Canadian · Sales Tax
Reverse HST calculator, New Brunswick.
Got a total with tax already in it? Enter it and get the price before tax and the HST that was added.
In New Brunswick the combined rate is 15% HST. To remove it, divide the total by 1.15. Example: $172.50 ÷ 1.15 = $150.00 before tax, so $22.50 of the total is tax.
Inputs
Result
Enter a total to see the price before tax.
How the reverse calculation works
New Brunswick charges a single 15% HST, so the divisor is 1.15 and there is one tax line to back out.
Pre-tax price = total ÷ 1.15. Tax = total − pre-tax price. Worked examples at the New Brunswick rate:
- $172.50 total = $150.00 before tax and $22.50 HST.
- $64.40 total = $56.00 before tax and $8.40 HST.
New Brunswick totals, tax removed
| Total paid | Before tax | HST |
|---|---|---|
| $15.00 | $13.04 | $1.96 |
| $30.00 | $26.09 | $3.91 |
| $60.00 | $52.17 | $7.83 |
| $120.00 | $104.35 | $15.65 |
| $300.00 | $260.87 | $39.13 |
| $600.00 | $521.74 | $78.26 |
| $1,500.00 | $1,304.35 | $195.65 |
Sources, read October 2026: CRA, GST/HST rates by province (calculator page) (page details 2026-04-08). Rates change; the CRA page above is the one to check.
Frequently asked questions
How do I remove HST from a New Brunswick total?
Divide the total by 1.15. That is 1 plus the combined rate of 15%. The result is the price before tax; subtract it from the total to get the tax. $172.50 ÷ 1.15 = $150.00, so the tax is $22.50.
Why can't I just take 15% off the total?
Because the rate applies to the pre-tax price, not to the total. Taking 15% of $172.50 gives $25.88, but the real tax is $22.50. Dividing by 1.15 is the correct reverse.
Is the New Brunswick rate the same as the rest of Atlantic Canada?
Not exactly. The CRA table lists 15% HST for New Brunswick, Newfoundland and Labrador and Prince Edward Island, but Nova Scotia is 14% (since 1 April 2025). Dividing a Nova Scotia total by 1.15 would give the wrong pre-tax price.
Will the answer match my receipt to the cent?
Usually, but not always. A seller rounds the tax on its own invoice, sometimes line by line, and more than one pre-tax price can produce the same total once rounded. This tool rounds the pre-tax price to the nearest cent and makes the tax lines add back to your total. If the receipt prints the tax, trust the receipt.
Estimate only
This is arithmetic on the rate you choose. It does not know whether the items you bought were taxable, zero-rated, exempt or taxed at a different rate, and it does not look anything up from the CRA or any provincial register. Where a receipt prints its own tax lines, use those. Verify current rates with the CRA before invoicing.