How Vehicle Tax Works in Horry County, South Carolina

What you owe in Horry County vehicle tax

Horry County charges a vehicle tax based on the assessed value of your car, truck, or motorcycle. The tax rate is set each year by the Horry County assessor's office and applies to all registered vehicles in the county. You pay this tax once a year, usually when you renew your vehicle registration.

The amount you owe depends on what your vehicle is worth. Newer cars cost more to tax than older ones. The county assessor determines the value using depreciation schedules — a standard method that reduces a vehicle's taxable value each year it ages. A five-year-old sedan will have a lower tax bill than a brand-new one, even if they are the same model.

This is separate from your registration fee and any other county or state fees. The vehicle tax goes directly to Horry County government and funds county services.

Key Takeaways

• Horry County vehicle tax is based on your vehicle's assessed value, not a flat fee, so the amount changes with the age and type of vehicle you own.
• You pay the tax once per year when you renew your vehicle registration through the Horry County Auditor's office.
• The Horry County assessor's office sets the tax rate each year and maintains the depreciation schedules used to calculate your vehicle's value.
• Certain vehicles, including some farm equipment and government-owned vehicles, may be exempt from the tax.
• If you believe your vehicle's assessed value is too high, you can file a formal appeal with the assessor's office.

How the assessed value is calculated

The Horry County assessor's office assigns a value to your vehicle based on its age, make, model, and condition. They use depreciation tables that reduce the value each year. A new vehicle might be assessed at close to its purchase price, but that value drops significantly in year two, then more gradually after that.

You do not submit information about your vehicle's condition or mileage. The assessor uses standard depreciation schedules, which means two identical vehicles of the same year and model will have the same assessed value in Horry County, regardless of how many miles are on them or whether one is in perfect condition and the other needs work.

The assessed value is not the same as what you could sell the vehicle for. It is a tax calculation, not a market appraisal. The county uses it to determine how much tax you owe.

Where to pay and when payment is due

You pay Horry County vehicle tax through the Horry County Auditor's office when you renew your vehicle registration. You cannot pay the tax separately — it is bundled with your registration renewal. The auditor's office handles both the tax bill and the registration.

Payment is due by the date your registration expires. If you renew your registration late, you will owe penalties on the unpaid tax. The auditor's office can tell you the exact due date for your vehicle based on your license plate number.

You can renew your registration and pay the tax in person at the Horry County Auditor's office, by mail, or online through the county's website if that option is available. Call the auditor's office to confirm which payment methods they currently accept.

Exemptions and special cases

Some vehicles do not owe Horry County vehicle tax. Farm equipment used primarily for agricultural purposes is typically exempt. Government-owned vehicles, including police cars and fire trucks, are exempt. Vehicles owned by certain nonprofit organizations may also may have access to for exemption, though the rules vary.

If you believe your vehicle should be exempt, contact the Horry County assessor's office with documentation of the vehicle's use or ownership status. Exemptions are not automatic — you must request them and provide proof.

Disabled veterans may be may be able to access for a property tax exemption that can include vehicles in some cases. Check with the assessor's office about whether your situation qualifies.

Challenging your vehicle's assessed value

If you think the county has overvalued your vehicle, you can file a formal appeal. The process starts with the Horry County assessor's office. You will need to submit a written request explaining why you believe the value is incorrect and provide supporting documentation — for example, a recent repair estimate showing major damage, or a bill of sale showing you paid less than the assessed value.

The assessor's office will review your appeal and either adjust the value or deny it. If you disagree with their decision, you can appeal to the Horry County Board of Equalization, which is a separate body that hears tax disputes. The board meets on a schedule set by the county, and you may be able to present your case in person.

Appeals must be filed within a specific time window, usually before a certain date in the tax year. Contact the assessor's office early if you plan to appeal, because missing the deadline means you lose the right to challenge that year's assessment.

How vehicle tax differs from registration fees

Vehicle tax and registration fees are two separate charges. The registration fee is set by the state of South Carolina and covers the cost of issuing your license plate and registration documents. The vehicle tax is set by Horry County and is a local tax on the value of your vehicle.

Both are due at the same time and paid together through the auditor's office, which can make them seem like one bill. But they go to different places: the registration fee goes to the state, and the vehicle tax goes to Horry County. Understanding the difference matters if you are trying to understand your bill or if you move to a different county, because the tax rate will change but the registration fee will not.

What happens if you do not pay

If you do not pay your vehicle tax by the due date, the county will charge penalties and interest on the unpaid amount. The longer you wait, the larger the debt grows. Unpaid vehicle taxes can also prevent you from renewing your registration, which means you cannot legally drive the vehicle.

If the debt remains unpaid for a long time, the county may place a lien on the vehicle, which means they have a legal claim to it. In some cases, the county can seize and sell the vehicle to recover the unpaid tax. If you are unable to pay, contact the auditor's office immediately to discuss payment options or a payment plan.

Frequently Asked Questions

Does Horry County vehicle tax apply to motorcycles and RVs?

Yes, motorcycles are taxed the same way as cars — based on assessed value. RVs and travel trailers are also subject to the tax if they are registered as vehicles in South Carolina. Contact the auditor's office with your vehicle type to confirm the tax amount.

What if I sell my vehicle before the tax year ends?

You are responsible for the tax through the date your registration expires, even if you sell the vehicle earlier. The new owner will need to register it in their name and will owe tax based on their registration date. Keep your bill of sale as proof of the sale date in case questions arise.

Can I get a refund if I paid too much vehicle tax?

If your appeal is successful and the assessed value is lowered, the county will refund the overpayment or credit it toward future taxes. If you overpaid by mistake, contact the auditor's office with proof of payment and they can investigate whether a refund is due.

Does the vehicle tax change if I move within South Carolina?

Yes. If you move to a different county, the tax rate and assessed value may change because each county sets its own rate and uses its own depreciation schedules. When you register your vehicle in the new county, you will owe that county's tax.

How do I find out what my vehicle tax will be before I buy a car?

Contact the Horry County assessor's office with the year, make, and model of the vehicle you are considering. They can tell you the assessed value and calculate the annual tax amount. This can help you budget for the total cost of ownership.