Compare calculators
Both calculators run independently β change the inputs on either side to compare results.
Taxes
Roth IRA Tax Calculator
Find out how much you can contribute to a Roth IRA and what current tax you'll forgo based on your income and filing status. Useful for high earners approaching phase-out limits.
Fill in the required fields to see your result.
Taxes
Payroll Tax Calculator
Calculates the combined US federal payroll tax (Social Security plus Medicare, jointly known as FICA) owed on a given block of wages, using the specified employee-side rates. Useful for paycheck planning, comparing self-employment to W-2 take-home, and verifying that an employer has withheld the correct FICA amount.
Fill in the required fields to see your result.
Key differences
| Roth IRA Tax Calculator | Payroll Tax Calculator | |
|---|---|---|
| Category | Taxes | Taxes |
| Inputs required | 5 | 3 |
| Result | Tax on Roth Contribution ($) | Total Payroll Tax ($) |
| What it does | Find out how much you can contribute to a Roth IRA and what current tax you'll forgo based on your income and filing status. Useful for high earners approaching phase-out limits. | Calculates the combined US federal payroll tax (Social Security plus Medicare, jointly known as FICA) owed on a given block of wages, using the specified employee-side rates. Useful for paycheck planning, comparing self-employment to W-2 take-home, and verifying that an employer has withheld the correct FICA amount. |