Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Financial
Tax Withholding Calculator
Estimate how much federal income tax should be withheld from each paycheck given your annual gross income, filing status, allowances, additional deductions, and any extra withholding you've requested. Use it to roughly check whether your current paycheck withholding is in the right ballpark or whether you should update your W-4.
Fill in the required fields to see your result.
Ecommerce
Sales Tax Calculator
Calculate the sales tax owed on an ecommerce purchase given the pre-tax order amount and the applicable tax rate. Use it for collecting the right tax from customers at checkout, estimating tax liability for a sale, or verifying that your store's tax calculation matches the destination jurisdiction's rate.
Fill in the required fields to see your result.
Key differences
| Tax Withholding Calculator | Sales Tax Calculator | |
|---|---|---|
| Category | Financial | Ecommerce |
| Inputs required | 5 | 2 |
| Result | Monthly Tax Withholding ($) | Sales Tax Amount ($) |
| What it does | Estimate how much federal income tax should be withheld from each paycheck given your annual gross income, filing status, allowances, additional deductions, and any extra withholding you've requested. Use it to roughly check whether your current paycheck withholding is in the right ballpark or whether you should update your W-4. | Calculate the sales tax owed on an ecommerce purchase given the pre-tax order amount and the applicable tax rate. Use it for collecting the right tax from customers at checkout, estimating tax liability for a sale, or verifying that your store's tax calculation matches the destination jurisdiction's rate. |