What Is a Certificate of Authority?

Plain-language definition. Grounded in the Foreign LLC Registration Fees, Annual Report Rules, and Dissolution/Withdrawal Fees matrices. Not legal advice.

Short answer

A certificate of authority is the registration a state issues to an out-of-state (“foreign”) entity so it may lawfully transact business there — some states call it a certificate of authority, others a registration to do business. It is the document and status that foreign qualification produces: qualification is the process; the certificate of authority is what the process yields. The entity stays a single company — it simply gains authority to operate in the additional state.

What it costs to obtain

The one-time foreign LLC registration fee ranges from $50 (Michigan) to $765 (South Dakota, by mail). High-fee states include South Dakota, Texas ($750), Massachusetts ($500), and Alaska ($350); Tennessee prices by headcount with a $50-per-member formula ($300 floor, $3,000 ceiling). Per-state figures are in the Foreign LLC Registration Fees by State matrix and its explainer.

The obligations holding one starts

Registration is not a one-time event. In 43 of 51 jurisdictions, holding a certificate of authority puts the LLC on that state's recurring report cycle — usually the same report a domestic LLC files — per the Foreign LLC Annual Report Rules matrix, with renewal-fee detail in the renewal explainer. Missing the recurring filing leads, in most states, to loss of good standing and ultimately revocation of the authority to do business. Registering also creates a public record in the new state: the Foreign Qualification Privacy Exposure matrix tracks what each state discloses when a foreign entity registers.

How it ends

The registration continues until it ends one of two ways: the entity files a withdrawal — in some states styled a cancellation of authority — ending the registration and its recurring obligations (state filing fees run $0 to $275, per the withdrawal-fees explainer), or the state revokes it for non-compliance. Withdrawal is distinct from dissolving the entity itself — dissolution vs. withdrawal covers that boundary.

Not legal advice

Whether your activity in a state requires a certificate of authority turns on that state's “transacting business” standard — a fact-specific legal determination. Confirm requirements and fees against the state's official source (linked per row in the matrices above).

See also: What is Foreign Qualification? · Foreign LLC Registration Fees (matrix) · Dissolution vs. Withdrawal