Individual Income

INDIVIDUAL INCOME TAX ×

Phone: 1-844-898-8542
Email: IITax@dor.sc.gov

IIT Returns, previously due April 15, are now due July 15, 2020 to assist taxpayers during the COVID-19 outbreak. Learn more >

What is South Carolina Individual Income Tax?

South Carolina has a simplified income tax structure which follows the federal income tax laws. South Carolina accepts the adjustments, exemptions and deductions allowed on your federal tax return with few modifications. Your federal taxable income is the starting point in determining your state income tax liability. Individual income tax rates range from 0% to a top rate of 7% on taxable income. Tax brackets are adjusted annually for inflation.

New for 2019

2019 LEGISLATIVE UPDATE – A list of significant changes in tax and regulatory laws and regulations enacted during the 2019 legislative session is available from the SCDOR Policy Division. Review Information Letter 19-23 (IL19-23 PDF) and our Legislative Update tutorial.

CONFORMITY – South Carolina recognizes the Internal Revenue Code as amended through December 31, 2018, unless otherwise provided. If adopted Internal Revenue Code sections that expired on December 31, 2017 or during 2018 are extended, but were otherwise not amended by congressional act during 2019, these sections will also be extended for South Carolina Income Tax purposes.

INCREASE IN SOUTH CAROLINA DEPENDENT EXEMPTION (line w of the SC1040) – The South Carolina dependent exemption amount for 2019 is $4,190 and is allowed for each eligible dependent, including both qualifying children and qualifying relatives.

INCREASE IN MOTOR FUEL INCOME TAX CREDIT – The refundable Income Tax credit increased from 3 cents per gallon to 5 cents per gallon for 2019. Full or part-year resident taxpayers may claim the refundable credit for the lesser of the increase in South Carolina Motor Fuel User Fee they paid during 2019 or the preventative maintenance costs they incurred in South Carolina during the tax year. The credit is limited to two private passenger motor vehicles or motorcycles. To claim the credit, attach a completed I-385 to your return.

INCREASE IN EARNED INCOME TAX CREDIT – Full‐year residents may claim the South Carolina Earned Income Tax Credit. For 2019, the non‐refundable credit is equal to 41.67% of the Federal Earned Income Tax Credit allowed the taxpayer.

INCREASE IN TWO WAGE EARNER CREDIT – The maximum credit available for the Two Wage Earner Credit (claimed by a married couple filing jointly when both taxpayers have earned income taxed to South Carolina) has increased. For 2019, the credit is 0.7% of the lesser of $36,667 or the South Carolina qualified earned income of the taxpayer with the lower qualified income for the taxable year.

2019 AMENDED SC1040 – Beginning with tax year 2019, if you need to amend your return, file a new SC1040 and check the Amended Return box on the front. Complete the return as it should have been filed, including all schedules and attachments. Complete the SCH AMD, Amended Return Schedule, and submit it with your amended SC1040. Tax year 2019 returns can be filed electronically. For tax years 2018 and before, use the SC1040X to amend your return. Do not use the SC1040 with the amended checkbox or the SCH AMD. The SC1040X cannot be filed electronically. Find forms at dor.sc.gov/forms.

Filing Tips

Preparing for Tax Season

Tips for Choosing a Tax Preparer

Taxpayers should be aware that there are some tax preparers seeking to unlawfully take advantage of unsuspecting clients. The SCDOR urges South Carolinians to be cautious and informed when selecting tax preparation assistance.

The Internal Revenue Service offers the following tips to help taxpayers make an informed decision on selecting a tax preparer:

Check the preparer’s qualifications. All paid tax return preparers must have a Preparer Tax Identification Number (PTIN). You can use the IRS Directory of Federal Tax Return Preparers with Credentials and Select Qualifications to help find a preparer.
Check on the preparer’s history. Check to see if the preparer has a questionable history with the Better Business Bureau and check for any disciplinary actions and licensure status through the state boards of accountancy for certified public accountants; the state bar associations for attorneys; and the IRS Office of Enrollment for enrolled agents.
Ask about their service fees. Avoid preparers who base their fee on a percentage of your refund or those who claim they can obtain larger refunds than other preparers. When asking about a preparer’s services and fees, don’t give them tax documents, Social Security numbers or other information.
Ask to e-file. Make sure their preparer offers IRS e-file. The quickest way to get your refund is to electronically file and use direct deposit.
Make sure the tax preparer is accessible. Make sure you will be able to contact the tax preparer after the return has been filed, even after the April due date, in case you have questions.
Provide all records and receipts needed to prepare your return. Good preparers will ask to see a taxpayer’s records and receipts. They’ll ask questions to figure things like the total income, tax deductions and credits.
Never sign a blank return. Avoid tax preparers that ask you to sign a blank tax form.
Review the entire return before signing it. Before you sign your tax return, review it and ask questions. Make sure you understand everything and are comfortable with the accuracy of the return before you sign it. Make sure your refund goes directly to you, and you get a copy of your completed tax return.
Report Abusive Tax Preparers to the IRS. Most tax return preparers are honest and provide great service to their clients. However, some preparers are dishonest. People can report abusive tax preparers and suspected tax fraud to the IRS. Use Form 14157, Complaint: Tax Return Preparer. If a taxpayer suspects a tax preparer filed or changed their return without the taxpayer’s consent, they should file Form 14157-A, Return Preparer Fraud or Misconduct Affidavit.

Read the full IRS article here.

Dos and Don'ts for Filing Your Individual Income Tax

DO	Use the proper SC form. Make sure that the form you use is for the correct tax year.
DO	Include all Social Security Numbers (SSN) on the SC return and verify they are correct.
DO	Include all Individual Taxpayer Identification Numbers (ITIN) on the SC return and verify they are correct. If this is your first year filing a SC return after being assigned an ITIN, be sure to include a copy of the ITIN letter received from the Internal Revenue Service (IRS).
DO	Verify the mailing address is complete and accurate on the return.
DO	Mark your filing status. Generally, it should match the filing status marked on your federal return.
DO	If completing Schedule NR, attach to the SC1040. Be sure the NR indicator box is marked on page 1 of the SC1040.
DO	If you file a federal or state extension, be sure to mark the appropriate box on page 1 of the SC1040.
DO	Make sure the amount used on line 1 of the SC1040 is the federal taxable income.
DO	Attach SC1040TC if you are claiming a nonrefundable tax credit.
DO	Include SC Withholding amount on the proper line for W-2’s and/or 1099’s.
DO	Attach copies of all W-2’s and/or 1099’s to support the withholding amount claimed on the SC return.
DO	Complete the appropriate refund option on page 3 of the SC1040. If choosing the direct deposit option, verify the routing and account number are correct.
DO	If requesting a paper check, it will be mailed to the address that is shown on the return.
DO	Sign your return! Both spouses must sign a married filing joint return.
DO	Send all 3 pages of the SC1040. Be sure to include any additional state/federal schedules and documents required.
DO	Keep a complete copy of your SC return for your records.

DON'T	Use federal gross income on line 1 of the SC1040. (Use federal taxable income)
DON'T	Claim the two wage earner credit unless the filing status is married filing jointly.
DON'T	Claim state withholding paid to another state.
DON'T	Use an SC1040X to change or correct your 2019 return. Instead file a SCH AMD and a new SC1040 with the amended return box checked. (See New for 2019 above.)
DON'T	Send additional copies of your tax return. If you file electronically, you do not need to submit a paper copy.
DON'T	Contact the SCDOR if your refund was matched to a debt that has been reported to this agency by a claimant agency. Contact the claimant agency for information about the debt or to make an appeal.

Creating a Strong Password

Tips for Avoiding Fraud

Mailing Addresses:

Tax return mailing addresses are listed on the form. Please use the appropriate address, including the entire zip code.

Refunds or no tax due (SC1040/SC1040NR)	All balances due	Estimated Tax (SC1040ES), Extension (SC4868) or Voucher (SC1040V)	Correspondence
SC1040 Processing Center PO Box 101100 Columbia, SC 29211-0100	Taxable Processing Center PO Box 101105 Columbia, SC 29211-0105	South Carolina Department of Revenue IIT Voucher PO Box 100123 Columbia, SC 29202	South Carolina Department of Revenue Income Tax PO Box 125 Columbia, SC 29214-0400

Did you receive an Identity Verification Notice?

You may receive a letter from the SCDOR asking you to complete either the Identity Verification Quiz or Individual Code Verification after filing your return. This is just another step we are taking to ensure that fraudsters are not using your information to file a false return and steal your refund.

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