Commuter taxes 2026

Live in Pennsylvania, work in Delaware

Without wage reciprocity, the work state may tax wages earned there. Your home state generally offers a limited credit for eligible tax paid on the same income. Filing requirements, credit limits and local taxes need a separate check.

Official tax guidance for both states

Check withholding, filing requirements and current forms with each state's tax agency.

Agency directory checked 2026-10-01 against the IRS state-government directory. This verifies the agency links, not an individual tax result. Use forms for the year you are filing.

Before you use this estimate

This model assumes a full-year resident of Pennsylvania, ordinary employee wages and all workdays physically in Delaware. Check exemption eligibility before treating a work-state amount of $0 as your own result. Withholding is a prepayment, not final tax liability. Other income, a move during the year, remote work and separate local taxes or credits can change the result.

State income tax: $5,259 a year

Modeled annual state income tax for living in Pennsylvania and working in Delaware: about $5,259 on $100,000 of wages, $2,189 more than if you worked in Pennsylvania.

Without wage reciprocity, the work state may tax wages earned there. Your home state generally offers a limited credit for eligible tax paid on the same income. Filing requirements, credit limits and local taxes need a separate check.

Tax guide and official sources: live in Pennsylvania, work in Delaware

Official agency starting points: Pennsylvania tax agency (opens in new tab) · Delaware tax agency (opens in new tab). These directory links identify the selected states' agencies, not your filing obligations. Check their individual-tax guidance and forms for the year you are filing.

Tax to Delaware
$5,259
nonresident
Tax to Pennsylvania
$0
resident, after credit
Total state tax
$5,259
Typical state returns
2

This is the usual filing pattern, not a determination that you must file. Filing thresholds, age or dependent status, other income and withholding refunds can change which returns you need.

How this $100,000 estimate adds up

These steps follow the selected home, work state, salary and filing status. They reconcile the model's annual liability, not the amounts withheld from your paycheck.

Modeled state income tax for Pennsylvania residence and Delaware work
StepDelaware work statePennsylvania home state
Tax before the modeled other-state credit$5,259$3,070
Modeled other-state credit subtracted$0$3,070
Tax after that credit$5,259$0

Total: $5,259 + $0 = $5,259 a year. Amounts are rounded for display. Work-state wage exemptions, when applicable, are already reflected in the first row; they are not an other-state credit.

The modeled credit is applied in Pennsylvania, the home state. Actual eligibility and credit limits require the state instructions. Included county components stay in these amounts; excluded local taxes and credits stay excluded. Federal income tax, payroll programs and refund eligibility are outside this reconciliation.

State tax at different salaries

WagesTo DETo PAModeled totalIf you worked in PA
$50,000$2,098$0$2,098$1,535
$75,000$3,609$0$3,609$2,303
$100,000$5,259$0$5,259$3,070
$150,000$8,559$0$8,559$4,605
$250,000$15,159$0$15,159$7,675

Single filer, all wages earned in Delaware, 2026 state tax rules, standard deductions. Local income taxes not included.

From paycheck withholding to your returns

  1. Withholding: Delaware payroll generally withholds on Delaware-source wages. Pennsylvania resident withholding or estimates may still be needed, after considering the eligible credit.
  2. Returns: Prepare Delaware PIT-NON, then Pennsylvania PA-40 with Schedule G-L for eligible Delaware tax on the same income. Retain the Delaware return for the credit claim.
  3. Credit or refund: Pennsylvania caps its credit at Pennsylvania tax on eligible overlapping income. Excess Delaware tax is not refunded by Pennsylvania; credit eligibility also depends on income sourcing and classification.

Worked example: $100,000 of wages

Single filer, full-year resident of Pennsylvania, all work performed in Delaware, no other income, standard deductions and modeled personal exemptions. Before credit, Pennsylvania tax is $3,070. Modeled Pennsylvania credit: $3,070. Pay $5,259 to Delaware and $0 to Pennsylvania, modeled total $5,259.

Annual liability, not paycheck withholding or a refund estimate. Federal tax, payroll programs, other local taxes, special credits and part-year residency are excluded. Local income taxes not included.

Remote-work and local exceptions

Do not assume every Pennsylvania home-working day is exempt from Delaware tax. Follow Delaware’s sourcing and employer-allocation guidance and keep work-location records. This example assigns all wages to Delaware and excludes Wilmington wage tax and Pennsylvania local taxes.

Official forms and instructions

Source audit 2026-10-01. Use the return and instructions for the year you are filing; a current-forms link may still show a prior-year return. Official sources checked; not independently reviewed.

What to do

Working from home for a Delaware employer

Delaware has a "convenience of the employer" rule. Full rule: days worked at home for convenience by nonresidents of DE-based employers count as DE workdays.

Local income taxes

Frequently asked questions

Do I pay Delaware income tax if I live in Pennsylvania?

Yes. Delaware taxes wages earned there by nonresidents. On $100,000 that's about $5,259.

Do I have to file taxes in both Pennsylvania and Delaware?

Prepare Delaware PIT-NON, then Pennsylvania PA-40 with Schedule G-L for eligible Delaware tax on the same income. Retain the Delaware return for the credit claim.

Will I be taxed twice?

The modeled state credit reduces overlap on eligible wages; separate local taxes or sourcing differences can still leave additional tax. Pennsylvania credits the tax you pay Delaware, so your total is about $5,259 on $100,000, compared with $3,070 if you also worked in Pennsylvania. Local city or county taxes may still apply.

Related

Rules reviewed 2026-09-24 from state revenue departments and the Tax Foundation. Estimates only; confirm with each state's revenue department.