INSTITUTION · CANADA

Canada Revenue Agency (CRA)

CA Canada3 guidesOfficial-source workflow

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Procedures

Published guides connected to this institution.

2026 GUIDE

How to Change a Canadian Tax Return After You Have Already Filed It

If you discover missing income, a deduction, credit, expense or tax slip after filing your Canadian T1 return, wait for your notice of assessment and request an adjustment instead of filing a second return.

Online No CRA fee to request a T1 tax ret CRA currently lists routine online

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2026 GUIDE

How to Set Up a CRA Payment Arrangement When You Cannot Pay Your Tax Debt

If you cannot pay a CRA tax debt in full, you may be able to arrange smaller payments over time online or by phone based on what you can afford.

Online No fee to request or set up a CRA No fixed processing time is publis

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2026 GUIDE

How to register for a GST/HST account with the CRA

Learn when a Canadian business must register for GST/HST, the $30,000 small supplier threshold, voluntary registration rules, effective dates, Business Number requirements and how to register with the CRA.

Online No CRA fee to register for a Busin Online registration through Busine

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