Who we help in Fort Mill, Tega Cay, Indian Land and Rock Hill
Fort Mill has grown fast, and a lot of that growth is people who work in Charlotte and chose to live in South Carolina. It is also home to a growing number of small businesses that serve both sides of the line.
Our Fort Mill and Tega Cay clients tend to be:
- Households with a Charlotte paycheck and a South Carolina address
- Business owners registered in SC with customers, jobs or employees in NC
- Real estate investors with rentals in one or both states
- Newcomers filing their first part-year returns after moving from another state
Tega Cay and Rock Hill are in York County like Fort Mill. Indian Land is in Lancaster County, so its property tax office and some local rules are different. The state tax rules are the same for all of them.
We are based in Waxhaw, a short drive east across the state line, and everything we do is virtual.
Tax preparation vs tax planning
Tax preparation looks back. We take what already happened in the year and file it correctly in both states. Tax planning looks ahead. We look at your numbers before the year ends and change what can still be changed.
Timing is the whole point. Most moves that lower a 2026 bill have to happen by December 31, 2026: an S corp owner's payroll, business purchases, and when income and expenses land. Once the year closes, a preparer can only report what happened.
Planning is where the bigger results come from. One roofing contractor client keeps $14K more every year after we moved his LLC to an S corp. A welder client was missing $8,500 in write-offs every year until we found them. Every situation is different, so we never promise a number before we look at yours.
See tax preparation for returns and starting prices, and tax planning for year round planning. Rental owners should also read about cost segregation.
How we help each kind of Fort Mill client
Business owners
Outsourced accounting with your returns included, sales tax and payroll that follow the right state, and a yearly look at South Carolina's 3% rate on active trade or business income. Businesses that work in Charlotte too often need a North Carolina filing as well. See outsourced accounting for business owners.
Contractors and trades
Crews that work jobs on both sides of the line need business licenses where they work, the right state on payroll, and job costing that shows which jobs make money. See accounting for contractors.
Real estate investors
A Fort Mill rental is taxed at South Carolina's 6% assessment ratio, not the 4% owner occupied ratio, so the property tax bill is part of the return on the deal. Rentals in North Carolina mean a nonresident NC return. See real estate investor tax strategy and our note on 1031 exchanges.
South Carolina specifics that come up
Business licenses
Unlike North Carolina, South Carolina cities and counties require business licenses. Businesses inside Fort Mill town limits license with the Town of Fort Mill. Tega Cay, Rock Hill and unincorporated York County each have their own rules. Under South Carolina's standardized business license system, licenses run on the same yearly cycle statewide and renewals are due by April 30.
How South Carolina taxes business income
South Carolina offers two elections for owners of pass-through businesses. Both use a 3% rate on active trade or business income under S.C. Code Section 12-6-545.
- Owner election. An owner can elect each year, on the individual return, to have active trade or business income taxed at 3% instead of the regular rates. Whether it helps depends on your other income.
- Entity election (PTET). A partnership or S corp whose owners all qualify can elect each year to pay the 3% tax at the entity level. The owners then leave that income off their South Carolina returns. The election is due by the entity's return due date, including extensions.
Which one fits, if either, depends on the owners and the federal picture, so we run it as part of tax planning.
Annual filings
South Carolina LLCs taxed as partnerships or disregarded entities do not file an annual report with the state. Corporations, including S corps, file an annual report with their income tax return.
Property tax
South Carolina assesses an owner occupied legal residence at 4% of fair market value, but only if you apply. Under S.C. Code Section 12-43-220, the application is due before the first penalty date for paying that year's taxes. Rentals, second homes and homes where no one applied are assessed at 6%, per York County's guide to estimating taxes. New Fort Mill homeowners should apply with the York County Assessor soon after closing.
South Carolina and North Carolina side by side
Fort Mill households often deal with both states in the same year. The 2026 numbers below come from the two state revenue departments. Rates change by law, so we confirm them again when we prepare your return.
| Item | South Carolina | North Carolina |
|---|---|---|
| Individual income tax, 2026 | 1.99% on taxable income under $30,000, 5.21% at $30,000 and above (top rate was 6% for 2025) | Flat 3.99% (4.25% for 2025) |
| Pass-through business income | Optional 3% rate on active trade or business income, plus an optional 3% entity level election | Optional entity level election at the individual rate |
| Local business license | Required by most cities and counties, renewed by April 30 | Generally none since 2015 |
| Home property tax | 4% assessment ratio on your legal residence if you apply, 6% otherwise | No general owner occupied ratio; county and town rates apply to the full assessed value |
The 2026 South Carolina changes also replaced the federal standard deduction with a new South Carolina Income Adjusted Deduction: $15,000 for single or married filing separately, $22,500 for head of household and $30,000 for married filing jointly. Those amounts can be reduced at higher incomes. A 2026 South Carolina return will not look like your 2025 one, and it is due April 15, 2027.
Figures as of November 1, 2026. Sources: SCDOR on H.4216 (2026 rates and deduction), SCDOR individual income tax (2025 rate), NCDOR tax rate schedules, S.C. Code 12-6-545, S.C. Code 12-43-220.
Working in Charlotte, living in Fort Mill
If you work in North Carolina and live in South Carolina, you file two returns every year: a North Carolina nonresident return for the wages earned in NC, and a South Carolina resident return reporting everything, with a credit for the NC tax.
There is no agreement between the two states that lets you skip the North Carolina return. North Carolina taxes nonresidents on income from an occupation carried on in North Carolina, reported on Form D-400 with Schedule PN. South Carolina gives its residents a credit for that tax on Schedule SC1040TC.
The credit is the smaller of two numbers: the South Carolina tax on the share of income North Carolina taxed, or the net tax due to North Carolina. The 2026 SC1040TC worksheet says not to use W-2 withholding for it. That is why the North Carolina return has to be right first. North Carolina's flat rate is 3.99% for 2026, down from 4.25% for 2025, per the NCDOR rate schedules.
The details that trip people up are withholding for the wrong state, days worked from home in SC, and a spouse who works in a different state from you. We walk through all of it on the NC and SC dual-state taxes page.
What we do for Fort Mill clients
- Tax preparation: SC resident, NC nonresident and part-year returns
- Tax planning, including the SC business income election and entity level tax
- Outsourced accounting for SC businesses
- LLC formation and S corp setup in either state
- Real estate tax strategy for rentals on either side of the line
- Cost segregation to speed up depreciation on rental property
We also work with clients in Tega Cay, Rock Hill, Indian Land and Lancaster. If your business is on the North Carolina side, see our Charlotte CPA page, or see all service areas.
From our insights
Plain English articles on the questions our clients ask most. More on the insights page.
Questions we get asked
How do I choose a tax preparer in Fort Mill?
Start with credentials. Anyone paid to prepare returns needs an IRS Preparer Tax Identification Number, but a CPA is also licensed by a state board. You can check a preparer's credentials in the IRS directory of tax return preparers. Then ask three things: do they file both South Carolina and North Carolina returns, do they plan ahead or only prepare, and what will it cost before you send anything.
How much does tax preparation cost in Fort Mill?
Our personal returns start at $400 for a single filer and $600 for married filing jointly, with W-2 income only and one state included. Business returns start at $1,500 for an S corp and $1,800 for a partnership. Each additional state return is $100, so a Fort Mill household that also files in North Carolina adds $100. We confirm your exact price before any work begins.
Do I file in NC or SC if I live in Fort Mill and work in Charlotte?
Both. You file a North Carolina nonresident return, Form D-400 with Schedule PN, for the wages you earned in North Carolina. You also file a South Carolina resident return that reports all your income. South Carolina then gives you a credit for the North Carolina tax on the same income, so that income is not taxed twice. The North Carolina return should be done first, because the credit is based on it.
Do North Carolina and South Carolina have tax reciprocity?
Not in the way most people hope. Living in South Carolina does not let you skip the North Carolina return on wages earned there. Double tax is avoided through the South Carolina credit for taxes paid to another state. That credit is the smaller of the South Carolina tax on that income or the net tax due to North Carolina. The withholding on your W-2 does not set the credit.
Is a tax consultant different from a tax preparer?
A tax preparer files your return after the year is over. A tax consultant, or tax planner, looks at your numbers before December 31 and suggests changes while they can still lower the bill. We do both. For business owners and investors, planning is usually where the bigger savings come from, but results depend on your situation.
What are South Carolina's income tax rates for 2026?
As of November 1, 2026, South Carolina taxes income under $30,000 at 1.99% and income of $30,000 and above at 5.21%, starting with the 2026 tax year. The top rate was 6% for 2025. A new South Carolina deduction replaces the federal standard deduction. Returns for 2026 are due April 15, 2027.
Do you have an office in Fort Mill?
No. Our office is in Waxhaw, NC, a short drive from Fort Mill across the state line. The whole process is virtual, over Google Meet, secure upload and electronic signature, so you never need to make the trip. Fort Mill and Tega Cay clients work with us exactly the way our Waxhaw clients do.
Do you work with clients in Tega Cay, Rock Hill and Indian Land?
Yes. We work with clients across Fort Mill, Tega Cay, Rock Hill, Indian Land and Lancaster, plus Charlotte and Union County on the North Carolina side. Everything happens over Google Meet, a secure portal and electronic signature, so where you live on either side of the line does not change how we work.