US Sales Tax vs. Canadian GST/HST/PST: What Accounting Teams Need to Know

Introduction

When your company starts selling into Canada, your accounting team has to learn a new tax vocabulary. The invoices and customers look familiar. The acronyms don't: goods and services tax (GST), harmonized sales tax (HST), provincial sales tax (PST), and Quebec sales tax (QST). Understanding US sales tax vs. Canadian GST/HST/PST is the first step to keeping your invoices accurate once Canadian transactions hit your books.

This guide covers what each Canadian tax is, how the Canadian model differs from US sales tax, and what the difference means for your invoicing, reporting, and system setup.

This article is for general information only. It is not formal tax or legal advice.

The Basics: GST, HST, PST and QST Explained

Canadian sales tax is built from a small set of tax types. For GST/HST, place-of-supply rules determine the province or territory where a supply is made and the rate that generally applies. Separate provincial taxes have their own rules.

GST (Goods and SerTeresa Farnsworthvices Tax)

GST is a federal sales tax. The current GST rate is 5%. In provinces and territories that have not harmonized their provincial tax with the GST, taxable supplies generally carry the 5% GST plus any separate provincial sales tax that applies. This federal layer is the biggest structural difference from the US system.

HST (Harmonized Sales Tax)

HST combines the federal GST and a provincial portion into one single tax. The participating provinces are Ontario, New Brunswick, Newfoundland and Labrador, Nova Scotia, and Prince Edward Island. As of 2026, the HST rate is 13% in Ontario, 14% in Nova Scotia, and 15% in New Brunswick, Newfoundland and Labrador, and Prince Edward Island. In provinces that use HST, such as Ontario, your invoice shows one combined tax rather than separate GST and provincial sales tax amounts.

PST (Provincial Sales Tax)

PST is a provincial sales tax that some provinces charge separately from the federal GST. In British Columbia, the general PST rate is 7%, while Saskatchewan's PST rate is 6%. Manitoba uses a similar separate provincial tax called Retail Sales Tax (RST), with a general rate of 7%. Your team may need to track and report the federal and provincial taxes separately, depending on where you sell and what you sell.

QST (Quebec Sales Tax)

Quebec uses its own provincial tax, the QST. The current QST rate is 9.975%, while the federal GST rate is 5%. Revenu Québec administers both the QST and, under an agreement with the federal government, the GST/HST in Quebec. A taxable sale in Quebec can involve both the federal GST and the provincial QST, but they remain separate taxes.

Canadian rates and the list of provinces using each system have changed over the years. Before you set up rates in your systems, confirm current details against a primary source such as the CRA or Revenu Québec. You can also use a reliable, regularly updated rate source.

How US Sales Tax vs. Canadian GST/HST/PST Differs

In both countries, a sale can be taxed at more than one level of government. How those levels are organized is quite different, though.

No federal sales tax in the US

The US has no federal sales tax. Sales tax is set at the state level, and local jurisdictions can add their own rates on top. A jurisdiction is any government body with the authority to levy a tax, such as a state, county, city, or special district.

Canada applies the 5% GST in non-participating provinces and territories, while participating provinces use HST, which combines the federal and provincial components into one tax.

Fewer layers, different complexity

A single US address can be subject to state, county, city, and special district rates. A special district is a local taxing area, such as a transit or improvement district, that can cross city and county lines. That is why rates in the US can differ between nearby addresses, including addresses within the same ZIP code.

In Canada, the main variable is the province or territory. The difficulty shifts away from tracking many local rates and toward knowing which tax structure applies (HST, GST alone, GST plus a separate provincial tax, or GST plus QST) and how each one should appear on the invoice.

Different administrators

In the US, your team deals with state tax authorities, and each state has its own filing rules. In Canada, the CRA generally administers GST and HST, while separate provincial sales taxes are administered by provincial authorities. Quebec is an important exception: Revenu Québec administers both the GST/HST and QST for businesses that fall under its administration. Depending on where you sell, you may have more than one agency to report to.

Quick comparison

• US: state and local sales tax only, with no federal layer, and rates can vary down to the special-district level.

• Canada:a federal GST that is either combined into a harmonized tax (HST) or charged alongside a separate provincial tax such as PST, Manitoba RST, or QST. Some provinces and territories apply only the 5% GST.

• US terminology: sales tax, use tax, nexus, jurisdiction.

• Canadian terminology: GST, HST, PST, QST, RST.

What This Means for Your Accounting Workflow

The terminology is new, but the operational problem is not. Whether you sell in Texas or Quebec, your team needs the right rate on every transaction, consistency across every system, and a clean audit trail. The tax structure may differ, but accurate invoicing and reporting still depend on applying the correct tax treatment for the transaction.

Here is where Canadian sales often cause trouble in existing workflows.

Invoicing

Your invoice templates may be built for one sales tax line. Canadian transactions may need separate GST and provincial tax amounts, such as PST or QST, or a single HST amount, depending on the province and the transaction. If HST applies, CRA guidance says to show the total HST rather than separating its federal and provincial portions. If your system can't tell these apart, errors can show up on customer invoices.

Accounts receivable and reporting

When federal and provincial taxes apply separately, your team may need to track them separately for reporting and reconciliation. Clear tax codes in your general ledger can help keep the amounts organized and support accurate returns. CRA also requires GST/HST registrants to maintain supporting records for amounts reported and claimed.

System setup

The biggest risk is inconsistency. Your ERP, e-commerce platform, and billing system might each hold a slightly different Canadian rate, and when that happens, you have a reconciliation problem and an increased risk of reporting errors.

A practical checklist for your team

• Confirm which provinces and territories you sell into and which tax structure applies in each.

• Set up separate tax codes for federal and provincial components where they apply separately.

• Update invoice templates to display Canadian taxes correctly.

• Pick one source of truth for rates so every system uses the same data.

• Set a regular review schedule so rate changes are caught before they reach your invoices.

To keep your accounting data clean, start by choosing a single source of truth for sales tax rates so every system is using the same, accurate information. That applies to Canada just as much as to the US.

Finding Accurate Canadian Rates

Once your team understands the structure, the next step is getting accurate, current rates into your systems. We maintain province-level sales tax information to help your team check rates and understand which tax structure applies in each province:

• Quebec: Quebec sales tax rates (GST + QST)

• Ontario: Ontario sales tax rates (HST)

• British Columbia: British Columbia sales tax rates (GST + PST)

• All provinces at a glance: Canada sales tax map

If your company sells on both sides of the border, Zip2Tax offers options for bringing U.S. and Canadian rate data into your accounting systems. Sales & Use Tax Tables provide downloadable rate data for U.S. and Canadian taxes, while Zip2Tax also offers a Canada sales tax API for businesses that need an integrated rate-data connection.

Frequently Asked Questions

Does the US have a federal sales tax like Canada's GST?

Great question. No. The US does not have a federal sales tax. Sales taxes are imposed at the state and, where applicable, local levels. Canada's GST is a federal tax that applies at 5% in non-participating provinces and territories, while participating provinces use HST, which combines federal and provincial components.

What's the difference between HST and GST plus PST?

HST combines the federal and provincial portions into one tax. Under GST plus PST, the two taxes stay separate, and your team may need to track and report each one individually. The applicable structure depends on the province or territory and the transaction.

Why is Quebec different?

Quebec uses its own provincial tax, the QST, alongside the federal GST. Under an agreement with the federal government, Revenu Québec administers both the GST/HST and QST in Quebec for most businesses subject to those systems.

How can my accounting team keep Canadian rates accurate?

Great question. Use current rate information from reliable sources and make sure the same data reaches every system that calculates tax. Because the applicable GST/HST rate depends on the place of supply, your team should also confirm the province or territory and tax structure before applying a rate.

Keep Your Rates Accurate, on Both Sides of the Border

Expanding into Canada adds a different tax structure to your accounting workflow, but the need for accurate, current rate data stays the same. Zip2Tax provides U.S. and Canadian tax data through options including downloadable Sales & Use Tax Tables and API-based access for Canadian rates.

Use Sales & Use Tax Tables when your team needs downloadable U.S. and Canadian rate data, or explore Zip2Tax’s Canada API options when you need rate data integrated directly into your systems.