When you create an invoice, small mistakes can delay payment and complicate your records. A complete invoice helps customers approve payment faster and makes your records easier to manage later. 

With accounting software like Intuit QuickBooks, you can prepare invoices faster, track taxes more accurately, and keep payment records tied to your books.

In this guide, see how to create and send an invoice, what to avoid, and where Intuit QuickBooks can help simplify the invoicing process.

Table of contents:

• What is an invoice?
• What to include on a Canadian invoice
• How to create an invoice (step-by-step)
• Download the free invoice templates for Canadian small businesses
• Common mistakes to avoid when creating an invoice
• How Intuit QuickBooks makes invoicing easier for Canadian small businesses
• Create invoices today with Intuit QuickBooks
• Frequently asked questions

What is an invoice?

An invoice is a document that asks your customer to pay for goods or services that you have already delivered. It records what was sold, how much is owed, when payment is due, and any tax that applies.

Invoices are different from receipts. An invoice asks for payment first. A receipt confirms that payment has already been made. If you need a quick refresher on invoicing basics, it helps to think of the invoice as the request and the receipt as the proof.

In Canada, tax details matter too. If your business is registered for GST/HST, your invoice should clearly show the tax charged and, where necessary, your GST/HST registration number.

What to include on a Canadian invoice

What should an invoice include? If you want faster approvals and fewer back-and-forth emails, your invoice needs to answer the customer’s main questions right away. Clearly show who is billing, what you provided, which tax applies, and how the customer should pay.

What to put on an invoice:

• Business and customer details: Add your business name, contact details, and the customer’s name and billing details. This helps the invoice reach the right person and makes recordkeeping easier on both sides.
• Invoice number and dates: Include a unique invoice number, the invoice date, and the payment due date. This gives you a clean audit trail and makes overdue follow-up much easier.
• Line items and pricing: List each product or service with a short description, quantity, rate, and line total. Clear descriptions reduce disputes and help the customer approve the invoice faster.
• Taxes and final total: Show the subtotal, the tax charged, and the final amount due. If tax is included in the price, say so clearly.
• Payment terms and methods: State when payment is due, which payment methods you accept, and any late-payment conditions. Customers are more likely to pay on time when the path is obvious.

Before you send the invoice, it helps to run through a quick compliance check. That means confirming that it includes the right tax details, registration information, and language or formatting requirements for the sale.

For Canadian businesses, this step can help prevent payment delays, filing issues, and avoidable tax errors.

What to check to keep your invoice compliant:

For up-to-date requirements, refer to the CRA’s registration rules and invoicing instructions. If you operate in Quebec, also review the province’s language guidelines.

How to create an invoice (step-by-step)

If you’re working through how to create an invoice template for the first time, a repeatable process usually helps more than a perfect design. 

The steps to create a clear, accurate, and easy-to-send invoice:

1. Add your business details: Include your business name, address, email, phone number, and Business Number if you are registered. This tells the customer who issued the invoice and how to contact you.
2. Add the customer details: Use the customer’s legal or operating name, billing address, and contact person when relevant. This reduces delays when invoices move through finance or operations teams.
3. Assign an invoice number and date: Use a numbering system that stays consistent, such as INV-2026-001. It makes searching, filing, and follow-up much easier.
4. List each product or service clearly: Break out each item with a short description, quantity, rate, and line total. If you bill for time, group the work in a way the customer can understand quickly.
5. Calculate the subtotal, tax, and final total: Add the subtotal first, then apply the correct tax for the province of supply. If you also need help, check the provincial sales tax rules before sending.
6. Add payment terms: Include the due date, accepted payment methods, and any late-payment terms. This is also the place to say if you accept partial payment or deposits.
7. Review and send the invoice: Check names, totals, tax, and dates one more time. Then, send it by email, through invoicing software, or by mail if the customer still needs a paper copy.

To bill for similar work each month, creating an invoice template from these steps can save time and keep your terms consistent. It also helps standardize reviews across multiple teams.

If you want the bookkeeping side of your business to stay connected to your billing workflow, Intuit QuickBooks accounting software can keep invoices, payments, and reports in one place.

Download the free invoice templates for Canadian small businesses

Our free invoice templates give Canadian small businesses a simple way to create professional invoices in Excel, Word, or PDF. They can help you standardize your layout, organize billing details, and build a template that works for one-time jobs, project billing, or recurring services.

What the templates include:

• Invoice formats: Excel, Word, and PDF options to match how you prefer to create and send invoices.
• Branding fields: Space for your logo, fonts, colours, and other brand details so the invoice feels consistent with your business.
• Invoice header: A clear invoice title and a unique invoice number field to help with tracking and recordkeeping.
• Business details: Space for your name, company name, email address, mailing address, and phone number.
• Customer details: Fields for your client’s name, company name, department (if needed), address, email, and phone number.
• Important dates: Fields for the issue date, project dates, delivery or service date, payment deadline, and any agreed terms.
• Line items: Space to describe goods or services clearly, including quantities, hours, rates, or other billable details.
• Totals section: Room for the subtotal, discounts, taxes such as GST/HST, and the final amount owing.

Easy to edit digitally, the templates are also formatted to be readable if you need to print them or fill them out manually.

Common mistakes to avoid when creating an invoice

A few small errors can slow payment more than most people expect. Here are the ones that tend to cause the most trouble:

• Missing tax details: If you leave out required tax information, you create problems for your own records and for customers who need clear backup for tax claims.
• Incorrect totals or rates: A math error can hold up approval and make your invoice look less reliable.
• No invoice number: Without a unique number, it becomes harder to track status, match payment, or follow up later.
• Vague descriptions: Generic line items lead to questions, and questions usually slow payment.
• Sending late: A late invoice can delay your cash flow, especially when customers pay on fixed cycles.
• Outgrowing manual invoicing: Spreadsheets and basic documents may work at first, but they can create more room for delays, discrepancies, and follow-up work once your invoicing volume starts to grow.

If a payment still slips past the due date, using payment reminder letter templates can help you follow up without rewriting the same message each time.

To manage long-running client accounts, billing statements can also help you show the running balance across multiple invoices.

How Intuit QuickBooks makes invoicing easier for Canadian small businesses

When people compare the best invoicing software, the deciding factor is often how well invoicing connects to the rest of the financial management workflow. For Canadian small businesses, that usually means taxes, payments, reporting, and cleaner records.

How Intuit QuickBooks makes invoicing easier to manage:

• Templates: Starts with a consistent format, so invoices look professional and include the right fields.
• Automation: Reduces manual entry by reusing customer details, recurring invoice setups, and connected records.
• Tracking: Makes invoice status easier to see, which helps teams follow up sooner.
• Payments: Supports faster online payments by giving customers simpler ways to pay.
• Visibility: Keeps invoices tied to reports, which makes GST/HST returns and month-end review easier to manage.

Businesses looking to cut back on repetitive admin can use Intuit Intelligence to help streamline their invoicing workflow. Strong business finance and accounting practices can also help make invoicing part of budgeting, forecasting, and reporting.

If payment delays still create pressure, it may also be worth understanding how invoice factoring works. This isn’t a replacement for healthy invoicing habits, but partnering with a factoring company can be part of a wider cash flow plan for your business.

Create invoices today with Intuit QuickBooks

Once you know how to create an invoice, the process becomes easier. You need the right details, the right tax, and a clear payment timeline.

With accounting software like Intuit QuickBooks, you can create invoices faster, track payment status, and keep billing records connected to the rest of your books.

For day-to-day invoicing, see how QuickBooks invoicing software helps Canadian businesses stay organized, reduce manual work, and create a more reliable billing process.