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Business Certificate (City Clerk): how to file the boston business certificate (DBA)

Needed when the business trades under a name other than its legal name. Bring the notarized form, the signed lease and photo ID to City Hall, Room 601 (the clerk notarizes free), or mail them with a check; there is no online filing. An LLC or corporation registers with the Secretary of the Commonwealth first.

City of Boston, City ClerkBostonUpdated October 17, 2026

Agency
City of Boston, City Clerk
Where it applies
Boston
How it's filed
Filed in person
Fee
$65$65, plus $35 if the owner doesn't live in Massachusetts.
How long it takes
Issued while you wait in person; 2 to 3 business days by mail.
Renewal
Every 4 years from the first registration; the clerk mails a renewal letter.

What to attach

  • Signed lease, or a notarized letter from the landlord
  • Government photo ID

Official links

Checked against the agency's own page.

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