Northwest Territories GST rates in 2026
| GST | 5% |
|---|
- GST only.
How to calculate GST in Northwest Territories
To add tax, multiply the price before tax by 5% and add it on. To find the price before tax inside a total, divide the total by 1.05. Taking 5% off the total gives the wrong answer, because the tax was charged on the smaller pre-tax price.
Tax = Price × 5 ÷ 100 Price before tax = Total ÷ 1.05
| Price before tax | $250.00 |
|---|---|
| GST at 5% | $12.50 |
| Total | $262.50 |
| A total of $525.00 includes tax of | $25.00 |
| …so the price before tax was | $500.00 |
Northwest Territories GST on common amounts
At 5%, this is the tax and the total on everyday prices.
| Price before tax | Tax | Total |
|---|---|---|
| $10.00 | $0.50 | $10.50 |
| $20.00 | $1.00 | $21.00 |
| $50.00 | $2.50 | $52.50 |
| $100.00 | $5.00 | $105.00 |
| $250.00 | $12.50 | $262.50 |
| $500.00 | $25.00 | $525.00 |
| $1,000.00 | $50.00 | $1,050.00 |
| $5,000.00 | $250.00 | $5,250.00 |
How sales tax works in Northwest Territories
Northwest Territories has no provincial sales tax, so only the 5% federal Goods and Services Tax (GST) applies to most sales.
Most businesses must register for GST/HST once their taxable sales pass $30,000 over four consecutive calendar quarters. The rate you charge depends on where the supply is made, so a sale delivered to another province uses that province's rate.
What your invoice must show
Business customers need the right details on your invoice to claim back the tax they paid. For sales of $30 or more, show your GST/HST registration number and the total tax charged (or state that the price includes it). For sales of $150 or more, also show the buyer's name, the terms of payment and a description of each item. Our invoice generator has fields for all of these.