How South Carolina's Tax System Works and Who Pays What

South Carolina collects taxes at the state and local level, and the money funds schools, roads, courts, and services

South Carolina's tax system has three main parts: income tax (what you pay on wages), sales tax (what you pay when you buy things), and property tax (what you pay to own land or a home). The state collects income and sales tax. Counties and cities collect property tax. Each type of tax funds different services—income tax goes largely to education and state operations, sales tax supports general state spending, and property tax pays for local schools, fire departments, and county government.

The reason this matters is that your total tax burden depends on where you live in South Carolina, what you earn, what you buy, and what property you own. A person in one county might pay a different property tax rate than someone in another county, even though state income and sales tax are the same statewide. Understanding which tax pays for what also helps you see where your money goes and why rates change.

Key Takeaways

• South Carolina's income tax ranges from 0% to 7% depending on how much you earn, and it is collected by the state Department of Revenue.
• Sales tax is 6% statewide, but counties can add a local option sales tax that ranges from 0.5% to 2.5%, making your total sales tax between 6% and 8.5%.
• Property tax is set by each county and varies widely—a home worth $200,000 might cost $1,500 a year in property tax in one county and $3,000 in another.
• Income tax is withheld from paychecks by employers, sales tax is collected at the register, and property tax is billed annually by your county assessor.
• You file a state income tax return each year if you earned income, even if no tax was withheld, because you may be owed a refund.

How South Carolina's income tax brackets work

South Carolina uses a progressive income tax system, which means the tax rate increases as your income increases. You do not pay the same rate on every dollar you earn. Instead, your income is divided into brackets, and each bracket has its own rate. For 2024, the brackets start at 0% for the first portion of income and go up to 7% for income above a certain threshold. The exact dollar amounts for each bracket change yearly, so you should check the Department of Revenue website for the current year's brackets before filing.

When your employer withholds income tax from your paycheck, they use these brackets to estimate how much you will owe for the year. If they withhold too much, you get a refund when you file your return. If they withhold too little, you owe money. You can adjust your withholding by filling out a new W-4 form with your employer if you want to change how much comes out of each paycheck.

Self-employed people and business owners pay income tax on their net profit (revenue minus business expenses). They also pay self-employment tax, which is a federal tax that covers Social Security and Medicare. Self-employed people usually make quarterly estimated tax payments to the state and federal government rather than having tax withheld from a paycheck.

Sales tax: the 6% state rate plus local add-ons

Every purchase you make in South Carolina is subject to a base sales tax of 6%. However, most counties have added a local option sales tax on top of that. This local tax ranges from 0.5% to 2.5% depending on the county, which means your total sales tax can be anywhere from 6% to 8.5%. The local tax is collected by the same retailer and sent to the county, where it funds schools, transportation, and other local services.

Sales tax applies to most goods—clothing, groceries, electronics, gas—but not to services like haircuts or car repairs. Some items are exempt for policy reasons: prescription medications, for example, are not taxed, and neither is most food you buy at a grocery store (though prepared food and restaurant meals are taxed). If you are unsure whether a specific item is taxed, ask the cashier or check the Department of Revenue website.

When you buy something online from a retailer that has a physical location in South Carolina or meets certain sales thresholds, sales tax is usually collected at checkout. If tax was not collected, you may owe it when you file your state income tax return, though this is rarely enforced for individual purchases.

Property tax: the largest tax bill for homeowners

Property tax is the tax you pay annually to own real estate—a house, land, or rental property. It is set and collected by your county, not by the state, which is why the rate varies dramatically across South Carolina. A home worth $200,000 might generate a property tax bill of $1,500 in one county and $3,000 in another. The rate depends on the county's millage rate, which is the amount of tax per $1,000 of assessed property value. Your county assessor determines the assessed value of your property, usually every few years.

Property tax bills are sent to the owner of record, usually once a year. If you have a mortgage, your lender may require you to pay property tax through an escrow account—meaning you pay a portion each month with your mortgage payment, and the lender pays the county on your behalf. If you own the property outright, you pay the county directly. Property tax is due by a specific date set by your county; if you miss it, you may owe penalties and interest.

Homeowners may be may be able to access for a homestead exemption, which reduces the assessed value of your primary residence and lowers your property tax bill. The amount of the exemption varies by county. You must apply for it through your county assessor's office, usually in the year you purchase the home or move to a new county. Seniors and disabled property owners may may have access to for additional exemptions or deferrals.

Who collects each tax and where the money goes

The South Carolina Department of Revenue collects income tax and the state portion of sales tax. Income tax revenue funds state operations, education, and infrastructure. Sales tax revenue is split between the state and local governments—the state keeps 6%, and counties keep their local option portion. The state also uses sales tax to fund Medicaid and other social services.

Your county government collects property tax through the county assessor's office. Property tax funds local schools (the largest share), county government operations, fire departments, libraries, and other county services. Some counties also use property tax to fund special districts like water authorities or fire protection districts. When you pay property tax, you are funding services you use directly—schools, roads, emergency services—in your own county.

If you live in a city, you may also pay a city property tax in addition to county property tax. Cities use this revenue for police, streets, parks, and city government. The city tax rate is separate from the county rate and is listed separately on your property tax bill.

How to file your state income tax return

You must file a South Carolina income tax return if you earned income during the year and meet the filing threshold set by the state. The threshold changes yearly based on your age and filing status. Even if you do not owe tax, you should file if you had income withheld, because you may be owed a refund. The deadline to file is usually April 15, though you can request an extension.

You can file online through the Department of Revenue website, by mail, or through a tax preparer. If you file online, you will receive your refund faster—usually within two to four weeks if you choose direct deposit. If you owe tax, you can pay online, by mail, or through an installment plan. The Department of Revenue website has a list of free tax preparation services for low-income filers.

When you file, you will need documents like your W-2 (if you are employed), 1099 forms (if you are self-employed or have other income), and records of deductions or credits you are claiming. Keep copies of your return and supporting documents for at least three years in case the Department of Revenue audits you.

Tax credits and deductions that lower what you owe

South Carolina offers several income tax credits and deductions that can reduce the amount of tax you owe. A tax credit directly reduces your tax bill dollar-for-dollar, while a deduction reduces your taxable income. Common credits include the Earned Income Tax Credit (EITC), which helps low-income workers, and the Child and Dependent Care Credit. Common deductions include the standard deduction (a set amount based on your filing status) and itemized deductions like mortgage interest or charitable donations.

You can claim either the standard deduction or itemized deductions, but not both. Most people benefit from the standard deduction because it is simpler and often larger. If you have significant deductible expenses—like a mortgage, property tax, or charitable donations—you may benefit from itemizing instead. A tax preparer can help you decide which approach saves you more money.

South Carolina also offers credits for specific situations: education credits if you paid tuition, a credit for taxes paid to other states, and credits for certain types of business income. Check the Department of Revenue website or speak with a tax preparer to see which credits apply to your situation.

Frequently Asked Questions

Do I have to file a South Carolina income tax return if I work in South Carolina but live in another state?

Yes, if you earned income in South Carolina, you must file a South Carolina return on that income. You will also file a return in your home state. To avoid paying tax twice on the same income, you can claim a credit for taxes paid to South Carolina on your home state return. Some states have reciprocal agreements with South Carolina that simplify this process.

What happens if I do not pay my property tax on time?

If property tax is not paid by the due date, you will owe a penalty (usually 3% of the unpaid tax) plus interest. If the tax remains unpaid for a long time, the county can place a lien on your property or sell it at a tax sale to recover the money owed. Contact your county assessor immediately if you cannot pay on time to discuss payment options or a payment plan.

Can I deduct sales tax I paid during the year on my state income tax return?

No, South Carolina does not allow a deduction for sales tax paid. However, if you are self-employed or own a business, you can deduct sales tax you paid on business purchases as a business expense. You cannot deduct sales tax on personal purchases.

How do I know if my property is assessed fairly for tax purposes?

Your county assessor's office sends you a notice of assessed value, usually every few years. If you believe the value is too high, you can file a formal appeal with your county assessor within a set time frame (usually 30 days of receiving the notice). Bring evidence like recent appraisals, comparable sales in your area, or documentation of property damage. If you disagree with the assessor's decision, you can appeal to the county board of equalization.

What is the difference between a tax refund and a tax credit?

A tax credit reduces the amount of tax you owe. A refund is money the government sends back to you after you file your return, usually because you had too much tax withheld from your paycheck or because you claimed a refundable credit. A refundable credit can result in a refund even if you owed no tax; a non-refundable credit can only reduce your tax bill to zero.