International Student Tax in Canada: The SIN-9 Guide

If you are an international student studying in Canada, you likely have a Social Insurance Number that starts with the digit 9. That number tells the CRA something specific about your tax status — and understanding what it means is the first step toward filing correctly, claiming credits you are entitled to, and avoiding costly mistakes.

Many international students assume they do not need to file a Canadian tax return if they earned little or no income. That assumption is wrong, and it costs them money every year they skip it.

What a 900-Series SIN Means

A SIN beginning with 9 is issued to individuals who are neither Canadian citizens nor permanent residents but who need a SIN for work or tax purposes. For international students, this typically means you hold a valid study permit and have either a work permit or are authorized to work on campus.

Your 900-series SIN has an expiry date tied to your immigration document. When your permit is renewed, you must update your SIN with Service Canada. If you later become a permanent resident, you will be issued a new, permanent SIN.

From a tax perspective, a 900-series SIN identifies you as a temporary resident. You are still required to file a Canadian tax return if you have taxable income, and you are eligible for most of the same credits and deductions as any other Canadian tax resident — provided you meet the residency requirements.

Why You Should File Even With Zero Income

This is the most important takeaway for international students: file every year, even if your income is zero. Here is why:

GST/HST Credit

Once you file a tax return and the CRA determines you are a resident of Canada for tax purposes, you become eligible for the quarterly GST/HST credit. For a single individual with no income, this credit pays approximately $500 per year in tax-free quarterly payments. Over a four-year degree, that is roughly $2,000 — money you leave on the table if you never file.

Tuition Credit Carryforward

Every year you attend a designated educational institution in Canada, your school issues a T2202 slip reporting the tuition fees you paid. These fees generate a federal tuition tax credit that can be carried forward indefinitely. If you have no income now, the credits accumulate and reduce your tax bill in future years — including after graduation when you start working, or even after you become a permanent resident.

Provincial Credits and Benefits

Depending on your province, you may qualify for additional benefits. Ontario residents can receive the Ontario Trillium Benefit (combining the Ontario energy and property tax credit, the Northern Ontario energy credit, and the Ontario sales tax credit). These benefits require a filed tax return to trigger.

Building a CRA Filing History

A consistent filing history demonstrates to the CRA — and to immigration authorities — that you are compliant with Canadian tax obligations. This documentation can support future immigration applications, including permanent residency.

How to Claim T2202 Tuition Credits

Your educational institution is required to issue a T2202 (Tuition and Enrolment Certificate) for each calendar year you were enrolled. Some schools make these available through your student portal; others mail them.

When filing your return:

1. Enter the total eligible tuition fees from Box A of your T2202
2. The federal tuition credit is calculated at 15% of your eligible fees — so $10,000 in tuition generates a $1,500 credit
3. If your income is too low to use the credit, the unused portion carries forward automatically to future tax years
4. You may transfer up to $5,000 of the current year's credit to a spouse, parent, or grandparent (minus any amount you use yourself)

Keep in mind that tuition for programs outside Canada does not qualify for the T2202 credit. Only tuition paid to designated educational institutions in Canada (and certain qualifying institutions abroad for Canadian residents) is eligible.

Moving Expenses Deduction

If you moved at least 40 kilometres closer to your school to begin full-time studies, you may be eligible to deduct your moving expenses. Eligible costs include:

• Transportation and travel (including meals during the move)
• Temporary living expenses near your old or new home (up to 15 days)
• Cost of cancelling a lease at your old residence
• Utility connection and disconnection fees

The deduction is limited to the amount of scholarship, bursary, or fellowship income included on your return — not your total income. If your moving expenses exceed that amount, the unused portion carries forward to the next year.

Common Mistakes International Students Make

Not Filing at All

As discussed above, this is the most expensive mistake. Each unfiled year is a missed GST/HST credit payment, a missed tuition carryforward, and a gap in your CRA filing history.

Using the Wrong Residency Status

Your tax residency status is not the same as your immigration status. Most international students who live in Canada for more than 183 days in a year are considered residents for tax purposes. Filing as a non-resident when you are actually a resident means losing access to personal credits and benefits.

Forgetting to Report Worldwide Income

As a Canadian tax resident, you must report worldwide income — including income earned in your home country. Failing to disclose foreign income can trigger CRA penalties and may affect your immigration file. Tax treaties between Canada and your home country typically prevent double taxation, but the income must still be reported.

Missing the Scholarship Exemption

Most scholarship and bursary income received for enrollment in a qualifying program is tax-exempt. If your tax software asks you to report scholarship income, make sure the exemption is applied. Reporting it as fully taxable inflates your income unnecessarily.

Not Applying for Benefits After Filing

Filing a return does not always automatically trigger benefit payments. You may need to separately apply for the GST/HST credit (Form RC151 for newcomers) or provincial benefits. Check your CRA My Account after assessment to confirm all applicable benefits are active.

When to Get Professional Help

If your tax situation involves any of the following, working with a professional is worth the investment:

• First time filing in Canada and unsure about residency status
• Multiple T2202 slips from different institutions
• Income earned in your home country that needs treaty-based reporting
• Prior years where you did not file and need to catch up
• Transition from student status to permanent residency

Our tax situations services are designed for exactly these cases. We work with international students across Ottawa's universities and colleges — Carleton, uOttawa, Algonquin, and La Cité — and we understand the specific forms, credits, and filing requirements that apply.