California LLC Name Requirements: Complete Filing Guide for 2026

California has strict LLC naming rules. Learn exact requirements, restricted words, and how to check name availability before filing with CA SOS.

Trademark Lens Team

California LLC names must include "LLC", "L.L.C.", or "Limited Liability Company". Must not conflict with existing CA businesses or trademarks. Cannot use restricted words without approval. Filing fee: $70, processing 10-15 business days.

California LLC Name Requirements

California Secretary of State enforces strict naming rules.

Required Designators

Must include: "LLC", "L.L.C.", or "Limited Liability Company". Can appear anywhere in name. "Blue Ocean LLC", "LLC Blue Ocean", "Blue Ocean, LLC" all valid. Cannot use: "Ltd", "Inc", "Corp" (wrong entity type). Abbreviations must be one of the three approved.

18% of California LLC filings are rejected due to name issues. Most common: Missing/incorrect designator. Conflict with existing business. Use of restricted words without approval.

Name Availability Requirements

California prohibits names that:

Identical or Confusingly Similar

Cannot be same as existing CA business. "Confusingly similar" is subjectively determined. "Blue Ocean LLC" likely blocks: "Blue Oceans LLC", "Blueocean LLC", "Blue Ocean Group LLC". Adding descriptor may not help: "Blue Ocean Marketing LLC" may still be too similar. Search: CA Business Search.

Restricted Words

These words require pre-approval or licensing: Bank, Banking, Trust: Requires CA Department of Financial Protection and Innovation approval. Attorney, Law, Legal: Requires active CA State Bar members. Insurance, Insurer: Requires CA Department of Insurance license. Engineer, Engineering: Requires licensed PE. University, College: Requires CA Bureau for Private Postsecondary Education approval. Accountant, CPA: Requires CA Board of Accountancy license.

Restricted Word Process: Using "Law" in California LLC name requires: All members must be licensed CA attorneys. Must provide bar numbers on filing. SOS will reject filing if not provided. Process adds 2-4 weeks to formation timeline.

Checking Name Availability

Multi-step verification process.

Visit bizfileonline.sos.ca.gov/search/business. Search your desired name without LLC. Check variations (plural, singular, spacing). Review results for: Active businesses. Reserved names. Dissolved businesses (may still block you). Business type (LLC, Corp, LP, etc all conflict).

Beyond State Database

CA database doesn't show: Federal trademarks (USPTO). Pending trademark applications. Common law business names. DBA/Fictitious names. Check these separately to avoid legal issues.

California Name Reservation

Secure your name before formal filing.

Reservation Details

Cost: $10. Duration: 60 days. Form: Name Reservation Request (Form LLC-12). Processing: 5-7 business days. Extends filing window: Prepare operating agreement while name reserved. Gather member information. Arrange initial capital. Prevents someone else taking name.

When to Reserve

You're not ready to file LLC yet. You need time to: Finalize operating agreement. Coordinate with co-founders. Secure funding. Want to lock in name immediately. Multiple parties involved (lawyers, accountants preparing docs).

California receives 200,000+ LLC filings annually. Competitive names can be taken within days. 12% of businesses lose desired name between searching and filing.

California Filing Process

After confirming name availability.

Site: bizfileonline.sos.ca.gov. Form: Articles of Organization (LLC-1). Fee: $70. Processing: 10-15 business days standard. Expedited: +$350 for 2-3 business days. +$750 for 24 hours. +$1,250 for 4 hours.

Required Information

LLC name with designator. CA street address (no PO boxes). Registered agent: CA resident or CA corporation. Name and address of agent. Service of process address. Management structure (member-managed or manager-managed). Organizer information (person filing).

Foreign LLC Name Requirements

Out-of-state LLC doing business in California.

Foreign Qualification Rules

If your home-state name conflicts with existing CA business: File under different name. Use "doing business as" (DBA). Get written consent from existing business (rare). Add distinguishing words approved by CA SOS.

Process

Form: Application to Register Foreign LLC (LLC-5). Fee: $70. Must show: Certificate of Good Standing from home state (issued within past 90 days). Proof name available in CA or consent letter. Same registered agent requirements. Annual franchise tax still applies ($800 minimum).

California Franchise Tax: All California LLCs pay minimum $800 annual franchise tax to Franchise Tax Board. Due within 3-4 months after formation. Not paid to Secretary of State (separate agency). First year may be waived if filing late in year. Plan for this expense.

Name Change After Formation

Want to change LLC name post-filing?

Amendment Process

Form: Certificate of Amendment (LLC-4/8). Fee: $30. Process: Vote by members (per operating agreement). Check new name availability. File amendment. Update: EIN with IRS. Business licenses. Bank accounts. Contracts. Marketing materials.

Cost of Name Change

Filing fee: $30. Updating materials: $500-5,000+. Bank account changes: Free-$50. License updates: Varies by county. DBA filings if keeping old name: $26-100. Consider: Total cost $1,000-10,000 depending on business size. Change early if needed (less expensive when small).

California DBA Requirements

Operating under name different than LLC name.

When DBA Needed

"Smith Holdings LLC" operates as "Blue Ocean Coffee". Multiple brands under one LLC. Name already taken for LLC but available as DBA. Filing: County Clerk's office (county where business operates). Fee: $26-100 depending on county. Renewal: Every 5 years. Publication: Required in some counties (newspaper notice, $50-200).

Trademark Protection in California

LLC registration ≠ trademark protection.

State vs Federal

CA LLC registration: Prevents identical name in California. No protection in other states. No protection against similar names. Federal trademark (USPTO): Protects across all 50 states. Prevents confusingly similar marks. Covers online/interstate commerce. $250-350 to file. California state trademark: Only protects in California. $70 to file. Weaker than federal. Rarely worth it (get federal instead).

Always check USPTO before choosing CA LLC name. Prevents future trademark conflicts.

Multi-Check Before Filing

Trademark Lens verifies: California business database availability. USPTO federal trademarks. .COM domain availability. Social media handles. Shows all conflicts before spending $70 filing fee.

Filing Checklist

Name available in CA Business Search. No USPTO trademark conflicts. Domain available (.com preferred). Registered agent selected. $70 filing fee ready. $800 franchise tax budgeted. Operating agreement drafted (not filed but needed). Initial member contributions planned.

Ready to Verify Your Business Name?