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

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With South Carolina’s current economic efforts focused on enhancing competitiveness, businesses operating within the state, including those in the SaaS industry, must prioritize tax compliance. This guide provides a detailed overview of SaaS sales tax in South Carolina, empowering businesses to navigate this essential aspect of their operations effectively.

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Understanding the fundamentals of SaaS sales tax in South Carolina is crucial for businesses to ensure compliance and avoid potential financial penalties. Let’s delve into the key aspects, including the standard VAT rate, any applicable exemptions, and critical compliance requirements.

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