Invoice

Accounting

An invoice is a document a seller issues to a buyer requesting payment for goods or services, listing amounts, terms, and any GST/HST charged.

An invoice is the formal request for payment and the source document behind a sale. It records what was sold, the amount, payment terms, and, for registered businesses, the GST/HST charged. The invoice date drives revenue recognition under accrual accounting and the period in which sales tax becomes payable.

Invoices must meet CRA content requirements to support a buyer's input tax credit claim, including the seller's GST/HST number for larger amounts. Well-organised invoicing underpins accurate receivables tracking, timely collection, and a clean audit trail.

Example

A consultant issues an invoice for $2,000 plus $260 HST, due in 30 days. The invoice date determines when the $2,000 is recognised as revenue and when the $260 HST must be remitted, regardless of when the client pays.

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The seller's name, date, amount, and the tax charged. For amounts above set thresholds it must also show the seller's GST/HST registration number so the buyer can claim input tax credits.
Under accrual accounting the invoice date recognises revenue, and the GST/HST becomes payable based on that date, even before the customer pays.
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Invoice: The Questions People Search

The questions Canadians actually search on this topic, answered plainly. Browse every question in the Canadian tax answers directory.

The basic personal amount is a non-refundable credit that shelters a base level of income from federal tax, so income below it carries no federal tax. The amount is indexed every year, and the enhanced portion is phased out across the second-highest federal bracket, so taxpayers in the top bracket receive only the base amount. Each province and territory sets its own version. On Form TD1 you claim it so your employer withholds less; claim it with one employer only, or too little tax is withheld.

Current and prior-year forms and publications are free to download from canada.ca, and tax software builds most of them for you as you enter your information. You can also order a paper package by phone or pick one up at participating postal and service outlets during filing season. Which forms apply depends on your situation: a T1 with your slips for employment income, T2125 for self-employment, a T2 for a corporation, T1-ADJ to change a return already filed.

A tax credit reduces the tax you owe, whereas a deduction reduces the income the tax is calculated on. Non-refundable credits, such as the basic personal amount or tuition, can bring tax down to nil but pay nothing beyond that. Refundable credits, such as the GST/HST credit, are paid out even when no tax is owing. Almost every credit is claimed on the return, so filing is what releases the money.

Canadian sellers advertise pre-tax prices and add GST, HST or provincial sales tax at the till. Nothing requires tax-included pricing, rates differ by province, and taxability depends on what is sold: one trip to the till can mix fully taxable goods, zero-rated goods such as basic groceries, and exempt supplies. Fuel is the exception — the price posted at the pump already contains the fuel taxes and the GST or HST, so nothing is added when you pay.

Udit Gupta, founder of Tax Filings Canada

Reviewed and fact-checked by Udit Gupta

Ex Big 4 — Ernst & Young, Deloitte · International & cross-border tax specialist · CPA Canada (In-Depth Tax Program) · Chartered accountant, ICAI & MIA

Udit Gupta has over 15 years of experience helping corporations and business owners with corporate structuring, corporate tax filing, bookkeeping, payroll, GST/HST, cross-border tax and CRA representation. Big 4 trained at Ernst & Young and Deloitte, and qualified as a chartered accountant in India and again in Malaysia, he founded his accounting practice in 2014 to serve entrepreneurs, startups and non-resident business owners across Canada. View full member bio.

The Institute of Chartered Accountants of India — member 521458 · Malaysian Institute of Accountants — member CA 44667 · Ex Big 4: Ernst & Young, Deloitte · CPA Canada (In-Depth Tax Program), completed 19 Dec 2023 · In-Depth GST/HST Part I, 12 Jul 2022 · Part II, 5 Jul 2023

Editorial policy. Every page is researched against primary sources — the Income Tax Act, CRA publications and CPA Canada guidance — and every rate or threshold is stated with the tax year it applies to.

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