Work in New Jersey, Live in Delaware: How Taxes Work

Reciprocity

Do New Jersey and Delaware Have a Tax Reciprocity Agreement?

No. New Jersey has a reciprocal income tax agreement with Pennsylvania, but not with Delaware or any other state. Under the NJ-PA agreement, compensation paid to Pennsylvania residents working in New Jersey is exempt from NJ tax, and vice versa. Delaware is not covered by this arrangement. Separately, Delaware does not have a reciprocity agreement with any state. The Delaware Division of Revenue states this directly in its withholding tax FAQ.

Without reciprocity, both states claim the right to tax the same wages. New Jersey taxes nonresidents on compensation earned within the state at graduated rates. Delaware taxes its residents on all income regardless of where it is earned, at rates up to 6.6%. A Delaware resident working in NJ therefore owes NJ nonresident tax and DE resident tax on the same wages, with the overlap resolved through Delaware's credit on Form PIT-RES, Line 28. If you are a New Jersey resident working in Delaware instead, see our reverse direction guide for the NJ credit on Schedule NJ-COJ.

Filing Obligations

Which Tax Returns Do I File as a DE Resident Working in NJ?

File the New Jersey nonresident return first. You need the final NJ tax figure to calculate the credit on your Delaware return. On NJ-1040NR, you report your income from everywhere, as if you were a New Jersey resident, and New Jersey calculates the tax on that total. It then multiplies the result by the percentage of your income that comes from New Jersey (lines 40 to 42), so the rate that applies depends on your worldwide income.

On Delaware Form PIT-RES, report all income from every source. Complete the Line 28 worksheet. If you paid taxes to more than one state, attach Schedule I with each state listed from highest to lowest credit. Attach a signed copy of your New Jersey return. Delaware disallows the credit without the other state's return.

New Jersey's 2025 return is due by April 15, 2026. Delaware's is due on or before April 30, 2026 for calendar-year filers, and Delaware grants an extension when you file its own Form PIT-EXT before the due date.

Resident Credit

How Does the Delaware Resident Credit Prevent Double Taxation?

Delaware taxes residents on all income at graduated rates up to 6.6%. New Jersey taxes nonresidents on NJ-source wages at graduated rates that range from 1.4% on the first $20,000 to 6.37% for income between $75,001 and $500,000, with higher brackets above that. Without a credit, you would pay both states' full tax on the same wages. The Line 28 credit on Form PIT-RES eliminates this overlap.

The credit equals the lesser of:

• The proportional Delaware tax on the income also taxed by New Jersey (Line 28 worksheet, Line 5), or
• The actual state income tax you paid to New Jersey, net of credits (Line 28 worksheet, Line 6)

For most earners below $500,000, Delaware's effective rate exceeds New Jersey's effective rate, so the credit covers the full NJ tax. Your total state income tax on the shared wages ends up equaling the Delaware amount. At very high incomes where NJ brackets surpass Delaware's 6.6% top rate, Delaware's credit covers only the proportional DE tax, and the excess NJ tax is a net additional cost.

If you have Delaware-source income that NJ did not tax, such as interest from a Delaware bank account or rental income from Delaware property, that income is taxed only by Delaware and does not factor into the Line 28 credit calculation.

Employer Withholding

How Should My New Jersey Employer Handle Withholding?

Your New Jersey employer withholds NJ Gross Income Tax based on the graduated rate schedule. This applies to all employees performing services in New Jersey, regardless of where they live. The employer does not withhold Delaware state income tax.

Because no Delaware withholding comes from your NJ employer, your PIT-RES return will likely show a balance due. If the residual Delaware tax after the Line 28 credit is large enough to trigger underpayment interest, make quarterly estimated payments to Delaware using Form PIT-EST. For 2026, the first payment is due April 30 and the second June 15.

Verify on your first pay stub that New Jersey withholding appears on the state tax line and that your Delaware home address is correctly coded. Confirm that any NJ withholding reported on your W-2 uses the NJ state code, not your home state of Delaware. If nothing was withheld, both states still require returns and both balances must be paid, with potential underpayment interest from each.

Convenience Rule

Does NJ's Convenience of the Employer Rule Apply to Delaware Residents?

Yes. New Jersey enacted a convenience of the employer sourcing rule, retroactive to January 1, 2023. It applies to residents of states that impose a similar test, and New Jersey names Delaware, Nebraska and New York as examples, noting that the list may change as other states change their laws. Under this rule, NJ employers must withhold New Jersey Gross Income Tax from Delaware resident employees who work remotely from their home state when the remote work is for the employee's own convenience rather than the employer's necessity.

This means a Delaware resident who telecommutes from home for an NJ employer may have that income sourced to New Jersey, even though no physical work was performed in the state. The exemption applies only when the employer requires the employee to work outside New Jersey and it is impossible to do the work in New Jersey.

Delaware then taxes the same income as resident income. Its Line 28 credit covers income taxes paid to another state on income earned in that other state, and Delaware's instructions do not say whether that includes days you physically worked at home in Delaware but New Jersey sources to itself. Those days can end up taxed twice, so keep records and get professional advice if a large share of your work is remote. For details on how this rule works across other state pairs, see our convenience of the employer rule guide.

Worked Example: DE Resident Earning $75,000 in New Jersey

Single filer, all wages NJ-source, 2025 NJ Rate Schedule A and DE graduated brackets applied before personal credits and standard deduction.

Remote Work

What If I Split My Workweek Between NJ and Delaware?

If you physically commute to New Jersey some days and work from your Delaware home other days, the allocation of income depends on whether the convenience rule applies. For days spent in New Jersey, the wages are clearly NJ-source. For days spent in Delaware, the outcome turns on whether you work remotely for your own convenience or by employer requirement.

If the employer requires you to work from Delaware on those days, the income is not NJ-source. If you choose to work from home for your own convenience, New Jersey may claim those wages under the convenience rule. Either way, Delaware taxes you as a resident on all income. The Line 28 credit clearly covers wages for days you worked in New Jersey. For home-office days New Jersey claims under the convenience rule, Delaware's credit rules leave the answer open, as explained above.

Keep a daily log of your work location. A written remote work policy from your employer clarifying which days require an NJ presence and which require a remote presence strengthens your position if New Jersey audits the allocation.

Rate Comparison

How Do Delaware and New Jersey Rates Compare on the Same Wages?

Delaware runs a graduated schedule that reaches 6.6% on taxable income above $60,000. New Jersey also uses a graduated schedule, starting at 1.4% and reaching 6.37% for income between $75,001 and $500,000, then climbing to 8.97% and 10.75% at higher levels.

Below $500,000 in income, Delaware's effective rate generally exceeds New Jersey's effective rate on the same wages. The Line 28 credit covers the full NJ tax, and your total state tax equals the Delaware amount. Above $500,000, New Jersey's higher brackets can push the NJ tax above the proportional Delaware tax, and the credit covers only the Delaware share. In that range, total state tax equals the NJ amount instead.

New Jersey does not add a local income tax on these wages. On the Delaware side, Delaware law lets the City of Wilmington tax the earned income of its residents from whatever source, capped at 1.25%, so a Wilmington resident owes that city tax on New Jersey wages too. Outside Wilmington, there is no extra local layer like Philadelphia's earnings tax on the Pennsylvania-Delaware corridor.

Mid-Year Move

What If I Moved Between Delaware and New Jersey During the Year?

If you changed your permanent residence between the two states during the year, New Jersey treats you as a part-year resident. For the months you lived outside New Jersey, NJ-1040NR reports only New Jersey-source income.

Delaware gives part-year residents a choice. You can file a resident return (PIT-RES) as if you had lived in Delaware all year, reporting all income and entering the dates of your Delaware residency, or a nonresident return (PIT-NON). Delaware suggests preparing both and filing the one that is more advantageous. The Line 28 credit for New Jersey tax is part of the resident return.

Keep proof of your move date. Lease or closing dates, utility records, and driver's license changes are the documents both states rely on if they need to confirm when your residency shifted.