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
- Official
- Tax authority
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.
Use this skill whenever asked about a Canadian federal T1 General individual income tax return for a self-employed sole proprietor. Trigger on phrases like "T1 return", "personal tax Canada", "federal tax brackets", "basic personal amount", "CPP self-employed", "CPP2", "self-employment tax Canada", "net income", "taxable income", "federal tax calculation", "non-refundable credits", "instalment payments", or any question about computing federal tax for a self-employed individual in Canada. ALWAYS read this skill before touching any T1 return work.
Use this skill whenever asked about Canadian self-employment business income reported on Form T2125 (Statement of Business or Professional Activities). Trigger on phrases like "T2125", "business income Canada", "self-employed expenses", "CCA", "capital cost allowance", "home office Canada", "motor vehicle expenses CRA", "business-use-of-home", "sole proprietor Canada", "net business income", "business number BN", "fiscal year end", "GST ITC", or any question about computing, classifying, or reporting business income and expenses for a Canadian sole proprietor. Covers Parts 1-8 of T2125, allowable expenses, CCA classes and rates, AccII, business-use-of-home, motor vehicle expenses, GST/HST interaction, and net income computation. ALWAYS read this skill before touching any T2125 work.
This page is informational only and not tax advice. Verify dates and requirements against the official tax authority before filing.