A local income tax is a tax on wages, self-employment profits, or both that a city, county, school district, or special taxing district imposes on top of federal and state income tax. Whether you owe one depends on where you live, where you work, and in a few cases where your employer’s office sits. Roughly a dozen states let local governments levy these taxes, and inside those states about 5,000 separate jurisdictions set their own rates. The rates are usually modest, but the filing rules are strict, and the penalty for missing a return you didn’t know you had to file can end up larger than the tax itself.
Which States Even Have Them
Most Americans never encounter a local income tax because most states don’t authorize one. The states that do are concentrated in the Rust Belt and mid-Atlantic. In those states, the authority does not come from the city itself. State legislatures grant local governments the power to tax income and set the ceiling on rates. Some states give cities broad home-rule authority to design their own structures; others tightly control what local governments can reach. If your state hasn’t passed enabling legislation, your city cannot impose an income tax no matter what its budget looks like.
Inside states that do allow it, more than one jurisdiction can tax the same paycheck. A city tax, a school district tax, and a county tax can all apply at a single address.
The Three Common Forms
Earned Income Tax
The most common version taxes wages, salaries, and commissions. Unlike the federal income tax with its progressive brackets, local earned income taxes are almost always flat: everyone in the jurisdiction pays the same percentage, whether they earn $30,000 or $300,000. Rates typically fall between 0.5% and 3%. Passive income is generally left alone. Social Security benefits, pensions, dividends, and bank interest are usually exempt.
Local Services Tax
Some jurisdictions impose a small flat fee, sometimes called an occupational privilege tax, on anyone working within their borders. It’s a fixed annual amount rather than a percentage, and the employer withholds it in small increments across the year. Where the fee is meaningful, workers earning below roughly $12,000 a year are often exempt.
Net Profits Tax
Self-employed people and business owners pay a separate tax on net profits — gross revenue minus legitimate business expenses. The rate usually matches the earned income tax rate in the same jurisdiction, but there’s no employer withholding, so you calculate and remit the tax yourself, usually through quarterly estimated payments.
Who Owes What: Residence Versus Work Location
Your local tax bill turns on two things: where you live and where you work. Most jurisdictions tax residents on all earned income no matter where they perform the work, and they tax nonresidents on income earned inside their boundaries. Live and work in the same city, and you deal with one collector. Commute across a boundary and both jurisdictions may have a claim on the same paycheck.
To keep the same dollar from being fully taxed twice, many jurisdictions offer credits or have reciprocity agreements. A common arrangement: the tax withheld where you work is credited against what you owe where you live. If your work city charges 1% and your home city charges 1.5%, you’d pay the 1% at work and the 0.5% difference at home. The math isn’t always this clean, and not every pair of jurisdictions has a reciprocity arrangement, so some commuters end up paying both.
Nonresident Filing
Working even briefly in a jurisdiction with a local income tax can create a filing obligation. In some states, a single day of work in a city triggers a nonresident return, even if you owe only a few dollars. Your employer typically withholds for the jurisdiction where you physically work, but the responsibility for filing correctly falls on you. If withholding goes to the wrong place, or nothing is withheld at all, you have to sort it out at tax time.
Remote Work and the Convenience Rule
The default rule for remote work is straightforward: you owe local tax based on where you physically perform the work. Work from a home office in a suburb and you owe that suburb, not the city where your employer is headquartered.
The exception is the convenience of the employer doctrine. A handful of states and certain cities tax remote workers as if they were sitting at the employer’s office, unless the remote arrangement exists because the employer required it rather than because the employee preferred it. Under this rule, a remote worker living 200 miles from headquarters could owe local income tax to the city where the office sits, even without setting foot there during the year. If you work remotely for an employer in a different jurisdiction, check whether the employer’s location applies one of these rules before you file.
Moving Mid-Year
If you move from one taxing jurisdiction to another during the year, you owe each one based on the portion of the year you lived there. Four months in one city and eight months in another means four months of earnings taxed by the first city and eight months by the second. Most jurisdictions want a part-year resident return documenting your move date and the income tied to each period.
Keep records. You’ll need your exact move date, documentation of your new address, and possibly a copy of the return you filed with the other jurisdiction to show you aren’t double-reporting. Tell your employer promptly so payroll starts withholding for the correct municipality. Waiting means months of wrong withholding to reconcile later.
If You’re Self-Employed
Most local jurisdictions expect self-employed filers to make quarterly estimated payments rather than settle up once a year. The deadlines generally mirror the federal schedule: April 15, June 15, September 15, and January 15 of the following year. Missing a quarter can generate underpayment penalties on top of the tax.
The tax is calculated on net profits, so you’ll typically need your federal Schedule C or equivalent to arrive at what the local jurisdiction considers taxable. Some jurisdictions waive the quarterly requirement below a certain income threshold, but the threshold varies. Anyone new to self-employment, coming from a W-2 job where local tax was quietly withheld, should plan for this shift before the first quarter’s payment is due.
Military Members and Spouses
Federal law protects active-duty servicemembers and their spouses who are stationed away from their legal home. Under the Servicemembers Civil Relief Act, military compensation earned by a servicemember cannot be taxed by a jurisdiction where they’re stationed solely due to military orders, as long as they keep a different legal domicile.1Office of the Law Revision Counsel. United States Code Title 50 – 4001 Residence for Tax Purposes A servicemember domiciled in a state with no local income tax owes nothing to the city around the duty station.
Spouses get a similar shield. The law lets a married couple elect any of three options for tax residency: the servicemember’s domicile, the spouse’s domicile, or the permanent duty station.1Office of the Law Revision Counsel. United States Code Title 50 – 4001 Residence for Tax Purposes A civilian spouse working near a base can choose to be taxed as a resident of the servicemember’s home state. These protections cover military-related income; outside earnings, like rent from a property somewhere else, may still be taxable there.
Filing Your Return
What You’ll Need
Your W-2 is the starting point. Boxes 18 and 19 show local taxable wages and the local tax already withheld. If you worked in more than one locality, you may see multiple entries or receive more than one W-2. Self-employed filers need their 1099-NEC forms and federal Schedule C.
In some states you’ll also need a geographic code identifying your exact taxing jurisdiction, since a city, county, and school district can each levy separate taxes at the same address. State agencies maintain online lookup tools for these codes. New job or new address usually means filling out a residency certification form so your employer’s payroll routes withholding correctly.
Deadline and Method
Most local returns are due April 15, matching the federal deadline. Many jurisdictions offer online filing portals; paper filers mail their forms and W-2 copies to the regional collection agency that processes returns for their area. In states with thousands of small taxing districts, one regional agency often handles dozens of municipalities.
One point that trips people up: even if your employer withheld the exact right amount all year and you expect no refund, many jurisdictions still require an annual return. Not filing is treated the same as not paying, and it can trigger penalties even when you owe nothing more.
Penalties for Filing Late or Not at All
Rules vary but follow a pattern. Most jurisdictions charge interest on unpaid balances, often around 1% per month, plus a separate late-filing penalty that can reach 25% of the unpaid tax. Some also add flat-fee penalties from roughly $50 to $250 just for filing late, regardless of whether more tax was owed.
Delinquent accounts get turned over to collection agencies, which add their own fees. Because local tax bills are often small, penalties and collection costs sometimes exceed the original tax. If you realize you missed a prior-year return, filing voluntarily before the jurisdiction contacts you is almost always cheaper than waiting for a notice.
Deducting Local Income Tax on Your Federal Return
Local income taxes you paid during the year are deductible on your federal return if you itemize. Federal law treats state and local income taxes, property taxes, and sales taxes all as deductible taxes.2Office of the Law Revision Counsel. United States Code Title 26 – 164 Taxes The combined deduction for all state and local taxes is capped.
For the 2026 tax year, the cap is $40,400 for most filers, and it begins phasing down for taxpayers with income above $505,000. Starting in 2030, the cap is scheduled to drop back to $10,000.2Office of the Law Revision Counsel. United States Code Title 26 – 164 Taxes Most workers with modest local rates won’t hit the cap, but people in high-tax areas who also pay large property tax bills can. Keeping a running total of local income tax paid each year gives you what you need to claim the deduction if itemizing works out.