Sales Tax in Seneca, South Carolina in 2025

We'll walk you through how the sales tax rate is determined for Seneca and address some common questions you may have. We'll also cover how to collect, audit, and remit sales tax in Seneca.

Plus, we’ll share the best solution that will ensure you are always compliant across the entire sales tax lifecycle.

Disclaimer: Our sales tax data is updated on a quarterly basis. 

Seneca Sales Tax Rate 2025

For most cities in South Carolina, you have to pay local sales tax between 1.000% and 0.000%.

But Seneca is an exception. Businesses in Seneca only need to pay the state sales tax of 6.000% and no additional local taxes.

This rate applies to the following zip codes in Seneca:

29672, 29678

How Does the Seneca Sales Tax Compare to the Rest of South Carolina?

Seneca is among the cities with the lowest sales tax rate (6.000%) in the state of South Carolina. It is 3.000% lower than South Carolina’s highest rate, which sits at 9.000% and can be found in cities like St. Stephen.

To give you a better idea, here’s a comparison of Seneca sales tax rates with a few other cities in South Carolina:

City	Sales Tax Rates
Seneca	6.000%
Greer	7.000%
Union	7.000%
Seneca	6.000%
Lynchburg	8.000%
St. Stephen	9.000%

You can also compare the sales tax rate of Seneca against the South Carolina cities closest in population size:

• Hardeeville's sales tax rate is 7.000%-8.000%
• Laurens's sales tax rate is 8.000%

What Creates Sales Tax Nexus in Seneca?

Seneca shares the same sales tax nexus rules as South Carolina. 

Read More: Check out this detailed guide on Sales Tax in South Carolina.

You have sales tax nexus in Seneca if you fulfill any of the these conditions:

• Physical nexus: Businesses with offices, distribution houses, sale houses, warehouses, or other places of business. 
• Employees: Businesses with any agent operating within South Carolina under the retailer’s or subsidiary’s authority.
• Economic nexus: Businesses whose gross revenue exceeds $100,000 in the previous or current calendar year.

Learn more about sales tax nexus and when you’re required to collect sales tax.

What Products Are Exempt from Seneca Sales Tax?

Seneca doesn't have any special exemptions and follows the same sales tax rules as South Carolina.

The following items are exempt from sales tax in Seneca:

• Medicine and prosthetic devices sold by prescription.
• Insecticides, chemicals, fertilizers, soil conditioners, seeds, seedlings, and nursery stock used for farming and agricultural production. 
• Water supplied by public utilities and designated non-profit corporations.

Who Needs a Sales Permit in Seneca?

Any retailer selling, leasing, or renting tangible personal property in Seneca should collect sales tax. 

How to Collect Sales Tax in Seneca

South Carolina follows destination-based sales tax sourcing for both in-state and out-of-state businesses, which also applies for Seneca. This means that if you sell to a South Carolina resident, you must apply the sales tax rate based on the buyer’s shipping address.

Learn more about origin-based and destination-based sales tax sourcing here.

How to File and Pay Sales Tax in Seneca

You can file Seneca sales tax returns using the following methods:

• Automated: Let Zamp handle your South Carolina sales tax filing and remittance so you won’t ever have to deal with a sales tax return.
• Online: Taxpayers with a tax liability of $15,000 or more per filing period should file and pay electronically via the MyDORWAY website.
• Offline: Taxpayers whose tax liability is less than $15,000 should file Form ST-389 with your State Sales & Us​e Tax Return (ST-3).