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Combined rates vary by city and county; check your state revenue department.
Adding and removing sales tax
Add tax: total = price × (1 + rate). $100 at 8.25% = $108.25. Remove tax from a total: price = total ÷ (1 + rate). $108.25 ÷ 1.0825 = $100.00. Subtracting 8.25% of the total instead ($108.25 − $8.93 = $99.32) is a common mistake.
Price × rate quick table
| Price | 5% | 6% | 7% | 8.25% | 9.5% |
|---|---|---|---|---|---|
| $10.00 | $10.50 | $10.60 | $10.70 | $10.82 | $10.95 |
| $25.00 | $26.25 | $26.50 | $26.75 | $27.06 | $27.38 |
| $50.00 | $52.50 | $53.00 | $53.50 | $54.12 | $54.75 |
| $100.00 | $105.00 | $106.00 | $107.00 | $108.25 | $109.50 |
| $250.00 | $262.50 | $265.00 | $267.50 | $270.62 | $273.75 |
| $500.00 | $525.00 | $530.00 | $535.00 | $541.25 | $547.50 |
| $1,000.00 | $1,050.00 | $1,060.00 | $1,070.00 | $1,082.50 | $1,095.00 |
Why your rate is a combination
In most US states the rate at the register is the state rate plus county, city and special-district rates, so two stores a few miles apart can charge different totals. Alaska, Delaware, Montana, New Hampshire and Oregon have no statewide sales tax, though some Alaska localities levy their own. Many states exempt or reduce tax on groceries or prescription drugs; rules differ, so check your state revenue department for the exact rate at an address.
Budgeting a big purchase
On a $1,200 laptop, the difference between a 6% and a 9.5% combined rate is $42. For cars, sales tax is often charged on the price after trade-in credit in many states, which can lower the tax noticeably; confirm with your state.
Adding and removing tax
Total = price × (1 + rate). $80 at 8.25% is $86.60. To find the pre-tax price from a total, divide: $86.60 ÷ 1.0825 = $80.00.
Which rate to use
Most US purchases pay a state rate plus county and city rates. Alaska, Delaware, Montana, New Hampshire and Oregon have no statewide sales tax, though some Alaska towns charge a local one. Your receipt or your state revenue department shows the combined rate for your address.
Frequently asked questions
How do I remove sales tax from a total?
Divide by 1 + rate: $108.25 ÷ 1.0825 = $100.
Is sales tax charged on shipping?
It depends on the state and whether shipping is separately stated. Check your state rules.
How do I find the tax rate from a receipt?
Divide the tax by the pre-tax price and multiply by 100: $8.25 ÷ $100 = 8.25%.
Do you pay sales tax on online orders?
Usually yes; since the 2018 Wayfair decision, most states require larger online sellers to collect it.
Is tax charged on tips?
A voluntary tip is generally not subject to sales tax; mandatory service charges often are.