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Marginal and Effective Tax Rate Calculator

Marginal and Effective Tax Rate Calculator. A taxpayer enters taxable income, tax paid, and a marginal-rate assumption to estimate effective rate and the tax on an additional dollar. Use it when evaluating a raise, deduction, conversion, or other income change.

Inputs

Federal Individual Income & Filing inputs

Range: 0–100,000,000 $

Enter a non-negative US-dollar amount for the stated tax year; use the same tax year and jurisdiction for all related inputs. Professional example: 90000. Edit this value for your own facts.

Range: 0–100,000,000 $

Enter a non-negative US-dollar amount for the stated tax year; use the same tax year and jurisdiction for all related inputs. Professional example: 16000. Edit this value for your own facts.

Range: 0–100 %

Enter a percentage as a whole number, such as 22 for 22%, not 0.22. Professional example: 24. Edit this value for your own facts.

Result

Effective tax rate
17.78
Tax On Next Dollar
0.24
Estimate
Marginal tax rate
24.00
How to interpret this result
Marginal and Effective Tax Rate Calculator starts with a professional planning example for this scenario. Edit the inputs to replace the example with your own facts; the displayed outputs update from the formula.
Applicability and limits
This is a rate arithmetic estimate. It does not load a tax-year bracket table or model filing status, phaseouts, NIIT, payroll tax, or state tax.
Calculation basis
Only the named inputs and displayed formula relationships are used. Rates, limits, thresholds, eligibility flags, dates, and jurisdiction assumptions are not silently looked up unless a verified dataset is listed.

Formula

Calculation logic

Formula definitions and substituted values.

What to check

  • A taxpayer enters taxable income, tax paid, and a marginal-rate assumption to estimate effective rate and the tax on an additional dollar.
  • Use it when evaluating a raise, deduction, conversion, or other income change.
  • This is a rate arithmetic estimate. It does not load a tax-year bracket table or model filing status, phaseouts, NIIT, payroll tax, or state tax.

Related calculators

This is a rate arithmetic estimate. It does not load a tax-year bracket table or model filing status, phaseouts, NIIT, payroll tax, or state tax.