Your state income tax bill goes up. Florida charges zero state income tax. South Carolina charges a graduated state income tax with a 6.2% top rate kicking in above USD 17,330 (the top bracket starts at a low income threshold relative to peer states). For a household earning USD 200,000, that's roughly USD 12,000 in annual SC income tax. For a USD 500K household it scales to ~USD 30,000. You'll also lose Florida's homestead exemption and Save Our Homes 3% annual cap on assessed-value increases — though SC property tax rates are among the lowest in the Southeast (~0.55% effective rate on owner-occupied homes), which partially offsets the income-tax differential. SC has no estate tax — same as Florida.

Charleston is the coastal-historic peer to St. Augustine — Boeing 787 + Volvo + Mercedes-Benz Vans aerospace-manufacturing corridor, MUSC healthcare anchor, Charleston AFB military-aerospace footprint (deep NAS Jax overlap), Port of Charleston logistics. Best for households wanting walkable historic-coastal lifestyle. Greenville is the Upstate Blue Ridge foothills pick — BMW, Michelin, Lockheed Martin, GE Power, walkable downtown, dramatic cost-of-living gap (15–25% below Northeast Florida). Best for manufacturing professionals and households wanting lower humidity + four-season climate. Myrtle Beach is the retirement-coast pick — Grand Strand golf and beaches, lower cost of living, but smaller job market. Hilton Head is the resort-island pick — affluent retirement-relocation with golf, beaches, and gated-community living.

Charleston housing runs broadly comparable to Jacksonville in West Ashley and North Charleston but Mount Pleasant, Daniel Island, and the historic peninsula carry premium pricing comparable to Ponte Vedra Beach. A PVB budget translates well to Mount Pleasant's Old Village or I'On. Greenville housing runs 15–25% below Northeast Florida — a PVB budget buys substantially more square footage in Augusta Road or one of the Cliffs Communities. Myrtle Beach housing runs meaningfully below Jacksonville for retirement-coast properties. Hilton Head housing runs premium for gated-community resort living.

Charleston shares broadly the same climate profile as Jacksonville — both sit on the South Atlantic coast and both hit low-90s June–September with mid-70s dew points and daily afternoon thunderstorms. Charleston averages marginally cooler winters than Jacksonville. Both metros sit in the Atlantic hurricane corridor — Charleston has historically taken multiple direct hits (Hurricane Hugo 1989). Greenville sits at 1,000 feet of elevation in the Blue Ridge Mountain foothills and runs ~10 degrees cooler than Jacksonville year-round with occasional snow December–February. Lower humidity. No hurricane risk at Greenville's inland location.

November through early April is the best move window for the Jacksonville-end loadout. For Charleston deliveries, both metros share Atlantic hurricane season — build a 3–5 day weather buffer for August–October moves. For Greenville deliveries, March through May and September through November are the ideal windows (avoiding summer heat on the Jacksonville end and brief winter ice events on the Greenville end). The single best combined window is March through April.

Downtown Charleston's historic peninsula (South of Broad, Harleston Village, Ansonborough, French Quarter — the area south of Calhoun Street) has narrow brick-paved streets, low-clearance live-oak canopies, and historic-preservation rules that produce real access constraints for 26-foot trucks. Most historic-district deliveries require either a shuttle from a smaller box truck or a long-carry from a permitted curbside loading zone. The City of Charleston's Board of Architectural Review enforces strict rules on historic-district truck and equipment access — confirm permitting in advance for historic-district deliveries.

Charleston-bound: Mount Pleasant (Old Village, I'On, Park West), Daniel Island, Sullivan's Island, Isle of Palms, South of Broad, Ansonborough, West Ashley, Johns Island, Summerville. Greenville-bound: Augusta Road, North Main, Cleveland Park, Five Forks / Simpsonville, Greer, Travelers Rest, Mauldin, the Cliffs Communities. Ponte Vedra Beach maps to Mount Pleasant (Charleston), Augusta Road or one of the Cliffs Communities (Greenville). Nocatee maps to Daniel Island (Charleston), Five Forks / Simpsonville (Greenville). St. Augustine maps to South of Broad / Ansonborough (Charleston), North Main / Cleveland Park (Greenville).