SIN, tax returns and the refunds students miss
🇨🇦 Canada · After you land · 8 min read

SIN, tax returns and the refunds students miss

Getting a SIN, T4 slips, filing a return even with no income, GST/HST credit, tuition tax credits, and provincial benefits worth thousands.

Get a Social Insurance Number before you start working

A SIN is required to work legally and to be paid in Canada. Figures below are illustrative — verify every threshold and deadline on canada.ca and the CRA website before relying on them.

SIN application
Free
Apply online, by mail, or in person at Service Canada
Filing deadline
30 April
for the previous calendar year's tax return
GST/HST credit
Quarterly payments
amount depends on income — verify current rates on canada.ca

Applying for your Social Insurance Number (SIN)

You need this before your first paycheque, and often before opening certain accounts or receiving benefits.

  1. 1

    Confirm your work eligibility

    Most study permits allow up to 20 hours/week off-campus during regular academic sessions and full-time during scheduled breaks — check the specific conditions printed on your own study permit before applying for jobs.

  2. 2

    Apply through Service Canada

    Apply online, by mail, or in person at a Service Canada Centre with your study permit and passport. It's free and usually issued within a few weeks.

  3. 3

    Give your SIN to your employer immediately once issued

    Your employer needs it to add you to payroll and issue your T4 slip at year-end.

T4 and T2202 slips — what they are and why you need them

These are the two documents that drive most students' tax returns.

SlipIssued byWhat it shows
T4Any Canadian employer you worked forYour employment income and tax already withheld for the calendar year
T2202Your college/universityEligible tuition fees paid and months of full/part-time enrolment, used to calculate your tuition tax credit
T4AScholarship/bursary/award providers, or CRA for certain benefitsScholarship, bursary or other income not from regular employment

Both T4 and T2202 slips are typically available for download from your employer's payroll portal and your school's student portal (often under "Financial Account" or "Tax Forms") by late February.

File a return even with zero income — here's why

This surprises many students, but skipping your return when you had little or no income actually costs you money.

Filing a tax return, even with C$0 income, is what triggers CRA to calculate and pay you the GST/HST credit and various provincial/territorial credits (such as Ontario Trillium Benefit or BC climate action credit, depending on your province of residence) — these are paid quarterly and can add up to a meaningful amount over a year for a low-income student. Filing also formally establishes your unused tuition credits so you can carry them forward. Not filing simply means you leave that money unclaimed.

Tuition tax credits and carry-forward

Tuition doesn't reduce this year's tax cash-in-hand for most students with little income — but it isn't wasted.

The federal tuition tax credit (and a matching provincial credit) is non-refundable, meaning it can only reduce tax you owe — it won't generate a cash refund on its own if you owe little or no tax. However, any unused amount can be carried forward indefinitely to a future year when you're earning more (for example, once you're working full-time on a Post-Graduation Work Permit), significantly reducing tax in that higher-income year. Make sure your T2202 amounts are correctly entered every year you're enrolled, even if you don't need the credit yet.

Residency for tax purposes — not the same as immigration status

Most international students in Canada are considered residents for tax purposes, which is different from permanent residence.

CRA generally considers you a factual resident of Canada for tax purposes if you've established significant residential ties here (a home, a study permit tied to a long program, a bank account, provincial health coverage where applicable), which is common for full-time international students. Being a tax resident means you report worldwide income, but the Canada-Bangladesh tax treaty and available credits typically prevent double taxation on any Bangladeshi-source income. This is genuinely case-specific — get confirmation from a free campus tax clinic or the CRA if you have ongoing income or assets in Bangladesh.

RRSP and TFSA basics for students

Most students with part-time income don't need to worry about these immediately, but it's worth knowing what they are.

AccountWhat it's forStudent relevance
TFSA (Tax-Free Savings Account)Tax-free growth on savings/investmentsRequires you to be 18+ and hold a valid SIN; usable once you're a resident — good for building an emergency fund with no tax on growth
RRSP (Registered Retirement Savings Plan)Tax-deferred retirement savingsContribution room is based on prior-year earned income reported to CRA — most students have limited room and low tax to shelter, so this usually matters more once you're working full-time post-graduation

Filing your return: free options and CRA My Account

Most students qualify to file completely free using CRA-certified software.

  1. 1

    Register for CRA My Account

    Create an account at canada.ca to view your slips (many employers/schools also submit these directly to CRA), track refunds, and see your notice of assessment.

  2. 2

    Use certified free software

    Wealthsimple Tax and UFile (free for students in many cases) are CRA-certified NETFILE software; they walk you through T4, T2202 and credit entry step by step.

  3. 3

    Check your campus tax clinic

    Many Canadian universities and colleges run free tax clinics (often via the Community Volunteer Income Tax Program, CVITP) during tax season, staffed by trained student or community volunteers who will file simple returns for you at no cost.

  4. 4

    File by 30 April

    This is the standard deadline for most individuals; confirm the exact date each year on canada.ca, since it can shift slightly if it falls on a weekend.

Keep every T4, T2202 and notice of assessment

These documents are useful for future study/work permit applications, PR applications (Express Entry, PNP) and proving your Canadian income history to landlords or lenders.

Verify every figure and deadline on the official source

Tax credit amounts, GST/HST credit thresholds, RRSP/TFSA limits and filing deadlines are set and updated annually by the CRA and can change. Always confirm current details at canada.ca, the CRA website, or your school's international student office/tax clinic before filing or making a financial decision.

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