Marginal Tax Rate

Determine a taxpayer's federal marginal tax rate for a specified tax year using the tax rate schedule and the effect of phase-outs. This calculator does not consider other taxes, such as the effect of alternative minimum tax or capital gains tax.

Example

If your clients have an AGI of $115,000, are married and filing jointly, and have two children, what is their marginal tax rate?

Field	Input
Filing status	Married Filing Joint
Adjusted gross income	$115,000
Exemptions	4
Qualifying dependents for child credit	2

In this example, their marginal tax rate is 30%. This percentage does not match the tax rate schedules of 25% because the child tax credit is being phased out. This makes the effective tax rate higher than the rate shown on the tax rate schedule.

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