South Carolina state tax filing

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$0Investments and rental income
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  • Import prior year information
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South Carolina tax details

The South Carolina Department of Revenue made very few changes for the 2025 tax year:

The dependent exemption amount increased from $4,790 to $4,930.

2025 South Carolina tax forms

These are the supported South Carolina state tax forms on FreeTaxUSA:

  • Form SC1040
    South Carolina Individual Income Tax Return

  • Form SC1040TC
    South Carolina Tax Credits

  • Form SC1040-V
    South Carolina Individual Income Tax Payment Voucher

  • Form SC1040ES
    South Carolina Individual Declaration of Estimated Tax

  • Schedule AMD
    South Carolina Amended Return Schedule

  • Form SC8453
    SC Individual Income Tax Declaration for Electronic Filing

  • Schedule NR
    South Carolina Nonresident Schedule

  • Schedule TC-38
    SC Solar Energy, Hydropower, or Geothermal Credit

  • Schedule TC-60
    South Carolina Earned Income Tax Credit

  • Form I-319
    South Carolina Tuition Tax Credit

  • Form I-330
    South Carolina Contributions for Check-Offs

  • Form I-333
    South Carolina Anhydrous Ammonia Additive Credit

  • Form I-334
    South Carolina Milk Credit

  • Form I-360
    South Carolina Classroom Teacher Expenses Credit

  • Form 4868
    SC Request for Extension of Time to File

Frequently asked questions

2025 South Carolina filing deadlines

Keep these South Carolina state deadlines in mind as you do your taxes.

  • E-Filed tax returns
    Due by

  • Mailed tax returns
    Due by April 15, 2026

  • South Carolina tax extension
    If you expect a refund, your state extension is automatic with a federal extension.
    If you expect to owe SC taxes then submit Form SC4868 with payment.
    Due by April 15, 2026

  • Electronic income tax payment
    Due by

  • Mailed income tax payment
    Due by April 15, 2026

  • Tax returns for extension filers
    Due by October 15, 2026

2025 South Carolina refunds

Ways to receive your refund

Get your South Carolina refund in your bank account, mailed as a paper check, or put it towards next year's South Carolina taxes.

Refund status for e-filed tax returns

You can expect your refund to move through the review process within 6-8 weeks from the date you filed.

Refund status for mailed tax returns

It may take more time for your refund status to update, but processing for most refunds is expected to take 6-8 weeks.

How to check your refund status

Check your SC refund status online at https://dor.sc.gov/refund/
Call the South Carolina Taxpayer Service Center at 844-898-8542

2025 South Carolina state tax payments

South Carolina has many income tax payment options. Find the option that works best for you below.

Pay electronically

You can use this payment option when you e-file with us.

Pay with a card

Visit dor.sc.gov/pay to pay using a credit card.

Pay by mail

If mailing your tax return, include your check or money order with your return. Do not submit your payment separately with Form SC1040-V.

If you e-file your tax return, mail in a check or money order with Form SC1040-V.

If you filed an extension, mail in your extension tax payment with Form SC4868.

All payments are due by April 15, 2026 whether or not an extension was filed.

2025 South Carolina extension

An extension extends the time you have to file your return by up to 6 months. If you need to pay taxes, you are required to pay the amount due by April 15, 2026.

You need to pay 90% of your taxes by April 15, 2026. If you pay late, you will be charged a late penalty and interest on any unpaid taxes.

If you expect a refund from South Carolina:

Automatic with an accepted federal extension.

If you expect to owe South Carolina taxes:

We now offer free electronic filing for your South Carolina extension request and payment. You can also pay your balance due on the South Carolina free tax portal, MyDORWAY. Select "Individual Income Tax Payment" to get started. Your credit card or electronic check payment on MyDORWAY automatically submits your filing extension request. No additional form or paperwork is required. Or, you can submit Form SC4868 with payment by April 15, 2026.

If your federal extension is not accepted, a South Carolina extension can be requested with Form SC4868.

South Carolina prior year taxes

Even though the deadline has passed, you can still prepare South Carolina taxes for prior years. Many people who file late tax returns have refunds waiting for them. We'll help you prepare and mail your federal and state tax returns.

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