South Carolina has enacted S.163, creating one of the clearer state-level crypto protection laws in the U.S. The measure was signed by Governor Henry McMaster on May 19 after passing the Senate 38-1 and the House 110-1.
The new law protects individuals and businesses that accept digital assets for lawful goods and services. It also protects the use of self-hosted wallets and hardware wallets, making self-custody a protected activity under state law.
The tax language is more precise than a full tax exemption. South Carolina cannot impose an additional tax, withholding, assessment or charge based only on the use of a digital asset as the payment method. Ordinary taxes can still apply if the same tax would have applied to a transaction made with U.S. legal tender.
That gives crypto payments tax neutrality at the state and local level. A merchant or customer should not face an extra state charge simply because a lawful transaction used Bitcoin, stablecoins or another digital asset instead of dollars.
State Agencies Barred From CBDC Use Or Testing
The law also blocks South Carolina government entities from accepting or requiring payment through a central bank digital currency. State agencies and local governing authorities are also barred from participating in any Federal Reserve or federal-agency CBDC test.
The CBDC provision places South Carolina firmly inside the anti-CBDC wing of U.S. crypto policy. Federal lawmakers have already debated similar restrictions through the Anti-CBDC Surveillance State Act, while several states have moved to limit government use of central bank digital currency systems before any retail U.S. CBDC exists.
The state definition excludes privately issued digital assets backed by legal tender or government treasuries. That means the CBDC ban is aimed at direct Federal Reserve or federal-agency digital money, not ordinary privately issued stablecoins that fall under the broader digital-asset category.
Mining, Nodes And Staking Receive Extra Protection
S.163 also protects parts of South Carolina’s blockchain infrastructure market. Industrial-zoned digital asset mining businesses cannot be singled out with restrictions that do not apply to other businesses in the same area, and local authorities cannot impose mining-specific sound limits beyond generally applicable noise rules.
Mining businesses still face grid-related duties. Operations must avoid placing additional stress on the electrical grid and must provide power-purchase information to the Public Service Commission when requested, including evidence that they can reduce consumption during grid-stress periods.
The law also narrows licensing risk for several technical activities. Mining, running blockchain nodes, developing blockchain software and exchanging one digital asset for another without legal tender or bank deposits do not trigger a money transmitter license by themselves. Businesses providing mining-as-a-service or staking-as-a-service are also not treated as offering securities under state law, although the Attorney General can still pursue fraud claims tied to fake mining or staking services.
The law gives South Carolina crypto users a stronger state-level shield for payments, self-custody and infrastructure activity while keeping fraud enforcement and grid oversight intact.
