2026
2026 filing guide
Key dates for 2025 personal returns and what to do if you are filing late.
Open filing guide →Practical tools
Tax & business resources
Quick reference information, an Ontario HST calculator, a printable tax checklist and links to official CRA resources.
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Printable tax checklist
A practical checklist for personal, student/newcomer, rental and self-employed tax records.
Open checklist →HST
Ontario HST calculator
Calculate 13% HST added to a price or separate HST from a tax-included total.
Use calculator ↓Convenience calculator
Ontario 13% HST calculator
Use this for a quick arithmetic check only. Whether HST applies, which rate applies and whether an input tax credit is available depends on the transaction and your circumstances.
Ontario's HST rate is 13%. This calculator performs basic arithmetic and is not tax advice.
Result
Before HST$100.00
HST$13.00
Total$113.00
Official sources
Go directly to the CRA for government information
Personal taxes
CRA information about personal income tax, filing and benefits.
Canada.ca personal tax →Business taxes
CRA information about business accounts, payroll, GST/HST and corporation tax.
Canada.ca business tax →GST/HST deadlines
CRA reporting requirements and due-date information for GST/HST registrants.
Canada.ca GST/HST →Need help applying the rules to your records?
General information is useful, but your return depends on your actual income, expenses and documents.