How to Start a Missouri Limited Liability Partnership, Step by Step

Your LLP's name must be distinguishable from every other business name already on file with the Missouri Secretary of State. "Distinguishable" is a legal test, not just a common-sense one — two names that differ only by punctuation, spacing, or a word like "the" or "and" may still be treated as the same name and rejected.

Start at the Missouri business entity name search. Search your proposed name and close variations. If a name is too similar to an existing entity, the Secretary of State can refuse your registration, which delays everything.

Name requirements

• The name must contain "Limited Liability Partnership," "L.L.P.," or "LLP."
• It must be distinguishable from other names on file with the Secretary of State.
• Restricted words — those implying a bank, insurer, or a licensed profession you don't hold — may require additional approval.

Optional: name reservation

If you have settled on a name but aren't ready to register the LLP, Missouri lets you reserve a name for a limited period so no one else can take it while you get organized. Reservation is not registration — it just holds the name.

Fictitious name

If you plan to operate under a name different from your registered LLP name, Missouri handles that through a separate fictitious name registration with the Secretary of State. That is a distinct filing from the LLP registration itself.

Before you file, you need a registered agent decided on and willing to serve, because the agent's name and Missouri address go on the registration statement.

Missouri requires every LLP to keep a registered agent with a physical Missouri street address throughout the life of the partnership. The agent is the party that receives lawsuits, subpoenas, and official state correspondence on the LLP's behalf.

Who can serve

• A partner: Any partner with a physical Missouri street address who is reliably available during business hours. That address becomes part of the public record.
• Another individual: A Missouri resident with a street address — an employee, an attorney, or another trusted person.
• A commercial registered agent service: A business authorized to act as an agent in Missouri. It keeps its professional address in the public record instead of yours and makes sure someone is always available to accept documents.

Why the choice matters

If you use a partner's home address, that address is searchable in the state's public database. Partnerships that value privacy — or whose partners travel — usually prefer a commercial service so there's always a reliable place for legal documents to land and no home address exposed.

The LLP registration — the Statement of Qualification — is the filing that turns your general partnership into a registered limited liability partnership in Missouri's records. File it with the Business Services Division, either through the online business filing system or by mail. The state fee is reflected on the receipt card on this page.

Online filings are typically processed quickly, often the same business day, while mailed paper filings take longer to be keyed in and returned. Keep the filing confirmation; you'll need it for the bank and for anyone who asks whether your shield is in place.

What goes in the registration

• Partnership name with the required LLP designator
• Principal office address — a physical location, not a bare P.O. box
• Registered agent name and Missouri street address
• A statement that the partnership is registering as a limited liability partnership
• Effective date — on filing or a later specified date

What you don't have to include

You don't have to attach your partnership agreement, list every partner's capital contribution, or describe your line of business in detail. The registration is a short qualifying document; the internal economics live in your partnership agreement and stay private.

The partnership agreement is your LLP's internal governing document. Missouri doesn't require you to file it, and it never enters any public database — but you should have one in place before you take on work, admit partners, or open accounts.

What a complete partnership agreement covers

• Ownership and capital: Each partner's percentage interest and what they contributed at formation
• Profit and loss allocation: How profits and losses are split — it doesn't have to track ownership percentage
• Distributions: When and how cash is paid out to partners
• Management and voting: Who runs day-to-day operations and which decisions require a partner vote
• Admission and withdrawal: How new partners join and how a departing partner is bought out
• Dissolution: The circumstances under which the partnership winds down and how assets are distributed

Without a written agreement, Chapter 358's default rules govern all of this, and those defaults often surprise partners who assumed a different arrangement. In a professional practice, the agreement is also where you spell out how the liability shield interacts with each partner's individual responsibility for their own work.

An Employer Identification Number is a nine-digit federal tax ID issued by the IRS at no charge. A multi-partner LLP needs one regardless, because a partnership files its own federal return.

When your LLP needs an EIN

• The LLP has more than one partner (a partnership files Form 1065 and issues K-1s)
• You plan to hire employees
• You want to open a business bank account — nearly every bank requires it
• You've made a special tax election with the IRS

How to apply

Apply online through the IRS EIN Assistant at IRS.gov. The application takes about ten minutes and the EIN is issued immediately, so you can use it the same day. The online tool requires a U.S. Social Security number or ITIN for the responsible party. Partners without one apply by fax or mail using Form SS-4.

Separate finances are essential to preserving the LLP's liability shield. If partners pay personal expenses from the partnership account or deposit partnership income personally, the line between the partners and the business blurs — and that is exactly what a plaintiff's lawyer looks for.

What most banks want to open an LLP account

• Your filed LLP registration from the Secretary of State
• The IRS EIN confirmation
• The partnership agreement (many banks ask for it)
• Government-issued ID for each authorized signer

Community banks and credit unions are often more flexible with new partnerships than large national chains, and several online business banks can open an account without a branch visit. Compare monthly fees, transaction limits, and minimum balances before choosing.

Most of the compliance work is front-loaded into registration. After that, it's primarily one recurring state filing plus attentiveness to changes in your agent or address.

Annual report

Missouri LLPs file an annual report with the Secretary of State to keep the registration current, generally around the anniversary of registration. The report confirms your contact and agent information. Missing it puts the partnership's good standing — and its shield — at risk.

Registered agent maintenance

If your agent moves, resigns, or you switch agents, file the change with the Secretary of State promptly. An outdated agent address leaves the LLP technically non-compliant even when everything else is current.

Tax filings

A multi-partner LLP files federal Form 1065 and issues Schedule K-1s to the partners, who report their shares on their personal returns. Coordinate Missouri income tax with your accountant. If you sell taxable goods or services, register with the Missouri Department of Revenue for the applicable taxes.

Licenses and permits

Many LLPs — particularly professional practices — need state licensure for the profession itself, and local governments may require their own registrations. These run on their own cycles and are separate from your LLP registration with the Secretary of State.