Residency Migration Reference
Moving from Pennsylvania to South Carolina: Residency, Taxes, and What to Prove
Pennsylvania's 3.07% top income tax rate becomes 6% in South Carolina. This move trades a lighter tax environment for a heavier one, so timing income around the transition year matters.
Residency Tests Side by Side
Pennsylvania's statutory residency test uses a 183-day threshold. South Carolina does not use a simple day-count threshold; it applies a facts-and-circumstances test instead.
| Factor | Pennsylvania | South Carolina |
|---|---|---|
| Statutory Residency Test | A 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. | South Carolina has no day-count statutory residency test. The Department of Revenue's own guidance states plainly: 'Unlike some states that tax a person as a resident who lives in the state for a specific period of time, such as 183 days, South Carolina does not have a minimum time that must be spent in the state to be presumed a South Carolina resident for individual income tax purposes.' Residency turns entirely on domicile. |
| Domicile Test | Pennsylvania 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. | S.C. Code § 12-6-30(2) defines a resident individual as 'an individual domiciled in this State.' Domicile itself is undefined in the tax code and comes from case law: South Carolina courts (Phillips v. South Carolina Tax Commission, 195 S.C. 472, 12 S.E.2d 13 (1940); Gasque v. Gasque, 246 S.C. 423, 143 S.E.2d 811 (1965); Ravenel v. Dekle, 265 S.C. 364, 218 S.E.2d 521 (1974)) define domicile as the place a person has a true, fixed, and permanent home and principal establishment, to which they intend to return whenever absent. Intent is the most important element, evaluated against conduct: the Department's published Domicile Guide (June 2021) lists non-exhaustive factors grouped as property (deeds, real property, motor vehicles, the 4% assessment ratio), employment and financial (where wages are earned, where taxes are paid, bank account and bill addresses), licenses and registrations (voter registration, driver's license, vehicle registration, professional licenses), family (where spouse and dependents live), and affiliations (civic ties, place of worship, professional service providers). No single factor is dispositive. |
| Day Count Threshold | 183 days | No fixed threshold |
| Any Part of a Day Rule | Not 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 applicable; South Carolina has no statutory day-count test. A nonresident who works in South Carolina or spends winter months there does not automatically become a South Carolina resident, and conversely a domiciled South Carolina resident who is physically absent for months or years remains a resident if they intend to return. |
| Presumptions | None published | Military servicemembers who entered service while domiciled in South Carolina are presumed to remain South Carolina residents for tax purposes unless they affirmatively establish legal residence elsewhere and abandon South Carolina domicile (S.C. Regulation 117-640.2). No general civilian day-count presumption exists. |
| Safe Harbors | Non-permanent abode carve-out | None published |
Leaving Pennsylvania
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
Common Exit Mistakes
Establishing South Carolina Residency
| Action | Agency | Deadline |
|---|---|---|
| Get a South Carolina driver license | South Carolina Department of Motor Vehicles (SCDMV) | within 45 days of establishing residency |
| Title and register vehicles | SCDMV | within 45 days of moving to South Carolina |
| Register to vote | South Carolina Election Commission | at least 30 days before an election to vote in it |
| Apply for the 4% legal-residence property tax assessment ratio | County Assessor | by the county's application deadline (varies; commonly before the first penalty date) |
| Apply for the Homestead Exemption if 65+, disabled, or legally blind | County Auditor's Office | after residing in South Carolina as a permanent home for a full prior calendar year |
Declaration of Domicile
South Carolina has no formal sworn Declaration of Domicile filing like Florida's. Domicile is proven through the totality of conduct and documents described in the Department's own Domicile Guide: property records, employment and financial records, licenses and registrations, family location, and community affiliations, with intent as the controlling factor.
Homestead
Two distinct benefits get conflated under 'homestead' in South Carolina. First, the 4% legal-residence assessment ratio (S.C. Code § 12-43-220(c)) is available to any owner-occupant whose South Carolina home is their domicile, cutting the taxable assessment ratio from the standard 6% to 4%, a substantial and immediate property tax reduction that also functions as strong documentary evidence of domicile in an audit, as shown in Brown and Hodson. Second, the separate Homestead Exemption exempts the first $50,000 of fair market value from tax entirely, but only for owners who are 65+, totally and permanently disabled, or legally blind, and only after a full prior calendar year of South Carolina residency; a qualifying surviving spouse can continue the exemption if they take title within nine months of the qualifying spouse's death and remain unmarried.
Voter Registration
Register online, by mail, or in person through the South Carolina Election Commission; the deadline to register for any given election is 30 days before Election Day (https://scvotes.gov/voters/register-to-vote/).
Vehicle Registration Deadline
45 days
New Resident Tax Traps
Because South Carolina has no day-count test, new residents sometimes wrongly assume residency is delayed until they've physically spent significant time in-state; in fact domicile, and the resulting South Carolina tax obligation on worldwide personal service income, can attach immediately upon actually moving with the intent to stay, even before DMV or voter paperwork catches up. The reverse trap: claiming the 4% legal-residence assessment ratio on a South Carolina property while a family member's tax return or another state's homestead filing shows the true domicile is elsewhere invites the same audit pattern seen in Brown and Hodson.
What Changes on Tax
Pennsylvania Top Rate
3.07%
South Carolina Top Rate
6%
Moving from Pennsylvania to South Carolina raises the top marginal income tax rate from about 3.07% to about 6%, an increase of roughly 2.93 percentage points.
Withholding Reciprocity
Pennsylvania and South Carolina 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 South Carolina 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%.
South Carolina
Capital gains: Taxed as South Carolina income; a 44% deduction is generally available against net long-term capital gains for state purposes, which is the state's primary capital-gains relief mechanism rather than a separate lower rate.
Estate or inheritance tax: None. South Carolina has no estate tax and no inheritance tax.
Property tax: South Carolina's owner-occupied primary residence qualifies for the 4% legal-residence assessment ratio under S.C. Code § 12-43-220(c) instead of the standard 6% ratio, a major property tax reduction tied directly to domicile; a separate Homestead Exemption for owners 65+, totally and permanently disabled, or legally blind exempts the first $50,000 of fair market value from tax entirely, but only after residing in South Carolina as a permanent home for a full prior calendar year.
Sales tax: 6% state rate, with local option taxes pushing the average combined state-and-local rate to about 7.49%.
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 South Carolina
South Carolina's large hospital systems (MUSC in Charleston, Prisma Health, McLeod) make it a significant travel-nurse assignment market. Because South Carolina has no day-count residency trigger, a nurse working consecutive South Carolina contracts is not automatically pulled into residency the way they would be in a 183-day state; the exposure runs through South Carolina's domicile test instead, meaning a nurse who buys a home, registers to vote, or otherwise shows intent to make South Carolina permanent can become domiciled regardless of the nominal 'tax home' claimed elsewhere.
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 South Carolina
Charleston and Greenville host minor-league and college sports rather than a major-league franchise, so South Carolina's jock-tax exposure is almost entirely on the visiting-player side: nonresident athletes on teams playing in South Carolina owe apportioned South Carolina tax on the personal-service income allocated to South Carolina duty days, following the state's general rule taxing nonresidents on South Carolina-source personal service income.
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 South Carolina
Because South Carolina runs no day-count test, a snowbird can spend an extended winter in South Carolina without becoming a resident, as long as they do not develop the intent to make South Carolina their permanent home; the Department's own guidance states a nonresident spending winter months in South Carolina does not automatically become a South Carolina resident. The risk flips for someone who buys a South Carolina home, joins clubs, opens local bank accounts, and gradually shifts their center of life there, as in Brown, where the taxpayer was found domiciled in South Carolina despite lacking a South Carolina driver's license or vehicle registration that year.
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 South Carolina
South Carolina has no convenience-of-the-employer rule. A remote worker physically performing work from South Carolina owes South Carolina tax on that personal service income (since South Carolina taxes residents' personal service income regardless of source and nonresidents' South Carolina-source personal service income), and the credit for taxes paid to other states (Code § 12-6-3400) is the mechanism for avoiding double taxation if the employer's home state also asserts a claim.
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 South Carolina
South Carolina follows the federal Servicemembers Civil Relief Act, the Military Spouses Residency Relief Act, and the Veterans Benefits and Transition Act: a servicemember does not lose or acquire South Carolina domicile solely by being present or absent under military orders, and a spouse may elect to use the servicemember's state of residence for tax purposes regardless of when the marriage occurred. Under S.C. Regulation 117-640.2, a servicemember who entered service while domiciled in South Carolina is presumed to remain a South Carolina resident for tax purposes unless they affirmatively establish a new domicile and abandon South Carolina, even if the new state (like Texas or Florida) has no income tax.
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 South Carolina
Charlotte Douglas (just across the North Carolina line) and smaller in-state airports mean some airline crew live in South Carolina while based elsewhere. Federal law (49 U.S.C. § 40116) limits state taxation of air carrier employees to their state of residence and, narrowly, a state where more than 50% of pay is earned; crew domiciled in South Carolina are taxed on personal service income under the state's standard resident rules.
Tools for This Move
Pennsylvania to South Carolina 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.
Does South Carolina have a 183-day rule like New York or California?+
No. The South Carolina Department of Revenue states directly that, unlike states with a day-count presumption such as 183 days, South Carolina has no minimum time that must be spent in the state to be presumed a resident. Residency depends entirely on domicile: where your true, fixed, permanent home is and where you intend to return when away.
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.
I bought a house in South Carolina but haven't gotten a South Carolina driver's license or registered to vote yet. Am I still a resident?+
Possibly yes. In F. Abbott Brown v. Charleston County Assessor, the taxpayer was found domiciled in South Carolina for a full year despite having none of those three documents, because the court found his conduct, joining a local club, banking locally, moving into the home with intent to stay, demonstrated domicile regardless of the missing paperwork. The Department's own guidance says intent and conduct control, not any single document.
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.
What's the difference between South Carolina's homestead exemption and the 4% assessment ratio?+
They're two different benefits. The 4% legal-residence assessment ratio applies to any owner-occupant whose South Carolina home is their domicile, cutting the property tax assessment ratio from 6% to 4%, and is available immediately. The Homestead Exemption is narrower: it exempts the first $50,000 of fair market value entirely, but only for owners who are 65 or older, totally and permanently disabled, or legally blind, and only after a full prior calendar year of South Carolina residency.
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.
I moved to Wyoming for a few years and never got a Wyoming driver's license. Did I stay a South Carolina resident?+
Not necessarily. In Floyd v. South Carolina Department of Revenue, a taxpayer who moved to Wyoming without ever obtaining a Wyoming license or registering to vote there was still found to have abandoned South Carolina domicile, because the court credited her testimony that she genuinely intended to build a life in Wyoming. Missing documents hurt your case but are not automatically fatal if your actual conduct and credible intent point elsewhere.
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 Social Security get taxed once I retire in South Carolina?+
No. South Carolina fully exempts Social Security benefits, and on top of that offers a $10,000 per-person retirement income deduction at age 65 and older ($3,000 under 65) that applies to pensions, 401(k)s, and IRA distributions.
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.
How does South Carolina tax my income if I still work remotely for my old employer after moving here?+
South Carolina taxes residents on all personal service income (wages and self-employment earnings from labor) regardless of where it's earned, so your remote wages are taxable in South Carolina once you're domiciled here. If your former state also claims a right to tax the same income, South Carolina's credit for taxes paid to another state (Code § 12-6-3400) prevents double taxation.
Considering the reverse move?
South Carolina to Pennsylvania
Moving the other direction is a different fact pattern, not a mirror image: exit risk and establishment mechanics both flip.
View the South Carolina to Pennsylvania guideAlso Consider, Leaving Pennsylvania
Pennsylvania to South Carolina Reading
Reviewed Against 16 Primary Sources
ResidencyIQ organizes public residency research into a reviewable reference. It does not provide legal or tax advice. Consult a qualified professional before making a residency decision.
Start your record
Build your Pennsylvania to South Carolina mobility map.
Start with a free map, document your center of life, then upgrade when you need evidence, advisor collaboration, and audit-ready reporting.
Create Free Mobility Map