Filing a local income tax return applies to you if you live or work in one of roughly 5,000 U.S. jurisdictions, spread across about 16 states, that collect a tax on earned income. Where it applies, the return itself is short: you transfer your local wages from your W-2, apply the local rate, subtract what your employer already withheld, and submit the form to whichever city, county, school district, or regional collector administers your area. Most local returns are due on the same date as your federal return.
Local income tax rates range from a fraction of a percent to nearly 4% of earned income. The rules for who pays, what income counts, and where to send the return vary between neighboring towns, so the specifics below need to be checked against your own jurisdiction before you file.
Does a Local Income Tax Apply to You
Most Americans do not live or work in a jurisdiction that collects a local income tax. These taxes are concentrated in a small set of states, most prominently Ohio, Pennsylvania, Indiana, Kentucky, Maryland, and Michigan, where hundreds or thousands of municipalities, school districts, and counties impose them. A smaller number of cities elsewhere collect them on their own, including several in Alabama, Missouri, and New York.
The taxing entity might be a city, a borough, a county, a school district, or a special district, and at a single address you could owe two or three overlapping local entities at once. The authority to tax income locally comes from state enabling legislation, so whether your locality can tax income at all depends on what your state permits. If you recently moved or started a new job, the fastest ways to check are your employer’s payroll department, Box 20 of your W-2, and your local government’s website.
Who Owes Local Income Tax
Liability usually comes from one of two connections: living in the jurisdiction, or earning money in it.
Residency is the first trigger. If you keep a permanent home in a taxing jurisdiction, you owe that tax on your qualifying income for the year. Residency generally follows the place you treat as your fixed home base, shown by where you register to vote, where your driver’s license is issued, and where you receive mail. Time spent away for work or travel does not change that.
Employment is the second trigger. When you perform work inside a taxing jurisdiction, that jurisdiction can tax the income you earn there even if you live somewhere else. Most employers handle this automatically by withholding based on your work-site address.
If You Moved During the Year
Move between taxing jurisdictions and each one generally gets a share of your annual earned income proportional to the time you lived there. The usual method is to count full months of residency and allocate accordingly, though some jurisdictions treat 15 or more days in a month as a full month. You may need to file separate returns with each locality, each reporting only the income earned during your residency there.
If You Work Remotely
Remote work has created real confusion about which locality can tax you. Some jurisdictions tax based on where the employer is located regardless of where the work is done. Others tax only based on where the employee actually sits. If you work remotely across municipal lines, check the specific rules for both your home jurisdiction and your employer’s jurisdiction rather than assuming a single approach applies.
Active-Duty Military
Under the Servicemembers Civil Relief Act, military compensation cannot be treated as income earned in or sourced from any jurisdiction where the service member is stationed but does not maintain legal residence.1Office of the Law Revision Counsel. 50 USC 4001 – Servicemembers Civil Relief The statute defines “tax jurisdiction” to include political subdivisions, so the protection covers local income taxes, not just state-level taxes. A service member stationed in a city with a local income tax owes it only if that city is also their legal domicile.
What Income Gets Taxed Locally
Most local income taxes reach earned income only: wages, salaries, tips, commissions, bonuses, vacation pay, and sick pay. Many jurisdictions also tax net profits from self-employment or sole proprietorships operated by residents. The base is usually narrower than what you report federally.
Unearned income is frequently exempt. Social Security benefits, pension payments, unemployment compensation, savings interest, capital gains, and dividends are excluded from the local base in most jurisdictions that impose these taxes. Reporting non-taxable income on a local return can lead to overpayment, so separate earned from unearned before you calculate what you owe.
Reciprocity Credits When You Live and Work in Different Places
Live in one taxing municipality and work in another, and you could theoretically owe both. Reciprocity credits are what prevent double taxation. Your home municipality gives you a credit for the tax already paid to your work-site municipality, typically limited to the lesser of the tax actually paid there or the tax your home jurisdiction would have charged on the same income.
In practice, you pay the higher of the two rates. If your workplace charges 1% and your home charges 1.5%, you pay 1% to the workplace and 0.5% to your home. If the workplace rate is higher, you owe nothing extra to your home municipality, but you also do not get the difference back. Not every pair of jurisdictions has a reciprocity arrangement, and some states handle it through statutory rules rather than bilateral agreements. Where no arrangement exists, you may genuinely owe both places on the same income, so confirm before filing.
Documents You Need
The foundation of the return is your W-2. Three boxes at the bottom carry the local data: Box 18 shows total wages subject to local income tax, Box 19 shows how much local tax your employer withheld, and Box 20 identifies the specific locality that received it.2Internal Revenue Service. Form W-2 Wage and Tax Statement If you worked in more than one locality during the year, you may receive multiple W-2s or a single W-2 with multiple local entries.
Self-employed filers need federal Schedule C, which reports net profit or loss from a business you operate as a sole proprietor.3Internal Revenue Service. About Schedule C (Form 1040), Profit or Loss From Business The net profit figure is what most jurisdictions use as the local taxable amount for self-employment income. Gather any 1099s reporting freelance or contract income as well, since those document the gross amounts you will reconcile against Schedule C.
Most local tax agencies also want a copy of your federal Form 1040 and your state return so they can verify the income figures match. Finish those first, and the local return becomes mostly a matter of transferring numbers you have already calculated.
Deadlines, Where to File, and Extensions
Local returns are generally due on the same date as the federal return. For 2026, that deadline is April 15.4Internal Revenue Service. When to File If April 15 falls on a weekend or legal holiday, the deadline shifts to the next business day. Paper returns must carry a postmark on or before the deadline to count as timely.
Many local agencies and third-party collectors run electronic filing portals that issue an immediate confirmation number as proof of submission. If you owe, you can typically pay by electronic funds transfer on the portal or mail a check with a payment voucher. Electronic filing tends to speed up any refund.
Finding the Right Tax Administrator
Some jurisdictions collect directly through a city or county tax office. Others outsource collection to regional agencies that administer returns for hundreds of municipalities through centralized portals. Box 20 of your W-2 and your employer’s payroll department are the quickest way to identify who handles your filing, and your municipality’s website will list the designated collector and link to the correct forms. Filing through the wrong portal or mailing to the wrong agency is a common mistake that can trigger a late-filing notice even when you filed on time.
Extensions
Many local jurisdictions accept a federal extension as an automatic extension for the local return. That gives you more time to file the paperwork but not more time to pay. Any tax you owe is still due by the original April deadline, and interest and penalties start accruing on unpaid balances after that date whether or not you have a valid extension on file.5Internal Revenue Service. Taxpayers Who Need More Time to File a Federal Tax Return Should Request an Extension If you know you will owe but need more time to complete the return, estimate the liability and send a payment by the original deadline.
Filling Out the Return
The mechanics are simpler than most people expect. Transfer the local wage figure from Box 18 of your W-2 to the gross earnings line on the local form. If you have self-employment income, add your net profit from Schedule C. Apply the local rate to that combined total for your gross tax liability.
Then subtract the local tax already withheld by your employer, shown in Box 19. If you live and work in different taxing jurisdictions, this is also where you apply the reciprocity credit for tax paid to the work-site municipality. What remains is either a balance due or a refund. Confirm that the locality code in Box 20 matches the jurisdiction you are filing with, especially if you changed jobs or work sites during the year. A mismatch between where your employer sent the withholding and where you are filing can delay processing or generate a notice from the agency.
Estimated Payments If You Are Self-Employed
If you are self-employed, a freelancer, or a gig worker, no employer is withholding local tax from your pay. Many local jurisdictions require quarterly estimated payments, similar to the federal system. The federal quarterly deadlines for 2026 are April 15, June 15, September 15, and January 15 of the following year.6Taxpayer Advocate Service. Your Tax To-Do List: Important Tax Dates Local schedules often mirror those dates, but some jurisdictions set their own, so verify with your local agency.
To calculate a quarterly payment, estimate your annual net profit from self-employment, apply your local rate, and divide by four. The IRS uses the Form 1040-ES worksheets to determine whether federal estimated payments are required, and the same logic applies locally.7Internal Revenue Service. Self-Employed Individuals Tax Center Skipping estimated payments and settling up in April can generate underpayment penalties even if you pay the full balance by the filing deadline.
Penalties for Filing or Paying Late
Penalties vary widely between jurisdictions, so there is no single national rate. Most jurisdictions impose two separate penalties: one for filing late and one for paying late. They generally run concurrently, so you can be hit with both if you miss the deadline entirely.
Late-filing penalties are often a flat fee, a percentage of the unpaid tax, or both. Flat fees commonly fall between $25 and $100, though some jurisdictions charge more. Percentage-based penalties accrue monthly on the outstanding balance. Interest on unpaid tax is separate from penalties and compounds over time. Some municipalities also share data with state revenue departments to identify residents or workers who have not filed.
In more serious cases, local ordinances may authorize a civil suit to collect unpaid tax, or a criminal citation for willful failure to file. Court costs, collection fees, and accumulated interest can turn a small tax bill into a much larger one. Filing on time even when you cannot pay in full almost always reduces the total, since most jurisdictions treat failure to file as more serious than failure to pay.