How to Start a California Limited Partnership — Step by Step

Your LP's name has to be distinguishable from every other business entity already on record with the California Secretary of State, and it has to carry the right designator. Start at the California business search and run your proposed name plus close variations. If a name is too similar to one already registered, the state will reject your certificate and you'll start over.

Naming rules for a California LP

• The name must contain "Limited Partnership," "LP," or "L.P." — the abbreviations may be written with or without periods
• It must be distinguishable in the records from existing California entity names
• It cannot mislead the public about the LP's purpose or falsely imply a connection to a government agency
• Words implying banking, insurance, or trust powers can trigger additional approval requirements

Reserving the name

If you're not ready to file but want to hold the name, California lets you reserve an available name for 60 days through bizfile Online. Reservation locks the name while you finish assembling the certificate details — it does not create the LP.

Before you file, decide who will serve as the LP's agent for service of process. This party is named on the Certificate of Limited Partnership and must accept the role. California requires the LP to maintain an agent continuously for as long as the entity exists.

Who qualifies

• An individual California resident with a physical California street address, available during business hours
• A registered corporate agent — a company that has filed a Section 1505 certificate with the Secretary of State and is authorized to act as an agent statewide
• A general partner can serve, but the address becomes public record

Why the choice matters

Whatever address you list appears in the public bizfile record and is searchable online. If a general partner uses a home address, that home address is exposed. A commercial agent keeps a professional address on file, is reliably present to receive service of process, and forwards documents to you. Missing a served lawsuit because no one was available can lead to a default judgment against the partnership.

The Certificate of Limited Partnership is the filing that brings your LP into existence. You submit Form LP-1 through the bizfile Online portal. Mail-in paper filing for these documents was discontinued — the process is online.

What goes on the certificate

• LP name with the required designator
• Designated office address — the California street address where partnership records are kept
• Agent for service of process — name and physical California address
• General partner(s) — the name and address of each general partner
• Signatures of all general partners

Note what's not on the form: no limited partners, no capital amounts, no partnership agreement, no description of your business activity. The certificate is intentionally lean.

Processing time

Online filings typically clear in a few business days, subject to the Secretary of State's current backlog. California offers paid expedited service if you're working against a deadline like a lease signing or a bank appointment. Once accepted, the LP shows up in the public business search and your stamped certificate is available.

An LP needs its own Employer Identification Number. Because a limited partnership has more than one owner, the IRS treats it as a partnership by default, and a partnership must have an EIN to file its informational return, open a bank account, and issue K-1s to the partners.

You apply directly with the IRS at irs.gov. The online application is free and issues the number immediately when the responsible party has a U.S. taxpayer ID. Apply only after your Certificate of Limited Partnership has been accepted, so the entity name on the EIN matches the state record exactly.

Why the EIN comes before the bank account

Every bank will ask for the EIN and the filed certificate before opening a business account for the LP. Keeping partnership funds in a dedicated account — separate from any partner's personal money — is what preserves the integrity of the structure and keeps the partners' individual finances clean.

California does not require you to file a limited partnership agreement, and most LPs operate under a signed agreement that governs everything the certificate leaves out. Without one, the default provisions of California's Uniform Limited Partnership Act fill every gap — and those defaults rarely match what the partners intended.

What the agreement should cover

• Capital contributions — what each partner contributed and any obligation to contribute more
• Profit and loss allocation — how earnings and losses are split among general and limited partners
• Distributions — when and how money is paid out
• Management authority — what the general partner can decide alone and what needs limited-partner consent
• Admission and withdrawal — how new limited partners come in and how interests are transferred or bought out
• Dissolution — the events that wind down the LP and how assets are distributed

This is the document that keeps limited partners passive on paper — a critical detail, since a limited partner who takes on management duties can forfeit their liability protection.

California requires an LP to keep its record current, and it imposes an annual tax that catches many new partnerships by surprise. Getting these two obligations onto your calendar right after formation is the difference between an LP in good standing and one that quietly falls out of compliance.

Statement of Information (LP required filing)

A California LP files a Statement of Information reporting its agent for service of process and general partner details with the Secretary of State. Keep this on file and updated whenever the agent or a general partner changes.

The annual tax

California charges limited partnerships an annual tax paid to the Franchise Tax Board — this is a flat state tax owed for the privilege of doing business as an LP in California, separate from any income tax on the partners. It is due regardless of whether the LP made money. Budget for it from day one; it's the single most common thing new LPs overlook.

Keeping the LP in good standing

Maintain a valid agent for service of process, keep the general partner information accurate, file the Statement of Information on schedule, and pay the annual tax. Miss these and the LP can fall out of good standing, which complicates banking, contracts, and eventual dissolution.