Two people can earn the identical salary, contribute the same to retirement, and still take home noticeably different amounts — simply because they live in different states. Federal income tax and FICA are the same everywhere, but state income tax ranges from nothing at all to north of 13% at the top. If you're comparing job offers in different states or thinking about relocating, this is one of the biggest variables in your real pay.
The three kinds of state tax systems
- No income tax. Nine states levy no broad personal income tax: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. In these states, your take-home pay is determined entirely by federal tax and FICA.
- Flat tax. A growing number of states apply a single rate to all taxable income — for example, a flat percentage regardless of how much you earn. Simple to predict, and often moderate.
- Progressive tax. Most states use brackets like the federal system, where higher income is taxed at higher marginal rates. California, New York, and Hawaii sit at the high end.
How much difference does it make?
Consider a $120,000 salary. In a no-income-tax state, you pay $0 in state tax on that income. In a high-tax progressive state, the state alone might take several thousand dollars a year. Over a career, that gap compounds into a very large number — though it's only half the story.
Don't forget the other side of the ledger
A state with no income tax still needs revenue, and it usually makes up the difference elsewhere: higher sales tax, higher property tax, or various fees. Texas and New Hampshire, for instance, are known for relatively high property taxes. So "no income tax" does not automatically mean "cheaper place to live." The honest comparison weighs your full cost of living — housing, sales tax, property tax — against the income tax you'd save.
A note on accuracy
State tax is genuinely complicated. Beyond the headline rate, states differ in their standard deductions, personal exemptions, credits, and local or city taxes layered on top. Any quick estimate — including ours — uses simplified rate structures to stay fast and broadly useful. For an exact figure, your state's revenue authority or a tax professional is the authority.
Compare states on your own salary
The clearest way to see the effect is to run your salary through different states. Our paycheck calculator lets you pick any state and instantly see how federal tax, FICA, and state tax combine into your take-home pay. Switch the state and watch the net change.
If a bracket comparison surprises you, our guide on understanding tax brackets explains why your marginal rate and your effective rate are not the same thing — which matters as much for state tax as it does federally.
Reciprocity, remote work, and where you actually owe
Living in one state and working in another complicates the picture. Some neighboring states have reciprocity agreements, so you only pay income tax to your home state even though you commute across the border. Without such an agreement, you can owe tax to the state where you work and then claim a credit on your home-state return to avoid true double taxation — but it means filing in two states. Remote work adds its own wrinkles: which state has the right to tax your income can depend on where you physically perform the work and each state's specific rules, and a handful of states are notably aggressive about taxing remote employees tied to an in-state office. If you've moved or gone remote across state lines, this is one of the most common sources of filing surprises, and it's worth confirming how each state involved treats your situation before the tax year ends rather than after.
The headline rate isn't the whole tax
A state's top marginal rate makes for a dramatic comparison, but it rarely reflects what you'll actually pay. States differ in their standard deductions, personal exemptions, and credits, all of which shrink the income the rate applies to. Two states with the same top rate can produce noticeably different bills once those adjustments are in. On top of that, some cities and counties levy their own local income taxes stacked on the state rate — so two people in the same state can take home different amounts depending on which city they live in. Any quick estimate, including ours, simplifies these details to stay fast; the exact figure comes from your state revenue authority.
A fuller cost-of-living comparison
"No income tax" is the headline that drives a lot of relocation decisions, but it's only one line of the budget. A state without income tax still funds itself, usually through higher sales tax, higher property tax, or various fees. Suppose you compare a no-income-tax state against a moderate-income-tax one. The income tax savings might be real, but if the no-tax state has markedly higher property taxes and you buy a home there, a chunk of the savings can evaporate. The honest comparison weighs the full picture — income tax, sales tax, property tax, insurance, and housing costs — not the income tax line alone. For high earners the income tax difference can still dominate; for others, housing and property taxes matter more.
What this means for a job offer or a move
When you're comparing offers in different states, convert each to a true take-home figure before you compare salaries head to head. A higher gross salary in a high-tax, high-cost state can leave you with less spendable income than a lower salary in a no-tax, lower-cost one — or it can still come out ahead. The only way to know is to run both through after-tax, after-housing math rather than reacting to the gross numbers. And remember that take-home pay is just one factor; career opportunity, family, and quality of life often outweigh a few percentage points of tax. The tax math should inform the decision, not make it alone.
Beyond income tax: the other state-level differences
State income tax gets the attention, but a few other state differences quietly shape your finances. Capital gains are treated as ordinary income by most states that have an income tax, so a state with no income tax also means no state tax on investment gains — which can matter a great deal in a year you sell stock or property. Retirement income is taxed unevenly: some states exempt Social Security, pensions, or retirement-account withdrawals, which can make a state that looks expensive for a worker quite friendly for a retiree. Estate and inheritance taxes exist in some states and not others, a factor in longer-term planning. Even tax on interest and dividends can differ where a state taxes investment income but not wages. The takeaway isn't to memorize each state's rules — they change — but to recognize that "which state is cheapest" can have a different answer depending on whether you're early in your career, selling assets, or planning for retirement. A state that's punishing for a high earner can be gentle for a retiree drawing a pension, and a state that looks cheap on wages can tax investment income heavily. For a decision with real money attached, your state revenue authority or a tax professional has the current specifics, and confirming them is well worth the effort before you sign a lease, accept an offer, or commit to a move.
General information, not tax advice. State rules and rates change; verify with your state revenue authority.