The Ultimate Guide to HST for Small Business Owners in Ontario

Daryl Ching, CFA

Managing Partner at Vistance Accounting, as seen on BNN Bloomberg, Globe and Mail and Financial Post

If you run a small business in Ontario, you’ve probably heard the letters HST tossed around more times than you can count. But what does it really mean for your business? This guide breaks it all down, so you can feel confident about collecting, filing, and managing HST without losing sleep.

Let’s dive into the HST basics and beyond.


What Is HST?

HST stands for Harmonized Sales Tax, a combination of the federal GST (Goods and Services Tax) and the provincial PST (Provincial Sales Tax) into one single tax. In Ontario, the HST rate is 13%, with 5% going to the federal government and 8% to the province.

You’re generally required to charge HST on most goods and services you sell in Ontario, unless you fall under specific exemptions.

💡Pro Tip: If your business makes under $30,000 in revenue over four consecutive quarters, you may qualify as a small supplier and aren’t required to register for HST. But registering voluntarily can sometimes be a smart move.


When Do You Need to Register for HST?

The magic number to remember is $30,000. If you cross that threshold in total taxable revenues in a single calendar quarter or over four consecutive quarters, you must register for an HST number.

Here’s how to register:

  • Visit the CRA website and apply online
  • Use a Business Number (BN) or register for one if you don’t already have it
  • Select your effective date and reporting frequency

💡Pro Tip: Even if you’re under the threshold, registering voluntarily can let you claim input tax credits on your business expenses, which means more money back in your pocket.


Charging and Collecting HST

Once registered, you’re officially a tax collector on behalf of the government. That means:

  • You must charge 13% HST on all applicable sales
  • Clearly show the HST amount on your invoices
  • Remit that HST to the CRA during your filing periods

Invoicing Example:

nginx

CopyEdit

Service Fee: $100.00  

HST (13%): $13.00  

Total: $113.00

💡Pro Tip: Use cloud-based invoicing software that auto-calculates HST so you don’t risk undercharging or overcharging clients.


Filing and Remitting HST

Filing your HST return is about more than just sending the CRA a cheque. You’ll also claim any Input Tax Credits (ITCs) for HST you paid on business expenses, which reduces what you owe.

Here’s what you’ll report:

  • Total sales and revenue
  • HST collected on sales
  • HST paid on eligible expenses (ITCs)
  • Net tax payable or refundable

You can file monthly, quarterly, or annually depending on your revenue level.

💡Pro Tip: Set calendar reminders for your filing deadlines and keep digital records of receipts and invoices. The CRA loves documentation.


Common HST Mistakes to Avoid

Even well-meaning business owners can get tripped up. Here are some mistakes to steer clear of:

  • Forgetting to charge HST
  • Not remitting collected HST on time
  • Claiming ineligible input tax credits
  • Mixing personal and business expenses

💡Pro Tip: Regularly reconcile your HST accounts to catch errors early. Or better yet, let the pros handle it.


Don’t Go It Alone

Handling HST doesn’t have to be stressful, but it does require organization and know-how. Whether you need help registering, filing, or keeping your records clean, our team is here to support you.

If you want hands-on help with your taxes or want to streamline your finances, our bookkeeping services can give you peace of mind and more time to grow your business.


Ready to Master Your Business Finances?

Want help with your business finances? Contact Vistance Accounting today to get expert support tailored to your needs.

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