Do I file Form 1040-NR even if no tax is owed?
Annual return obligations of this kind are generally required on the facts rather than on the tax result, so a nil position does not remove one. Non-resident aliens with US-source income that was not fully satisfied by withholding at source, and dual-status filers reporting the non-resident part of a split year.
What happens if I have missed Form 1040-NR for several years?
Missed years are dealt with as a package rather than one at a time, because the route chosen for the first year affects the relief available for the rest. We map the years and the obligations before anything is filed.
Is Form 1040-NR the same as the other reports I already file?
No. The non-resident alien return, reporting only US-source income and income effectively connected with a US trade or business. Satisfying a different obligation, even one covering the same accounts or entity, does nothing for this one.
Do I need to file a 1040-NR if tax was already withheld?
Sometimes withholding settles the liability and sometimes it does not, and the difference decides whether a return is needed. Flat withholding at source on passive US-source income can be the end of the matter. It is not the end where a treaty allows a lower rate than the payer applied, where the withholding exceeded the tax actually due, or where you also have income connected with a US trade or business, which is taxed on an entirely different basis. Filing is also the only way to recover tax that was over-withheld, so it is frequently worth doing.
What is effectively connected income on a 1040-NR?
It is income that belongs to a US trade or business rather than merely arising in the United States, and the distinction changes the arithmetic entirely. Effectively connected income is taxed on a net basis at graduated rates, so the expenses of earning it come into account. Other US-source income is taxed on its gross amount at a flat statutory rate, with no deductions, and only a treaty can bring that rate down. Two systems therefore run side by side on one return, and the first real piece of work on any non-resident engagement is deciding which items sit in which.
I left the United States part-way through the year — what do I file?
A year split by a change of status is reported in parts, with the non-resident portion of the year reported as a non-resident and the remainder on the other basis. What makes these returns awkward is not the arithmetic but the boundary: the date the status actually changed has to be established on the facts and then applied consistently to every income item, including those that straddle it. Employment income, investment income received either side of the line, and anything connected with a US business are each allocated by reference to that same date.
Can a treaty reduce the tax withheld on my US income?
For income taxed on a gross basis at the flat statutory rate, a treaty is the only thing that can reduce it, and whether one applies depends on your country of residence and the category the income falls into. The mechanism runs in two places. The payer can apply a reduced rate at source if the right documentation is in its hands before payment. Failing that, the return is where the claim is made and the excess recovered. The second route works, but it leaves the money with the Treasury for much of a year.
Do I report my home country income on a 1040-NR?
No. The non-resident return reaches US-source income and income effectively connected with a US trade or business, and stops there. Salary earned and taxed in your own country for work done in your own country is outside it. This is the single most common relief for clients who have been avoiding the filing for fear of exposing their whole financial life to another tax authority. What does need care is the sourcing question itself, because some income does not sit where the recipient assumes, and sourcing is decided by rule rather than by where the money landed.
Why is my US rental income taxed differently from my US business income?
Because they may sit in different systems on the same return. Income connected with a US trade or business is measured net at graduated rates, so the costs of earning it reduce the base. Passive US-source income is charged on its gross amount at a flat rate, which means tax on the rent received with nothing allowed for what it cost to produce. Whether a particular property holding falls on one side of that line or the other is a question of fact about the activity, and it is worth settling deliberately rather than discovering it from a withholding statement.
What is a dual-status alien?
Someone who is a US tax resident for part of a year and a non-resident for the rest of it — almost always the year of arrival or the year of departure. You file one return covering both periods, with worldwide income and ordinary deductions for the resident part and US-source income under the non-resident rules for the other. Several ordinary reliefs, including joint filing, are restricted for the year. See dual-status alien.
Does my foreign spouse have to pay US tax?
Not unless something connects them to the US system: they are a citizen or green card holder, they meet the substantial presence test, they have US-source income, or you elect to treat them as a US resident so you can file jointly. That election is the one people make without weighing it, because it reaches their foreign salary, their foreign investments and their foreign accounts, not just their name on the form. See a US person with a non-resident spouse.
