Charleston Property Tax Assessment Appeal: How to Fight a Bad Number

Your Charleston County property tax notice arrived and the assessed value is higher than what a real buyer would pay for your home today. That happens more than people realize, and the good news is the appeal process is fair, straightforward, and often successful.

Deadline first, everything else second. In Charleston County you have 90 days from the date of the reassessment notice to file an appeal. Berkeley and Dorchester Counties have their own timelines. Miss the window and you wait a full year.

What counts as evidence. Recent comparable sales within a half mile radius, adjusted for square footage and condition. Photos of any material defects the assessor did not see (foundation issues, roof damage, deferred maintenance). A recent appraisal from a purchase or refinance. Rental income data if applicable.

What does not count. “My neighbor’s house is worth more and got assessed lower.” Tax fairness among neighbors is not a valid appeal ground on its own.

How to actually run the appeal. Charleston County appeals go through the Assessor’s Office first. You submit a written objection with your evidence. If the informal appeal is denied, you can escalate to the Board of Assessment Appeals. Most cases resolve at the informal stage if the evidence is real.

When it is worth it. If your assessment is off by less than 5 percent, the fight is rarely worth the hours. If it is off by 10 percent or more, the tax savings usually pay you back many times over on a residential property. On a $700,000 home, a 10 percent reduction saves about $350 per year at the primary residence rate. On a $2 million home, it saves closer to $1,000 per year.

A note for Charleston relocators. If you bought in 2025 or 2026 at market price, use your closing disclosure as your main piece of evidence. The county cannot argue with a real arms-length transaction.

If you want a second opinion on whether your assessment looks off, send me your parcel ID and I will pull recent comps for you. No cost, no obligation. (843) 530-7001 or michael.teibert@carolinaone.com.

Michael Teibert
Carolina One Real Estate