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Residency Migration Reference

Moving from Pennsylvania to Delaware: Residency, Taxes, and What to Prove

Pennsylvania's 3.07% top income tax rate becomes 6.6% in Delaware. This move trades a lighter tax environment for a heavier one, so timing income around the transition year matters.

Leaving PennsylvaniaEstablishing DelawareTier 3 corridor

Residency Tests Side by Side

Pennsylvania and Delaware both use a 183-day statutory residency threshold, so the day-count mechanics will feel familiar even though the underlying facts and enforcement differ.

FactorPennsylvaniaDelaware
Statutory Residency TestA person domiciled outside Pennsylvania becomes a Pennsylvania statutory resident, taxed the same as a domiciliary, if they maintain a permanent place of abode in Pennsylvania and spend more than 183 days in the state during the tax year. This runs independently of, and in addition to, the domicile test.Under 30 Del. C. § 1103, an individual who maintains a place of abode in Delaware and spends in the aggregate more than 183 days of the taxable year in Delaware is a resident for that portion of the year, independent of domicile. This mirrors the classic New York-style 183-day-plus-abode formulation used across much of the Northeast and mid-Atlantic.
Domicile TestPennsylvania residents are taxed on all income, Pennsylvania-source and otherwise, based on domicile: the place a person regards as home and intends to return to. The Department of Revenue's guidance lists the practical factors it weighs, where the person spends most of their time, where they maintain bank accounts, where they own real estate, where they hold professional licenses, where they vote, and where they hold a driver's license and register vehicles, the same multi-factor evidentiary approach used in New York and other statutory-resident states.Delaware treats an individual domiciled in Delaware as a resident for the period of that domicile under 30 Del. C. § 1103. Domicile itself follows the common-law standard cited in Delaware practitioner guidance: the place a person intends as their permanent home and to which they intend to return, with a person able to hold only one domicile at a time; Delaware's statute does not publish an extensive itemized factor list the way Maine or New York do, so practitioners apply the general totality-of-circumstances domicile factors (home ownership, employment, family location, licensing, and consistent documentation across financial and civic records).
Day Count Threshold183 days183 days
Any Part of a Day RuleNot explicitly detailed as any-part-of-a-day in the Department's published guidance reviewed for this research; the statutory test is framed as spending more than 183 days in Pennsylvania while maintaining a permanent place of abode, so the safe planning assumption is that any day of Pennsylvania presence, however brief, counts toward the total.Not independently confirmed in the statutory text reviewed for this dossier; consult 30 Del. C. § 1103 and Division of Revenue guidance directly, but treat any Delaware presence conservatively as a full day for planning purposes, consistent with the norm in comparable 183-day-plus-abode states.
PresumptionsNone publishedNone published
Safe HarborsNon-permanent abode carve-outForeign residence exception to domicile-based residency

Leaving Pennsylvania

High exit scrutiny (3/5)

Philadelphia's collar counties (Montgomery, Bucks, Chester, Delaware) and the Pittsburgh suburbs are the areas practitioners most associate with Pennsylvania domicile disputes, typically retirees or high earners who move to Florida or another no-income-tax state but keep a Pennsylvania home, spend significant time there, and maintain local professional or business ties. Pennsylvania is not consistently named alongside New York, California, New Jersey, Connecticut, Maryland, and Minnesota as one of the most aggressive dedicated exit-audit states in the practitioner and community sources reviewed for this research, but the statutory-resident 183-day-plus-abode test gives the Department a straightforward mechanism to challenge a departure if the taxpayer keeps a maintainable Pennsylvania residence and spends too much time in it.

Trailing Income

Pennsylvania taxes Pennsylvania-source income earned by a nonresident after departure under its standard sourcing framework, wages for work performed in Pennsylvania, income from a Pennsylvania business, and Pennsylvania real property income; no Pennsylvania-specific deferred-compensation clawback statute distinct from ordinary multistate sourcing was located in this research pass. Separately, local EIT obligations can continue to apply based on where work is actually performed even after a person's state domicile has changed.

Part-Year Filing

Part-year residents file Form PA-40, the same form used by full-year residents and nonresidents, using the residency status and apportionment schedules to report worldwide income for the Pennsylvania-resident portion of the year and only Pennsylvania-source income for the nonresident portion.

Enforcement Methods

183-day-plus-permanent-abode statutory residency test applied independently of domicile claims
domicile factor review: time spent, bank accounts, real estate, professional licenses, voter registration, driver's license and vehicle registration
local Earned Income Tax filings through county Tax Collection Districts, which can reveal a taxpayer's claimed municipality of residence and expose inconsistencies with a stated out-of-state domicile
W-2 and 1099 information matching against Pennsylvania-source income

Common Exit Mistakes

keeping a Pennsylvania home in a maintainable condition (not truly non-permanent lodging) and spending more than 183 days there after claiming to have moved, which triggers statutory residency independent of domicile intent
not updating local Earned Income Tax registration and municipality-of-residence records with the county Tax Collection District, leaving a paper trail that contradicts the domicile-change claim
assuming the Homestead Exclusion or Philadelphia Homestead Exemption can be quietly kept active on a Pennsylvania property after moving, which is itself a sworn representation of primary residence that undercuts an exit claim if challenged

Establishing Delaware Residency

ActionAgencyDeadline
Get a Delaware driver's licenseDelaware Division of Motor Vehicles (DMV)within 60 days of establishing residency
Register vehiclesDelaware DMVwithin 60 days of taking up residence (21 Del. C. § 2118)
Register to voteDelaware Department of Electionsthe 4th Saturday before a Primary or General Election

Declaration of Domicile

Delaware has no formal declaration-of-domicile filing comparable to Florida's. Domicile is established through conduct: obtaining a Delaware driver's license and vehicle registration, registering to vote, and maintaining a Delaware address as the address of record on financial, employment, and legal documents.

Homestead

Delaware has no broad homestead exemption reducing assessed property value the way Florida or Maine does. Its very low average effective property tax rate (roughly 0.50%-0.54%) already limits the practical stakes of the issue, but this also means Delaware offers no homestead-style filing that would otherwise serve as strong, easily documented evidence of domicile for a new resident.

Voter Registration

Register online through ivote.de.gov, in person at the DMV or a Department of Elections office, or by mail; the deadline is the 4th Saturday before a Primary or General Election under Delaware Code. https://ivote.de.gov

Vehicle Registration Deadline

60 days

New Resident Tax Traps

A new Delaware resident is taxed on worldwide income from the date domicile shifts, the standard rule. The distinctive Delaware trap runs the other way for people moving OUT while keeping a Delaware employer: Delaware's convenience-of-the-employer rule means a new Delaware resident who works remotely for an out-of-state employer generally faces no special Delaware trap, but anyone leaving Delaware for a Delaware-based job needs to plan for the reverse issue at exit.

What Changes on Tax

Pennsylvania Top Rate

3.07%

Delaware Top Rate

6.6%

Moving from Pennsylvania to Delaware raises the top marginal income tax rate from about 3.07% to about 6.6%, an increase of roughly 3.53 percentage points.

Withholding Reciprocity

Pennsylvania and Delaware do not have a wage-withholding reciprocity agreement with each other, so this move follows ordinary source-state and resident-state filing rules rather than a reciprocity exception.

Community Property Transition

Pennsylvania and Delaware both use common law, equitable-distribution marital property rules, so no community property transition applies to this move.

Beyond Income Tax

Pennsylvania

Capital gains: Capital gains are one of Pennsylvania's eight enumerated income classes and are taxed at the same flat 3.07% rate as wages; there is no separate lower rate or holding-period distinction the way the federal system has.

Estate or inheritance tax: Pennsylvania has no estate tax but does impose an inheritance tax on the transfer of a decedent's property, based on the beneficiary's relationship to the decedent: 0% to a surviving spouse or to a parent inheriting from a child 21 or younger, 4.5% to direct descendants and other lineal heirs, 12% to siblings, and 15% to all other heirs. The tax is due at death and becomes delinquent nine months later, with a 5% discount for payment within three months.

Property tax: Effective property tax rate on owner-occupied housing runs about 1.26%, on the higher side nationally, reflecting Pennsylvania's heavy reliance on local property taxes to fund school districts. Homeowners can apply for the statewide Homestead/Farmstead Exclusion under Act 1 of 2006, which reduces school property tax using gaming revenue, and Philadelphia separately runs its own Homestead Exemption reducing the taxable assessed value of an owner-occupied primary residence; this research pass could not confirm the current dollar amount of Philadelphia's exemption from a primary city source.

Sales tax: 6% state sales tax rate, with Philadelphia and Allegheny County adding local surcharges that push the average combined state-and-local rate to about 6.34%.

Delaware

Capital gains: Taxed as ordinary income with no separate Delaware capital gains rate or broad exclusion; a capital gain is added to Delaware taxable income and taxed at the same graduated rates as wages, up to 6.6%.

Estate or inheritance tax: None. Delaware repealed its estate tax effective January 1, 2018, and has no separate inheritance tax, making it one of the more estate-tax-friendly mid-Atlantic states alongside its long-standing reputation for trust-friendly law through the Delaware Court of Chancery.

Property tax: Delaware has one of the lowest average effective property tax rates in the country, commonly cited around 0.50% to 0.54% of home value, the product of county assessments in New Castle, Kent, and Sussex counties that have gone many years between full reassessments.

Sales tax: None. Delaware has no state or local sales tax at all, a signature draw for the Wilmington-area shopping corridor that pulls consumers from Pennsylvania, New Jersey, and Maryland.

Who This Move Applies To

Travel Nurses

In Pennsylvania

Philadelphia and Pittsburgh's major hospital systems are large travel-nursing markets, and a nurse working Pennsylvania contracts needs to watch the statutory residency test: crossing 183 days of Pennsylvania presence while maintaining anything that qualifies as a permanent (not purely temporary) place of abode, an apartment lease rather than short-term corporate housing, for example, can pull the nurse into Pennsylvania statutory residency regardless of a claimed tax home elsewhere.

In Delaware

Delaware has no nurse-specific tax-home guidance; the general IRS tax-home rules under Publication 463 govern whether stipends stay tax-free, and Delaware's own residency status for a nurse turns on the same 183-day-plus-abode or domicile tests everyone else faces under 30 Del. C. § 1103.

Professional Athletes

In Pennsylvania

Philadelphia is home to the Eagles (NFL), Phillies (MLB), 76ers (NBA), and Flyers (NHL), making it one of the country's most active jock-tax markets; visiting players owe Pennsylvania nonresident tax apportioned by duty days spent in the state for games, practices, and team activities under the standard multistate duty-day framework, while Pennsylvania-based players are taxed on their full income at the flat 3.07% state rate plus any applicable Philadelphia wage tax, with credits for tax paid to other states on away-game income.

In Delaware

Delaware has no major professional sports franchises, so it runs no state-specific jock-tax apportionment regime. A Delaware-domiciled athlete owes Delaware tax on worldwide income (with credits for tax paid to other states on away-game duty days) but faces no in-state team creating reciprocal audit interest from opposing states.

Snowbirds, Long Visitors, and RVers

In Pennsylvania

A Pennsylvania domiciliary who winters in Florida or another warm-weather state but keeps the Pennsylvania home in maintainable condition and returns for more than half the year remains a Pennsylvania resident on domicile grounds alone; the more contested scenario is the reverse, someone who has genuinely moved their domicile out of Pennsylvania but keeps a Pennsylvania house available and visits often enough to cross 183 days, which can trigger Pennsylvania statutory residency even after a real domicile change, unless the retained property qualifies as non-permanent lodging (which a fully maintained house generally does not).

In Delaware

Delaware's beach communities (Rehoboth, Bethany, Lewes) draw significant seasonal second-home ownership from Pennsylvania, Maryland, and Washington D.C. Anyone who keeps a Delaware beach house and crosses 183 aggregate days of Delaware presence in a year, while maintaining that home as a place of abode, becomes a Delaware statutory resident regardless of where they claim domicile, the same mechanic that applies in New York or Vermont.

Remote Workers

In Pennsylvania

Pennsylvania has no convenience-of-the-employer rule of its own; a remote worker physically performing work from Pennsylvania for an out-of-state employer generally owes Pennsylvania tax on that Pennsylvania-source income based on physical presence, and does not separately owe the employer's home state tax on those same wages unless that state applies its own convenience rule, which is the scenario Pennsylvania arrivals from convenience-rule states like New York need to watch in their employer's withholding treatment. Pennsylvania also has long-documented reciprocal wage-tax agreements with several neighboring states (commonly cited as Indiana, Maryland, New Jersey, Ohio, Virginia, and West Virginia), under which a resident of one state working in the other pays tax only to their state of residence rather than both; this research pass could not obtain a fresh confirmation directly from the Department of Revenue's site this session, so verify current reciprocal-state status before relying on it for a specific filing.

In Delaware

This is Delaware's most distinctive special-situation fact: Delaware applies a convenience-of-the-employer rule, treating work done from home by an employee of a Delaware-based company as Delaware-source income whenever the remote arrangement is for the employee's own convenience rather than a genuine employer requirement. Combined with no reciprocity agreements with any neighboring state, this leaves remote workers for Delaware employers in Pennsylvania, New Jersey, or Maryland at real risk of double taxation unless their home state grants a full credit for the Delaware tax.

Military

In Pennsylvania

Pennsylvania follows the federal Servicemembers Civil Relief Act and Military Spouses Residency Relief Act: a servicemember stationed in Pennsylvania on orders does not become a Pennsylvania domiciliary solely because of the posting, and an MSRRA-eligible spouse can generally retain the servicemember's state of legal residence for tax purposes.

In Delaware

Delaware follows the federal SCRA and MSRRA framework: a service member's home-of-record does not change solely because military orders station them in Delaware, and an accompanying spouse can generally elect the service member's domicile state under MSRRA for tax purposes.

Airline Crew

In Pennsylvania

Philadelphia International Airport is a major American Airlines hub with a substantial resident crew population; federal law (49 U.S.C. § 40116) limits state taxation of air carrier employees to their state of residence and, in narrow cases, a state where more than 50% of pay is earned, so Pennsylvania-domiciled crew are taxed on their full wages at the flat 3.07% rate regardless of how flight time is distributed across other states.

In Delaware

Delaware has no major hub airport for airline crew bases, though its proximity to Philadelphia International makes Delaware a common domicile choice for crew who want to avoid Pennsylvania's local wage taxes. The federal carve-out under 49 U.S.C. § 40116 (crew wages taxable only by the state of residence or a state earning over 50% of pay) governs regardless.

Pennsylvania to Delaware FAQ

I moved out of Pennsylvania but still own my old house and visit a lot. Am I still a Pennsylvania resident?+

You could be, even with a genuine domicile change, if you spend more than 183 days a year in Pennsylvania and the property qualifies as a permanent place of abode, meaning it can be maintained as a household indefinitely, not a dorm room or short-term corporate housing. That combination triggers Pennsylvania's statutory residency test independent of your stated domicile, so if you're keeping the house in livable condition, watch your day count closely.

I work remotely from Pennsylvania for a Delaware company. Does Delaware still tax my wages?+

Likely yes, if the remote arrangement is for your own convenience rather than something your employer requires. Delaware's convenience-of-the-employer rule treats income as Delaware-source in that situation, which means you may owe Delaware tax on those wages even though you never work physically in Delaware, and you'll want to confirm Pennsylvania grants a credit for the Delaware tax to avoid paying twice on the same income.

Does Pennsylvania tax my Social Security or pension?+

No. Social Security is fully exempt, and pension income is fully exempt once you've reached the plan's retirement age, generally treated as 59 1/2 or older for most retirees. 401(k) and IRA distributions are also fully exempt at that point, which makes Pennsylvania one of the more retiree-friendly states on income tax specifically, even though its property and inheritance taxes are less generous.

How does Delaware's 183-day residency test actually work?+

Under 30 Del. C. § 1103, you're a Delaware resident for tax purposes if you maintain a place of abode in Delaware and spend more than 183 aggregate days in the state during the tax year, regardless of where you consider yourself domiciled. This is separate from, and in addition to, being taxed as a resident because you're actually domiciled in Delaware.

What is this local Earned Income Tax I keep seeing, separate from the state tax?+

Pennsylvania layers a local Earned Income Tax on top of the flat 3.07% state rate, collected through county Tax Collection Districts under Act 32. Your municipality and school district both levy a share, at rates that vary by location, and your employer withholds it based on where you live and work. It's a real, separate bill, not a replacement for the state tax, and new residents often underbudget for it.

I own a beach house in Rehoboth and visit often but live in Maryland. Am I a Delaware resident?+

You could be, if the Rehoboth house counts as a 'place of abode' you maintain and your total time in Delaware across the year exceeds 183 days, even split across multiple visits. Delaware's statutory-residency test doesn't require the home to be your primary residence, just a place of abode you keep, combined with the day count.

Does Pennsylvania have an estate tax?+

No estate tax, but Pennsylvania does have an inheritance tax based on your relationship to the deceased: 0% for a surviving spouse, 4.5% for children and other direct descendants, 12% for siblings, and 15% for everyone else. It's due within nine months of death, with a 5% discount if paid within the first three months.

Does Delaware have an estate tax I need to plan around?+

No. Delaware repealed its estate tax effective January 1, 2018, and has no separate inheritance tax. Only the federal estate tax can apply to a Delaware domiciliary's estate above the federal exemption.

What form do I file for the year I move to or from Pennsylvania?+

Form PA-40, the same return used by full-year residents and nonresidents, marked with your part-year residency status and using the state's apportionment schedules to allocate income between the resident and nonresident portions of the year.

Does Delaware tax my Social Security or pension in retirement?+

Social Security is fully exempt from Delaware tax. Delaware also allows a pension and retirement income exclusion of up to $12,500 per person for taxpayers 60 or older, covering pensions, 401(k), and IRA withdrawals; amounts above that exclusion are taxed at Delaware's ordinary rates, up to 6.6%.

I'm a travel nurse on back-to-back Pennsylvania contracts. Could I become a Pennsylvania resident by accident?+

Yes, if you cross 183 days of Pennsylvania presence in a tax year and your housing there qualifies as a permanent place of abode, meaning an apartment lease rather than short-term corporate or hospital-provided housing, you can be classified as a statutory resident regardless of your claimed tax home in another state. Track your Pennsylvania day count across consecutive contracts, and pay attention to what kind of housing you're in.

I'm domiciled in Delaware but work abroad most of the year. Do I still owe Delaware tax?+

You may qualify for Delaware's foreign-residence exception: if within any consecutive 18-month period you're present in a foreign country at least 495 days, present in Delaware no more than 45 days, don't maintain a Delaware abode where your family stays more than 45 days, and aren't a federal government or military employee, Delaware treats you as a nonresident for that period despite your domicile.

Considering the reverse move?

Delaware to Pennsylvania

Moving the other direction is a different fact pattern, not a mirror image: exit risk and establishment mechanics both flip.

View the Delaware to Pennsylvania guide

State Guides

Full jurisdiction references

Pennsylvania to Delaware Reading

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