Understanding South Carolina Property Taxes: A Local Guide for Charleston Buyers

South Carolina Property Taxes: The Fast Facts

South Carolina has some of the lowest property taxes in the country, which is a major perk for buyers relocating to the Lowcountry. Primary residences are taxed at a 4% assessment ratio, and each county applies its own millage rate, which determines your final bill. The state also offers a $50,000 homestead exemption for homeowners who are 65+, legally blind, or permanently disabled.

Overall, South Carolina property taxes average around 0.5%, placing the state far below national tax burdens.

Charleston’s Three Counties

Greater Charleston is made up of three counties (Berkeley, Dorchester, and Charleston) each with its own millage rates, median values, and tax averages. Here’s how they compare:

Berkeley County

Berkeley County is known for competitive pricing and lower tax exposure overall. For buyers looking to maximize affordability without sacrificing proximity to Charleston, this county is often a front runner.

Median property tax: $761 per year

Median home value: $149,700

Average effective tax rate: 0.51%

Charleston County

Charleston County’s median tax bill reflects higher than the other two counties primarily because home values are higher—not because the tax rate is. The effective rate remains impressively low (similar to Berkeley) making higher-value homes comparatively more affordable than they would be elsewhere.

Median property tax: $1,205 per year

Median home value: $242,100

Average effective tax rate: 0.50%

Dorchester County

While Dorchester falls in line as slightly higher than Berkeley and Charleston, it is still lower than many national averages. Its rate reflects strong school districts and growing communities while remaining relatively tax-friendly.

Median property tax: $1,147 per year

Median home value: $171,400

Average effective tax rate: 0.67%

This is just one of the many reasons why I strongly recommend using a local lender familiar with our area, tax bills vary greatly across the Charleston region.

How Property Taxes Are Calculated

 If you’ve ever tried to calculate your estimated tax bill and found yourself squinting at numbers like you’re decoding hieroglyphics—congratulations, you’re normal. Using a property tax calculator can help, but it’s still an estimate. Understanding the assessment ratio and the local millage structure is key to getting realistic expectations.

South Carolina uses two key components:
1. Assessment Ratio:

• 4% for primary residences
• 6% for second homes or investment properties

2. Local Millage Rates that Vary Depending On:

• County
• School district
• Reappraised value
• Additional district assessments

Homes are reappraised every five years, meaning tax bills shift as property values change.

What About Personal Property?

South Carolina also taxes vehicles, boats, RVs, and other personal property. Most cars are assessed at 6% of market value, and the local millage rate determines the final amount. 

Where I Come In as Your Charleston Realtor

Taxes aren’t exactly the glamorous part of homeownership, but they’re one of the smartest areas to understand before you buy—especially in a region with three counties, multiple municipalities, and constantly shifting home values. My role isn’t to tell you what your taxes will be, but to make sure you know the right questions to ask, the factors that matter most, and how different parts of the Charleston area can impact your bottom line.

Whether you're relocating, upgrading, or exploring Mount Pleasant, Daniel Island, Isle of Palms, or downtown Charleston, I make sure you have the full picture—not just the pretty one. If you’re planning a move and want clarity (without the confusion), reach out. I’m here to guide you through the real numbers behind your next home.

***This article is for general informational purposes only. Please verify all tax details with a licensed tax professional or the appropriate local authority. I am not providing tax advice.***