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Verified May 2026

How to Calculate Sales Tax in Aiken County, South Carolina

Step-by-step guide with current rates, filing rules, and exemptions verified March 2026

Current Aiken County Sales Tax Rate

Jurisdiction Rate
South Carolina State Sales Tax 6.000%
County Sales Tax 0.300%
Special District Tax 1.800%
Total Combined Rate 8.000%
← View full rate breakdown for Aiken County

How to Calculate Sales Tax in Aiken County

  1. 1

    Find the combined rate

    The combined sales tax rate in Aiken is 8.000%. This equals: South Carolina state rate of 6.000% + County 0.300%.

  2. 2

    Convert the percentage to a decimal

    8.000 ÷ 100 = 0.0800

  3. 3

    Multiply by your purchase amount

    Example: $100.00 × 0.0800 = $8.00 in sales tax

  4. 4

    Add tax to the original price

    $100.00 + $8.00 = $108.00 total cost

What's Taxable in South Carolina?

Most tangible personal property is taxable in South Carolina. Check with the South Carolina Department of Revenue for specific exemption categories.

Do You Have Nexus in South Carolina?

Economic Nexus Threshold

If your business has over $100,000 in annual South Carolina sales or 200 transactions, you are required to collect and remit South Carolina sales tax. This applies to out-of-state remote sellers too.

Expert Sales Tax Tips for Aiken

Out-of-State Sellers

Selling into South Carolina from out of state? Register before you cross the $100,000 threshold to avoid back taxes and penalties.

Frequently Asked Questions

File online at the South Carolina Department of Revenue website. Deadlines vary by filing frequency. Late filing typically incurs a penalty of 10–25% of unpaid tax.
Prescription drugs are commonly exempt in South Carolina. Check the Department of Revenue for a full exemption schedule.
Late sales tax filing in South Carolina typically results in a penalty of 10–25% of the unpaid tax amount, plus monthly interest charges. File on time to avoid these costs.
Yes. Submit a refund claim to the South Carolina Department of Revenue. Refunds are typically processed within 60–90 days of a valid claim.
Yes, if you exceed $100,000 in annual sales or 200 transactions in South Carolina, you must register and collect sales tax — regardless of where your business is based.
← Back to Aiken County Sales Tax Rates Use the Sales Tax Calculator →

Sales Tax Calculator

Using the current combined rate for Aiken.

Live Tool
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Sales tax

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Total due

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Effective rate:

Rounded to the nearest cent. Tax treatment of shipping and discounts can vary by state.

Sitewide Helper

Sales Tax Calculator & Compliance Helper

One compact utility block for tax calculation, reverse calculation, ZIP lookup, nexus checks, exemption guidance, and product taxability.

Advanced Sales Tax Calculator

Estimate tax with shipping, discounts, and exempt subtotal support.

Live Tool
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Rate applied

0.000%

Selected location

Sales tax

$0.00

Taxable base:

Total due

$0.00

Effective rate:

Rounded to the nearest cent. Tax treatment of shipping and discounts can vary by state.

Reverse Sales Tax Calculator

Work backward from the total paid to estimate the pre-tax price and tax amount.

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Pre-tax price

$0.00

Tax amount

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ZIP / City Sales Tax Lookup

Search by ZIP code, city, county, or state to find current combined rates and local breakdowns.

Economic Nexus Checker

Compare your state-specific sales activity against current nexus thresholds using existing site data.

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Nexus estimate

Should I Collect Sales Tax?

A fast intent-matching decision tree for businesses, marketplace sellers, and remote sellers.

Do you sell taxable goods or taxable services?

Do you sell into states outside your home state?

Have you crossed a nexus threshold in a destination state?

Do marketplaces handle most of your sales?

Do you have physical presence in the state?

Decision

Exemption Certificate Finder

Point buyers and sellers toward the right official portal and documentation checklist.

Certificate path

Typical checklist

Product Taxability Checker

Version 1 uses the categories already modeled in the current database and always links back to official verification.

State-aware estimate