File Mississippi
State Business Tax Extension
Forms 83-180 and 80-106

What Forms does Mississippi require to apply for a Business
Tax Extension?

Based on the type of your business, the State of Mississippi requires you to use one of the following forms to request a business tax extension.

• Form 83-180 - For businesses operating as Corporations, S-Corporations, and Partnerships.
• Form 80-106 - For businesses operating as Fiduciaries.

When is the deadline to file Business Tax Extension with Mississippi?

Mississippi Corporate Tax Extension

• Mississippi State Corporate Income Tax Form 83-105 is due by the 15th day of the 4th month after the end of the taxable year. The deadline for Corporations operating on the calendar tax year is on April 15.
• To request an extension for Form 83-105, corporations are required to file Form 83-180 on or before the same date the business tax return
  is due.

Mississippi State Pass-Through Entity Tax Extension

• S Corporation & Partnerships are considered Pass-Through Entities in Mississippi State.
• Form 84-105, Mississippi Pass-Through Entity Tax Return, is due by the 15th day of the 3rd month following the end of the taxable year. For pass-through entities that follow the calendar tax year, the deadline is on March 15.
• To request an extension of this deadline, pass-through entities can file Form 83-180 on or before the same date the business tax return is due and get an automatic 6-month extension of time.

Mississippi State Fiduciary Tax Extension

• Form 81-110, Mississippi Fiduciary Income Tax Return is due by the 15th day of the 4th month following the end of the taxable year. The deadline for Fiduciaries operating on the calendar tax year is on
  April 15.
• The fiduciaries can file Form 80-106 on or before the same date the business tax return is due to request an extension of time to file their business tax return.

What information is required to file a Business Tax Extension
with Mississippi?

• Business Name and Address
• FEIN (Federal Employer Identification Number)
• Tax year beginning and end date
• Estimated Tax Payment

How to file Business Tax Extension with Mississippi using ExpressExtension?

You can file Mississippi business tax extension using ExpressExtension in 3 simple steps:

• Choose Form 83-180 (or) 80-106
• Fill in Form Details
• Download and mail the extension form to the State.

How do I pay my tax-due balance along with the Mississippi Business Tax Extension Form?

You can choose to pay your balance due along with your return by using any one of the following options:

• Online payment option offered by Mississippi State www.dor.ms.gov.
• Payment by check or money order along with or without return.