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    Tax / State

    State Income Tax Calculator

    State income tax on wages and ordinary income, using each state’s 2026 brackets and standard deduction. It is the input a federal-only plan is missing: the same income can be taxed at 0 % in Texas and 13.3 % in California.

    StateCAStructure10 bracketsLocal taxExcluded
    State tax
    $7,083
    California, single
    Effective rate
    5.90%
    Of gross income
    Marginal rate
    9.30%
    On the next dollar
    After state tax
    $112,917
    Standard deduction $5,540
    California brackets
    Taxable income after the state standard deduction.
    California brackets
    BracketRateIncome in bracketTax
    $0.00 – $11,0791.00%$11,079$110.79
    $11,079 – $26,2642.00%$15,185$303.70
    $26,264 – $41,4524.00%$15,188$607.52
    $41,452 – $57,5426.00%$16,090$965.40
    $57,542 – $72,7248.00%$15,182$1,215
    $72,724 – $371,4799.30%$41,736$3,881
    $371,479 – $445,77110.30%$0.00$0.00
    $445,771 – $742,95311.30%$0.00$0.00
    $742,953 – $1,000,00012.30%$0.00$0.00
    Over $1,000,00013.30%$0.00$0.00

    Local income taxes and state credits are not included.

    Inspect the model
    Choose a quick result view, a scaled comparison, or the complete diagnostic set.
    State tax against income
    The slope is the marginal rate; the jumps are bracket changes.
    State tax against income0.0004294.758589.501.288e+41.718e+42.147e+4$0.00$0.00$31,250$31,250$62,500$62,500$93,750$93,750$125,000$125,000$156,250$156,250$187,500$187,500$218,750$218,750$250,000$250,000State tax
    Canonical equations
    The exact relationships implemented by this engine.

    state taxable income − state standard deduction · Brackets apply to this amount.

    Σ (income in bracket × bracket rate) · Progressive, not flat on the total.

    state tax / gross income · Always at or below the marginal rate.

    finance methodology

    A clear path from inputs to results.

    State income tax on wages and ordinary income, using each state’s 2026 brackets and standard deduction. It is the input a federal-only plan is missing: the same income can be taxed at 0 % in Texas and 13.3 % in California.

    Step-by-step methodWorked exampleAssumptions explained

    How to use

    1. Set state.
    2. Set filing status.
    3. Set state taxable income before deduction.
    4. Read the headline metrics, then check the table for the detail.

    The formula

    T=∑i(Ii×ri)T = \sum_i (I_i \times r_i)

    Reference: Tax Foundation, 2026 State Individual Income Tax Rates and Brackets, compiled from state statutes.

    Worked example

    At the default inputs

    Inputs
    • State: CA; Filing status: single; State taxable income before deduction: 120000
    Calculation path
    1. 1

      Standard deduction → $114,460 Apply brackets → $7,083

    Result

    State tax: $7,083 · Effective rate: 5.90% · Marginal rate: 9.30%

    Interpreting the result

    $120,000 of income in California produces $7,083 of state tax — 5.90% effective, 9.30% marginal.

    Assumptions & limitations

    • State bracket tax only; local income taxes are excluded.
    • The state standard deduction is applied; state credits and itemised deductions are not.
    • Single and married-filing-jointly are modelled; other statuses differ.

    Frequently asked questions

    Why is my state answer different?

    Local taxes (NYC, Maryland counties, Ohio municipalities) and state credits are excluded.

    Does it include state capital-gains preferences?

    No. The calculator treats all income as ordinary.

    Methodology last reviewed 2026-10-23. Results are informational and not financial or engineering advice — see our disclaimer.