Do I have to claim the student treaty exemption on my return?
Yes. The relief is claimed, not automatic. A student or trainee article does not switch itself on because you hold a study permit or because the payer knows you are a student, and nothing in the return infers it from your enrolment. It is claimed on the return for the year, and it usually requires a statement filed with that return identifying the article relied on and the income it covers. Filing without that statement is the ordinary way the exemption is lost, and it is lost quietly, because the assessment simply taxes the income you reported.
Does the exemption period restart if I go home between courses?
No. The period runs from arrival and it does not restart. That is the single feature of these articles people most often assume works the other way round: a break in the middle, a new programme, a new institution or a change of visa does not put the clock back to zero. So the question to settle at the outset is when the period began, not when the current course did. Work out that start date, write it in the file with the evidence for it, and you know which years the article can still cover before you rely on it.
Is the money my family sends me for living costs taxable here?
Student and trainee articles are written to exempt maintenance payments, which is what payments for your living and education costs from outside the country are. That is the core of the relief, and it is usually the easiest part of a claim to support, because the evidence is the transfers themselves and the purpose they were sent for. Two cautions. The exemption belongs to the article in your particular treaty, so read that text rather than a general description of it. And it still has to be claimed on the return with the supporting statement.
Can I claim the treaty exemption on my part-time job too?
Sometimes, and it depends entirely on the treaty. Some student and trainee articles exempt limited local earnings alongside maintenance payments; others exempt the maintenance payments only and leave employment income taxable where the work is done. The wording differs treaty by treaty, so this is not a question that can be answered from the general shape of the relief. Read the article that applies to you, and if it does cover local earnings, note the limit written into it, because earnings above that limit are outside the exemption and belong on the return as ordinary income.
Do my years as a student count towards becoming a tax resident?
Treat that as a separate question with a separate answer. Days excluded from a residency count and treaty-exempt income are two different reliefs, and they have to be claimed separately. An exemption on your maintenance payments does not by itself keep the study period out of a day count, and excluded days do not by themselves make any income exempt. Deciding one and assuming the other follows is how a return ends up half right. Settle residence first, then the income article, and record the basis for each.
What if I never claimed the student article in an earlier year?
The claim can usually still be made, but it is made the same way it should have been made originally: for the specific year, with the statement identifying the article and the income it covers. So the work is year by year rather than a single correction. Reconstruct the arrival date and the exemption period, decide which of those years the article reaches, and check whether the income you reported in each of them was maintenance or local earnings, because the treaty may treat those differently. Where residence was also misstated, that is a second claim, not part of this one.
Is a tax treaty the same thing as a totalization agreement?
No, and being covered by one says nothing about the other. An income tax treaty deals with income tax. A totalization or social security agreement deals with contributions — which country's social security system you pay into while working abroad, and how periods in two systems combine for benefit eligibility. Canada and the United States have both; plenty of country pairs have one and not the other. See totalization agreements.
What is a totalization agreement and how do I use one?
A social security agreement that stops you contributing to two systems for the same work, and lets periods in both count towards benefit eligibility in either. Which system you stay in depends on the agreement's rules for your situation — a seconded employee usually remains in the home system for a set period, a locally hired one usually joins the host system. You evidence it with a certificate of coverage obtained before or shortly after the assignment starts. See certificates of coverage.
