South Carolina Property Tax 2026: 4% Legal Residence, $50,000 Homestead and ATI

South Carolina has one of the most homeowner-friendly property tax structures in the Southeast: a 4 percent assessment ratio on primary residences (versus 6 percent on other property), a $50,000 Homestead Exemption for seniors and disabled homeowners, and the ATI (Assessable Transfer of Interest) rule that caps taxable value at 75 percent on transferred property. This 2026 guide walks through all three.

How South Carolina Property Tax Works

South Carolina property tax is administered by 46 county assessors and county auditors. Tax rates are set by counties, municipalities, school districts, and special taxing districts. The South Carolina Department of Revenue oversees standards.

Assessment ratios

• 4% Legal Residence: owner-occupied primary residence
• 6% Other: rental residential, second homes, commercial
• Agricultural Use Value: qualifying farmland at use value
• 10.5% Manufacturing/Utility: manufacturing and utility property

The 4% Legal Residence Rule

The 4% assessment ratio for owner-occupied primary residences is the single most valuable tax benefit in South Carolina. Applied to homeowners who qualify as the property's Legal Residence.

Act 388 and School Tax Elimination (2006)

Under South Carolina Act 388 of 2006, the school district operating portion of property tax is eliminated entirely for Legal Residence properties. Schools are instead funded through state sales tax revenue. This dramatically reduces the tax burden on owner-occupants.

Eligibility

• Own and occupy the property as your primary residence on December 31 preceding the tax year
• Be a legal resident of South Carolina (driver's license, voter registration)
• Property must be titled in your name or trust/LLC where you are beneficial owner
• Not have any primary residence election elsewhere

Application

File a Legal Residence application with your county assessor. One-time filing — the status continues as long as the property remains your primary residence. If you move, you must file a new application for the new home (and your old home reverts to 6% assessment).

Homestead Exemption (Age 65+, Disabled, or Blind)

A separate benefit from Legal Residence, the Homestead Exemption fully exempts the first $50,000 of fair market value from property tax for qualifying South Carolina residents.

Eligibility

• South Carolina legal resident for at least one year on or before December 31 of the prior year
• Approved for the 4% Legal Residence assessment ratio
• AND one of: age 65+, totally and permanently disabled, or legally blind

Value of the exemption

On a typical South Carolina home with combined effective rate of approximately 0.5% to 0.7%, the $50,000 Homestead Exemption saves $250 to $350 per year in tax. Combined with Legal Residence, a qualifying senior homeowner can have a total annual tax under $500 on a moderately-valued home.

Application

Apply with the local tax authority (county auditor) by July 15 of the year for which the exemption is claimed. One-time application; continues automatically.

ATI (Assessable Transfer of Interest)

Under South Carolina Code § 12-37-3140, when a property undergoes an "Assessable Transfer of Interest" (ATI) — essentially a sale or transfer to a non-family member — the fair market value is reset as of December 31 of the year of transfer.

The ATI 75% Exemption

To mitigate "welcome stranger" tax shock, South Carolina provides an ATI exemption. On a transferred property, the taxable value for the first tax year after ATI equals the higher of:

• 75% of the post-ATI fair market value, OR
• The prior year's fair market value

This caps the tax jump for the first year after transfer. Subsequent years use current market value (subject to reassessment cycles).

Qualifying transfers (ATI triggers)

• Sale to a non-family member
• Transfer to a trust that is not the grantor's revocable trust
• Foreclosure
• Certain long-term leases

Non-ATI transfers (do not trigger reset)

• Transfers between spouses
• Transfer to a child or grandchild (with limitations)
• Conveyance to revocable trust where grantor retains beneficial interest

Other Exemptions and Programs

Disabled Veteran Exemption

Veterans with 100% service-connected total and permanent disability (or their surviving spouses) are exempt from property tax on their primary residence. Similar benefits for surviving spouses of servicemembers killed in active duty.

Paraplegic or Hemiplegic Exemption

Full property tax exemption on the primary residence for South Carolina residents with paraplegic or hemiplegic disability from any cause.

Agricultural Use Value

Farms actively used for agricultural production are taxed on use value rather than market value — often reducing assessed value by 80-95%. Conversion to non-qualifying use triggers rollback tax covering current year plus 5 prior years plus interest.

Appealing Your Assessment

South Carolina assessment appeals flow through county procedures.

Step 1: Written notice of objection

Within 90 days of the notice of assessment (or, if no notice sent, by the deadline on your tax bill), file a written objection with the county assessor. Include:

• Your name, property address, and parcel number
• The valuation you believe is correct
• Supporting evidence (comparable sales, appraisal, etc.)

Step 2: County Board of Assessment Appeals

If the assessor denies or partially denies your objection, appeal to the County Board of Assessment Appeals. The Board issues a decision within 30 days of hearing.

Step 3: Administrative Law Court

From the County Board, appeal to the South Carolina Administrative Law Court within 30 days.

Step 4: Court of Appeals

ALC decisions appealable to the South Carolina Court of Appeals on the record.

Payment Schedule

South Carolina property tax bills are typically mailed in October. Payment is due by January 15 (with penalty applying after that date). No installment plan in most counties; some counties offer partial payment.

• January 15 deadline: no penalty
• February 1: 3% penalty
• March 17: additional 7% penalty (total 10%)
• May: additional 5% penalty (total 15%)

After extended delinquency, the county treasurer sells the tax lien at public auction (typically in October). Homeowner has a 12-month redemption period to reclaim by paying delinquent tax, interest, and fees.

Frequently Asked Questions

What is South Carolina's Legal Residence 4% assessment ratio?

South Carolina assesses owner-occupied primary residences at 4% of fair market value, versus 6% for all other property (rentals, second homes, commercial). Combined with Act 388's elimination of the school district operating tax for Legal Residence properties, this makes owner-occupation dramatically cheaper. File a Legal Residence application with your county assessor once after purchase.

What is the South Carolina Homestead Exemption?

A full exemption of the first $50,000 of fair market value from property tax for South Carolina residents who are age 65+, totally and permanently disabled, or legally blind. Requires at least 1 year of SC residency and approval for the 4% Legal Residence ratio. Apply by July 15 with the county auditor.

What is ATI in South Carolina property tax?

Assessable Transfer of Interest — essentially a sale or non-family transfer of property. Triggers a fair market value reset as of December 31 of the transfer year. To mitigate tax shock, the first-year taxable value is capped at the higher of 75% of post-ATI fair market value or the prior year's fair market value.

When is the South Carolina property tax appeal deadline?

File written objection with the county assessor within 90 days of the notice of assessment (or by the date on your tax bill if no notice). If denied, appeal to the County Board of Assessment Appeals, then to the Administrative Law Court within 30 days of the Board's decision, then to the Court of Appeals.

Do disabled veterans pay property tax in South Carolina?

No, if the veteran has 100% service-connected total and permanent disability. The veteran's primary residence is fully exempt from property tax. Surviving spouses of 100% disabled veterans (not remarried) and surviving spouses of servicemembers killed in active duty also qualify for full exemption.