South Carolina sales tax rates 2026: Calculator, nexus, and due dates

South Carolina sales tax rates by city and county

South Carolina applies sales tax at both the state and local level. The 6.00% state base rate applies statewide, and counties may add local option taxes up to 3.00%. This means the combined rate varies depending on where your customer receives the product.

Because South Carolina is a destination-based state, you charge the rate based on where your customer receives the product, not where your business is located. South Carolina centralizes filings through the Department of Revenue, so you file one return regardless of how many counties you sell into.

Major South Carolina cities and their 2026 combined rates:

South Carolina sales tax calculator

Can’t find your city? Use our South Carolina sales tax calculator to look up the exact sales tax rate for any South Carolina address.

TaxCloud’s sales tax calculation engine calculates to the rooftop level — because South Carolina rates vary by county, and even neighboring cities can have different combined rates.

South Carolina nexus thresholds

Every business with customers in South Carolina is subject to nexus laws. You are required to register and collect sales tax if you trigger “nexus” through a physical presence in the state or by exceeding specific economic thresholds as a remote seller.

South Carolina economic nexus

You will trigger South Carolina economic nexus if you exceed the following thresholds in the current or previous calendar year:

• Sales threshold: $100,000 in total gross sales (including marketplace sales).
• Transaction threshold: None.

South Carolina physical nexus

You will trigger South Carolina physical nexus (and must register from dollar one) if you have:

• Physical presence: An office, warehouse, or place of business in South Carolina
• Personnel in South Carolina: Employees, contractors, or representatives operating in the state
• Inventory in South Carolina: Storing goods within the state
• Business activities: Agents or representatives soliciting business on your behalf

South Carolina sales tax permit registration

Once you trigger nexus, you must register with the South Carolina Department of Revenue before you can legally collect sales tax.

Operating without a permit after crossing the threshold exposes you to back taxes, penalties, and interest from the date nexus was established — not the date you registered.

1. Gather info: You’ll need your FEIN, estimated sales, business structure details, and bank account information.
2. Submit: Use the South Carolina Department of Revenue MyDORWAY portal to apply for your Seller’s Permit.
3. Note your effective date: South Carolina requires you to begin collecting sales tax on the date nexus was triggered — not the date you registered. If there’s a gap, you may owe back taxes for that period.

If you have questions about your South Carolina registration or compliance history, TaxCloud’s U.S.-based support team typically responds within 2 hours and can review your setup directly.

South Carolina sales tax calculation rules

South Carolina’s sales tax system combines a statewide base rate with county-level local option taxes. The total rate depends on your customer’s delivery address, not your business location. Although local taxes vary by county, reporting is centralized through the South Carolina Department of Revenue.

What is taxable in South Carolina?

Taxability in South Carolina is determined by how a product is classified under state law. Below is a high-level summary of how major categories are generally treated for 2026:

• Tangible personal property: Most physical goods are taxable unless a specific exemption applies.
• SaaS, software, and digital products: South Carolina generally taxes digital goods (eBooks, music) and Software as a Service (SaaS).
• Food & groceries: South Carolina typically exempts unprepared food and grocery staples. However, prepared or heated food sold for immediate consumption is generally taxable.
• Clothing: Clothing and footwear are generally taxable at standard rates, with exceptions for the August sales tax holiday.

What is tax exempt in South Carolina?

Below is a high-level summary of items that are generally tax-exempt in South Carolina:

• Essential exemptions: South Carolina provides specific exemptions for items such as unprepared food and prescription drugs.

South Carolina sales tax return due dates and filing frequency

Filing frequency is assigned by the South Carolina Department of Revenue based on your reported or estimated sales volume. In South Carolina, returns are generally due on the 20th of the month following the reporting period.

Critical 2026 compliance notes:

• Electronic filing requirement: Sales & Use taxpayers whose South Carolina tax liability is $15,000 or more per filing period must file and pay electronically.
• Zero-return requirement: If you are registered but had no taxable sales during the reporting period, you must still file a return to avoid penalties.
• Local option taxes: County-level local taxes are reported on the same return as the state tax. Separate local filings are not required.
• Marketplace facilitator rules: Marketplace facilitators typically collect and remit tax on your behalf, but marketplace sales still count toward your economic nexus threshold.

South Carolina and the SST program

No, South Carolina is not a member of the Streamlined Sales Tax (SST) program.

However, because TaxCloud is a Certified Service Provider of the SST Program, we can save your business time and money on state registration and filing costs in 24 SST-member states — and handle your South Carolina filing.

Calculate your potential tax filing savings through the SST program here.