Understanding the Harmonized Sales Tax (HST) in Ontario: A Comprehensive Guide

Introduction

The Harmonized Sales Tax (HST) in Ontario is one of the most important taxes for both consumers and businesses to understand. It combines the federal Goods and Services Tax (GST) with the provincial sales tax (PST) into one streamlined system.

In this guide, we’ll explain how HST works, the current Ontario HST rate, exemptions, and special rules. We’ll also outline what businesses need to know about registering, collecting, and remitting HST.

What Is the HST in Ontario?

The HST is a value-added tax that merges the 5% federal GST with Ontario’s 8% PST. Together, they create a 13% combined tax rate, applied to most goods and services in the province.

Therefore, instead of calculating GST and PST separately, Ontario consumers and businesses pay and remit a single tax.

How the HST Is Applied

The HST generally applies to:

Retail sales → furniture, clothing, electronics, and more
Services → legal, accounting, repairs, entertainment, and renovations
Real estate → new or substantially renovated homes (resale homes are exempt)

Example 1: Retail Goods
If you buy an item for $100, HST adds $13. Your total cost is $113 ($5 federal + $8 provincial).

Example 2: Services
If a contractor charges $1,000 for renovations, HST adds $130. The final bill is $1,130.

As a result, nearly every transaction in Ontario includes HST unless it falls under an exemption.

Exemptions and Special Rules

While most transactions include HST, several categories are either zero-rated or exempt.

Zero-Rated Goods and Services (0% HST)

HST technically applies, but at a 0% rate:

Basic groceries (milk, bread, fruits, vegetables)
Prescription medications and most medical devices
Certain agricultural products

Exempt Goods and Services (No HST)

HST does not apply, and providers cannot claim input tax credits:

Used residential housing
Childcare services
Educational services (tuition)
Financial services (banking, insurance)

Point-of-Sale Rebates

Ontario offers rebates on specific items. For example, children’s car seats and feminine hygiene products receive a rebate at checkout, so consumers do not pay the full 13%.

HST and Businesses in Ontario

For Ontario businesses, HST compliance is critical. Any business that sells taxable goods or services and earns more than $30,000 annually must:

Register for an HST number with the CRA
Charge HST on taxable sales
Remit collected HST to the CRA

In addition, businesses can claim input tax credits (ITCs) to recover HST paid on business expenses.

Example – Input Tax Credit (ITC):
A business buys office furniture for $2,000 and pays $260 in HST. Later, it collects $1,300 HST from clients. Instead of remitting the full $1,300, it deducts the $260 as an ITC. The net remittance is $1,040.

As a result, ITCs prevent double taxation and lower business costs.

HST Filing and Remittance

Businesses must file HST returns with the CRA. The filing frequency depends on revenue:

Annual → revenues under $1.5 million
Quarterly → revenues between $1.5M and $6M
Monthly → revenues above $6M

However, even small businesses sometimes choose more frequent filing to improve cash flow.

Failure to file or remit HST on time may lead to penalties and interest charges.

Historical Context: Ontario’s Shift to HST

Ontario adopted the HST on July 1, 2010, replacing its separate PST system. Previously, Ontario had an 8% PST applied only to goods, while GST applied to most goods and some services.

With the HST, consumers began paying tax on services and products that were previously PST-exempt. While the change faced opposition, the government emphasized that the harmonized system would simplify compliance and reduce hidden taxes in supply chains.

Consequently, the HST remains Ontario’s main sales tax today, providing both efficiency and consistency.

Key Tips for Businesses Managing HST

Register early → Businesses earning over $30,000 must register with the CRA.
Keep accurate records → Track HST collected and ITCs claimed.
File on time → Avoid penalties by respecting CRA deadlines.
Communicate with clients → Show HST clearly on invoices.
Consult professionals → Accountants or bookkeepers can help optimize HST compliance.

Conclusion

The HST in Ontario is a 13% combined sales tax, made up of 5% GST and 8% provincial tax. It applies to most goods and services, though there are exemptions for groceries, medications, childcare, and financial services.

For consumers, understanding HST helps manage household budgets. For businesses, proper registration, collection, and remittance are essential to remain compliant and avoid penalties.

In summary, whether you’re shopping in Ontario or running a business, knowing how the Harmonized Sales Tax works is vital for financial planning. For complex cases or detailed exemptions, consult the CRA or a tax professional.

How much is HST in Ontario?