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Canadian sales tax calculator — instant by province
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Use this GST/HST calculator to add Canadian sales tax to a pre-tax amount or remove tax from a tax-included total by province. It is a retail/planning calculator, not a taxability ruling, filing calculation or substitute for CRA, Revenu Quebec or provincial guidance.
Jump to the calculator ↓Official CRA, Revenu Québec, and provincial sales tax rates. Instant math, zero sign-up wall, and zero lead-gen forms.
If your invoice or receipt total already includes sales tax, use our dedicated reverse calculation tool to separate pre-tax cost from GST, HST, PST, or QST.
Remove Tax From Total Calculator →Find exact provincial rules and bracket rates for BC (5% GST + 7% PST), Ontario (13% HST), and Quebec (5% GST + 9.975% QST).
View Full 2026 Sales Tax Table →Connect sales tax calculations with take-home earnings and income tax.
Calculate personal income tax and CPP/EI payable after GST/HST collections.
Review corporate vs personal tax brackets across Canadian provinces.
Read CRA input tax credit (ITC) and expense write-off guidelines.
How Canadian freelancers, small businesses, and consumers navigate sales tax collection, deductions, and refunds:
| Scenario / Rule | CRA Statutory Threshold | Financial Consequence | Recommended Action |
|---|---|---|---|
| Small Supplier Exemption | Gross revenue under $30,000 in last 4 consecutive calendar quarters | No obligation to register or charge GST/HST; cannot claim ITCs | Register voluntarily if upfront commercial startup expenses are high to recover GST/HST paid. |
| Input Tax Credits (ITCs) | Eligible commercial business operating expenses (rent, software, tools) | 100% of GST/HST paid is refunded or offset against sales tax collected | Keep itemized receipts showing seller's 9-digit Business Number (BN) for purchases $100 and above (full invoice details required for $500+). |
| CRA Quick Method | Worldwide annual taxable supplies under $400,000 | Charge full GST/HST, remit only ~8.8% to 10.4%, keep remainder as income | Ideal for service businesses with low overhead and few physical input costs. |
| Zero-Rated vs Tax-Exempt | Zero-rated: 0% tax (groceries, exports); Exempt: childcare, healthcare | Zero-rated allows claiming ITCs; Exempt prohibits claiming ITCs | Ensure invoices clearly specify 0% zero-rated status so foreign clients aren't mistakenly billed domestic HST. |
Under Canada Revenue Agency (CRA) place-of-supply rules, calculate sales tax based on the customer's location, not where your business is based:
Multiply your pre-tax billable subtotal by the buyer's provincial tax rate:
Example (Ontario 13% HST): $1,000 subtotal × 0.13 = $130 HST. Total invoice = $1,130.
When an invoice or quote already includes tax, divide by (1 + Tax Rate):
Example (Ontario 13% HST): $1,130 total ÷ 1.13 = $1,000 subtotal ($130 HST portion).
Taxable, zero-rated and exempt treatment depends on the product or service. Confirm business filing decisions with CRA, Revenu Quebec or a tax professional.
Rates, worked examples and a full GST/PST/HST breakdown for each province and territory.
Interest rates shown on UseCOS tools come from Bank of Canada data and carry the date the Bank published them. Tax figures follow the Canada Revenue Agency's published rules for the tax year shown. Other benchmarks are drawn from OSFI and provincial regulators. Always confirm current figures at the official source.
UseCOS provides transparent educational estimates and math comparisons for personal planning. Tools do not guarantee lender approval, tax compliance, or specific mortgage terms.
For binding mortgage rate commitments, loan contracts, or official tax filings, please consult a licensed Canadian mortgage broker, CPA, or official lender representative.
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