Sales Tax on $100 at 8%
An 8% sales tax on a $100 purchase adds $8.00, making the total $108.00.
How to use this tool
- Enter amount and tax rate in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your sales tax and the full breakdown beneath it.
Calculate that an 8% sales tax on a $100 item comes to $8.00 in tax.