New law lowers the nation’s highest boat tax rate and ends separate taxation of outboard motors
COLUMBIA, SC — South Carolina boat owners will see significant financial relief after Governor Henry McMaster signed H.3858 into law, restructuring how the state assesses and bills property taxes on watercraft. The measure targets long‑standing concerns about South Carolina’s unusually high boat tax rate, which has been widely considered the highest in the country and a major factor driving many owners to register vessels in other states.
The new law phases in a substantial exemption on a boat’s fair market value, ultimately reducing the effective assessment ratio from 10.5 percent to 6%. The exemption will roll out over three years beginning in 2027, giving counties time to adjust billing systems and update internal processes. By 2029, 42.8571% of a boat’s value will be exempt from taxation, aligning the tax burden more closely with neighboring coastal states.
H.3858 also eliminates the long‑criticized practice of taxing boats and outboard motors separately. Under the new structure, outboard motors will no longer require a title, and counties will issue a single property tax notice that includes both the boat and its motor. Motors of five horsepower or more must still be registered, but they will no longer be treated as separate taxable property. The change is expected to simplify paperwork for owners and reduce administrative burdens for county offices.
The legislation also adjusts several fees. The standard boat registration fee will drop from $20 to $10, while a new $10.00 motor registration fee replaces the previous motor title fee. State agencies, including the Department of Natural Resources, will update their systems to reflect the new requirements.
Supporters of the bill say the reforms will help stabilize the state’s boating economy, reduce incentives for out‑of‑state registration, and make boat ownership more attainable for working families. The boating industry is a major economic driver in South Carolina, and lawmakers have emphasized the need to modernize tax policy to keep pace with growth along the coast and inland waterways.
The law passed with overwhelming bipartisan support in both chambers, signaling broad agreement that the state’s previous tax structure placed an outsized burden on boat owners. With the governor’s signature, the changes are now set to take effect gradually over the next several years.
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