South Carolina’s boat registration process has a few quirks that trip up first-time buyers every year. Most of them are easy to handle once you know about them — but nobody tells you upfront.

1. You Can Use Your Boat While You Wait for Registration

Most people don’t realize SCDNR will issue a temporary certificate of number when you submit your application. It’s valid for 60 days, giving you full legal use of your boat on SC waters while your permanent registration is being processed.

The catch: you need to carry both the temporary certificate and a photocopy of your bill of sale on board whenever you’re out. Leave either one behind and you could have a problem if stopped by a warden.

2. You Have to Pay County Property Taxes Before SCDNR Will Touch Your Application

This one surprises a lot of buyers. If you purchased your boat from someone already in South Carolina, you must pay county property taxes on the vessel before SCDNR will process your registration application.

The sequence matters: pay your county taxes first, get the paid receipt, then submit everything to SCDNR. If you skip this step, your application sits in limbo until it’s resolved.

Exception: If you bought the boat out of state or new from a dealer, you won’t owe county taxes at the time of registration — you’ll be billed by your county later.

3. Not Every Boat Has to Be Registered

South Carolina exempts certain watercraft from registration entirely:

  • Federally documented vessels (boats with a USCG documentation number instead of a state number)
  • Windsurfers
  • Human-powered watercraft — kayaks, canoes, paddleboards, rowboats

If your boat falls into one of these categories, you can skip the registration process altogether. Documented vessel owners still need to display their documentation numbers, but no SC registration decals are required.

4. The Casual Excise Tax Is Capped — and Families Are Fully Exempt

South Carolina charges a 5% casual excise tax on the purchase price of used boats bought through private sales. On a $20,000 boat, that’s $1,000… except it’s not, because the tax is capped at $500.

Even better: if you’re receiving a boat from an immediate family member — parent, child, sibling, grandparent, grandchild, or spouse — you owe zero casual excise tax. The family transfer exemption is claimed in Section I of the BTR-1 form.

5. Sellers Are Required to Notify SCDNR Within 30 Days

This one catches sellers off guard. Once you sell your boat, you’re legally required to notify SCDNR in writing within 30 days using the “Request for Boat and/or Motor Status Change” form.

Why does it matter? Until SCDNR has that notification on file, the boat is still registered to you. If the new owner operates the boat illegally or causes damage before completing their own registration, your name is still attached to it.

Mail your notification to: SCDNR, P.O. Box 167, Columbia, SC 29202.

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