United States · Tax
State Income Tax Calculator
Estimate annual state and local income tax from taxable income and user-entered effective state and local rates.
Interactive calculator
Estimate state income tax from an effective rate
Use annual taxable income plus the state and local effective rates you want to model to estimate annual and monthly state-level income-tax drag.
Results
Combined rate
5%
Annual tax
$4,750
Monthly tax
$396
How to use it
- 01Enter annual taxable income plus the state and local income-tax rates you want to model.
- 02Review the combined rate, annual tax, and monthly tax estimate.
- 03Use the result as a scenario tool for planning, relocation comparison, or paycheck expectations.
Result guide
- This page does not internally model all state brackets, deductions, or credits.
- A user-entered effective rate is often the safest launch approach when a fully maintained state database is not in scope.
- The output is best treated as a planning estimate rather than a filing result.
About this calculator
State-tax pages are useful because users often already know their approximate effective rate or want to compare scenarios across locations. A clean production version should be explicit when it is rate-driven rather than pretending to maintain all 50 state tables.
This page therefore uses entered state and local rates to produce a fast annual and monthly estimate without claiming jurisdiction-specific completeness.
Frequently asked questions
Does this know my exact state's bracket rules?
No. This version uses the state and local rates you enter, which keeps the result transparent but intentionally simplified.
Why show a monthly number too?
Because many users are trying to understand paycheck impact or compare locations in monthly budget terms.
Which US states do not levy a state income tax?
Currently, nine states have no traditional personal state income tax on earned wages: Alaska, Florida, Nevada, New Hampshire (which phased out its dividend/interest tax), South Dakota, Tennessee, Texas, Washington, and Wyoming. If you reside in one of these states, you can set the state rate to 0%.
Method and limitations
This calculator uses the formula and assumptions described on this page. We do not claim independent professional review. Direct references will be listed here when they support a specific rule or data source used by this calculator.
Results are estimates for general information. Verify current rules and assumptions before making financial, tax, or health decisions.
Read our Editorial and Verification Policy →Related calculators
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