Not tax advice. Computation tools only. Have a professional review before filing.
tax-calendar/ca/ca-self-employed-june-15
CASelf-employed

T1 Self-Employed Filing Deadline

Extended filing deadline for Canadian self-employed individuals. Note: balance owing was due April 30 — interest accrues from May 1.

Filing deadline

June 15, 2026

Country
Canada
Tax year
2025
Payment deadline
2026-04-30

What is this deadline?

Self-employed Canadians (and their spouses/common-law partners) can file their T1 return up to June 15, 2026 — but any tax owing was due April 30 and is accruing interest.

What people miss

  • Only the filing deadline is extended — the payment deadline is always April 30
  • T2125 Statement of Business Activities is the main schedule
  • GST/HST registration required once revenue exceeds $30k/year

Prepare this return with open-source skills

These skills are in the OpenAccountants repo. Clone them into Claude, Cursor, or any AI agent and they handle the computation.

This page is informational only and not tax advice. Verify dates and requirements against the official tax authority before filing.