The Mississippi Pass-Through Entity Tax Return is used by S corporations, partnerships, limited liability companies, limited liability partnerships, and electing pass-through entities to report Mississippi tax information for the year. It covers several important filing areas in one return, including S corporation franchise tax, composite income tax, electing pass-through entity income tax, tax credits, estimated payments, overpayments, penalties, and refund or balance due calculations. The form also collects basic business information such as the entity’s FEIN, legal name, DBA, mailing address, Mississippi Secretary of State ID, NAICS code, county code, and tax year dates. In addition to the tax calculation lines, the return asks for entity status details, including whether the return is amended, final, composite, 100 percent Mississippi, multistate apportioning, direct accounting, or Fee-In-Lieu. It also includes schedules for pass-through entities the business invested in, Q-Subs or disregarded entities connected to the business, and officers, owners, directors, or partners responsible for fiscal management. In simple terms, this return helps Mississippi calculate and document the state tax responsibilities of pass-through entities doing business in Mississippi.
How To File The Mississippi Pass-Through Entity Tax Return
Complete this return using the entity’s federal tax return information, Mississippi schedules, ownership records, income records, franchise tax calculations, credit schedules, estimated payment records, and any pass-through entity K-1 information. Enter all identifying information at the top of the return, check the correct entity and filing status boxes, and complete the tax calculation lines that apply to the entity. S corporations generally complete the franchise tax section. Composite returns and electing pass-through entity returns complete the income tax section. Then complete the payment, balance due, overpayment, penalty, and refund lines. If the entity issued 100 or more Mississippi K-1s, the return must be filed electronically. If mailing is required, use the mailing address shown on the return. Make sure all required schedules, K-1s, supporting statements, and signatures are included before filing.
How To Complete The Mississippi Pass-Through Entity Tax Return
Header Information
Form Year: Use this return for the correct tax year. This version is for the 2025 Mississippi Pass-Through Entity Tax Return.
Tax Year Beginning: Enter the first day of the entity’s tax year using the month, day, and year format.
Tax Year Ending: Enter the last day of the entity’s tax year using the month, day, and year format.
FEIN: Enter the entity’s Federal Employer Identification Number.
Legal Name And DBA: Enter the legal name of the entity. If the entity operates under a DBA name, include that name as well.
Address: Enter the entity’s mailing address.
City: Enter the city for the mailing address.
State: Enter the state for the mailing address.
Zip +4: Enter the ZIP Code, including the four-digit extension if available.
County Code: Enter the correct Mississippi county code for the entity.
Mississippi Secretary Of State ID: Enter the entity’s Mississippi Secretary of State identification number.
NAICS Code: Enter the NAICS code that best describes the entity’s main business activity.
Total Number Of Mississippi K-1s: Enter the total number of Mississippi K-1s issued by the entity.
Electronic Filing Requirement For 100 Or More K-1s: If the entity issues 100 or more Mississippi K-1s, the return must be filed electronically.
Check All That Apply
S Corporation, Federal 1120-S: Check this box if the entity files federally as an S corporation.
Partnership / LLC / LLP, Federal 1065: Check this box if the entity files federally as a partnership, LLC, or LLP on federal Form 1065.
Electing Pass-Through Entity: Check this box if the entity is making or reporting as an electing pass-through entity.
Check One
Composite Return: Check this box if the entity is filing a composite return for eligible owners or members.
Amended Return: Check this box if the entity is correcting or changing a previously filed Mississippi pass-through entity return.
Final Return: Check this box if this is the entity’s final Mississippi pass-through entity return.
100 Percent Mississippi: Check this box if all business activity is connected to Mississippi.
Multistate Apportioning: Check this box if the entity operates in more than one state and uses apportionment to determine the Mississippi share.
Multistate Direct Accounting: Check this box if the entity operates in more than one state and uses direct accounting for Mississippi income.
Fee-In-Lieu: Check this box if the entity is subject to a Fee-In-Lieu arrangement.
S Corporation Franchise Tax
This section applies to S corporations that must calculate Mississippi franchise tax. Round amounts to the nearest dollar.
Line 1: Taxable Capital: Enter taxable capital from Form 84-110, Line 18.
Line 2: Franchise Tax: Enter the franchise tax amount. The minimum tax is $25.
Line 3: Franchise Tax Credit: Enter the franchise tax credit from Form 84-401, Line 1.
Line 4: Net Franchise Tax Due: Subtract Line 3 from Line 2 and enter the result.
Composite / Electing Pass-Through Entity Income Tax
This section applies to composite returns and electing pass-through entity income tax calculations.
Line 5: Mississippi Net Taxable Income: Enter Mississippi net taxable income from Form 84-122, Line 32 for composite returns or Line 35 for electing pass-through entity returns.
Line 6: Income Tax: Enter the income tax calculated on the Mississippi net taxable income.
Line 7: Income Tax Credits: Enter income tax credits from Form 84-401, Line 3.
Line 8: Net Income Tax Due: Subtract Line 7 from Line 6 and enter the result.
Payments And Tax Due
Use this section to combine tax due, payments, overpayments, credits, penalties, and refund information.
Line 9: Total Franchise Tax And / Or Income Tax: Add Line 4 and Line 8. Enter the total franchise tax for S corporations and/or income tax for composite or electing pass-through entity returns.
Line 10: Overpayments From Prior Year: Enter any overpayment from a prior year that was credited to the current year.
Line 11: Estimated Tax Payments And Payment With Extension: Enter estimated tax payments made for the year plus any payment made with an extension.
Line 12: Credit For Tax Paid On An Electing Pass-Through Entity Tax Return: Enter the credit from Form 84-161, Line 3D. Attach K-1s received from electing pass-through entities when claiming this credit.
Line 13: Total Payments: Add Line 10, Line 11, and Line 12. Enter the total payments.
Line 14: Net Total Franchise Tax And / Or Income Tax: Subtract Line 13 from Line 9. Enter the result.
Line 15: Interest And Penalty On Underestimated Income Tax Payments: Enter the amount from Form 83-305, Line 19, or Form 80-320, Line 11 for composite partnerships only, if applicable.
Line 16: Late Payment Interest: Enter any late payment interest due.
Line 17: Late Payment Penalty: Enter any late payment penalty due.
Line 18: Late Filing Penalty: Enter any late filing penalty. The minimum income tax penalty is $100.
Line 19: Total Balance Due: If Line 9 is larger than Line 13, add Line 14 through Line 18 and enter the total balance due.
Line 20: Total Overpayment: If Line 13 is larger than Line 9 plus Line 15, subtract Line 9 and Line 15 from Line 13. Enter the result as the total overpayment.
Line 21: Overpayment Credited To Next Year: Enter the amount from Line 20 that the entity wants applied to next year.
Line 22: Overpayment To Be Refunded: Subtract Line 21 from Line 20. Enter the amount to be refunded.
Part I: Entity Information
Use this section to explain special filing situations, business activity details, audit status, and contact information.
Line 1: Final Return Reason And Effective Date: If this is a final return, enter the reason the return is final and the effective date.
Line 2: Sale, Merger, Incorporation, QSSS Election, Or SMLLC Conversion: If the entity was sold, merged, incorporated, elected to become a Qualified Sub-Chapter S Subsidiary, or converted to a Single-Member LLC, enter the name, address, and FEIN of the new existing corporation, the parent of the QSSS, or the owner of the SMLLC.
Line 3: Amended Return Reason: If this is an amended return, check the reason. Choose Mississippi Correction, Federal Correction, or Other.
Line 4: Federal Election To File As A Corporation: If the entity is a partnership or LLC, indicate whether a federal election has been made to file as a corporation by checking Yes or No.
Line 5: IRS Audit Status: Check the box if the company has been audited by the IRS. If audited, enter the year or years involved.
Line 6: Principal Business Activity In Mississippi: Enter the main business activity the entity conducts in Mississippi.
Line 6a: County Location In Mississippi: Enter the Mississippi county where the principal business activity is located.
Line 7: Principal Product Or Service In Mississippi: Enter the main product sold or service provided by the entity in Mississippi.
Line 8: Contact Person For This Return: Enter the name of the person who can answer questions about this return.
Line 8a: Location And Phone Number: Enter the contact person’s location and phone number.
Part II: Pass-Through Entity Schedule
Use this section to list all pass-through entities in Mississippi that the S corporation or partnership invested in during the tax year. Attach additional schedules if more space is needed.
Entity Name: Enter the legal name of the pass-through entity.
FEIN: Enter the Federal Employer Identification Number of the pass-through entity.
Address: Enter the address of the pass-through entity.
Entity Type: Enter the type of entity, such as S corporation, partnership, LLC, or LLP.
Part III: Q-Subs / Disregarded Entity Schedule
Use this section to list all qualified subchapter S subsidiaries and/or disregarded entities. Attach additional schedules if more space is needed.
Entity Name: Enter the name of the Q-Sub or disregarded entity.
FEIN: Enter the entity’s Federal Employer Identification Number.
Address: Enter the entity’s address.
Mississippi Operations, Y/N: Enter Yes if the entity has Mississippi operations. Enter No if it does not.
Part IV: Entity Officer Information
Use this section to list the owners, officers, directors, or partners who have responsibility for the fiscal management of the organization.
Officer Name And Title: Enter the name and title of each responsible owner, officer, director, or partner.
SSN: Enter the Social Security Number of the listed person.
Address: Enter the address of the listed person.
Ownership Percentage: Enter the person’s ownership percentage in the entity.
Signature And Paid Preparer Section
Complete the signature section before filing. The return is not complete without the required signature.
Officer Signature And Title: An authorized officer must sign the return and include their title.
Date: Enter the date the officer signs the return.
Business Phone: Enter the business phone number.
Return Discussion With Preparer Checkbox: Check this box if the Mississippi Department of Revenue may discuss the return with the preparer.
Paid Preparer Signature: If a paid preparer completed the return, the preparer must sign here.
Date: Enter the date the paid preparer signs the return.
Paid Preparer PTIN: Enter the paid preparer’s Preparer Tax Identification Number.
Paid Preparer Phone: Enter the paid preparer’s phone number.
Paid Preparer Address: Enter the paid preparer’s address.
City: Enter the paid preparer’s city.
State: Enter the paid preparer’s state.
Zip Code: Enter the paid preparer’s ZIP Code.
Declaration Statement: By signing, the officer and preparer confirm, under penalties of perjury, that they examined the return and related schedules and believe the return is true, correct, and complete based on the information available to them.
Mailing Information
Mail Return To: If the return is being mailed, send it to Department of Revenue, P.O. Box 23191, Jackson, MS 39225-3191.
Supplemental Pass-Through Entity Schedule
Use the supplemental page when the entity needs more room to report pass-through entities, Q-Subs, or disregarded entities.
Supplemental Page Blank Of Blank: Enter the page number and total number of supplemental pages.
FEIN: Enter the entity’s Federal Employer Identification Number on the supplemental page.
Pass-Through Entity Schedule, Entity Name: Enter the name of each additional Mississippi pass-through entity the S corporation or partnership invested in during the tax year.
Pass-Through Entity Schedule, FEIN: Enter the FEIN for each additional pass-through entity.
Pass-Through Entity Schedule, Address: Enter the address for each additional pass-through entity.
Pass-Through Entity Schedule, Entity Type: Enter the entity type for each additional pass-through entity.
Q-Subs / Disregarded Entity Schedule, Entity Name: Enter the name of each additional Q-Sub or disregarded entity.
Q-Subs / Disregarded Entity Schedule, FEIN: Enter the FEIN for each additional Q-Sub or disregarded entity.
Q-Subs / Disregarded Entity Schedule, Address: Enter the address for each additional Q-Sub or disregarded entity.
Q-Subs / Disregarded Entity Schedule, Mississippi Operations, Y/N: Enter Yes if the entity has Mississippi operations. Enter No if it does not.
Final Review Before Filing
Before filing the Mississippi Pass-Through Entity Tax Return, check that the tax year, FEIN, legal name, DBA, address, county code, Mississippi Secretary of State ID, NAICS code, and K-1 count are correct. Confirm that the correct entity type and filing status boxes are checked. Review Lines 1 through 22 carefully to make sure franchise tax, income tax, credits, payments, penalties, overpayments, and refunds are calculated correctly. Complete all entity information, pass-through entity schedules, Q-Sub or disregarded entity schedules, officer information, and signature sections. Attach all required schedules, K-1s, and supporting forms before submitting the return.