Property tax in Rock Hill, SC is calculated by taking your home’s fair market value, multiplying it by an assessment ratio of 4% for an owner-occupied primary residence or 6% for anything else, and then applying the combined millage rate set by the city, York County, and the Rock Hill School District. For 2025, that combined rate runs roughly 215 mills for owner-occupied homes inside city limits and about 430 mills for non-owner-occupied properties.1York County, SC. 2025 Millage Chart Bills are mailed in the fall by York County and must be paid by January 15 to avoid penalties.2York County, SC. Frequently Asked Questions
How the Bill Is Calculated
Three York County offices divide the work. The Assessor sets your property’s fair market value. The Auditor applies the assessment ratio and millage to produce the tax. Tax Collection takes your payment.3York County Government. Frequently Asked Questions
The assessment ratio comes from South Carolina law and depends on how you use the property:4South Carolina Legislature. South Carolina Code 12-43 – County Equalization and Reassessment
- 4% for your primary residence and up to five contiguous acres, if you’ve applied for and received legal residence status from the Assessor.
- 6% for second homes, rentals, commercial property, and vacant land.
The ratio times the market value gives you the assessed value, which is the figure the tax is actually calculated on. One mill equals one dollar of tax per $1,000 of assessed value.5South Carolina Revenue and Fiscal Affairs Office. Property Tax FAQ On top of that, owner-occupied homes receive a state credit that offsets a large share of the school operating levy, which is why the effective rate on a 4% property is so much lower than on a 6% one.3York County Government. Frequently Asked Questions
A Worked Example
Take a Rock Hill home with a fair market value of $250,000, lived in as a primary residence:
- Assessed value: $250,000 × 4% = $10,000
- Tax: $10,000 × 215 mills ÷ 1,000 ≈ $2,150
If the same house were a rental at the 6% ratio:
- Assessed value: $250,000 × 6% = $15,000
- Tax: $15,000 × 430 mills ÷ 1,000 ≈ $6,450
The gap is more than three times. That is the combined effect of the lower ratio and the state school-tax credit on owner-occupied homes.
2025 Millage in Rock Hill
Your millage is the total of every taxing jurisdiction that serves your parcel: the City of Rock Hill, York County, the Rock Hill School District (York District 3), and any applicable special districts. Schools are by far the largest piece. Combined school operating, bond, and county-wide school levies totaled over 260 mills in 2025.6York County, SC. 2025 Millage Rates Rates are reset each year, so check York County’s current millage chart in the fall before you estimate a new bill.
Getting the 4% Rate: Legal Residence
Applying for legal residence status with the York County Assessor is the single most effective move a Rock Hill homeowner can make. It drops the assessment ratio from 6% to 4% and triggers the state property tax credit on school operating mills. You have to actually own the home and occupy it as your primary residence, and the application asks for a South Carolina driver’s license or ID along with proof of residency.7York County, SC. Assessor
If you just bought your home, file right away. Approval generally needs to be in place before that year’s bills are generated to affect the current year’s rate. Once you’re approved, you don’t need to reapply annually unless your ownership or residency changes. Convert the home to a rental, or move, and you lose the 4% rate on the old property and need to file fresh on the new one.
Other Ways to Lower Your Bill
Homestead Exemption for Age 65+, Disabled, or Blind
South Carolina exempts the first $50,000 of fair market value from all county, municipal, school, and special assessment property taxes if you meet one of these conditions:8South Carolina Legislature. South Carolina Code 12-37-250 – Homestead Exemption for Taxpayers Sixty-Five and Over or Those Totally and Permanently Disabled or Legally Blind
- Age 65 or older by December 31 of the year before you claim the exemption
- Totally and permanently disabled, as classified by a state or federal agency
- Legally blind under South Carolina law
You also have to have been a South Carolina resident for at least a year and hold fee simple title or a life estate. On a 4% property, the $50,000 exemption pulls $2,000 off the assessed value, which comes out to roughly $430 in annual savings at the 2025 owner-occupied rate. Apply through the York County Assessor.9South Carolina Department of Revenue. Exempt Property
Active-Duty Military
If you’re active duty and claim South Carolina as your legal domicile but are stationed elsewhere, keep your legal residence application current so your Rock Hill home holds the 4% ratio. If you’re stationed in South Carolina but your legal domicile is another state, the Servicemembers Civil Relief Act prevents South Carolina from taxing your personal property.10Office of the Law Revision Counsel. 50 USC 4001 – Residence for Tax Purposes
When and How to Pay
York County mails tax notices in the fall. Bills are payable starting September 30, and the deadline to pay without penalty is January 15 of the following year.2York County, SC. Frequently Asked Questions Payments go to York County Tax Collection, not the Assessor. You have several options:11York County, SC. Tax Collection
- Online through the county’s payment portal. E-checks are free; cards carry a convenience fee.
- By mail, using the envelope that came with your bill. The postmark date determines timeliness.
- In person at the Government Center, 6 South Congress Street in York, or the York County Complex, 1070 Heckle Boulevard in Rock Hill. Cash, check, and cards accepted.
- By phone at (866) 541-4097. E-check is free; card payments carry a convenience fee.
- Drop box at either office, check only. A receipt is mailed once the payment posts.
What Happens If You Pay Late
Miss January 15 and the penalties come in three waves under state law:12South Carolina Legislature. South Carolina Code 12-45-180 – Penalties on Delinquent Taxes
- After January 15: 3% penalty added to the unpaid balance.
- After February 1: an additional 7% (10% total).
- After March 16: an additional 5% (15% total).
Property that stays delinquent past these dates can eventually be sold at a tax sale. Even if you plan to appeal your value, pay on time. An appeal does not pause the deadline, and a successful appeal gets you a refund.
Appealing Your Assessment
If you think the Assessor’s market value is too high, you can challenge it. In a reassessment year where your value went up by $1,000 or more, you have 90 days from the date on the notice to file a written objection with the Assessor.13York County Government. Real Property Appeal Form Miss that window and you lose your appeal rights for the year.14South Carolina Legislature. South Carolina Code 12-60-2510 – Property Tax Assessment Notice In non-reassessment years, you can appeal at any time.
Your written objection can challenge the fair market value, the assessment ratio, or both. Attach evidence: recent comparable sales, an independent appraisal, or documentation of condition issues the Assessor wouldn’t have seen. The office reviews the file and may schedule a conference. A review can bring your value up or leave it unchanged, not only reduce it.
If you disagree with the Assessor’s response, you have 30 days to file a written notice of intent to appeal to the York County Board of Assessment and Appeals. The Board holds a hearing and mails a written decision within 15 days.15York County. Board of Assessment and Appeals
Reassessment and the 15% Cap
South Carolina requires every county to reassess all real property at least once every five years, with a possible one-year extension by ordinance.4South Carolina Legislature. South Carolina Code 12-43 – County Equalization and Reassessment York County completed its most recent reassessment in 2025 and mailed notices in September. State law also caps the taxable value increase on an owner-occupied home at 15% within a five-year reassessment period. Improvements and additions sit outside the cap and come in at current market value. Second homes, rentals, and commercial property have no such cap and can see larger jumps.