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State income tax calculator 2026

2026 state income tax for all 50 states and DC with brackets, standard deductions and exemptions.

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How to use this tool

  1. Enter your values or choose a local file. Replace the example data with your own.
  2. Review options, units and assumptions, then run the tool.
  3. Check the result before copying or downloading it. Keep an original copy of important files.

Method & assumptions

2026 state income tax for all 50 states and DC with brackets, standard deductions and exemptions.

state tax = brackets(income − standard deduction − exemptions) − credits

Worked example

State: New York
Adjusted gross income: 80,000
Filing status: Single

→ State taxable income (est.): USD 72,000.00
→ State income tax: USD 3,723.00
→ Top bracket reached: 5.4 %
→ Average tax rate: 4.65 %

Limits & important notes

Basic release. Review the result before relying on it. File limits, supported cases and processing requirements are shown above.

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