NC vs SC Tax Calculator
Lake Wylie sits across two states. Compare what you'd actually pay.
North Carolina
NC SideSouth Carolina
SC SideNorth Carolina saves you this annually at these numbers.
A note on the math
This calculator is a directional planning tool, not tax advice. North Carolina's flat individual income tax rate is 3.99% for tax years beginning after 2025, down from 4.25% in 2025, with further reductions possible from 2027 if state revenue triggers are met. South Carolina remains graduated, with a top marginal rate of 6% for tax year 2025 applied above roughly $17,000 of taxable income; brackets are indexed for inflation each year.
Property taxes are even more nuanced. South Carolina assesses primary residences at a 4% ratio (versus 6% for second homes), making the effective rate dramatically lower for owner-occupants. Mecklenburg and Gaston County (NC) effective rates blend to roughly 0.82% of market value. SC primary residence rates on Lake Wylie tend to land near 0.55% — but second homes and investment properties pay closer to 0.85%.
Sales tax, capital gains treatment, retirement income exemptions, and homestead caps all matter at the margins. Neither state taxes Social Security benefits, and South Carolina offers a retirement-income deduction that grows at age 65. Confirm your own situation with a licensed tax professional.
How to read the property tax math
The calculator above models the working property tax difference between addresses on the North Carolina and South Carolina sides of Lake Wylie. The math reflects current millage rates, the South Carolina 4% owner-occupied primary residence assessment, the relevant homestead exemptions, and the typical effective rate North Carolina families pay across Mecklenburg and Gaston counties.
The most material driver of the cross-border differential is South Carolina's owner-occupied assessment ratio rather than the headline millage rate. A primary residence in Fort Mill or Tega Cay typically carries a meaningfully lower effective property tax rate than a comparable home in Steele Creek or Belmont — a difference that compounds over a long hold and that often offsets South Carolina's higher headline income tax rate.
Property tax math is one piece of a broader cost-of-residency picture that includes income tax, vehicle property tax (SC), boat registration, and insurance. For a fuller picture, the cost-of-living guide under Relocate carries the working numbers most relocating families use to model the first three years on the basin.
Costs that differ by shore
- Vehicle property tax. South Carolina counties levy an annual property tax on vehicles, paid with registration; North Carolina collects vehicle property tax with annual registration renewal as well, at county rates.
- Boats. Watercraft are registered with SCDNR or the NC Wildlife Resources Commission, and counties in both states may assess personal property tax on boats and motors.
- Second homes. On the South Carolina side, a home that is not your legal residence is assessed at 6% rather than 4%, so the calculator's South Carolina figure applies only to owner-occupants who qualify.
- Municipal taxes. Homes inside Tega Cay, Fort Mill, Belmont or Charlotte city limits carry municipal levies on top of county rates; unincorporated Lake Wylie, SC does not.
- HOA dues and insurance. Neither is a tax, but both vary widely by community and belong in any honest annual comparison.
Related reading: Lake Wylie cost of living · Choosing an area: NC vs SC
A reference calculator.
Lake Wylie Living does not offer personalized analysis, briefings, or a contact form. The tool above is published as reading reference only.