Tax rate by region South Carolina

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The information provided on this page is intended for general informative purposes only. It should not be interpreted as tax advice, nor is it meant to be. For advice on your particular tax responsibilities, consult with an experienced tax expert. PayPro Global does not assume any responsibility for any action taken or not taken based on the information presented here.

SaaS Sales Tax in South Carolina: A Comprehensive Guide for Businesses

In South Carolina, SaaS (Software as a Service) is taxable. This means if you sell SaaS to customers in South Carolina, you need to collect and remit sales tax.

The state sales tax rate is 6%, but there are also local sales taxes, so the total rate can be higher depending on the buyer’s location. It’s important to determine if you have sales tax nexus in South Carolina, which means you have a significant presence in the state that triggers the obligation to collect sales tax.

If you’re selling SaaS in South Carolina, make sure to register with the state’s Department of Revenue and familiarize yourself with their sales tax rules.

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South Carolina

South Carolina’s top income tax rate is now 6.4%, as part of ongoing efforts to improve the state’s economic competitiveness.

Official government link: SC Department of Revenue

6.00%

E-products and services VAT/Sales tax rate

Reverse charge mechanism for B2B sales

Not applicable in the US

Tax ID validation required

Yes

When do you have to register

If you exceed $100,000 in sales.

Online registration possible

Yes

Local representative needed

Yes

Registration procedure

Register with the South Carolina Department of Revenue to obtain a retail license for sales tax.
File Form SC1120 (South Carolina Corporate Income Tax Return) if earning South Carolina-source income.
Appoint a South Carolina registered agent if necessary

List of digital and electronic services liable for tax

SaaS, video games, digital products

Penalties

5% of unpaid tax for each month, max 25% (Late Filing); 10% of unpaid tax after 30 days (Late Payment)

Registration threshold

$100,000.00

Filing interval

Monthly, Quarterly, or Annually

Filing deadline

20th of the month

E-invoicing requirements

No state-wide e-invoicing mandate

Record keeping

Income tax returns and supporting documents: 3 years minimum, 7 years recommended

How-To Guides: South Carolina SaaS VAT

Step: 1 Threshold

Businesses and remote sellers need to collect sales and use tax in South Carolina if they have either a physical or economic nexus in the state.

 

A business has a physical nexus when it has a tangible presence or activity in a state. However, economic nexus is based on whether or not a business has met the economic threshold requirements for total revenue or sales in the state.

 

Economic nexus if gross revenue > $100,000 from sales into South Carolina in the current or prior calendar year; registration for Retail License mandatory once threshold met.

Step: 2 Business Registration

Register for a Sales & Use Tax Retail License via the MyDORWAY portal on the South Carolina Department of Revenue website; one-time fee ~$50 per location; this acts as your sales tax permit.

Step: 3 TIN/VAT Number

You will need a Federal Employer Identification Number (FEIN). The SCDOR issues a Retail License number once registered and provides your tax account identification.

Step: 1 Standard Rate

Statewide base sales & use tax rate of 6% on taxable transactions (digital services/SaaS) delivered into South Carolina; additional local option taxes may apply (up to ~3%, depending on the county).

 

Step: 2 Rate Formula

To calculate your tax amount, consider the following formula:

 

Tax Amount=Net Price×Sales Tax Rate

(E.g., SaaS subscription price × 6% + any local rates)

Step: 3 Reverse Charge (B2B)

There is no reverse charge mechanism for sales/use tax in U.S. states like South Carolina; the seller must collect sales tax once nexus is established.

Step: 1 Selling B2C

All taxable sales of SaaS (access/use of hosted software) delivered to South Carolina consumers (including individuals) are treated the same for sales tax and subject to the applicable combined rate.

Step: 2 Selling B2B

Sales to business customers are also taxable once nexus exists; no separate reverse charge rule applies.

Step: 3 Invoice Requirements

Invoices should include:

  • seller name and Retail License number
  • date
  • invoice/transaction number
  • buyer location (to determine applicable tax)
  • description of SaaS service
  • price before tax
  • tax amount
  • total amount
  • any applicable local tax jurisdictions to support calculation.

Step: 1 Filing Interval

Taxes are usually monthly, quarterly, or annually depending on volume and SCDOR approval (monthly common for remote sellers).

Step: 2 Filing Deadline

Sales & use tax returns generally due by the 20th of the month following the reporting period.

Step: 3 Submission

File and pay via the MyDORWAY online portal (electronic filing required if tax liability ≥ $15,000 per period).

Step: 4 Record Keeping

Keep copies of returns, invoices, exemption certificates and related tax records for several years (minimum recommended ~3–4+ years per general business tax practice).

PayPro Global Solution: Simplified Registration & Fiscal Representation

Navigating South Carolina’s VAT registration and fiscal representation can be daunting. PayPro Global acts as your Merchant of Record, handling these complexities, including VAT registration and fiscal representation where needed, so you can focus on your business.

Learn more about our MoR services.

FAQ

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