South Carolina merchant services

Credit card processing and merchant services in South Carolina

South Carolina has no surcharge statute we've found, and its counties can add a local sales tax with voter approval. Get the county rate right first, then decide whether a card fee is worth it.

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Card surcharges

Surcharging allowed

South Carolina has no surcharge statute we've found; network caps and the debit card ban set the limits.

Sales tax

6% state rate, plus local

Last checked

October 6, 2026

South Carolina's Department of Revenue lists the statewide sales and use tax rate as 6% and says counties may add a 1% local sales tax if their voters approve it. So the rate at your register depends on the county you're in, and a second location in another county may need a different tax code. Check your county's current rate with the Department before you program a terminal.

Some of the state's fastest growth is along the North Carolina line. Fort Mill, about 20 miles from downtown Charlotte, grew 6.8% between 2024 and 2025 to 38,673 residents, according to the Census Bureau's Vintage 2025 city estimates. That was the fastest growth of any city of 20,000 or more in the Charlotte metro and 20th in the nation. If you sell to customers on both sides of the state line, ask your accountant how each state's sales tax applies before you set up online checkout.

On surcharges, South Carolina leaves it to the card networks; we know of no state statute on them. Visa limits a surcharge to 3% or your merchant discount rate, Mastercard to 4% or your average effective rate, and both prohibit surcharging debit and prepaid cards. On a $75 sale, 3% is $2.25: real money over a year of tickets, and also something a regular customer will notice.

Clearo prices on interchange-plus, with no long-term contract or cancellation fee and a dedicated rep for every account. Our surcharging program handles disclosure and setup if you want one, and a free statement review tells you whether you need one.

What South Carolina merchants should know

Credit card surcharges in South Carolina

We haven't found a South Carolina statute that bans or caps credit card surcharges, and the 2016 NCSL table lists none. The card network rules apply:

  • Visa: in South Carolina, keep the surcharge to your merchant discount rate or 3%, whichever is lower, and notify your acquirer 30 days before you begin.
  • Mastercard: South Carolina businesses may add no more than their average effective merchant discount rate for Mastercard credit or 4%. Mastercard says merchants currently don't have to register their intent to surcharge.
  • No surcharge on debit or prepaid cards, and disclosure at the entrance, at checkout and on the receipt.

Sources: National Conference of State Legislatures, Credit or debit card surcharges statutes (2016 table); Visa, U.S. Merchant Surcharge Q and A (PDF); Visa, Credit card processing fees and interchange rates; Mastercard, Merchant surcharge rules (US); Mastercard, Merchant surcharge disclosure form page

State and county sales tax

The Department of Revenue lists the statewide sales and use tax rate as 6% and says retail sales are generally subject to sales tax. Counties may add a 1% local sales tax if voters in the county approve it, and many levy other local taxes too: the Department's ST-500 chart, effective May 1, 2026, puts Charleston County's total at 9%.

Confirm your county's current local rate with the Department before you set up your POS, and again for each new location.

Sources: South Carolina Department of Revenue, Sales tax; South Carolina Department of Revenue, ST-500: Local tax designation by county, effective May 1, 2026 (PDF)

Common questions

Can South Carolina businesses add a credit card surcharge?

Yes. We know of no South Carolina statute on surcharges, so you follow Visa and Mastercard: 3% or your cost on Visa credit, 4% or your cost on Mastercard credit, nothing on debit or prepaid cards, and notice at the entrance and checkout plus a receipt line. A $75 sale at 3% carries a $2.25 fee.

What sales tax rate do I charge in South Carolina?

The Department of Revenue lists the statewide rate as 6%, and counties may add a 1% local sales tax with voter approval. Some counties stack other local taxes on top: Charleston County totals 9%. Your rate depends on your county. Check the Department's current local rates before you set up your terminals or online checkout.

Do I need to notify anyone before surcharging?

For Visa, yes: give your acquirer notice at least 30 days before you start. Mastercard says it isn't currently requiring merchants to register while it revises its rules. Your processor can tell you what it needs, and our surcharging program covers the compliance steps.

Can I go cash-free in South Carolina?

We haven't found a statewide South Carolina law that requires businesses to accept cash, but check your city or county before you stop taking it. Going card-only puts every sale through processing, which makes your rate matter more, so look at your pricing first.

Does Clearo work with businesses near Charlotte on the South Carolina side?

Yes. We work with merchants in both states remotely. The rules on this page apply to your South Carolina locations, and our Charlotte page covers Mecklenburg County's 8.25% rate if you also sell there.

Disclaimer: general information, not professional advice

This page is general educational information, not legal, tax, accounting or financial advice. Rules and rates vary by place and change, so confirm them with the official source and a qualified professional before you act. Full terms are in our Terms of Service.

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