The T1, T2, T3, T4, and T5 tax forms in Canada are the core documents the federal tax system runs on. The T1 is the personal income tax return most Canadians file every spring. The T2 is the return every Canadian corporation files, active or not. The T3 covers trusts and estates. The T4 and T5 are information slips: your employer issues a T4 to report what it paid you, and your bank or brokerage issues a T5 to report interest, dividends, and other investment income. Knowing which of these applies to you, when it’s due, and what it actually tracks is what keeps a filing season from turning expensive.
T1: Personal Income Tax and Benefit Return
The T1 is the return for individuals. Under Section 150 of the Income Tax Act, you must file a T1 for any year you owe tax, realize a taxable capital gain, or dispose of capital property.1Justice Laws Website. Income Tax Act – Section 150 It captures worldwide income, not just what you earned in Canada: employment wages, freelance revenue, investment gains, rental income, and foreign earnings all go on the T1.
The standard deadline is April 30 of the following year. If you or your spouse are self-employed, you have until June 15 to file, but any balance owing is still due April 30.2Canada.ca. Due Dates and Payment Dates – Personal Income Tax Miss the payment date and compound daily interest starts running on whatever you owe.3Canada.ca. Interest and Penalties on Late Taxes
File Even When You Owe Nothing
If your income is low or zero, filing a T1 is still how you access benefits. The GST/HST credit won’t be paid unless you file every year, even with nothing to report.4Canada.ca. How to Get the Credit – GST/HST Credit The same is true for the Canada Child Benefit and certain provincial credits. Filing also establishes your RRSP contribution room for future years.
Late-Filing Penalties
File late with a balance owing and the penalty is 5% of the unpaid tax plus 1% for each full month the return is late, up to 12 months.3Canada.ca. Interest and Penalties on Late Taxes It gets worse for repeat offenders. If the CRA sent you a formal demand to file and you were already penalized for late filing in any of the three previous years, the base jumps to 10% plus 2% per month for up to 20 months.5Justice Laws Website. Income Tax Act – Section 162 On a $5,000 balance, a repeat late filer can rack up over $2,500 in penalties before interest.
T2: Corporation Income Tax Return
Every corporation incorporated in Canada must file a T2 for every tax year, whether it earned revenue or sat completely dormant. Non-profits, tax-exempt corporations, and inactive companies are included. The only exceptions are tax-exempt Crown corporations, Hutterite colonies, and registered charities.6Canada.ca. Corporation Income Tax Return
For tax years starting after 2023, electronic filing is mandatory.7Canada.ca. T2 Short Return The T2 uses the General Index of Financial Information, a standardized set of codes for reporting the balance sheet and income statement, with schedules attached to reconcile accounting profit with taxable income and report items like shareholder loans.8Canada.ca. Filing Your T2 Return Electronically Using Certified Software
T2 Short Return
A simpler T2 exists, but eligibility is narrower than most business owners expect. Only two categories qualify: Canadian-controlled private corporations with nil net income or a loss for the year, and corporations exempt from tax under Section 149, like non-profits.9Canada.ca. T2 Corporation – Income Tax Guide – Before You Start On top of that, the corporation must have a permanent establishment in only one province or territory, must not be claiming refundable tax credits, must not have paid or received taxable dividends, and must report in Canadian currency. Miss any one of those and you file the regular T2.
Filing Deadline
The T2 is due within six months of the end of the corporation’s fiscal year, which is not necessarily the calendar year. Fiscal year ends on the last day of a month, you file by the last day of the sixth month after; ends mid-month, you file by the same calendar date six months later.10Canada.ca. When to File Your Corporation Income Tax Return The late-filing penalty mirrors the personal one: 5% of the unpaid balance plus 1% per full month, escalating to 10% plus 2% per month for repeat offenders.11Canada.ca. Avoiding Penalties
T3: Trust Income Tax and Information Return
The T3 applies to estates and trusts that earn income or distribute property to beneficiaries. Under Section 150(1)(c) of the Income Tax Act, a trust must file within 90 days of the end of its tax year.1Justice Laws Website. Income Tax Act – Section 150 For an estate with a December 31 year-end, that means a March 31 deadline.
The return identifies the trust type, either testamentary (created by a will) or inter vivos (set up during someone’s lifetime), and breaks down the income allocated to each beneficiary. Trustees report their own details alongside the names and shares of every beneficiary receiving distributions, so the CRA can tax investment earnings and wealth transfers at the right level, either inside the trust or on the beneficiaries’ personal returns.
Expanded Rules for Bare Trusts and Express Trusts
Since 2023, bare trusts and most other express trusts resident in Canada must file a T3 even when there is no tax owing. A handful of exceptions apply: trusts that have existed for less than three months, trusts holding only listed securities or similar financial assets worth $50,000 or less throughout the year, registered plans like RRSPs and TFSAs, registered charities, mutual fund trusts, and graduated rate estates are among the categories carved out.1Justice Laws Website. Income Tax Act – Section 150 Fall outside those carve-outs and skip filing, and Section 162(5) of the Income Tax Act allows a $100 penalty for each piece of missing information.5Justice Laws Website. Income Tax Act – Section 162
T4: Statement of Remuneration Paid
The T4 is the slip your employer sends you each year showing what you were paid and what was withheld. Employers must prepare one for every employee who received compensation during the calendar year.12Canada.ca. T4 Slip – Information for Employers Box numbers on the slip map directly to specific lines on your T1.
The boxes worth knowing:
- Box 14 is your total employment income, reported on line 10100 of your T1.
- Box 16 is your CPP contributions, used on Schedule 8.
- Box 18 is your EI premiums, reported on line 31200.
- Box 22 is the income tax your employer already deducted and sent to the CRA, reported on line 43700.
Box 22 is what ultimately decides whether you get a refund or owe more at filing time; it’s what the CRA has already collected from your paycheques.13Canada.ca. T4 Slip – Statement of Remuneration Paid If the numbers on your T4 don’t match your own records, sort it out with your employer before filing. The CRA cross-references employer-reported figures against your return, and mismatches can trigger reviews or reassessments.
T5: Statement of Investment Income
Banks, brokerages, and corporations issue T5 slips to report interest, dividends, and royalties paid to investors during the year. A T5 is generally required when the total investment income paid to a single recipient exceeds $50.14Canada.ca. T5 Guide – Return of Investment Income Below that threshold the institution may not send a slip, but you still have to report the income.15Canada.ca. Line 12100 – Interest and Other Investment Income This is where taxpayers routinely under-report: small amounts of interest from savings accounts or GICs that don’t trigger a slip are still taxable.
The key boxes on a T5:
- Box 13 reports interest from Canadian sources.
- Boxes 24, 25, and 26 cover eligible dividends. Box 25 is the taxable amount you report; Box 26 is the federal dividend tax credit you claim.
- Boxes 10, 11, and 12 cover other (non-eligible) dividends from Canadian corporations, with Box 11 as the taxable amount.
- Box 18 reports capital gains dividends on Schedule 3.
The distinction between eligible and non-eligible dividends matters because each carries a different gross-up percentage and tax credit, which changes your effective tax rate on that income.16Canada.ca. T5 Statement of Investment Income – Slip Information for Individuals Gather every T5 before you file. The CRA already has copies from the issuers, and missing investment income is one of the easiest things for them to catch.
How to File and What Comes Next
For personal T1 returns, the CRA’s NETFILE system lets you file electronically using certified tax software. Professional preparers use EFILE to transmit returns on behalf of clients.17Canada.ca. Tax Software for Filing Personal Taxes Paper returns are still accepted, but processing time differs sharply. The CRA targets processing 95% of electronically filed returns within four weeks and paper returns within eight weeks, with longer timelines for returns selected for additional review.18Canada.ca. Check CRA Processing Times
Once your T1 is processed, the CRA sends a Notice of Assessment. The NOA confirms what you owe or what refund is coming, and flags any changes the CRA made, such as corrections to credits or adjustments to deductions.19Canada.ca. Notices of Assessment – NOA or NOR – Personal Income Tax It also updates your RRSP deduction limit, Home Buyers’ Plan balance, and Lifelong Learning Plan balance. Read it when it arrives. If you disagree with a change, you generally have 90 days from the date on the notice to file a formal objection.