Greenville County SC Property Tax: Deadlines & Appeals (2026)

Greenville County, South Carolina property owners who disagree with their assessed value must file a written objection with the County Assessor within 90 days of the mailing date shown on their Notice of Property Tax Assessment. If no notice was mailed for the current tax year, the deadline is generally the first penalty date on the tax bill (mid-January). If the Assessor's office does not resolve the objection informally, the case can proceed to a hearing before the Greenville County Board of Assessment Appeals, and from there to the South Carolina Administrative Law Court. Written objections and appeal forms go to Greenville County Real Property Services at 301 University Ridge, Suite S-1000, Greenville, SC 29601.

How assessments work in Greenville County

South Carolina counties reassess property values on a five-year cycle under state law (S.C. Code §12-43-217). Greenville County completed its most recent countywide reassessment in 2025 (the prior cycle was implemented in 2021, after a delay from 2020), with the next scheduled reassessment in 2030. Between reassessment years, state law caps how much a property's assessed value can increase — a 15% cap set out in S.C. Code §12-37-3140. A sale or other "assessable transfer of interest" can trigger a new valuation outside the normal cycle, so if you recently bought your home, confirm with the Assessor's office how that affects your specific value.

Owner-occupied primary residences are taxed on 4% of fair market value (the "legal residence" assessment ratio); most other real property, including second homes, rental property, and commercial property, is taxed at 6%. If your home is your primary residence and you're not currently getting the 4% rate, that's worth checking before you even get to an appeal — it can matter more than a valuation dispute.

Whether you should appeal

An appeal makes sense when you believe the Assessor's fair market value estimate is higher than what your property would actually sell for, or when the property record itself is wrong — incorrect square footage, bedroom/bathroom count, lot size, condition, or a feature (like a pool or finished basement) that doesn't exist. Useful evidence includes a recent independent appraisal, closing documents from a recent purchase, photos documenting condition issues, and sales of comparable homes in your immediate area near your valuation date. Under Greenville County's process, the Assessor's valuation "is normally presumed to be correct, unless proved otherwise" once a case reaches the Board, so come with documentation rather than just an opinion that the number feels too high.

Step-by-step how to file

1. Confirm your deadline. Check the mailing date on your Notice of Property Tax Assessment. You have 90 days from that date to file a written objection with the Assessor. Miss it, and you forfeit your right to appeal that year's value.
2. File a written objection with the Assessor. Use the appropriate online appeal form (Residential Property, Vacant Land, Mobile Home, or one of the Commercial appeal forms) available through Greenville County Real Property Services, or submit written objection by mail to 301 University Ridge, Suite S-1000, Greenville, SC 29601.
3. Attend a conference if the Assessor disagrees. If the Assessor's office doesn't agree with your objection, it must schedule a conference with you within 30 days.
4. File a written protest if still unresolved. If the conference doesn't resolve things, you have 30 days from the conference to file a written protest. The Assessor then has 30 days to respond in writing.
5. Appeal to the Board of Assessment Appeals. If you disagree with the Assessor's written response, you can appeal to the Greenville County Board of Assessment Appeals within 30 days of that response. You must give written notice of intent to appeal and exchange evidence, witnesses, and documents with the Assessor's office at least 15 days before the hearing.
6. Appeal to the SC Administrative Law Court if needed. If you disagree with the Board's written decision, you can appeal further to the South Carolina Administrative Law Court within 30 days of the Board's decision.

What happens after you file

At the Board of Assessment Appeals hearing, the proceeding is open to the public: the Assessor's office explains the basis for its valuation, and you present your evidence and counter-argument. Because the Assessor's value carries a presumption of correctness, the burden is on you to show why it's wrong. The Board decides by majority vote (a tie vote upholds the Assessor's value), and its written decision is mailed to you within 15 days of the hearing. One timing detail worth knowing: if an appeal extends past December 31 of the tax year, you're required to pay a portion of your tax bill equal to 80% of the protested assessment while the appeal continues, so an appeal doesn't let you simply withhold payment.

Exemptions and local tips

South Carolina's homestead exemption exempts the first $50,000 of fair market value of your legal residence from county, municipal, school, and special assessment property taxes if you meet one of these conditions: you've been a South Carolina resident for at least one year and turned 65 on or before December 31 of the tax year; you've been classified as totally and permanently disabled by a state or federal agency; or you are legally blind. Written application must be made before July 16 of the tax year you're claiming it for. In Greenville County, apply through the Homestead Exemption Application (available from Real Property Services / the County Auditor's Office).

South Carolina also offers a property tax exemption for certain disabled veterans: veterans with a total and permanent service-connected disability rating can qualify for a full exemption on their dwelling home and up to five acres of surrounding land, provided they hold 4% legal residence status and live in the home. Unremarried surviving spouses who reside in and own the property may also qualify. Applications go through the SC Department of Revenue — either online via MyDORWAY or by mailing Form PT-401I; the Department notes typical processing of 10-12 weeks.

If you haven't already, confirm you're receiving the 4% legal residence rate on your primary home (versus the default 6% rate), since this is a separate, common source of overpayment that has nothing to do with your assessed value.

When are property taxes due?

Greenville County real property tax bills are paid one year in arrears, with notices generally issued on or after October 1. Payment is due by January 15 with no penalty. Payments made after January 15 incur a 3% penalty, after February 1 a 10% penalty, and after March 16 a 15% penalty, with additional delinquent-tax deadlines later in the year for accounts that remain unpaid. This payment deadline is separate from your appeal deadline — filing an appeal does not extend your payment due date.

Contacts

• Greenville County Assessor's Office (Real Property Services): 301 University Ridge, Suite S-1000, Greenville, SC 29601 · 864.467.7300 · RealProperty@greenvillecounty.org
• Greenville County Board of Assessment Appeals: Hearings are administered through Real Property Services; contact the Assessor's Office above to confirm hearing scheduling and requirements.
• Greenville County Auditor's Office (homestead exemption applications): 301 University Ridge, Suite S-2000, Greenville, SC 29601 · 864.467.7040
• Greenville County Tax Collector (tax bill payment): 301 University Ridge, Suite S-1100, Greenville, SC 29601 · 864.467.7050 · TaxCollector@greenvillecounty.org
• Parcel/GIS lookup: Greenville County Maps, gcgis.org