Missouri Business Tax Extension LLC / Partnership – S Corporation – C Corporation – Fiduciary
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Connect with a TaxPro →Missouri Business Tax Extension – LLC / Partnership
Form MO-7004 | Missouri Application for Extension of Time to File • LLC / PartnershipMissouri LLC & Partnership Tax Extension
Missouri LLCs and partnerships file Missouri partnership returns with the Missouri Department of Revenue. Missouri accepts the federal Form 7004 for pass-through entities–no separate Missouri extension form is required to extend the LLC or partnership return from April 15, 2026 to October 15, 2026. All Missouri tax owed, however, must be paid by the original deadline.
How the Extension Works
File IRS Form 7004 before April 15, 2026. Missouri extends the LLC or partnership filing deadline to October 15, 2026 based on the federal extension. Pay any Missouri pass-through tax by April 15, 2026 through MyTax Missouri or mail to: Missouri Department of Revenue, P.O. Box 700, Jefferson City, MO 65105-0700.
Best Practices
- File IRS Form 7004 before April 15, 2026 to extend the Missouri LLC or partnership return to October 15, 2026.
- Pay Missouri pass-through tax by April 15, 2026 via MyTax Missouri or by mail.
- Confirm Missouri composite or withholding obligations for nonresident LLC members before April 15, 2026.
- File the completed Missouri LLC or partnership return by October 15, 2026.
Working with a Tax Professional
LLC / Partnership returns carry unique complexities – a licensed CPA or Enrolled Agent can navigate the details and ensure your Missouri return is filed accurately and on time.
- Get matched with a verified U.S.-based CPA or Enrolled Agent
- Upload your business documents via secure drag-and-drop
- Review your return with transparent, upfront pricing
- Your TaxPro files the Missouri return by October 15, 2026
How to Pay
Missouri requires online payment for tax amounts of $750 or more. Submit electronically via the Missouri Online Tax Extension Payment portal. For amounts under $750, complete Form MO-7004 | Missouri Application for Extension of Time to File and mail with your payment.
Missouri Online Payment Portal
Submit electronically through the Missouri Online Tax Extension Payment system. Required for all payments $750 and above.
Form MO-7004 | Missouri Application for Extension of Time to File by Check
Download Form MO-7004 | Missouri Application for Extension of Time to File and mail with your check or money order. Include your EIN and tax year on the check.
P.O. Box 700
Jefferson City, MO 65105-0700
Late Filing & Payment Penalties
| Penalty Type | Amount |
|---|---|
| Failure to File | 5% of unpaid tax per month, up to 25%. |
| Failure to Pay | 0.5% of unpaid tax per month. |
LLC / Partnership Quick Reference
| State Abbreviation | MO |
| Entity Type | LLC / Partnership |
| Extension Status | Automatic with approved IRS Form 7004 |
| Original Filing Deadline | April 15, 2026 |
| Extended Filing Deadline | October 15, 2026 |
| Payment Due | April 15, 2026 (100% of tax owed) |
| Payment Form | Form MO-7004 | Missouri Application for Extension of Time to File |
| Online Payment | Missouri Online Tax Extension Payment |
| State Agency | Missouri Department of Revenue |
| Failure to File Penalty | 5% of unpaid tax per month, up to 25%. |
| Failure to Pay Penalty | 0.5% of unpaid tax per month. |
Missouri Business Tax Extension – S Corporation
Form MO-7004 | Missouri Application for Extension of Time to File • S CorporationMissouri S Corporation Tax Extension
Missouri S corporations file Missouri S corporation returns with the Missouri Department of Revenue. Missouri accepts the federal Form 7004 for S corporations, extending the filing deadline from April 15, 2026 to October 15, 2026 without a separate Missouri form. Missouri S corporation tax owed must be paid by the original April 15, 2026 due date.
How the Extension Works
File IRS Form 7004 before April 15, 2026. Missouri extends the S corporation return to October 15, 2026 based on the approved federal extension. Remit Missouri S corporation tax by April 15, 2026 through MyTax Missouri or mail to: Missouri Department of Revenue, P.O. Box 700, Jefferson City, MO 65105-0700.
Best Practices
- File IRS Form 7004 before April 15, 2026 to extend the Missouri S corporation return to October 15, 2026.
- Pay Missouri S corporation tax by April 15, 2026 via MyTax Missouri or by mail.
- Determine whether Missouri composite return or nonresident withholding applies to your S corporation shareholders.
- File the completed Missouri S corporation return by October 15, 2026.
Working with a Tax Professional
S Corporation returns carry unique complexities – a licensed CPA or Enrolled Agent can navigate the details and ensure your Missouri return is filed accurately and on time.
- Get matched with a verified U.S.-based CPA or Enrolled Agent
- Upload your business documents via secure drag-and-drop
- Review your return with transparent, upfront pricing
- Your TaxPro files the Missouri return by October 15, 2026
How to Pay
Missouri requires online payment for tax amounts of $750 or more. Submit electronically via the Missouri Online Tax Extension Payment portal. For amounts under $750, complete Form MO-7004 | Missouri Application for Extension of Time to File and mail with your payment.
Missouri Online Payment Portal
Submit electronically through the Missouri Online Tax Extension Payment system. Required for all payments $750 and above.
Form MO-7004 | Missouri Application for Extension of Time to File by Check
Download Form MO-7004 | Missouri Application for Extension of Time to File and mail with your check or money order. Include your EIN and tax year on the check.
P.O. Box 700
Jefferson City, MO 65105-0700
Late Filing & Payment Penalties
| Penalty Type | Amount |
|---|---|
| Failure to File | 5% of unpaid tax per month, up to 25%. |
| Failure to Pay | 0.5% of unpaid tax per month. |
S Corporation Quick Reference
| State Abbreviation | MO |
| Entity Type | S Corporation |
| Extension Status | Automatic with approved IRS Form 7004 |
| Original Filing Deadline | April 15, 2026 |
| Extended Filing Deadline | October 15, 2026 |
| Payment Due | April 15, 2026 (100% of tax owed) |
| Payment Form | Form MO-7004 | Missouri Application for Extension of Time to File |
| Online Payment | Missouri Online Tax Extension Payment |
| State Agency | Missouri Department of Revenue |
| Failure to File Penalty | 5% of unpaid tax per month, up to 25%. |
| Failure to Pay Penalty | 0.5% of unpaid tax per month. |
Missouri Business Tax Extension – C Corporation
Form MO-7004 | Missouri Application for Extension of Time to File • C CorporationMissouri C Corporation Tax Extension
Missouri C corporations pay Missouri corporate income tax to the Missouri Department of Revenue. Missouri requires its own extension form–Form MO-7004–to move the C corporation filing deadline from April 15, 2026 to October 15, 2026. The federal Form 7004 alone does not extend the Missouri C corporation return.
How the Extension Works
File Missouri Form MO-7004 before April 15, 2026 to obtain the Missouri C corporation extension to October 15, 2026. Pay any Missouri corporate income tax owed by April 15, 2026 through MyTax Missouri or mail to: Missouri Department of Revenue, P.O. Box 700, Jefferson City, MO 65105-0700.
Best Practices
- File Missouri Form MO-7004 before April 15, 2026–the federal extension does not extend the Missouri C corporation deadline.
- Pay Missouri corporate income tax by April 15, 2026 through MyTax Missouri or by mail.
- Complete Missouri apportionment calculations before April 15, 2026 to support an accurate MO-7004 extension payment.
- File the completed Missouri C corporation return by October 15, 2026.
Working with a Tax Professional
C Corporation returns carry unique complexities – a licensed CPA or Enrolled Agent can navigate the details and ensure your Missouri return is filed accurately and on time.
- Get matched with a verified U.S.-based CPA or Enrolled Agent
- Upload your business documents via secure drag-and-drop
- Review your return with transparent, upfront pricing
- Your TaxPro files the Missouri return by October 15, 2026
How to Pay
Missouri requires online payment for tax amounts of $750 or more. Submit electronically via the Missouri Online Tax Extension Payment portal. For amounts under $750, complete Form MO-7004 | Missouri Application for Extension of Time to File and mail with your payment.
Missouri Online Payment Portal
Submit electronically through the Missouri Online Tax Extension Payment system. Required for all payments $750 and above.
Form MO-7004 | Missouri Application for Extension of Time to File by Check
Download Form MO-7004 | Missouri Application for Extension of Time to File and mail with your check or money order. Include your EIN and tax year on the check.
P.O. Box 700
Jefferson City, MO 65105-0700
Late Filing & Payment Penalties
| Penalty Type | Amount |
|---|---|
| Failure to File | 5% of unpaid tax per month, up to 25%. |
| Failure to Pay | 0.5% of unpaid tax per month. |
C Corporation Quick Reference
| State Abbreviation | MO |
| Entity Type | C Corporation |
| Extension Status | Automatic with approved IRS Form 7004 |
| Original Filing Deadline | April 15, 2026 |
| Extended Filing Deadline | October 15, 2026 |
| Payment Due | April 15, 2026 (100% of tax owed) |
| Payment Form | Form MO-7004 | Missouri Application for Extension of Time to File |
| Online Payment | Missouri Online Tax Extension Payment |
| State Agency | Missouri Department of Revenue |
| Failure to File Penalty | 5% of unpaid tax per month, up to 25%. |
| Failure to Pay Penalty | 0.5% of unpaid tax per month. |
Missouri Business Tax Extension – Fiduciary
Form MO-7004 | Missouri Application for Extension of Time to File • FiduciaryMissouri Fiduciary Tax Extension
Missouri fiduciary income tax returns for trusts and estates are filed with the Missouri Department of Revenue. Missouri accepts the federal fiduciary extension to move the filing deadline from April 15, 2026 to October 15, 2026. A separate Missouri fiduciary extension form is not required, but Missouri fiduciary income tax owed must be paid by April 15, 2026.
How the Extension Works
File a federal fiduciary extension before April 15, 2026. Missouri extends the fiduciary return deadline to October 15, 2026. Pay any Missouri fiduciary income tax by April 15, 2026 through MyTax Missouri or mail to: Missouri Department of Revenue, P.O. Box 700, Jefferson City, MO 65105-0700.
Best Practices
- File a federal fiduciary extension before April 15, 2026 to extend the Missouri fiduciary return to October 15, 2026.
- Pay Missouri fiduciary income tax by April 15, 2026 through MyTax Missouri or by mail.
- Estimate Missouri fiduciary tax based on trust or estate DNI before April 15, 2026 to support a complete extension payment.
- File the completed Missouri fiduciary return by October 15, 2026.
Working with a Tax Professional
Fiduciary returns carry unique complexities – a licensed CPA or Enrolled Agent can navigate the details and ensure your Missouri return is filed accurately and on time.
- Get matched with a verified U.S.-based CPA or Enrolled Agent
- Upload your business documents via secure drag-and-drop
- Review your return with transparent, upfront pricing
- Your TaxPro files the Missouri return by October 15, 2026
How to Pay
Missouri requires online payment for tax amounts of $750 or more. Submit electronically via the Missouri Online Tax Extension Payment portal. For amounts under $750, complete Form MO-7004 | Missouri Application for Extension of Time to File and mail with your payment.
Missouri Online Payment Portal
Submit electronically through the Missouri Online Tax Extension Payment system. Required for all payments $750 and above.
Form MO-7004 | Missouri Application for Extension of Time to File by Check
Download Form MO-7004 | Missouri Application for Extension of Time to File and mail with your check or money order. Include your EIN and tax year on the check.
P.O. Box 700
Jefferson City, MO 65105-0700
Late Filing & Payment Penalties
| Penalty Type | Amount |
|---|---|
| Failure to File | 5% of unpaid tax per month, up to 25%. |
| Failure to Pay | 0.5% of unpaid tax per month. |
Fiduciary Quick Reference
| State Abbreviation | MO |
| Entity Type | Fiduciary |
| Extension Status | Automatic with approved IRS Form 7004 |
| Original Filing Deadline | April 15, 2026 |
| Extended Filing Deadline | October 15, 2026 |
| Payment Due | April 15, 2026 (100% of tax owed) |
| Payment Form | Form MO-7004 | Missouri Application for Extension of Time to File |
| Online Payment | Missouri Online Tax Extension Payment |
| State Agency | Missouri Department of Revenue |
| Failure to File Penalty | 5% of unpaid tax per month, up to 25%. |
| Failure to Pay Penalty | 0.5% of unpaid tax per month. |
Extended? Your Missouri Business Return Deadline Is Coming Up.
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