If you earned money in a state where you don’t live, you probably owe that state a nonresident state tax filing, and the rules for when and how to file depend on how much you earned there, what kind of income it was, and whether your home state has an agreement with the work state. As of 2026, 41 states and the District of Columbia tax individual income, and most require nonresidents to file once earnings in the state cross a threshold that can be as low as $100.1Tax Foundation. Nonresident Income Tax Filing and Withholding Laws by State, 2026
When You Actually Have to File
A state can tax you as a nonresident only on income with a real connection to that state. Wages earned while you were physically working there count, whether the job lasted two weeks or a year. So do rental income from property in the state, gains from selling real estate located there, and business revenue tied to operations in the state.
For remote services, most states look at where you were sitting when you did the work, not where your client sits. The location of your keyboard matters more than the location of your customer. One major exception, the convenience-of-the-employer rule, is covered further down.
Whether that source income triggers a return depends on the state’s threshold. Thresholds run from about $100 to over $15,000 depending on the state and filing status. Roughly 22 states set no minimum at all, so a single day of work can create a filing obligation. About eight states use day-based thresholds instead, usually 20 to 30 days of physical presence. Others tie the requirement to your federal return: if you had to file federally and had any income sourced to that state, you owe a return regardless of the amount.1Tax Foundation. Nonresident Income Tax Filing and Withholding Laws by State, 2026 You can owe a return even when your actual tax liability is zero.
Nine states don’t tax wage or salary income at all: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. Work performed in any of these produces no nonresident filing obligation.1Tax Foundation. Nonresident Income Tax Filing and Withholding Laws by State, 2026 A handful of income-tax states apply mutuality rules that tighten thresholds for residents of no-income-tax states, on the reasoning that the home state wouldn’t reciprocate with credits.
Reciprocal Agreements Can Skip the Return Entirely
Some neighboring states have reciprocal agreements that let commuters pay tax only to their home state, even if they cross a border daily to work. These arrangements are concentrated in the Mid-Atlantic, Midwest, and upper South. Virginia, for example, has reciprocity with Maryland, the District of Columbia, Pennsylvania, and West Virginia under certain conditions.
To use reciprocity, you give your employer a certificate of nonresidence or exemption form so they withhold for your home state instead of the work state. Miss that step, and your employer withholds for the work state by default; you’ll then have to file a nonresident return just to recover the money. Filing the form during onboarding avoids the whole cycle.
Reciprocity only covers wages and salaries. Rental income, business profits, or capital gains tied to the work state stay taxable there.
How the Credit for Taxes Paid to Another State Works
When no reciprocal agreement applies, you’ll usually owe the work state on the source income and your home state on your worldwide income, since most states tax residents on everything they earn. Nearly every income-tax state lets you offset this with a resident credit for taxes paid to another state, dollar for dollar up to a cap.
File the nonresident return first, because your home state won’t calculate the credit without seeing what you actually owed the work state. The credit is limited to the lesser of the tax you paid the other state or the tax your home state would have charged on the same income. If your work state charges 6% and your home state 4%, you pay the full 6% to the work state and the credit wipes out your home-state bill on that income. Flip the rates, and you pay 4% to the work state and still owe your home state the 2% gap. You end up paying the higher of the two rates on the out-of-state income, but rarely the full amount twice.
Remote Work and the Convenience Rule
The default rule sources wage income to the state where you’re physically working. Work from home in one state for a company headquartered in another, and most states will tax that income only where you’re located.
A few states apply a convenience-of-the-employer test instead. Under that approach, if you work remotely for your own convenience rather than because your employer requires it, the state where the office sits can tax your wages as if you commuted in every day. New York enforces this most aggressively, with an exception for remote work so narrow it rarely applies in practice.2National Conference of State Legislatures. State and Local Tax Considerations of Remote Work Arrangements Connecticut, Delaware, Nebraska, Pennsylvania, and Oregon apply some version of the rule, each differently.
The practical effect: a remote worker living in North Carolina and working for a New York employer can owe New York income tax on their full salary without ever setting foot in the state. If your employer is based in one of these states and you work remotely, assume you may have a nonresident filing obligation until you confirm otherwise.
Military Families Get a Separate Rule
Federal law overrides state nonresident rules for active-duty servicemembers and their spouses. Under the Servicemembers Civil Relief Act, a state where a servicemember is stationed cannot tax military pay if that state isn’t the servicemember’s permanent legal residence.3Office of the Law Revision Counsel. 50 USC 4001 – Taxes Respecting Persons in Military Service A servicemember stationed in Virginia but domiciled in Texas owes no Virginia tax on military wages.
The Military Spouses Residency Relief Act extends similar treatment to spouses. A military spouse can use the servicemember’s state of legal residence, their own prior residence, or the duty-station state as their tax domicile, and wages the spouse earns in the duty-station state are taxed only in that chosen domicile.4Congress.gov. Public Law 111-97 – Military Spouses Residency Relief Act The protection covers military compensation and the spouse’s wages only. Rental or other investment income remains taxable where it’s earned.
Calculating the Tax You Owe as a Nonresident
Most states use a two-step calculation. First, they compute the tax you’d owe if all your income had been earned in that state, using your full federal adjusted gross income and their brackets. Then they multiply by the percentage of income actually sourced to the state. This keeps you in the bracket that matches your real economic picture instead of the lowest one.
For wages, the sourcing percentage is typically days worked in the state divided by total work days for the year. Thirty days out of 240 puts 12.5% of your wages in that state. Some states count partial days and some don’t, and business days versus calendar days can differ, so keeping a travel log matters if you split time across states.
Nonresident forms generally show two columns: total federal income on one side, the amount sourced to the state on the other. Getting the allocation right is the core of the return.
What to Gather Before You File
Start with your W-2. Boxes 15 through 17 break out state wages and withholding, and employers should provide separate state lines if you worked in more than one state.5Internal Revenue Service. 2026 General Instructions for Forms W-2 and W-3 Independent contractors won’t get a 1099-NEC with state allocations; you have to reconstruct where the work happened from your own records.
You’ll also want:
- Your federal return, since most states start from federal adjusted gross income and want a copy attached.
- Travel records or work logs showing which days you worked in each state.
- Documentation for any state-specific business expenses or deductions tied to your work there.
Keep supporting records for at least three years after filing. That stretches to six years if you underreported income by more than 25%, and seven years for claims involving worthless securities or bad debts.6Internal Revenue Service. How Long Should I Keep Records
Filing Order, Deadlines, and Extensions
Most states set the nonresident deadline at April 15, matching federal, and shift to the next business day when April 15 falls on a weekend or holiday. Most offer a six-month extension to October 15, and many honor a federal extension automatically without a separate state form.
An extension to file is not an extension to pay. If you owe, estimate the amount and pay by the original April deadline, or interest starts accruing right away and penalties can follow.
Because the nonresident return feeds the credit on your home-state return, and both draw from your federal return, sequence matters: federal first, nonresident state second, home state last.
Filing itself can happen through the state’s free portal (where available), through commercial tax software (usually an added fee per state), or on paper. If you mail a return, use the specific nonresident address, which often differs from the resident one, and include a copy of your federal return. Electronic filing with direct deposit generally produces refunds within three to six weeks.
Estimated Payments for Income Without Withholding
If your nonresident income isn’t subject to withholding, such as freelance payments, rental income, or business profits, you may owe quarterly estimated tax to the work state. The federal safe harbor kicks in when you expect to owe $1,000 or more after withholding and credits, and most states use a similar approach with different dollar amounts.7Internal Revenue Service. Estimated Taxes
Federal quarterly deadlines for 2026 fall on April 15, June 15, September 15, and January 15, 2027, and state deadlines typically follow the same calendar.8Taxpayer Advocate Service. Making Estimated Tax Payments To avoid an underpayment penalty, you generally need to have paid at least 90% of the current year’s liability or 100% of the prior year’s, whichever is smaller.7Internal Revenue Service. Estimated Taxes Pick up a freelance client in a new state midyear and one or two quarterly deadlines may have already passed by the time you notice, so check the state’s estimated payment rules as soon as the income starts.
What Happens If You Skip the Return
Ignoring a nonresident obligation doesn’t make it disappear. States share information with each other and with the IRS, and a W-2 or 1099 showing income sourced to a state where you never filed is an easy flag. At the federal level, the failure-to-file penalty is 5% of unpaid tax per month, capped at 25%.9Internal Revenue Service. Failure to File Penalty Most states use similar structures with different percentages.
Interest on unpaid balances accrues from the original due date, not the extended deadline, and compounds until the balance is paid. State rates are often tied to the federal short-term rate plus a margin. A modest tax bill can grow significantly across a couple of years once penalties and interest stack.
If you discover a missed obligation from a prior year, filing late still beats not filing. Many states won’t assess the failure-to-file penalty once you’ve voluntarily submitted the return, and several run formal voluntary disclosure programs that reduce or eliminate penalties for taxpayers who come forward before the state contacts them.