Table of Contents

1099 E-Filing: South Carolina

Nina Tchistiakova Updated by Nina Tchistiakova

Due date

January 31

E-filing threshold

Must E-file if 10 or more

Filing options

Electronic filing

Forms to file

1099's with state withholding W-2G, 1099-MISC, 1099-NEC, and 1099-R

To submit other 1099 file types to the SCDOR, you must submit paper copies directly to the SCDOR along with the WH-1612.​

Transmittal form

A transmittal form is not required.

Required file name

SC1099_XX.txt where XX is the tax year.

E-filing website

MyDORWAY.dor.sc.gov

Contact

Brian Vrana

Email: WithholdingTax@dor.sc.gov

Submitting files

SC accepts electronic filing of corrected 1099 information.
SC electronic filing of W-2 or 1099 information is for the current year and four prior years

If you do not already have a MyDORWAY account, create one at dor.sc.gov/MyDORWAY-signup to begin submitting forms online. 

Log into MyDORWAY, click the More tab, and select either Upload W-2s or Upload 1099s.

MyDORWAY accepts the following file types in addition to the standard W-2: W-2c, W-2G, 1099-R, 1099-NEC, and 1099-MISC.

How to File an Extension

If you need additional time to file W-2 or 1099 forms, you can request a 30-day extension in writing to

the SCDOR.

You must send a letter to the SCDOR to request an extension. The letter must include your reason for requesting an extension, along with the following information:

● Tax year

● FEIN

● Withholding account file numbers

● Business mailing address

● Contact person’s name, phone number, and email address

● Verification of federal extension approval

Mail this letter to:

SCDOR, Withholding, PO Box 125, Columbia, SC 29214-0400

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