CRA Tax Deadlines for Self-Employed Canadians 2026

CRA Self-Employed Tax Deadline: What You Actually Need to Know

If you earn self-employment income in Canada — whether as a sole proprietor, freelancer, independent contractor, or partner in a partnership — your CRA personal tax filing deadline differs from regular employees. But there is a critical catch that trips up thousands of taxpayers every year.

The CRA self-employed tax deadline for filing your T1 return is June 15, 2026. However, any balance owing on your taxes is still due April 30, 2026. Miss that payment date and you will owe interest, even if your return is not yet due.

T1 Filing Deadline: June 15 for Self-Employed

Under the Income Tax Act, individuals who are self-employed (or whose spouse or common-law partner is self-employed) have until June 15 to file their T1 Individual Income Tax and Benefit Return. For 2025 tax year returns filed in 2026, that means:

Filing deadline: June 15, 2026
Payment deadline: April 30, 2026

This extended filing deadline applies if you or your spouse/common-law partner earned business income as a sole proprietor or partner. It does not apply to incorporated businesses — those follow corporate T2 deadlines.

When June 15 falls on a weekend, the CRA considers the return filed on time if received on the next business day. In 2026, June 15 is a Monday, so there is no extension.

Source: CRA — Tax filing due dates

The Critical Distinction: Filing Date vs. Payment Date

This is the single most important thing self-employed Canadians must understand about their CRA filing deadline for self-employed returns:

Your tax payment is due April 30, regardless of your June 15 filing deadline.

If you file on June 10 but owe $5,000, interest has been accumulating on that amount since May 1. The CRA charges compound daily interest at the prescribed rate on any unpaid balance after April 30.

In practical terms, this means you should:

Estimate your tax owing before April 30
Pay that estimated amount by April 30
File your complete return by June 15
Reconcile any difference after filing

If you overpay, the CRA will refund the difference. If you underpay, you will owe interest only on the shortfall — not the full balance.

HST/GST Deadlines for Self-Employed

If your revenue exceeds $30,000 over four consecutive calendar quarters, you must register for an HST/GST account. Once registered, your filing deadlines depend on your reporting period:

| Reporting Period | Filing & Payment Deadline | |---|---| | Annual (most sole proprietors) | June 15 following the fiscal year-end | | Quarterly | One month after the end of each quarter | | Monthly | One month after the end of each month |

For annual filers with a December 31 fiscal year-end, the HST/GST return and payment are both due June 15, 2026 — aligned with your T1 filing deadline. Unlike the income tax split between filing and payment dates, the HST/GST payment deadline for annual filers is genuinely June 15.

However, if you are a quarterly or monthly filer, those deadlines come much sooner. A Q1 2026 return (January–March) would be due April 30, 2026.

Source: CRA — GST/HST filing and payment deadlines

For HST/GST specifically, see our guide on when HST is due in Canada.

CPP Contributions for Self-Employed

Employees split CPP contributions with their employer — each pays half. Self-employed individuals pay both halves. For 2026:

CPP contribution rate (self-employed): 11.9% (combined employee and employer portions)
Maximum pensionable earnings: $71,300 (estimated, pending CRA confirmation)
Basic exemption: $3,500
Maximum annual contribution (self-employed): Approximately $8,068

CPP contributions are calculated and paid when you file your T1 return. There is no separate CPP deadline — it is included in your April 30 balance owing. If you owe significant CPP each year, the CRA may require you to make quarterly installments.

Additionally, CPP2 (the second ceiling for enhanced CPP) applies to earnings above the first maximum. Self-employed individuals are responsible for both portions of CPP2 as well.

Source: CRA — CPP contribution rates and maximums

Quarterly Installment Requirements

The CRA requires quarterly tax installments if your net tax owing exceeds $3,000 in the current year and in either of the two preceding years. For Quebec residents, the threshold is $1,800.

2026 installment due dates:

March 15, 2026
June 15, 2026
September 15, 2026
December 15, 2026

The CRA will send you an installment reminder (Form INNS1) if they expect you to pay by installments. You can calculate installments using one of three methods:

No-calculation option: Pay the amount the CRA tells you on your reminder
Prior-year option: Base installments on last year's total tax owing
Current-year option: Estimate this year's income and calculate accordingly

If you miss an installment or pay less than required, the CRA charges installment interest. However, if you use the CRA's suggested amounts and they turn out to be wrong, you generally will not be charged interest.

Source: CRA — Paying your income tax by installments

Common Mistakes Self-Employed Canadians Make

Confusing the filing deadline with the payment deadline

As discussed above, June 15 is for filing only. Your money must be at CRA by April 30. This misunderstanding is the single largest source of unnecessary interest charges for self-employed filers.

Not setting aside money for CPP

Employees never see their CPP deductions — it comes off each paycheque. Self-employed individuals owe the full amount at tax time. Failing to budget roughly 12% of net self-employment income for CPP results in a painful surprise in April.

Missing the $30,000 HST/GST threshold

Once you cross $30,000 in revenue in any four consecutive quarters, you are required to register for HST/GST. The obligation is retroactive to the date you exceeded the threshold — not the date you noticed. Late registration means you owe HST/GST on sales you already collected without charging it.

Ignoring installment requirements

If you owed more than $3,000 last year, you likely need to pay installments this year. The CRA charges interest on missed installments even if you pay everything by April 30. Installment interest cannot be offset by a refund on your final return.

Claiming personal expenses as business expenses

The CRA audits self-employed returns at a higher rate than T4 employment returns. Claiming personal cellphone bills, personal vehicle use, or home office space that does not meet CRA criteria will trigger reassessments, penalties, and interest.

Not keeping proper records

The CRA requires you to keep books and records for six years. For self-employed individuals, this includes all receipts, invoices, bank statements, and mileage logs. If you are audited and cannot produce documentation, the CRA will deny the deduction.

Plan Ahead: Use the Deadline Calculator

Every self-employed Canadian has a slightly different combination of deadlines depending on their business structure, revenue level, province, and whether they have employees.

Use the free CRA deadline calculator to find every deadline that applies to your business type.

For corporate tax deadlines, see the complete CRA filing deadlines guide.

Summary of Key 2026 Dates for Self-Employed

| Deadline | Date | What's Due | |---|---|---| | Tax payment (balance owing) | April 30, 2026 | Income tax + CPP | | T1 filing (self-employed) | June 15, 2026 | T1 return | | HST/GST annual return | June 15, 2026 | GST34 + payment | | Installments | Mar 15, Jun 15, Sep 15, Dec 15 | Quarterly payments |

Mark these dates now. The CRA does not waive interest because you forgot — and for self-employed Canadians, the April 30 payment deadline is the one that matters most.