State Income Tax (2026)

State tax is the other half of relocation math

Federal brackets get the headlines, but state income tax can add zero—or more than ten percentage points—to your effective rate. This calculator estimates state liability for supported jurisdictions using the bracket schedules, standard deductions, exemptions, and credits encoded in our 2026 datasets. It is built to pair with the federal income tax calculator and paycheck calculator when you compare offers or plan withholding.

No single formula covers fifty states. Some use flat rates. Others mirror federal progressivity with different band breakpoints. A handful tax capital gains differently from wages. The tool applies the rules we have coded for your selected state and surfaces assumptions in the result trace.

Federal vs state starting points

Federal tax starts from AGI and the 2026 standard deduction ($16,100 single, $32,200 joint). States may define taxable income differently—some start from federal AGI, others from federal taxable income, and some use their own definitions with add-backs for municipal bond interest or 401(k) contributions. Enter the income basis the selected state engine expects (usually state-taxable wages or AGI per tool labels).

Itemizers remember the federal SALT deduction cap when comparing total tax burden. State tax paid can be deductible federally up to the cap—model that interaction in the SALT deduction calculator when itemizing beats the standard amount.

Zero-tax states and wage vs investment income

Relocating to Texas or Florida eliminates state wage income tax in our models, but property taxes, sales taxes, and insurance costs may rise. New Hampshire historically taxed investment income while exempting wages—check current statute. Tennessee phased out its hall tax on interest and dividends. “No income tax” is not “no tax.”

Flat-rate vs progressive states

Flat-rate states apply one marginal rate to taxable income above a small exemption (Illinois, Pennsylvania, etc., with variations). Progressive states stack bands much like federal 2026 brackets. High earners in California, New York, or New Jersey can face double-digit marginal state rates on top of federal 32% or 35% bands—use the job offer comparison when negotiating remote work across borders.

Credits and local add-ons

Some states offer earned income credits, property tax circuit breakers, or child credits that differ from federal CTC. Local occupational taxes in cities like Detroit or local wage taxes in Pennsylvania may not be included unless noted. Read the assumption panel after you calculate.

Worked comparison

Same household: $120,000 AGI, married filing jointly, two dependents, taking standard approaches at federal and state level where applicable:

• Federal ordinary tax after $32,200 standard deduction—run federal calculator
• State A (no income tax): $0 state income tax in this tool
• State B (progressive): liability depends on state bands—toggle states in the form to compare

Difference of a few thousand dollars per year changes optimal 401(k) deferral and housing budget even when gross salary is identical.

Multi-state and remote work

COVID-era remote work created nexus questions: which state taxes a day worked from a home office in another state? Some states offer reciprocity agreements; others require nonresident returns. This single-state estimator does not allocate wages across states—you need apportionment worksheets or a CPA for true multi-state filing.

Paycheck and refund integration

State withholding on W-2s uses state-specific tables. Annual state liability minus state withholding drives state refund or balance due, separate from federal. The tax refund estimator focuses on federal; rerun state here for the state piece.

Planning scenarios

• Job offer in a new state—pair with job offer comparison
• Retiree moving before RMDs—consider state taxation of Social Security and pensions
• Stock option exercise—some states tax at exercise; see RSU tax calculator for federal wage character
• Self-employment—state tax on Schedule C profit plus SE tax federally

Common mistakes

• Assuming state taxable income equals federal taxable income
• Ignoring local wage taxes in metro areas
• Forgetting part-year resident returns after a mid-year move
• Comparing gross salary across states without benefits and cost of living

Part-year resident and nonresident returns

Moving mid-year often requires a part-year resident return in the new state and possibly a nonresident return in the old state for wages earned before the move. Credit for taxes paid to other states on Schedule S (names vary) prevents double taxation on the same dollar when rules align. This single-state tool cannot split wages by date—you must prorate manually or use professional software.

Military and spouse residency relief

Servicemembers Civil Relief Act and Military Spouse Residency Relief Act can keep tax home in one state despite PCS moves. Combat pay exclusions at federal level may still affect state taxable income depending on state conformity.

Retirement income taxation by state

Some states exempt Social Security, pension income, or 401(k) withdrawals partially or fully. Retirees comparing Florida to Georgia or Pennsylvania to New Jersey should model retirement income separately from wage inputs—state engines differ in senior exclusions.

Remote work and convenience of the employer

Working remotely for an employer in another state can create dual filing obligations. Some states use convenience rules to tax remote wages even when you never set foot in the office state. Others offer temporary COVID-era relief that expired. This calculator does not allocate wages by workday—enter the income the state engine expects for residency modeling only.

Digital nomads with self-employment income should combine this tool with the self-employment tax calculator for federal SE tax and consult multi-state guides when spending months outside their home state.

Remote workers comparing offers should run identical gross salaries through two state selections—differences of $3,000–$8,000 annual state tax are common between coasts and no-tax states at middle incomes.

Property and sales tax as a relocation input

State income tax is one line in total cost of living. High property tax states (New Jersey, Illinois, Texas local districts) can exceed income tax savings from zero-rate states when you buy a large home. Model housing and commute costs alongside this calculator when comparing the job offer comparison outputs.

Sales tax matters for spending, not usually for W-2 income tax returns, but local wage taxes in Ohio and Pennsylvania cities do hit paychecks—confirm whether your selected state engine includes those metros.

State conformity to federal tax changes

States decouple from federal law in inconsistent ways. Some adopt federal AGI as a starting point then add back 401(k) contributions for state tax if they never conformed to federal deferral rules. Others conform automatically to federal bracket indexing. Read your state’s conformity date when comparing 2025 vs 2026 moves in the tax year comparison tool.

State earned income credits stack on top of federal EITC in some states—this calculator may not include state EIC unless noted in the result panel for your selection.

College students and military spouses have special residency rules that change which state taxes wage income—this tool assumes stable residency for the full year unless you run separate part-year scenarios manually.

States with optional local school district income taxes (Ohio, Pennsylvania) may require an additional local calculator or manual add-on beyond the state result shown here.

Tax treaties and foreign earned income exclusions affect federal AGI first—states that start from federal taxable income may still tax excluded wages if they do not conform to FEIE.

State standard deductions vs federal

Some states use their own standard deduction amounts—California, for example, does not mirror federal $32,200 joint. Others conform partially. Enter the income basis the selected state engine documents; do not assume state taxable income equals federal taxable income after the 2026 federal standard deduction ($16,100 single, $24,150 HoH, $32,200 joint).

States with flat tax rates still offer exemptions or credits that function like deductions. Read the result trace for your selection.

Remote work nexus in practice

If you live in State A and work remotely for an employer in State B, both states may claim wage income unless reciprocity or a clear day-count rule applies. This single-state calculator models one residency; split-year filers need apportionment worksheets. The job offer comparison helps when choosing between on-site and remote offers in different states.

Building a relocation spreadsheet

Export state tax from this tool, federal from the federal income tax calculator, and FICA from the FICA calculator. Add property tax, sales tax on spending, and commute cost. A 0% state income tax label does not mean zero tax burden.

Part-year resident overview

Moving mid-year may require part-year resident returns in two states. Income earned before the move usually sources to the old state; after the move to the new state. Credits for tax paid to other states reduce double taxation when rules align. This tool does not split wages by month—manual proration required.

State capital gains conformity

Some states tax capital gains as ordinary income; others offer exclusions for in-state assets or age-based breaks. Federal preferential rates from the capital gains tax calculator do not automatically flow to state returns.

Military and pension exclusions

Active-duty pay exclusions and military pension tax treatment vary widely by state. Retirees comparing Sun Belt moves should model pension and Social Security taxation separately from wage inputs in this engine.

Sources and methodology

State datasets are maintained per revenue department publications for 2026 where available. Federal cross-references use Rev. Proc. 2025-32 standard deductions when relevant. Results are educational—not filing software for any state.