales by Foreign Sellers
Under the Foreign Investment in Real Property Tax Act (FIRPTA), the buyer of U.S. real estate from a foreign seller must generally withhold 15% of the gross sale price and remit to the IRS. The withholding is credited against the seller's actual tax liability on Form 1040-NR.
Foreign sellers regularly overpay because the 15% withholding exceeds the actual gain. A withholding certificate (Form 8288-B) filed before or at closing can reduce the withholding to an amount closer to the actual tax owed. We prepare the 8288-B, manage the closing coordination with counsel, and file the 1040-NR that reports the gain and reclaims any overwithholding.
State Tax Obligations
Non-residents with U.S. source income often have state tax obligations in addition to federal. Rental property creates state nexus in the state where the property sits. California, New York, and Florida each have their own rules for non-resident filers. We prepare state non-resident returns where required and coordinate credits with the federal treatment.
State tax often runs in parallel rather than integrated with the federal treaty analysis. A Canadian filing a 1040-NR with a treaty position should still expect a state return with no equivalent treaty benefit in many states.
Most non-residents need an ITIN to file Form 1040-NR. If the applicant does not yet have an ITIN, the Form W-7 application is attached to the 1040-NR at filing. TYM's Certifying Acceptance Agent (CAA) status lets us verify the passport in person and submit the package without mailing originals.
Common Mistakes on Non-Resident Returns
Top mistakes we see: filing Form 1040 instead of 1040-NR (an NRA is not a U.S. person for most of the return), missing the treaty claim on Form 8833, failing to make the Section 871(d) net-rental election on rental property, and not tracking FIRPTA withholding that was taken at closing.
Each of these costs the taxpayer money, either by overpaying the IRS or by missing a treaty refund. A CPA who files these regularly catches them; a general preparer often does not.
Planning: Reducing Next Year's U.S. Tax Before the Year Ends
Proactive non-resident planning includes: making a Section 871(d) net-rental election before year-end, setting up an agent for rental collections to simplify withholding, confirming treaty residency status, and managing U.S. days-of-presence to avoid substantial-presence test exposure.
We do a November planning call with every non-resident client to capture these decisions before the calendar flips.
Substantial Presence Test: The Trap That Converts Status
A non-resident who spends too many days in the U.S. risks failing the Substantial Presence Test (SPT) and being treated as a U.S. tax resident. The SPT counts all days in the current year, one-third of days in the prior year, and one-sixth of days in the year before that. The threshold is 183.
Once SPT is met, the individual is taxed on worldwide income unless an exception (closer connection or treaty tiebreaker) applies. We track day counts for clients who travel frequently between Canada and the U.S. and flag the threshold months in advance, often with documented filing of Form 8840 (Closer Connection Exception) where the facts support it.
Estate and Gift Tax: An Underappreciated Exposure for Non-Residents
Non-residents owning U.S. situs assets at death (real estate, U.S. corporate stock, certain tangibles) face U.S. estate tax with only a $60,000 exemption (versus the $13M+ exemption for U.S. citizens). The Canada-US tax treaty provides a pro-rata exemption for Canadian residents based on the ratio of U.S. assets to worldwide assets.
Lifetime structuring (Canadian holding corporation, joint ownership planning, life insurance) can dramatically reduce U.S. estate exposure for cross-border individuals. We coordinate the analysis with cross-border estate counsel.
Do I owe tax if I won at a U.S. casino as a Canadian?
U.S. casinos generally withhold 30% on gambling winnings above certain thresholds. Canadian residents can often reclaim part or all of the withholding on Form 1040-NR under the treaty, netting against documented losses.
I own one U.S. rental. Do I file 1040-NR?
Yes, in almost every case. Filing creates the basis records and makes the Section 871(d) election available, which usually reduces tax materially.
When is 1040-NR due?
Generally June 15 for non-residents without U.S. wage withholding, with extension to December 15 available on Form 4868.
Do I have to report my worldwide income?
No. A non-resident alien reports only U.S. source income on Form 1040-NR. Worldwide reporting applies only to U.S. citizens and residents.