Use this New Brunswick HST calculator to calculate the current 15% Harmonized Sales Tax or perform a reverse HST calculation.
Enter an amount in any one of these fields:
- Price before HST—to calculate the HST and total price.
- HST amount—to calculate the prices before and after HST.
- Price including HST—to calculate the included HST and price before tax.
The remaining fields update automatically.
What is the current (2026) HST rate in New Brunswick?
The current HST rate in New Brunswick is 15%. It consists of the 5% federal portion and the 10% provincial portion. The rate increased from 13% to 15% on July 1, 2016.
New Brunswick HST calculation example
For a price of $100 before tax:
- Federal portion: $100 × 5% = $5
- Provincial portion: $100 × 10% = $10
- Total HST: $15
- Price including HST: $115
For a reverse calculation, divide the tax-inclusive price by 1.15. For example, $115 ÷ 1.15 = $100 before HST.
Data source: Canada Revenue Agency
History of HST in New Brunswick
New Brunswick introduced the Harmonized Sales Tax on April 1, 1997, replacing the previous combination of federal GST and provincial sales tax with a single harmonized tax.
Need to calculate HST for another province? Use the Canada HST calculator or select another provincial calculator from the menu.