South Carolina requires boat registration through SCDNR, and the process depends on whether your boat is motorized, where you'll use it, and whether you own it outright

The South Carolina Department of Natural Resources (SCDNR) handles all recreational boat registration in the state. If your boat has a motor of any size — even an electric trolling motor — it must be registered. Non-motorized boats like canoes, kayaks, and sailboats without motors do not require registration. Registration is valid for three years from the date of issue and costs vary based on boat length and motor type.

You can register a boat in person at any SCDNR regional office, by mail, or online through the SCDNR website. The online option is fastest if you have all required documents ready. Registration requires proof of ownership (bill of sale, manufacturer's certificate of origin, or previous registration), proof of South Carolina residency, and the hull identification number (HIN) from your boat.

Key Takeaways

  • Any motorized boat in South Carolina must be registered with SCDNR, regardless of where you plan to use it.
  • Registration is valid for three years and requires proof of ownership, residency, and your boat's hull identification number.
  • You can register online, by mail, or in person at an SCDNR office, with online being the fastest option.
  • Registration fees depend on your boat's length and motor type, and you'll receive a registration number to display on your boat's hull.
  • If you're registering a used boat, you may need a bill of sale or previous registration document as proof of ownership.

What documents you need before you register

Proof of ownership is the first requirement. If you're registering a new boat, bring the manufacturer's certificate of origin. For a used boat, you need either a bill of sale signed by the previous owner or your previous boat registration from another state. If you're buying from a dealer, they usually provide the bill of sale. Private sales require a written bill of sale — a straightforward document with the seller's name, buyer's name, boat description, sale date, and price.

You also need proof that you live in South Carolina. A driver's license, utility bill, lease agreement, or property tax bill all work. The document must show your current address. Finally, locate your boat's hull identification number (HIN), which is a 12-character code stamped into the hull, usually on the starboard (right) side near the waterline or on the transom (back). Some boats have the HIN in multiple locations. Write it down exactly as it appears — SCDNR will verify it matches your boat.

How to register online versus by mail or in person

Online registration through the SCDNR website is the fastest route if you have all documents ready. You'll enter your boat information, ownership details, and residency proof, then pay the registration fee by credit or debit card. You receive a confirmation number when ready, and your registration certificate arrives by mail within one to two weeks. This method works for new boats, used boats, and renewals.

By mail, you send a completed registration form (available on the SCDNR website), copies of your proof of ownership and residency, and a check or money order to the SCDNR office. Mail processing takes two to four weeks. In person, you visit an SCDNR regional office with originals of all documents and pay in cash, check, or card. You walk out with a temporary registration receipt and receive your permanent certificate by mail. In-person registration is useful if you have questions about your documents or need when ready proof of registration.

Registration fees based on boat size and motor type

SCDNR charges different fees depending on your boat's length and whether it has an inboard motor, outboard motor, or no motor. Boats under 16 feet cost less than boats 16 to 26 feet, which cost less than boats over 26 feet. A boat with an outboard motor typically costs more than one with an inboard motor of the same length. Non-motorized boats that do require registration (such as sailboats with auxiliary motors) have lower fees than motorized vessels.

The exact fee schedule changes periodically, so check the SCDNR website or call your regional office for current rates before you register. Fees are non-refundable once registration is issued. If you register a boat and then sell it before the three-year period ends, you cannot transfer the registration to the new owner — they must register it in their own name. The previous owner does not receive a refund for unused registration time.

What happens after you register: the registration number and decal

Once SCDNR processes your registration, you receive a certificate and a registration number. This number must be displayed on both sides of your boat's hull in characters at least three inches tall, in a contrasting color to the hull. The number format is two letters followed by a series of numbers (for example, SC 1234 AB). You paint or attach this number permanently — it cannot be removable or temporary.

You also receive a validation decal (sticker) that shows the year of registration. This decal goes on the registration certificate itself, not on the boat. Keep your registration certificate on board whenever you operate the boat — law enforcement can request it during a safety stop. If you lose your certificate, you can request a replacement from SCDNR for a small fee. If your boat is stolen or you sell it, notify SCDNR in writing so they can close out the registration.

Renewing your registration before it expires

Your registration is valid for three years from the issue date. SCDNR does not send renewal reminders, so mark your certificate's expiration date on your calendar. You can renew online, by mail, or in person using the same methods as initial registration. Renewal is simpler than initial registration because you don't need to re-prove ownership — you only need your current registration certificate, proof of residency, and payment.

Renew before the expiration date to avoid operating an unregistered boat, which can result in a fine. If your registration has already expired, you can still renew it, but you may face a penalty. Some SCDNR offices allow a grace period of a few weeks, but this is not may provide. If you're unsure whether your registration is still valid, contact your local SCDNR office with your registration number.

Special situations: transfers, out-of-state boats, and temporary use

If you buy a boat that was previously registered in South Carolina, the new owner must register it in their name — registrations do not transfer. Bring the previous registration, bill of sale, and your residency proof to complete a new registration. If you're moving to South Carolina with a boat registered in another state, you have 30 days to register it with SCDNR. Bring your out-of-state registration, bill of sale or proof of ownership, and South Carolina residency proof.

If you're visiting South Carolina with a boat registered out of state, you do not need to register it for temporary use, but your out-of-state registration must be valid and displayed. If you plan to keep the boat in South Carolina for more than 30 days, registration is required. Non-residents who own property in South Carolina and keep a boat there year-round may be required to register — contact SCDNR to confirm your situation.

Frequently Asked Questions

Do I need to register a kayak or canoe?

No. Non-motorized boats like kayaks, canoes, and rowboats do not require registration. However, sailboats with auxiliary motors and any boat with an electric trolling motor must be registered, even if the motor is small.

What if I can't find my boat's hull identification number?

Check the transom (back of the boat), the starboard (right) side near the waterline, and inside the cabin or console. If you still cannot locate it, contact SCDNR with your boat's make, model, and year — they can help you find it or may issue a registration based on other documentation.

Can I register a boat I'm still paying off to a lender?

Yes. You register the boat in your name as the owner. If a lender has a lien on the boat, that is a separate legal matter between you and the lender — it does not affect SCDNR registration. Some lenders require you to list them on the registration; check your loan documents.

What if my registration certificate is damaged or lost?

Contact SCDNR with your registration number and request a replacement certificate. There is a small fee, and replacements are processed by mail. Until you receive it, keep a copy of your confirmation email or receipt if you registered online.

How do I know which SCDNR office is closest to me?

The SCDNR website lists all regional offices by county with addresses, phone numbers, and hours. You can also call the main SCDNR office to find the nearest location. Many offices are open Monday through Friday during business hours, with limited Saturday hours at some locations.