If Box 18 and Box 19 are blank on your W-2, your employer didn’t report any local income tax wages or withholding for you, and for most American workers that’s exactly right. Local income taxes only exist in about 5,000 jurisdictions across roughly 17 states, so if neither your home nor your workplace sits inside one of those places, the empty boxes are correct and there’s nothing to fix. If you do live or work in a taxing locality, blank boxes can mean something different: your employer wasn’t required to withhold, a reciprocal agreement kept the tax off your paycheck, or someone in payroll made a mistake.
What Boxes 18 and 19 Are For
Boxes 18, 19, and 20 sit at the bottom of the W-2 and work as a set. Box 18 shows wages subject to a local income tax. Box 19 shows how much local tax your employer withheld. Box 20 names the locality: a city, county, municipality, or school district. These three boxes cover local taxes only, separate from federal wages in Boxes 1 through 14 and state information in Boxes 15 through 17.1Internal Revenue Service. General Instructions for Forms W-2 and W-3 (2026)
Why Boxes 18 and 19 Are Usually Blank
The most common reason is that no local income tax applies to you. Local income taxes are concentrated in states like Ohio, Pennsylvania, Indiana, Maryland, Kentucky, New York, and Michigan, plus a handful of others. Workers who live and work outside those states typically never see anything in these boxes.
Your Employer Wasn’t Required to Withhold
Even if your home city or county taxes income, your employer may not have to withhold it. This comes up often when you work for a company based in a different state. Many states don’t require out-of-state employers to register with local tax collectors on behalf of employees living elsewhere. Boxes 18 and 19 stay blank not because you don’t owe the tax but because withholding it wasn’t the employer’s job. Paying it is on you.
A Reciprocal Agreement Applies
Some neighboring jurisdictions have reciprocal agreements that prevent double taxation when you live in one taxing locality and work in another. Under these agreements, only your home jurisdiction taxes your wages, and the employer withholds only for that one. If the work-location tax doesn’t apply, its row on the W-2 stays blank while your home locality’s data still appears.
How to Tell If You Actually Owe Local Tax
Blank boxes don’t automatically mean you’re clear. Two questions decide it: where you live and where you work. Some local taxes apply to residents regardless of where they earn their income. Others apply to anyone working within the jurisdiction, resident or not. Some cities do both, taxing residents on all income and nonresidents on wages earned there.
The quickest check is to search your city or county government website for “income tax” or “earned income tax.” Jurisdictions that impose these taxes almost always publish a page on rates, filing requirements, and deadlines. City limits don’t always match ZIP codes, so if you’re not sure whether your address is inside a taxing municipality, your county tax office or local tax collector’s website can confirm.
Watch out for mid-year moves. If you moved between jurisdictions during the year, you may owe local tax in your old one for the months you lived there and in the new one for the rest. That split is one of the most common reasons people miss a local filing.
What to Do If You Owe but Nothing Was Withheld
If you live or work in a local tax jurisdiction and your employer didn’t withhold, you still owe the tax. The reason it wasn’t withheld doesn’t matter to the local tax authority.
To figure out what you owe, start with the wage figure in Box 1 (federal wages) or Box 16 (state wages), depending on which one your local jurisdiction uses as its starting point. Apply the local rate. Rates vary widely: some smaller jurisdictions charge a fraction of a percent, while Philadelphia’s rate runs close to 4% and New York City’s above 3%.1Internal Revenue Service. General Instructions for Forms W-2 and W-3 (2026)
You file directly with the local tax authority, not the IRS and not your state. Many localities also expect quarterly estimated payments when no employer is withholding, so check whether you should be making those going forward to avoid underpayment penalties. Local tax agencies enforce collection with liens, wage garnishment, and bank levies, so an unpaid balance doesn’t quietly go away.
When Blank Boxes Are a Payroll Error
If your pay stubs show local tax was deducted during the year but Boxes 18 and 19 are blank on the W-2, that’s a payroll mistake. Contact HR or payroll and ask them to review the withholding records. The employer fixes it by issuing a Form W-2c, the IRS form for correcting errors on an original W-2.2Internal Revenue Service. About Form W-2 C, Corrected Wage and Tax Statements
Wait for the W-2c before filing if you can. Filing with missing local data can prompt notices from the local tax authority saying you didn’t claim withholding credits you’re entitled to, which creates avoidable back-and-forth. If April 15 is closing in and payroll is slow, you can file Form 4868 for an automatic six-month federal extension.3Internal Revenue Service. Form 4868 – Application for Automatic Extension of Time To File U.S. Individual Income Tax Return An extension gives you more time to file, not more time to pay. Any federal tax you owe is still due April 15.4Internal Revenue Service. IRS Reminds Taxpayers an Extension to File Is Not an Extension to Pay Taxes Estimate what you owe and send that payment with the extension request. Local jurisdictions often offer their own filing extensions with their own procedures, so check separately.
How Local Tax Paid Affects Your Federal Return
Local income tax you pay, whether withheld by your employer or paid directly, counts toward the state and local tax (SALT) deduction on Schedule A, Line 5a, along with state income taxes withheld or paid.5Internal Revenue Service. Instructions for Schedule A (2024) It only helps if you itemize instead of taking the standard deduction.
For 2026, the SALT deduction is capped at $40,400 for state income taxes, local income taxes, and property taxes combined. The cap begins phasing down once adjusted gross income exceeds $505,000. If you paid local tax directly because your employer didn’t withhold, remember to add those payments to Schedule A. They won’t appear on your W-2, so they’re easy to overlook.
If no local tax applies to you, none of this matters for your federal or state return. Blank Boxes 18 and 19 mean one less thing to think about, and you can file both returns without giving them another look.