State taxes · 2026

2026 State Income Tax Calculator

Select a state rate schedule and enter projected state taxable income — the amount after that state’s additions, subtractions, deductions, and exemptions. The selection does not determine where you live or must file. This planning tool covers the 50 states and Washington, D.C. only, not US territories or tax systems outside the United States.

State rate schedule

Texas is the initial example; replace it with the schedule you want to explore. The selection does not determine residency, part-year or nonresident filing, or multistate sourcing.

State filing schedule

Use the schedule shown on your state return. Head-of-household and separate-return schedules require the state form and are not approximated here.

Projected state taxable income

Use the taxable-income line produced by your state worksheet, after state-specific modifications and deductions — not gross freelance revenue.

Estimated state income tax before credits$0.00

Equal quarterly planning reserve: $0.00
Effective rate on entered taxable income: 0.0%
Marginal state rate at this income: 0.0%
Published standard deduction (context only): $0.00
State tax structure: No individual income tax on earned income
Local-tax condition: No general local income-tax layer identified in this model
Important state condition: No state individual income tax applies to wage or ordinary self-employment income.
Rule data status: Tax year 2026 · reviewed 2026-07-25
Official agency for the selected state: Texas Comptroller of Public Accounts
Evidence status: Agency directory verified; 2026 schedule not yet primary-confirmed
Source scope: Planning schedule for tax year 2026 · confirm the linked agency's current forms and instructions before filing

State planning estimate only. This applies a published 2026rate schedule to the state taxable income you enter. It does not prepare a state return or determine credits, residency, part-year or nonresident filing, multistate sourcing, entity-level tax, or city and county tax. It covers the 50 states and Washington, D.C. only—not US territories or tax systems outside the United States. Rules last reviewed 2026-07-25.

Sources

Transparent method

How this calculator works

Use the 2026 single or married-joint rate schedule published for the selected state or Washington, D.C.
Apply each marginal rate only to the portion of entered state taxable income inside that bracket.
Show the published standard deduction as context, but do not subtract it again because the input is already state taxable income.
Divide the pre-credit annual estimate by four only as a cash-reserve planning amount, not as a state safe-harbor calculation.

What the result does not include

The input must come from the selected state’s taxable-income worksheet; gross revenue, Schedule C profit, federal AGI, and federal taxable income are not interchangeable.
Credits, benefit recapture, alternative taxes, part-year or nonresident sourcing, capital-gains preferences, and state-specific entity taxes are excluded.
City, county, occupational, and payroll taxes are not calculated. The result warns when a local income-tax layer commonly applies.
Only the single and married-joint schedules are calculated; other filing schedules must use the current state form.
The library covers the 50 states and Washington, D.C. only; US territories, treaty positions, foreign tax systems, and international tax rules are outside scope.

Common questions

Why does the calculator ask for state taxable income?

States do not all begin with the same federal line, and each has its own additions, subtractions, deductions, exemptions, and conformity rules. Asking for the state taxable-income line prevents the tool from silently applying a deduction twice or assuming that federal AGI equals the state tax base.

Does this include city or county income tax?

No. The result identifies states where a local layer commonly exists, but a ZIP code or city would be needed to calculate it. Maryland counties, New York City, many Pennsylvania municipalities, and numerous Ohio cities are examples where the local amount can be material.

Does the quarterly reserve equal the required state payment?

Not necessarily. It is one fourth of the pre-credit annual estimate. State safe-harbor percentages, withholding, prior-year tax, unequal installment schedules, and payment thresholds vary. Use the selected state’s estimated-tax form to determine the required payment.

Can the result be used to file a state return?

No. It applies the published rate schedule to taxable income for planning. Credits, recapture rules, residency and sourcing, special deductions, alternative taxes, and local taxes can change the filed amount.

What if I live outside the 50 states and Washington, D.C.?

Do not use this calculator for a US territory or a tax system outside the United States. It also cannot determine a nonresident, part-year, multistate, treaty, or dual-status filing position. Use the current instructions for each applicable jurisdiction and qualified professional guidance when needed.