Learn how to file sales tax online in South Carolina with step-by-step instructions including screenshots.
Let’s get right into the steps for filing sales tax in South Carolina.
The first step is to create an online account with the SCDOR website. This allows you to access services and submit returns securely.
Go to the SCDOR website and look for the "Log In" button, usually found at the top right. Next to this button is an option to "Sign Up." Click this to bring up the registration screen.
You will need to provide some basic information to create your account. This includes:
The system also asks you to create login credentials like a unique username and password.
After entering the details, the SCDOR sends a confirmation email. Open this and click the verification link inside to complete the signup. You can now access the online system using your new login credentials.
With account creation completed, businesses can log in and file returns.
Return to the SCDOR website and click the "Log In" button. Enter the username and password you created in Step 1.
After logging in successfully, you reach the MyDORWAY portal. This contains tools and information specific to your account. Look for and click on the "Accounts" tab.
In Accounts, find the "File Return" button.
This is where you can start filling out the sales tax form. Different filing frequencies like monthly, quarterly, or annual returns will be shown if available.
Now comes the part where you fill out the return with your tax numbers. Carefully enter the amounts in each section.
Select the zero-sales option if you did not collect any sales tax for the period. But if you made taxable sales, you need to self-report the amounts.
In the state tax section, enter your gross sales and allowable deductions. The system automatically calculates the net taxable sales amount. It also computes the state sales tax you owe based on the 6% statewide rate.
If you made sales in different South Carolina counties, enter the county-wise breakup of taxable sales. The return includes county tax boxes specific to the locality where the sale happened.
As needed, expand sections to enter details on local taxes. For example, some counties levy additional education sales taxes.
Enter the education tax collected separately under its labeled section.
The SCDOR system allows saving draft returns to be completed later.
If needed, use the save draft option and take note of the system-generated email confirmation.
To continue filing, open the email draft link on the same device.
Once all tax details are entered in the return, the next step is payment. You can pay the sales tax balance due directly on the website.
Before submitting payment, thoroughly review your return to ensure all details entered are accurate. Check tax rates match the jurisdiction. Recheck calculations done by the system as well.
The SCDOR provides electronic payment options like ACH debit and credit cards. Based on convenience, choose the payment method you prefer. Take note of any fees that apply based on the option.
Carefully enter the payment information like bank account or card details. Ensure sufficient funds are available for the tax amount due to avoid declined transactions or short payments.
As a final authorization, the system asks you to input the login password before processing payment. Enter the password and click submit to complete filing and payment.
The last step is to finalize and wrap up return filing for your records.
Once payments are processed successfully, you reach a confirmation page. Be sure to print or save the confirmation receipt for your documentation. It contains key details like filing period, transaction ID, and more.
Additionally, check the registered email inbox. The SCDOR system sends an official copy of the processed return via email after payments are completed. Save this in digital records as well.
Whether filed online or on paper, sales tax returns must be retained for a minimum period. In South Carolina, returns and related documents must be kept for at least four years.
The South Carolina sales tax rate in 2026 is 6%. This comprises a base rate of 6% with no additional local rates. The total tax rate is 6% statewide. However, some counties may impose a 1% tax.
How often should I file South Carolina sales tax returns?
Filing frequency depends on your sales tax liability. Large retailers file monthly, while smaller businesses can file quarterly or annually. The SCDOR assigns filing periods based on your expected tax amounts.
Can I apply for an extension to file the return?
South Carolina does not allow filing extensions for sales tax returns. They need to be filed by the due date to avoid penalties.
What are the penalties for late filing or payment?
Late returns or payments incur penalties—5% per month up to 25% of taxes due. Interest also starts accruing if there are outstanding taxes owed.
How long do I need to retain sales tax returns and records?
South Carolina mandates keeping sales tax returns and related documentation for at least four years. Records can be stored digitally or physically.
Do I need to collect sales tax on online orders from SC customers?
Retailers with nexus in South Carolina must collect and remit sales tax on all orders from SC customers, including online orders. Out-of-state sellers without nexus can voluntarily register to collect SC sales tax. Note that SaaS is taxable in SC.
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