AppealDesk

Charleston County Property Tax Appeal, South Carolina

Travis BunnTravis Bunn·Updated July 24, 2026

Charleston County is South Carolina's second-most populous county with approximately 436,200 residents as of 2025, and the county seat is the City of Charleston. Major population centers include Charleston, North Charleston, Mount Pleasant, Summerville, and Goose Creek. Property tax appeals are particularly important in Charleston County given the area's rapidly rising home values and strong real estate market. Charleston County's median home value of approximately $330,300 to $415,000 significantly exceeds the state median of $236,700, though the effective tax rate of 0.41% to 0.53% remains well below both the South Carolina state median of 0.66% and the national median of 1.02%. The median annual property tax bill ranges from $1,763 to $2,031, which is below the national median of $2,400 despite higher property values.

Notable cities: Charleston, North Charleston, Mount Pleasant, Summerville, Goose Creek

Median Home

$330,300

Tax Rate

0.50%

Annual Tax

$1,763

Population

436,200

On the typical Charleston County home, valued near $330,300 at the county’s effective tax rate of 0.50%, an over-assessment of even 10% means you are overpaying year after year until you appeal it. Here is how to find out if yours qualifies.

2026 Appeal Deadline: 90 days from the date the assessment notice is mailed, or January 15 if no notice was received

If you receive a Notice of Assessment from the Assessor's office, your appeal deadline is printed on the notice, typically either 30 or 90 days from the mailing date. If you did not receive an assessment notice, the appeal deadline is January 15 (or the first business day thereafter) of the tax year. Tax bills are typically mailed in early October.

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How Charleston County Assesses Property

4%of market value

Assessed by: Charleston County Assessor's Office

Assessment cycle: quinquennial (every five years)

Notices typically mailed: Spring to early summer, with reassessment notices typically mailed August-September

Charleston County assesses properties at their fair market value as determined by the County Assessor, then applies South Carolina's 4% assessment ratio for owner-occupied residential properties. For example, if your home's market value is $350,000, at South Carolina's 4% assessment ratio your assessed value would be $14,000 ($350,000 × 0.04). At Charleston County's effective tax rate of approximately 0.50%, this would result in approximately $1,750 in annual property taxes. The last countywide reassessment was implemented in 2020, with the next scheduled for 2025.

The Appeal Process

Appeals are heard by the County Assessor. The appeal process in Charleston County follows a structured progression from informal review to formal hearings. At the Board of Assessment Appeals hearing, both you and the Assessor present evidence at least 15 days before the hearing date, and the Board issues a written decision within 15 days after the hearing.

1

File a written Notice of Objection with the Charleston County Assessor's Office within the deadline printed on your assessment notice (typically 90 days from mailing date) or by January 15 if you did not receive a notice. Include your property information, parcel number, reasons for disagreement, and supporting evidence.

2

The Assessor will review your objection and either correct the assessment or schedule an informal conference with you within 30 days. This conference may be held at the Assessor's office, at the property, or by telephone to discuss your concerns.

3

If the informal conference does not resolve the dispute, you must file a formal written Protest Form within 30 days after the conference. The Assessor will review the protest and inspect the property if necessary, then notify you in writing of their findings.

4

If you disagree with the Assessor's protest decision, you have 30 days from the date on that notice to file a written appeal to the Charleston County Board of Assessment Appeals. The Board will schedule a hearing where both you and the Assessor present evidence, and the Board will issue a written decision within 15 days.

5

If the Board of Assessment Appeals denies your appeal, you may appeal to the South Carolina Administrative Law Court within 30 days of the Board's decision. This is a formal legal proceeding where you may want to consider hiring a property tax attorney.

6

As a final option, you may appeal the Administrative Law Court's decision to the South Carolina Court of Appeals or Supreme Court if you believe there were errors of law in the lower court's decision.

Required form: Written Notice of Objection (available from Assessor's office or at charlestoncounty.org)

Filing Methods

mail:Charleston County Assessor's Office, 3875 Faber Place Drive, Suite 100, North Charleston, SC 29405-8547
in-person:101 Meeting Street, Suite 135, Charleston, SC 29401
phone:Call (843) 958-4100 to request appeal forms
online:Visit charlestoncounty.org/departments/assessor for forms and information

Evidence to Bring

Recent comparable sales of similar properties in your neighborhoodIndependent professional appraisal conducted within the past yearPhotographs documenting property condition issues or defectsRepair estimates or contractor invoices for needed repairsDocumentation of property characteristics that may lower value (flooding, easements, zoning restrictions)

Charleston County Assessor Contact

Charleston County Assessor's Office

Phone: (843) 958-4100

Address: 101 Meeting Street, Suite 135, O.T. Wallace County Office Building, Charleston, SC 29401

Website: https://charlestoncounty.org/departments/assessor/

Online Portal: https://sc-charleston.publicaccessnow.com/

Hours: Monday-Friday 8:30 AM - 5:00 PM (Reassessment Hotline: 843-958-4144)

Tax Exemptions in Charleston County

Legal Residence Exemption (4% Assessment Ratio)

Reduces assessment ratio from 6% to 4%

Owner-occupied primary residences are assessed at 4% of fair market value instead of the standard 6% rate applied to second homes and investment properties. This effectively reduces your assessed value and property tax bill by one-third.

Eligibility: Property must be your primary legal residence where you live and are domiciled on January 1 of the tax yearDeadline: Apply with Charleston County Assessor's Office; one-time application

Homestead Exemption for Seniors, Disabled, and Blind

$50,000 exemption from fair market value

Exempts the first $50,000 of fair market value from property taxes for qualifying homeowners. This can save between $250-350 annually on a typical Charleston County home.

Eligibility: Must be age 65 or older, totally and permanently disabled, or legally blind; own and occupy the property as legal residence; and be a South Carolina resident for at least one yearDeadline: January 30 of the tax year (apply with Charleston County Auditor's Office)

Disabled Veteran Property Tax Exemption

100% exemption (no value cap)

Full exemption from all property taxes on the homestead dwelling and up to 5 acres, plus two private passenger vehicles, for veterans with 100% permanent and total service-connected disability. Retroactive to the year disability occurred (back to 2022). Surviving spouses retain the exemption.

Eligibility: Must be a military veteran with 100% permanent and total service-connected disability certified by the VA and county service officer; must own and occupy property as primary residenceDeadline: Apply through SC Department of Revenue online at dor.sc.gov or with county service officer

Agricultural Use Assessment

Assessment based on agricultural use value rather than market value

Reduces property tax by assessing qualified agricultural land at its use value rather than market value, resulting in substantial savings for working farms and timber properties.

Eligibility: Property must be used for bona fide agricultural purposes including timber production, crops, livestock, or related agricultural activitiesDeadline: January 15 annually (file Agricultural Use Application with Assessor's Office)

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Frequently Asked Questions

What is the deadline to appeal my property taxes in Charleston County for 2026?
The appeal deadline in Charleston County depends on whether you received an assessment notice from the Assessor's office. If you received a notice, the deadline is printed on that notice, typically 90 days from the date the notice was mailed. For the 2026 tax year, if you did not receive an assessment notice, your deadline to file an appeal is January 15, 2027 (or the first business day thereafter). It's critical to file before this deadline, as missing it means you must wait until the next tax year to appeal. Tax bills are typically mailed in early October, and call volumes are highest near the appeal deadline, so filing early in the appeal period ensures faster processing.
How do I file a property tax appeal in Charleston County?
To file a property tax appeal in Charleston County, you must submit a written Notice of Objection to the Charleston County Assessor's Office before the deadline printed on your assessment notice or by January 15 if you didn't receive a notice. You can obtain the appeal form by calling (843) 958-4100, visiting the office at 101 Meeting Street, Suite 135 in Charleston, or downloading it from charlestoncounty.org/departments/assessor. Your written objection should include your property information, parcel number, the specific reasons you believe the assessment is incorrect, and supporting evidence such as comparable sales data or an independent appraisal. Mail your completed appeal to Charleston County Assessor's Office, 3875 Faber Place Drive, Suite 100, North Charleston, SC 29405-8547. Filing early in the appeal period results in faster processing, as nearly half of all appeals are filed in the final two weeks before the deadline.
What is the homestead exemption worth in Charleston County?
The Homestead Exemption in Charleston County exempts the first $50,000 of your home's fair market value from property taxes if you're age 65 or older, totally and permanently disabled, or legally blind. At Charleston County's effective tax rate of approximately 0.50%, this exemption saves qualifying homeowners around $250 annually. However, when combined with the 4% Legal Residence assessment ratio (instead of 6% for non-owner-occupied properties), total annual savings can reach $350-500 on a moderately valued home. To qualify, you must own and occupy the property as your legal residence and have been a South Carolina resident for at least one year as of December 31 preceding the tax year. Apply by January 30 with the Charleston County Auditor's Office at 101 Meeting Street, Suite 105, Charleston, SC 29401, or call (843) 958-4200. Once approved, the exemption renews automatically each year as long as you remain eligible.
What happens at a Board of Assessment Appeals hearing in Charleston County?
A Board of Assessment Appeals hearing in Charleston County is a formal, quasi-judicial proceeding where you and the County Assessor both present evidence to support your positions before a fifteen-member board of private citizens appointed by County Council. Before the hearing, both parties must exchange evidence at least 15 days in advance. During the hearing, you'll present your case explaining why you believe your property is overassessed, using evidence such as comparable sales, independent appraisals, photographs of property defects, or documentation of market conditions. The Assessor will present their evidence supporting the current assessment. The Board will ask questions and review all evidence, then issue a written decision within 15 days after the hearing. The Board's decision is the final local authority on property tax appeals. If you disagree with their decision, your next option is to appeal to the South Carolina Administrative Law Court within 30 days of the Board's written decision.
How much can I save by appealing my property taxes in Charleston County?
Savings from a successful property tax appeal in Charleston County depend on how much your assessed value is reduced. With Charleston County's effective tax rate of approximately 0.50%, every $10,000 reduction in your home's market value saves you about $50 annually (factoring in the 4% assessment ratio). For example, if you successfully reduce your home's assessed market value from $400,000 to $350,000, you would save approximately $250 per year, or $2,500 over ten years. Statistics show that about 25% of homes nationwide are overassessed by an average of $1,346 too much annually. In Charleston County's rapidly appreciating real estate market, where median home values have climbed significantly, properties are particularly susceptible to overassessment during reassessment cycles. Even modest reductions can result in meaningful savings, especially when compounded over multiple years. Some Charleston County homeowners have reportedly achieved average reductions of $635 per year through professional appeal representation.
What evidence do I need for a Charleston County property tax appeal?
The strongest Charleston County property tax appeals include concrete evidence demonstrating that your property's assessed market value exceeds its actual fair market value. The most persuasive evidence includes recent comparable sales (within the past 6-12 months) of similar properties in your neighborhood that sold for less than your assessed value, showing differences in size, condition, features, and location. A recent independent professional appraisal conducted by a licensed appraiser specifically for appeal purposes carries significant weight. High-quality photographs documenting property defects, needed repairs, outdated features, or adverse conditions that the Assessor may not have considered are also valuable. Contractor repair estimates or invoices showing the cost to address significant issues (roof damage, foundation problems, HVAC replacement) help support your case. Additional supporting documentation might include evidence of environmental issues, flood zone designations, easements, zoning restrictions, or other factors that negatively impact market value. Simply disagreeing with the assessment amount or complaining about high taxes is not sufficient, you must prove the assessed value is incorrect based on market data.
Can I appeal my Charleston County property taxes if I just bought my home?
Yes, you can appeal your Charleston County property tax assessment even if you recently purchased your home, and in fact, your recent purchase price can be strong evidence in your appeal. If you bought your home for less than the assessed value on your property tax notice, this indicates the Assessor may have overvalued your property, since an arm's-length sale between a willing buyer and seller generally represents true market value. When filing your appeal, include your closing documents, purchase agreement, and any appraisal from your mortgage lender as evidence. However, keep in mind that the Assessor may argue your purchase price was below market due to special circumstances (foreclosure, family sale, distressed condition, or unique financing). You'll need to demonstrate that your purchase represented a fair market transaction. Additionally, South Carolina's 15% assessment cap over five years doesn't apply to new purchasers, when ownership changes, the assessment can immediately increase to current market value. If you believe the assessment still exceeds market value, file your written objection with the Charleston County Assessor within 90 days of your assessment notice or by January 15.
Does Charleston County reassess property values every year?
No, Charleston County conducts comprehensive countywide reassessments every five years as required by South Carolina law, not annually. The last countywide reassessment was implemented in 2020, and the next is scheduled for implementation in 2025. During reassessment years, the Assessor's Office evaluates all properties in the county to assign new values reflecting current market conditions, and assessment notices are mailed to property owners typically in late summer. Between reassessment cycles, your property value generally remains stable unless you make additions, improvements, or renovations that trigger an Added Tax Increment (ATI), which increases your assessment mid-cycle. South Carolina's assessment cap limits increases to 15% over the five-year reassessment period for owner-occupied properties where ownership hasn't changed, providing important protection during periods of rapid appreciation. This means even if your home's actual market value increases 30%, your assessed taxable value can only increase 15% until the next reassessment cycle or change in ownership. However, tax bills can still change annually due to changes in millage rates set by local governments.

Official Resources

Charleston County Assessor's Office - Official Website →

Access property assessment information, appeal forms, reassessment schedules, and contact information for the Charleston County Assessor's Office.

Charleston County Property Search - Online Portal →

Search and view property records, current assessments, ownership information, tax history, and parcel details for any property in Charleston County.

South Carolina Department of Revenue - Property Tax Exemptions →

Information about statewide property tax exemptions including homestead, disabled veteran, agricultural use, and other exemption programs with online application portal.

Charleston County Auditor's Office - Tax Information →

Property tax bill information, payment options, homestead exemption applications, and tax estimator tools for Charleston County taxpayers.

For state-wide appeal information including South Carolina's assessment ratio and deadlines, see our South Carolina Property Tax Appeal Guide →

Considering professional help with your appeal? Compare pricing, coverage, and pros/cons in our Best Property Tax Appeal Services (2026) or browse side-by-side service comparisons →

Looking for help in South Carolina? Compare South Carolina property tax appeal services →

More South Carolina Counties

Aiken County (Aiken)Anderson County (Anderson)Beaufort County (Hilton Head Island)Berkeley County (Moncks Corner)Dorchester County (St. George)Greenville County (Greenville)
← All South Carolina property tax appeal info

Sources: https://charlestoncounty.org/departments/assessor/ | https://www.ownwell.com/trends/south-carolina/charleston-county | https://sc-charleston.publicaccessnow.com/ | https://dor.sc.gov/tax-tips/veterans-learn-more-about-sc-property-tax-exemptions | https://www.charlestoncounty.org/departments/assessment-appeals/ | https://www.tax-rates.org/south_carolina/charleston_county_property_tax | https://usafacts.org/answers/how-many-people-live-in-the-us/county/charleston-county-sc/

Last verified: 2026-07-24