Live in NJ, Work in Philadelphia: Wage Tax and NJ Credit

If you live in NJ and work in Philadelphia, your taxes break into three pieces: New Jersey income tax on all your wages, Philadelphia’s non-resident Wage Tax at 3.43% withheld from every paycheck, and zero Pennsylvania state income tax thanks to the PA/NJ reciprocal agreement. New Jersey then gives you a credit for the Philadelphia Wage Tax on your resident return, which prevents you from being taxed twice on the same dollars.

No Pennsylvania State Tax, but You Have to File a Form

Pennsylvania and New Jersey have a longstanding reciprocal agreement. Wages and salaries earned by a resident of one state while working in the other are taxed only by the home state.¹ Live in New Jersey, commute to Philadelphia, and your wages are subject to New Jersey income tax and completely exempt from Pennsylvania income tax.²

To make that work, give your employer Pennsylvania Form REV-419 (Employee’s Nonwithholding Application Certificate).³ It tells payroll to stop withholding Pennsylvania state tax and withhold New Jersey tax instead. Skip it and your employer will withhold PA tax by default, forcing you to file a Pennsylvania nonresident return (Form PA-40) just to get the money back.⁴ File the REV-419 during onboarding if you can. Every pay period without it means more money you have to chase down later.

On the New Jersey side, all your income, including your Philadelphia wages, goes on your resident return, Form NJ-1040. New Jersey is the only state with authority to tax those wages under the agreement.

The Philadelphia Wage Tax Still Hits

Here is where commuters get caught off guard. The reciprocal agreement does nothing about Philadelphia’s Wage Tax. The city imposes it on all compensation earned within city limits regardless of where the worker lives.⁵ It is a municipal tax, not a state tax, and no reciprocity shields you from it.

Your Philadelphia employer withholds it from every paycheck automatically. The non-resident rate effective July 1, 2025 is 3.43% of gross wages, and that rate applies to all compensation, including bonuses and commissions.⁵ Philadelphia adjusts the rate periodically, so a mid-year change is possible. The withheld amount appears in Box 19 of your W-2 at year-end.

Refunds for Days Worked Outside Philadelphia

If your job sends you to client sites, conferences, or other locations outside Philadelphia, you should not be paying Wage Tax on those days. Non-resident employees are the only workers eligible for a refund based on time spent working outside the city.⁶ Most employers withhold on your full salary without adjusting for travel days, so claiming the refund is on you.

File a refund petition through the Philadelphia Tax Center online. No username or password is required. You will need your W-2 information and a dates-and-locations worksheet showing where you worked each day. Your employer also has to sign a certification letter verifying those dates and locations, and Philadelphia will not process the refund without that signature.⁷ Mail filing is available but slower. Any refund claim must be filed within three years of the date the tax was paid or due, whichever is later.⁶

Remote Work: Employer Requirement vs. Your Convenience

Remote work adds a wrinkle. Philadelphia’s policy turns on whether you work from home because your employer requires it or because you prefer it. If your employer mandates remote work, for instance because there are not enough workstations in the Philadelphia office or because you need an ADA accommodation, your wages for those remote days are not subject to the Wage Tax.⁸

If your employer simply lets you work from home when you want, Philadelphia treats that as your convenience and the wages remain taxable. The same goes for at-home days you take for personal reasons like childcare, even with your manager’s approval. Manager approval is not the test. The test is whether the employer required you to be home. On a hybrid schedule where your employer requires two office days but lets you choose to come in on additional days, the days you chose to stay home stay taxable, because staying home was your option.⁸

If you qualify for the employer-requirement exemption, claim a refund for the over-withheld days through the same refund petition process.

Reduced Rate for Lower Earners

Philadelphia offers a reduced Wage Tax rate of 1.5% for qualifying taxpayers, both residents and non-residents, who meet certain income thresholds.⁵ As a New Jersey resident, you will not file Pennsylvania’s Schedule SP (tax forgiveness), so you include a signed copy of your New Jersey state return with your refund petition to prove you qualify for the income-based rate.⁷ The specific income thresholds appear on the refund petition form itself.

The New Jersey Credit That Prevents Double Taxation

Without a credit, you would pay the Philadelphia Wage Tax and full New Jersey income tax on the same wages. New Jersey prevents that by allowing a credit for income or wage taxes paid to other jurisdictions. Claim it on Schedule NJ-COJ, attached to your NJ-1040.⁹

The credit is not a dollar-for-dollar match. It is capped at the lesser of two amounts: the actual Philadelphia Wage Tax paid (shown in Box 19 of your W-2), or the New Jersey tax attributable to the Philadelphia-sourced income.⁹ The schedule walks you through both. Divide your Philadelphia income by your total New Jersey income to get a ratio, then multiply that ratio by your New Jersey tax to find the maximum credit.

In practice, if your New Jersey effective tax rate on that income is lower than Philadelphia’s 3.43% non-resident rate, you absorb the difference. The credit wipes out your New Jersey tax on the Philadelphia wages, but the portion of the Wage Tax that exceeds your New Jersey rate is gone for good. You end up paying the higher of the two rates on those wages, not both. Skip this schedule and you will overpay New Jersey by a significant amount.

What the Reciprocal Agreement Doesn’t Cover

The PA/NJ agreement covers compensation only: wages, salaries, tips, commissions, bonuses, and other employee pay. It does not cover self-employment income, capital gains, rental income, or investment income.¹

If you are a New Jersey resident earning self-employment income from a business or practice in Pennsylvania, you file a Pennsylvania nonresident return (PA-40) and pay Pennsylvania tax on that income, then claim a credit on your NJ-1040 using Schedule NJ-COJ. Nonresidents are generally not subject to Pennsylvania tax on ordinary interest and dividends from investments, unless those investments are connected to the operation of a business, profession, or farm in Pennsylvania.⁴ A Pennsylvania side business or a sale of Pennsylvania real estate brings a separate tax obligation the reciprocal agreement will not touch.

Getting Your Paycheck Withholding Right

Three separate taxes come out of your paycheck, and each has to be set up correctly. Check your pay stub for all three.

Pennsylvania state tax should be zero. If your employer has a current REV-419 on file, no PA state income tax should be withheld. Any PA state withholding means money you will have to reclaim by filing a PA-40, so contact payroll as soon as you see it.³
Philadelphia Wage Tax is mandatory. Your employer should withhold the non-resident rate (currently 3.43%) from every paycheck. If it is missing, you will owe the city a lump sum at year-end plus potential penalties.¹⁰
New Jersey state tax is based on your NJ-W4. File Form NJ-W4 with your employer to set the correct rate and allowances. Because you will claim a credit for the Philadelphia Wage Tax on your NJ return, your actual New Jersey tax liability on those wages is reduced, and some commuters adjust their NJ-W4 allowances upward to avoid over-withholding that ties up cash until refund time.¹¹

Deadlines and Philadelphia’s Penalties

Your New Jersey resident return (NJ-1040) for the 2025 tax year is due by April 15, 2026. New Jersey grants extensions to file but not to pay. If you owe money, it must be paid by the original deadline regardless of any extension.¹²

Philadelphia’s penalties are steeper than most people expect. Late payment of the Wage Tax triggers a penalty of 1.25% per month on the unpaid balance, plus interest at 9% per year (0.75% per month) for 2026.¹³ Those charges compound quickly. If your employer is not withholding the Wage Tax for any reason, do not wait until year-end to fix it.

1
NJ Division of Taxation. PA/NJ Reciprocal Income Tax Agreement
2
Commonwealth of Pennsylvania Department of Revenue. Determining Residency for PA Personal Income Tax Purposes
3
Lehigh University Finance Administration. Employee’s Nonwithholding Application Certificate (REV-419)
4
Commonwealth of Pennsylvania. Brief Overview and Filing Requirements
5
City of Philadelphia. Earnings Tax (employees)
6
City of Philadelphia. Wage Tax Refund Form (Salaried Employees)
7
City of Philadelphia. Request a Wage Tax Refund
8
City of Philadelphia Department of Revenue. Philadelphia Wage Tax Policy Guidance for Non-Resident Employees in the Era of Remote Work
9
NJ.gov. Schedule NJ-COJ – Credit for Income or Wage Taxes Paid to Other Jurisdiction
10
City of Philadelphia. Wage Tax (employers)
11
NJ Division of Taxation. Employee’s Withholding Allowance Certificate (Form NJ-W4)
12
NJ.gov. When to File and Pay – NJ Taxation
13
City of Philadelphia. Interest, Penalties, and Fees