Setting Up a Business Partnership in Missouri (2026)
Reviewed by DocDraft Legal Team · Missouri · Last updated 2026-05-18
Going into business together in Missouri starts with the 1914 Uniform Partnership Act, which sets out when a partnership exists; section 358.310 sets out when it ends. An initial application by a partnership to register a limited liability partnership expires one year after the date of registration unless renewed. The sections below detail the Missouri formation rule, partner-authority default, LLP and LP filings, partnership tax return, and periodic report.
Key Considerations
Missouri's partnership code is the 1914 Uniform Partnership Act. Missouri Uniform Partnership Law, codified at RSMo Chapter 358 (sections 358.010 et seq.). Missouri retains the 1914 UPA framework (with modifications). On the question of state filing, No state formation filing required. Statement of partnership authority may be filed under state UPA. (consult the state code)
If the partners want liability protection, the form matters. $55 for two partners; $80 for three partners or $105 for 4 or more partners. $100
Recurring obligations track two channels in Missouri: state tax filing and the annual or biennial report. State partnership return administered by the state revenue department. Federal counterpart: IRS Form 1065. (consult the state code) An initial application by a partnership to register a limited liability partnership expires one year after the date of registration unless renewed. Thereafter, a renewal is required annually.
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Relevant Documents
Missouri filers operating under Missouri Uniform Partnership Law, codified at RSMo Chapter 358 (sections 358.010 et seq.). Missouri retains the 1914 UPA framework (with modifications) should expect to handle: a partnership agreement; the LLP or LP registration form ($55 for two partners; $80 for three partners or $105 for 4 or more partners., $100); the state partnership tax return (State partnership return administered by the state revenue department. Federal counterpart: IRS Form 1065. (consult the state code)); the annual or biennial entity report (An initial application by a partnership to register a limited liability partnership expires one year after the date of registration unless renewed. Thereafter, a renewal is required annually.); and the dissolution statute on wind-up (RSMo section 358.310 (causes of dissolution)).
Buy-Sell Agreement
A contract that outlines what happens to a partner's share of the business if they die, become disabled, retire, or wish to sell their interest in the partnership.
Partnership Agreement
A comprehensive contract that outlines the rights, responsibilities, and obligations of all partners, including profit sharing, decision-making authority, capital contributions, dispute resolution, and dissolution procedures.
Partnership Capital Contribution Agreement
A document that specifies the initial and ongoing capital contributions of each partner, including cash, property, services, or other assets.
Partnership Operating Procedures
An internal document that details day-to-day operations, management responsibilities, and standard procedures for the partnership business.
Relevant Laws
Missouri Uniform Partnership Law (Chapter 358)
This is the primary law governing partnerships in Missouri. It defines what constitutes a partnership, the rights and duties of partners, and how partnerships are formed and dissolved. Understanding this law is essential when setting up any partnership in Missouri.
Missouri Partnership Registration Requirements
In Missouri, general partnerships are not required to register with the Secretary of State, but filing a fictitious name registration is necessary if operating under a name other than the partners' legal names. This affects how you'll establish your business identity.
Missouri Tax Requirements for Partnerships
Partnerships in Missouri must comply with specific tax filing requirements. While partnerships themselves don't pay income tax, they must file informational returns, and partners report their share of income on individual returns. Understanding these tax obligations is crucial for proper compliance.
Missouri Business License Requirements
Depending on your business activities, your partnership may need specific licenses or permits to operate legally in Missouri. These requirements vary by industry and location within the state, making it important to research what applies to your specific business.
Missouri Partnership Agreement Guidelines
While not a specific statute, Missouri law recognizes written partnership agreements as binding contracts. Without a written agreement, the default provisions of the Missouri Uniform Partnership Law will govern your partnership, which may not align with your intentions for the business relationship.
Regional Variances
Major Metropolitan Areas
Kansas City has specific business licensing requirements for partnerships. Partnerships must register with the city's Revenue Division and may need to obtain additional permits depending on the business type. Kansas City also has its own earnings tax (1%) that applies to business income for partnerships operating within city limits.
St. Louis requires partnerships to obtain a business license through the License Collector's Office. The city also imposes a 1% earnings tax on business income. St. Louis has specific zoning regulations that may affect where partnerships can operate, particularly in historic districts or special business districts.
Rural Counties
Springfield has a streamlined registration process for partnerships and offers economic development incentives for businesses establishing in certain areas. The city has specific requirements for partnerships in the downtown Community Improvement District, including potential special assessments.
Columbia has unique requirements for partnerships related to the university community. Partnerships may need special permits when operating businesses that cater to students. The city also has specific regulations for partnerships operating in its designated Enterprise Zone.
Special Economic Zones
St. Charles County offers tax incentives for partnerships establishing in designated development zones. The county has streamlined permitting processes but requires partnerships to register with both the county and any municipality where they operate.
Jefferson County has specific regulations for partnerships operating in flood-prone areas along the Mississippi River. Partnerships may face additional insurance requirements and building restrictions depending on their location within the county.
Suggested Compliance Checklist
Anchor the formation step to Missouri's partnership code
Before formation days after startingMissouri Uniform Partnership Law, codified at RSMo Chapter 358 (sections 358.010 et seq.). Missouri retains the 1914 UPA framework (with modifications).
Set partner-authority expectations in the partnership agreement
During drafting days after startingRSMo section 358.090 (partner as agent).
Register the entity if liability protection is wanted
At formation days after starting$55 for two partners; $80 for three partners or $105 for 4 or more partners. $100
Map out how the partnership ends
After formation days after startingRSMo section 358.310 (causes of dissolution).
Calendar the state partnership tax return
Ongoing days after startingState partnership return administered by the state revenue department. Federal counterpart: IRS Form 1065. (consult the state code)
Add the periodic report to the entity-maintenance calendar
During drafting days after startingAn initial application by a partnership to register a limited liability partnership expires one year after the date of registration unless renewed. Thereafter, a renewal is required annually.
Keep the partnership agreement, statements, and filings together
Ongoing days after startingMaintain a single record set for the partnership agreement, any Statement of Authority, the SOS filings, EIN paperwork, and the annual report and tax filings.
| Task | Description | Document | Days after starting |
|---|---|---|---|
| Anchor the formation step to Missouri's partnership code | Missouri Uniform Partnership Law, codified at RSMo Chapter 358 (sections 358.010 et seq.). Missouri retains the 1914 UPA framework (with modifications). | - | Before formation |
| Set partner-authority expectations in the partnership agreement | RSMo section 358.090 (partner as agent). | partnership-agreement | During drafting |
| Register the entity if liability protection is wanted | $55 for two partners; $80 for three partners or $105 for 4 or more partners. $100 | - | At formation |
| Map out how the partnership ends | RSMo section 358.310 (causes of dissolution). | - | After formation |
| Calendar the state partnership tax return | State partnership return administered by the state revenue department. Federal counterpart: IRS Form 1065. (consult the state code) | - | Ongoing |
| Add the periodic report to the entity-maintenance calendar | An initial application by a partnership to register a limited liability partnership expires one year after the date of registration unless renewed. Thereafter, a renewal is required annually. | - | During drafting |
| Keep the partnership agreement, statements, and filings together | Maintain a single record set for the partnership agreement, any Statement of Authority, the SOS filings, EIN paperwork, and the annual report and tax filings. | partnership-agreement | Ongoing |
Frequently Asked Questions
Forming a general partnership in Missouri has no state filing fee because no state filing is required to create one under the state partnership act (Missouri Uniform Partnership Law, codified at RSMo Chapter 358 (sections 358.010 et seq.). Missouri retains the 1914 UPA framework (with modifications).). Registering an LLP or LP, however, does. LLP registration: $55 for two partners; $80 for three partners or $105 for 4 or more partners. LP Certificate: $100
By default in Missouri, RSMo section 358.090 (partner as agent). That default can be modified by the partnership agreement, but third parties acting in good faith may still rely on the statutory default unless they have notice of the restriction. The governing partnership-act chapter is Missouri Uniform Partnership Law, codified at RSMo Chapter 358 (sections 358.010 et seq.). Missouri retains the 1914 UPA framework (with modifications).
On a recurring basis in Missouri, a partnership has two cost lines. State tax: State partnership return administered by the state revenue department. Federal counterpart: IRS Form 1065. (consult the state code) Periodic report: An initial application by a partnership to register a limited liability partnership expires one year after the date of registration unless renewed. Thereafter, a renewal is required annually. When the partnership eventually winds up, the controlling statute is RSMo section 358.310 (causes of dissolution).
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