Introduction
Tax is money you pay to the government. The government uses it to pay for roads, schools, and hospitals. If you work a part-time job, tax may come off your pay. Many students think tax is only for grown-ups with big jobs. That is not true. Students who work also deal with tax, but the rules are simple once you see them.
This guide is about income tax in Canada. Income is the money you earn from work. It explains how little tax most students pay. It also explains how you can get money back. You do not need to be a math expert. You only need your pay slips and a little time.
What It Is
Income tax is a tax on the money you earn. In Canada, you pay federal tax to the Government of Canada. You also pay provincial tax to your province. This guide talks mostly about federal tax. Ontario has its own tax rules on top of the federal rules. The two taxes are worked out apart from each other.
Your boss takes some tax off each paycheque. A paycheque is the money your boss pays you for work. Your boss sends that tax money to the Canada Revenue Agency. The Canada Revenue Agency is the office that collects tax in Canada. Its short name is the CRA.
At the end of the year, you file a tax return. A tax return is a form that tells the CRA how much you earned and how much tax was already taken off. The tax year is January 1 to December 31. Most people must file by April 30 of the next year. Even if you earned no money, filing can still help you claim credits and benefits.
How It Works
Not all of your income is taxed. The first part of your income is tax-free. For 2025, the federal basic personal amount is $16,129 for most people. The basic personal amount is the part of your income that has no federal tax on it. If you earn less than that in 2025, you should owe no federal income tax.
Income above that amount is taxed in steps called brackets. A bracket is a range of income with its own tax rate. For 2025, the lowest federal tax rate was 14.5 percent for the full year. The rate was 15 percent for the first half of 2025 and 14 percent from July 1, 2025. In 2026, the lowest rate is 14 percent for the whole year. The lowest rate covers the first $57,375 of taxable income in 2025.
Your boss does not know your full year income. Your boss counts each pay as if you earn that much all year. That is why too much tax can come off a student paycheque. When you file your tax return, the CRA checks the real numbers. If too much tax was taken off, the extra money comes back to you. That money back is called a refund.
Tuition can also lower your tax. A tuition tax credit is a tax break for the tuition fees you paid for school. It is not a refund on its own. It lowers the tax you owe to zero at most. You need a T2202 slip from your school to claim it. A T2202 is a paper from your school that shows your tuition fees. For 2025, the federal credit is 14.5 percent of your eligible tuition fees. If you do not need all of it this year, you can carry it forward to a future year. Carry forward means you save it and use it later. You can also transfer up to $5,000 of this year’s tuition amount to a parent, a grandparent, or a spouse.
An Example With Numbers
Here is a simple example with real 2025 numbers. Sara works part-time at a store. In 2025, she earns $20,000 in total. The first $16,129 has no federal tax on it. That leaves $3,871 to be taxed. At 14.5 percent, the federal tax on $3,871 is about $561. This is before her tuition credit and before provincial tax. Provincial tax is a separate tax, so her total tax is a bit more.
Sara also paid $5,000 in tuition fees. Her tuition tax credit is 14.5 percent of $5,000. That is $725. Her credit of $725 is more than her federal tax of about $561. So she owes no federal tax for 2025. She cannot get the extra $164 back as a refund from the credit alone. But she can carry the unused part forward to a future year when she earns more. Check the math: $725 minus $561 is $164. That is the unused part she can save for later.
Now think about her paycheques. Her boss took $900 in federal tax off her pay during the year. Her real federal tax is zero after her tuition credit. So she should get the $900 back as a refund when she files. This is a made-up example, not a promise. Your own numbers will be different. But the idea is the same for many students: file your return, and the extra tax comes back.
Common Mistakes
Some students never file a tax return. They think they earned too little for it to matter. But filing is how you get a refund of extra tax. Filing is also how you claim your tuition credit and carry it forward. If you do not file, the CRA cannot give you money back. Keep your T4 slip safe. A T4 is a paper from your boss that shows your pay and the tax taken off.
Some students lose their slips or throw them away. You need your T4 from each job and your T2202 from your school. Ask your boss or your school for a copy if you lose one. Some students also pay a tax bill with a credit card. That can cost a lot in interest. Interest is extra money you pay for borrowing money. Read our guide on how credit card interest works in Canada before you do that.
Some students think a tax refund is free money. It is not. It is your own money coming back to you. It is smart to save it or put it in a TFSA. A TFSA is a Tax-Free Savings Account. It is a place to save money without paying tax on the growth inside it. Read our simple guide on what a TFSA is to learn more.
Final Thoughts
Tax feels scary at first, but most students pay very little of it. The first $16,129 of income in 2025 has no federal tax on it. Your tuition can lower your tax even more. File your return by April 30, keep your slips, and check if a refund is waiting for you. That small habit can put real money back in your pocket each year.
Quick Questions
Do students have to pay income tax in Canada?
Yes, if they earn enough. But the first $16,129 of income in 2025 has no federal tax on it for most people.
How do I get a tax refund as a student?
File a tax return. If your boss took off more tax than you owe, the CRA sends the extra money back to you as a refund.
What is the tuition tax credit?
It is a tax break for tuition fees you paid for school. For 2025, it is worth 14.5 percent of your eligible tuition fees, and you can carry any unused part forward to a future year.
Disclaimer: This article is for educational and informational purposes only and does not constitute financial advice.
Sources: TaxTips.ca, Canada 2025 Federal Tax Rates & Tax Brackets ; H&R Block Canada, 2025 Canadian Tax Brackets & Middle-Class Tax Cut Explained ; NerdWallet Canada, Tuition Tax Credit: Who’s Eligible and How to Claim It ; University of Victoria, Income tax in Canada ; TurboTax Canada, How Much Tax Do Co-op Students Pay in Canada