Canada Tax Refund Calculator 2026

How a Canadian tax refund is calculated

A tax refund is the difference between the tax already paid during the year and the tax you actually owe once your return is assessed. If more was deducted at source than you owe, the CRA refunds the difference; if less, you have a balance owing. The two numbers you need are on your T4: box 14 (employment income) and box 22 (income tax deducted).

Here is a typical case. An Ontario employee earning $70,000 has tax deducted all year as if they had no deductions. In February they put $5,000 into an RRSP. Their payroll never saw that contribution, so the refund is roughly the tax the deduction saves: about $1,482, or 29.6% of the contribution. Enter your own slips in the calculator above to see your figure.

Common reasons you get a refund, or owe tax

Payroll withholding assumes your pay is your only income and lasts all year. Anything that breaks that assumption moves your result:

• Refund: RRSP contributions made outside payroll, union or professional dues, child care expenses, moving expenses, tuition, medical expenses, charitable donations.
• Refund: working only part of the year. Payroll taxes each cheque as if the salary continued all year, so a student with only a summer job often gets much of the tax back.
• Refund: overpaid CPP or EI after changing jobs, which the CRA refunds when you file.
• Owe: two jobs at once, each claiming the basic personal amount on its TD1.
• Owe: investment income, rental income, a side business or an RRSP withdrawal where the withholding (10% to 30% outside Quebec) was below your marginal rate.
• Owe: moving to a higher-tax province before December 31; the new province taxes the whole year.

When can I start filing taxes in Canada?

For 2025 returns, the CRA's NETFILE service opened at 6 a.m. Eastern time on February 23, 2026. You can file electronically from that date with CRA-certified software; NETFILE also accepts initial returns for 2018 to 2025. Filing early does not change how much tax you owe, but it gets your refund sooner and keeps benefit payments, such as the Canada child benefit, flowing without a gap.

Wait until you have all your slips before filing. Employers and financial institutions issue T4, T5 and other slips after the year ends. If you file before a slip arrives and later find it, you have to change your return.

How long does it take to get a tax refund in Canada?

The CRA's service standard is to process 95% of electronically filed individual returns within 4 weeks and 95% of paper returns within 8 weeks. Non-resident returns are processed within 16 weeks, and the standard does not apply to returns for deceased, bankrupt or emigrant individuals. If you are a Canadian resident, the CRA asks you to wait 12 weeks before calling about a refund.

Quebec residents receive two refunds. Revenu Québec says it generally issues refunds within 14 days of an online return and 28 days of a paper return, but processing does not start until March, so a return sent in February still waits.

Your refund can be smaller than expected, or held, if you owe money to the CRA, have unpaid GST/HST returns, or owe certain other federal, provincial or territorial debts; the CRA keeps the refund to pay them. It does not pay refunds of $2 or less. If your refund is late, the CRA pays compound daily interest starting from the latest of 30 days after the balance-due date, 30 days after you filed, or the day you overpaid.

Filing your return: steps and deadlines

If you owe and file late, the CRA charges 5% of the balance owing plus 1% for each full month late, up to 12 months. If you were charged a late-filing penalty in one of the three previous years and received a demand to file, the penalty rises to 10% plus 2% a month, up to 20 months. If you are due a refund there is no penalty, but you delay the money and risk interrupting benefits that depend on your return.

• Gather slips: T4 (employment), T4A, T5 (investment income), T3, T5008, RRSP receipts, tuition (T2202) and donation and medical receipts.
• Choose a method: certified software through NETFILE, a tax preparer through EFILE, or paper. Quebec residents also file a TP-1 with Revenu Québec, online through NetFile Québec or by mail.
• Check the RRSP deadline: contributions made by March 2, 2026 could be deducted on the 2025 return.
• File and pay by April 30. Self-employed people and their spouses have until June 15 to file, but any balance is still due on April 30.
• Read your notice of assessment. It confirms the refund and shows your RRSP limit for the next year.