abacus Sales Tax Calculator
Calculate sales tax on any purchase instantly. Know the total price before you reach the register for smarter shopping decisions.
Enter values and click Calculate.
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Frequently Asked Questions - Sales Tax Calculator
Which states have no sales tax?
Five US states have no state-level sales tax: Alaska, Delaware, Montana, New Hampshire, and Oregon. However, some local jurisdictions in Alaska and Montana may levy local sales taxes. These states fund government through other tax sources.
What is the difference between state and local sales tax?
State sales tax is set by the state government. Local sales tax is added by counties, cities, and special districts. The combined rate is what you actually pay. Some areas can have combined rates exceeding 10%.
Are services subject to sales tax?
It depends on the state. Most states tax tangible goods, but taxation of services varies widely. Some states tax specific services like repairs, landscaping, or consulting, while others exempt all services. Always check your local rules.
Do online purchases require sales tax?
Since the 2018 South Dakota v. Wayfair Supreme Court decision, states can require online retailers to collect sales tax even without a physical presence. Most online marketplaces now collect sales tax automatically on behalf of sellers.
How do I calculate pre-tax price when I only know the total?
Divide the total by (1 + tax rate as decimal). For example, if you paid $108.50 total and the tax rate is 8.5%, the pre-tax amount is $108.50 / 1.085 = $100. Reverse the formula: pre-tax = total / (1 + tax rate / 100).
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