Congratulations! You made it through school. Now comes the fun part: adulting. Whether you’re starting your first full-time job, launching a side hustle, or just trying to figure out what a T4 is, tax season doesn’t have to be intimidating. The truth is, the decisions you make right now, in your first few years out of school, can set you up for thousands of dollars in tax savings down the road.
Filing Your First Tax Return on Your Own
Let’s start at the beginning.
If you’ve never filed a personal tax return before, the process can feel overwhelming, but it’s more straightforward than you think. Every Canadian resident who earns income (or wants to claim benefits like the GST/HST credit) needs to file a T1 General Income Tax and Benefit Return with the Canada Revenue Agency (CRA). For most people, the filing deadline is April 30. If you’re self-employed (including side hustles), the filing deadline extends to June 15, but any balance owing is still due by April 30.
What You’ll Need
- Your Social Insurance Number (SIN).
- All T-slips: T4 (employment income), T4A (scholarships, bursaries, freelance income), T5 (investment income), T2202 (tuition), and any others you receive by the end of February (sometimes, you won’t receive slips until mid-late March. Be sure to include these when filing).
- Receipts for deductions and credits: moving expenses, student loan interest, charitable donations, medical expenses, rent payments (for the Ontario Trillium Benefit).
- Your CRA My Account login. If you don’t have one yet, register now. It’s where you’ll find your Notice of Assessment, RRSP/TFSA contribution room, and any carry-forward amounts.
Common Mistakes to Avoid
- Not filing at all. Even if you earned little or no income, you should file. Filing is how you qualify for the GST/HST credit and the Ontario Trillium Benefit. If you’re working and earning a low income, it also triggers the Canada Workers Benefit. And while it’s your earned income that creates RRSP contribution room, filing is what lets CRA calculate and track it.
- Missing the deadline. If you owe tax and file late, CRA charges a penalty of 5% of the balance owing plus 1% per month (up to 12 months). If you’re owed a refund, there’s no penalty, but you’re still leaving money on the table by not filing on time.
- Forgetting to report all income. CRA receives copies of your T-slips. If you leave one out, they’ll reassess you, and it’s easier to get it right the first time.
- Not claiming everything you’re entitled to. Read on: the next four tips cover the most commonly missed items for new grads.
Don’t Leave Free Money on the Table: Claim Your Tuition Credits
This is the single biggest tax benefit most new grads overlook or misunderstand.
If you attended a qualifying post-secondary institution in Canada, you received a T2202 slip each year showing your eligible tuition fees. Those fees generate a federal tuition tax credit calculated at the lowest federal tax rate (14% for 2026). Important note for Ontario residents: Ontario discontinued its provincial tuition and education tax credits in September 2017. If you were a resident of Ontario on December 31, 2017 and had unused provincial tuition amounts from that year or earlier, you may still have carry-forward amounts available. But any tuition paid after September 2017 only generates a federal credit.
For example, if you paid $40,000 in total tuition over four years of school (all after 2017), you’re looking at approximately $5,600 in federal tuition tax credits ($40,000 × 14%). That’s real money that will reduce your tax bill as your income grows.
How It Works
- The credit is non-refundable, which means it can only reduce your tax payable to zero. It won’t generate a refund on its own.
- If you don’t have enough tax payable in the year to use the full credit, the unused amount carries forward indefinitely until you do.
- You can also transfer up to $5,000 of your current year’s unused federal tuition amount to a spouse, common-law partner, parent, or grandparent. The recipient then claims the credit at the 14% federal rate, so a $5,000 transfer is worth up to $700 in federal tax savings for them.
What to Do Right Now
- Log in to CRA My Account and check your carry-forward tuition amounts under “Carryover Amounts.”
- Make sure every year’s T2202 was reported on your prior returns. If you never filed a return during school, you may need to file those years now to pick up the credits.
- When your income rises, these credits will automatically reduce your tax bill, so just make sure your tax software is pulling in the carry-forward amounts.
Pro Tip: If you earned very little during school and never filed, go back and file those returns now. You’ll pick up unused tuition credits and likely receive retroactive GST/HST credit payments.
Your First Real Paycheque: Understanding Tax Withholdings
You accepted the offer, signed the paperwork, and then your first pay stub arrives… and it’s a lot less than you expected. Welcome to source deductions.
What’s Being Taken Off Your Paycheque
- Federal and Ontario income tax. Your employer estimates your annual tax and withholds a proportional amount each pay period based on the TD1 form you filled out when you were hired.
- Canada Pension Plan (CPP) contributions. In 2026, you contribute 5.95% on pensionable earnings between $3,500 and $74,600, plus an additional “CPP2” contribution of 4% on earnings between $74,600 and $85,000. Your employer matches both portions.
- Employment Insurance (EI) premiums. You pay 1.63% of insurable earnings up to $68,900 (2026 rates).
Why You Might Get a Refund
The withholding system assumes you’ll earn the same amount for the entire year. If you started your job mid-year (say, in May after graduating), your employer may have withheld tax as though you’d earn that salary for all 12 months. But you didn’t; you only worked for part of the year. That means you were likely over-withheld, and you’ll get the excess back as a refund when you file.
Combine that with your carry-forward tuition credits and you could be looking at a sizable refund in your first year of full-time work.
The TD1 Form Matters
When you start a new job, your employer gives you a federal TD1 and an Ontario TD1ON. These forms tell payroll how much to withhold. Many new employees just sign the default, but if you have large carry-forward tuition credits, you can request a letter of authority from CRA (Form T1213) to reduce withholdings at source. That means more cash in your pocket throughout the year instead of waiting for a refund.
Student Loan Interest Is Deductible: Here’s How to Claim It
If you’re carrying student loan debt, there’s a silver lining: the interest you pay on qualifying student loans is eligible for non-refundable tax credits at both the federal and Ontario provincial level. Note that this is a tax credit, not a deduction. It directly reduces the tax you owe rather than reducing your taxable income.
What Qualifies
- Interest paid on loans under the Canada Student Loans Act, the Canada Student Financial Assistance Act, or a similar provincial student loan program (such as OSAP in Ontario).
- The credit applies to the interest portion only, not the principal repayment.
- The credit rate is 14% federally (for 2026), plus Ontario provides a matching provincial credit at 5.05%. Combined, every $1,000 of eligible student loan interest saves you approximately $190 in tax.
What Doesn’t Qualify
- Interest on a private line of credit, personal loan, or credit card, even if you used the funds to pay tuition.
- Interest on a loan that has been consolidated into a non-government product (e.g., if you rolled your student loan into a bank line of credit to get a lower rate, the interest is no longer eligible).
The Carry-Forward Rule
Here’s the part most people miss: you can carry forward unused student loan interest for up to five years. So if you don’t have enough tax payable this year to use the credit (perhaps because your tuition credits already wiped out your tax), you can save the student loan interest credit and use it in a future year when your income (and your tax bill) is higher.
Pro Tip: Think twice before consolidating your government student loans into a private lending product. You might save a fraction on interest rate but lose the tax credit entirely. Over the life of the loan, the credit can be worth more than the rate savings.
The First Home Savings Account (FHSA): Start Early, Save Tax-Free
The FHSA is one of the best tax-advantaged savings tools introduced in recent years, and it’s tailor-made for new grads who might want to buy their first home in the next few years.
What Is the FHSA?
Introduced in 2023, the First Home Savings Account is a registered account that combines the best features of an RRSP and a TFSA. Contributions are tax-deductible (like an RRSP), and qualifying withdrawals to purchase your first home are completely tax-free (like a TFSA). It’s the only registered account in Canada that offers both a deduction going in and tax-free growth and withdrawals coming out.
Key Rules
- You must be a Canadian resident, at least 18 years old, and a first-time home buyer (you haven’t owned a home you lived in at any time in the current year or the preceding four calendar years).
- Annual contribution limit: $8,000 per year.
- Lifetime contribution limit: $40,000.
- Unused contribution room can carry forward up to $8,000 per year, to a maximum annual contribution of $16,000 in any single year.
- The account has a 15-year maximum lifespan (or until you turn 71, whichever comes first). If you don’t use it for a home purchase, you can transfer the balance to an RRSP or RRIF without affecting your RRSP room.
Why Open One Now, Even If You’re Not Ready to Buy
The clock on your 15-year window starts the day you open the account, and you get your full $8,000 of contribution room in that first year. If you don’t use it all, the unused portion carries forward to the next year (up to a maximum of $8,000 in carry-forward). So if you open an FHSA today and contribute nothing this year, next year you’ll have $16,000 of room available. Even if you can only put in $100 right now, opening the account preserves the maximum time horizon and starts the clock on building carry-forward room.
The tax deduction also doesn’t have to be claimed in the year of contribution. You can carry it forward and use it in a higher-income year when it saves you more tax.
Pro Tip: Yes, you can have an FHSA and use the Home Buyers’ Plan (HBP) RRSP withdrawal for the same home purchase. The HBP limit was increased to $60,000 in the 2024 federal budget. Combining both can put up to $100,000 of tax-advantaged funds toward your down payment ($40,000 FHSA + $60,000 HBP per individual, doubled for couples).
The Bottom Line
Tax planning isn’t just for business owners and high-income earners. The habits you build now (filing on time, claiming every credit you’re entitled to, and using tax-advantaged accounts early) compound over your entire career. A little effort today can mean thousands of dollars in your pocket over the next decade.
If you have questions about your personal tax situation, we’re here to help.
- Jaret