Which states have no income tax?

Nine states have no income tax on wages: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. Note that New Hampshire and Tennessee only exempt wages — they may tax investment income.

How does living in one state and working in another affect taxes?

You'll typically pay income tax to the state where you work (via withholding) and file a non-resident return there, then file a full-year return in your home state and claim a credit for taxes paid to the work state. Most states have agreements to prevent true double taxation, but you'll pay the higher of the two effective rates.

What is a flat income tax rate?

A flat (or proportional) income tax applies the same rate to all taxable income regardless of how much you earn. For example, Illinois taxes all income at 4.95%. This differs from graduated systems where higher income is taxed at progressively higher rates.

Do cities have their own income taxes?

Yes, many cities in certain states levy local income taxes on top of state tax. New York City, Philadelphia, Cleveland, Columbus, Detroit, and others all have local taxes that can add 1–4% to your effective rate. These are usually withheld from your paycheck automatically.

State Income Tax Explained: All 50 States at a Glance

No-Income-Tax States

Nine states impose no income tax on wages: Alaska, Florida, Nevada, New Hampshire (wages only — investment income is taxed separately), South Dakota, Tennessee (wages only), Texas, Washington, and Wyoming. If you live and work in one of these states, your take-home pay only faces federal income tax and FICA. This makes them very attractive for high earners — a $200,000 salary in Texas vs. California can mean $15,000–$20,000 more per year in take-home pay.

Flat-Rate States vs. Graduated Bracket States

Flat-rate states apply one uniform rate to all taxable income regardless of how much you earn: Colorado (4.4%), Illinois (4.95%), Indiana (3.15%), Kentucky (4.5%), Michigan (4.05%), Massachusetts (5%), North Carolina (4.75%), Pennsylvania (3.07%), and Utah (4.85%). These are simple to calculate and predictable.

Graduated bracket states work like the federal system — higher income faces progressively higher rates. California is the most extreme example, with 9 brackets ranging from 1% to 13.3%. New York goes up to 10.9%. Hawaii, Oregon, and Minnesota also have high top rates. Most Americans live in graduated states.

State Standard Deductions and Exemptions

Most states with income taxes also have their own standard deductions and personal exemptions, though they differ significantly from federal amounts. California's standard deduction is only $5,202 (single), compared to $15,000 federally. Some states conform to federal adjusted gross income; others start their calculation differently. This means your state taxable income may be higher or lower than your federal taxable income even with the same gross earnings.

Remote workers: If your employer is in a high-tax state but you've relocated to a no-tax state, you may still owe that state's taxes depending on their "convenience of the employer" rules. New York is the most aggressive enforcer of this rule — if your NY-based employer doesn't require you to work remotely, NY may assert that your income is NY-sourced regardless of where you physically work.

It's Where You Live, Not Where You Work

Your state income tax is generally based on your state of residence. If you live in New Jersey but work in New York, your employer withholds NY state tax at the source. You then file both a non-resident NY return and a full-year NJ return, claiming a credit on your NJ return for taxes paid to NY. You avoid true double taxation but end up paying the higher of the two states' effective rates.

Local Income Taxes

Several cities layer additional taxes on top of state tax. Notable examples: New York City (up to 3.876%), Yonkers (16.75% of NY state tax), Philadelphia (3.75% residents, 3.44% non-residents), Cleveland (2%), Columbus (2.5%), and Detroit (2.4%). These are often withheld automatically by your employer, but can be easy to overlook when you move between cities or work remotely for a city-based employer.

Reciprocity Agreements

Some neighboring states have reciprocity agreements that simplify taxation for cross-border workers. Under a reciprocity agreement, you only pay income tax to your state of residence even if you work in the other state. Examples: Pennsylvania and New Jersey have reciprocity, as do Virginia and several neighboring states. Check whether your two states have an agreement before filing two state returns unnecessarily.

This guide is for informational purposes only and does not constitute tax, legal, or financial advice. Tax laws change frequently. Consult a qualified tax professional for advice specific to your situation.