Should You Trade In or Sell Privately?
In Ontario, trading in your vehicle at a dealership saves you 13% HST on the trade-in value. This calculator shows you exactly how much that saves and whether selling privately is still worth it.
Enter Your Numbers
All fields in Canadian dollars. The calculator compares trading in at a dealership vs selling privately and buying separately.
The trade-in tax credit, in dollars
Enter a vehicle price and trade-in value to see your HST savings — the credit Ontario buyers leave on the table when they sell privately.
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How Ontario HST Works on Vehicle Trades
When you buy a vehicle in Ontario, 13% HST applies to the purchase. But when you trade in your current vehicle at a licensed dealership, the tax is calculated on the difference between the new vehicle price and your trade-in value.
This is not a rebate or a special program. It is how Ontario sales tax law works on dealer transactions. The dealership applies the credit automatically at the point of sale.
With trade-in: HST = (Vehicle Price - Trade-In Value) x 13%
Your savings: Trade-In Value x 13%
This means a $15,000 trade-in saves you $1,950 in HST, regardless of the new vehicle price. The higher your trade-in value, the more you save. For a complete walkthrough of the trade-in process, read our Ontario trade-in guide.
If you sell your vehicle privately, you keep the full sale price, but you pay HST on the full purchase price of the new vehicle. The private sale needs to exceed the dealer offer by at least 13% of the trade-in value just to break even on the tax difference.
This is one of the most overlooked financial factors in car buying. Dealers know it. Most buyers do not.
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Straight Answers
In Ontario, 13% HST applies to vehicle purchases. When you trade in at a dealership, HST is calculated on the difference between the new vehicle price and your trade-in value. If you sell privately and buy separately, HST applies to the full purchase price of the new vehicle.
Yes. When you trade in at a licensed Ontario dealership, you only pay HST on the net amount (new price minus trade-in value). This saves you 13% of your trade-in value in tax. On a $15,000 trade-in, that is $1,950 in HST savings.
The formula is straightforward: HST saved = trade-in value x 0.13. If you trade in a vehicle worth $20,000, you save $2,600 in HST. The dealership applies this credit automatically at the point of sale. No application or paperwork required on your end.
Yes. The HST trade-in credit applies to both new and used vehicle purchases at licensed Ontario dealerships, if you are financing, leasing, or paying cash.
Selling privately only makes financial sense when the private sale price exceeds the dealer trade-in offer by more than 13% of the trade-in value. For example, if the dealer offers $15,000 for your trade, you save $1,950 in HST. Selling privately would need to net you more than $16,950 to break even. Factor in the time, effort, and risk of private sales before deciding.
Yes. The HST trade-in credit applies whether you are financing or leasing a vehicle at an Ontario dealership. The trade-in value reduces the capitalized cost of the lease, and HST is calculated on the reduced amount.
The trade-in HST credit is specific to Ontario dealership transactions. If you buy from a dealer in another province, that province's tax rules apply. If you buy privately from another province and register in Ontario, you pay Ontario RST (8%) at registration, not the full 13% HST, and the trade-in credit does not apply to private sales.
Want to Know If Your Full Deal Is Fair?
The HST savings are just one piece. A Holdback consultation covers your price, financing, trade-in positioning, and every product the finance office puts in front of you. Considering a private sale? Read our Ontario Private Sale Guide for the full process including RST requirements.
Questions? Email hello@holdback.ca
You only buy a car every four to six years. They sell one every day.
Trade-in or sell privately? Get the full math.
A Deal Review covers the HST credit alongside the actual auction value of your vehicle.