You will need to prepare and file an amended Mississippi tax form. Here's how:
Mississippi State Tax Amendment Forms (Download, Fill Out, Print Out, and Mail)
Fill out the Amended Individual Income Tax Return form for the corresponding tax year. Residents (taxpayers who maintain a permanent home in the state and returns there after periods of absence) should file the form for residents. Nonresidents or part-year residents should file the special form for them.
Resident Forms
Nonresident and Part-year Resident Forms
How Do I Check the Status of My Mississippi State Amended Tax Return?
You can call the Mississippi Department of Revenue at (601) 923-7000.
What Are the Penalties, Interest, and Fees Associated With Mississippi State Tax Amendment?
The state of Mississippi charges interest on overdue payments of tax at a rate of 1% per month. In addition, a late payment penalty is assessed and amounts to 0.5% per month and can't exceed 25%.
Where Do I Mail My Amended Mississippi Tax Return? - Mississippi Mailing Address:
If you expect a refund, mail your amended return to:
Department of Revenue
Post Office Box 23058
Jackson, MS 39225-3058
If you don't expect a refund or have to pay additional tax, mail your amended return to:
Department of Revenue
Post Office Box 23050
Jackson, MS 39225-3050
Mississippi Department of Revenue Phone Number: (601) 923-7000
Mississippi Department of Revenue
Where Do I Find More Mississippi State Tax Information?
How Do I Only File My Mississippi Tax Return?
Where is My Mississippi State Tax Refund?
Mississippi Tax Extension
Mississippi State Taxes
What If I Need to Fix My Accepted Federal Return?
Learn how to file a federal tax amendment.