2026 Tax Filing Deadlines You Need to Know

Missing a CRA deadline can mean penalties and interest — even if you don\’t owe much. Here are the key dates to have on your calendar.

Personal Tax Returns

Most individuals must file by April 30. If you or your spouse are self-employed, the filing deadline extends to June 15 — but any balance owing is still due April 30.

Quarterly Installments

If you owe more than $3,000 in tax two years in a row, the CRA may require quarterly installments due March 15, June 15, September 15, and December 15.

Corporate Returns

Corporations must file within six months of their fiscal year-end, though any balance owing is typically due within two or three months depending on the corporation type.

Not sure which deadlines apply to you? We track them for every client so nothing slips through the cracks.

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