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Texas statewide
Lock in the business name paperwork before you file or operate under it.
Use this form to ask for or update a business record. It helps the agency know who is responsible and what approval you need.
Legal name of the business or entity exactly as it appears on official records.
Assumed name or trade name to be registered or updated.
Responsible owner, officer, or authorized signer information.
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Chapter 1
Chapter 2
Chapter 3
Chapter 4
Strategic Brief
The Goal
Texas Form 503 is used to register or update an assumed name record so the state can connect the business name to the responsible person or entity. It is mainly used to keep business filings current and to show what name approval or authority is being requested.
The Warning
Legal name of the business or entity exactly as it appears on official records.
Assumed name or trade name to be registered or updated.
Responsible owner, officer, or authorized signer information.
Current business address and contact details.
Any existing filing details if this is an amendment or update.
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Docgle has completed source-to-completion review for this guided walkthrough.
Walkthrough status
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Agency
Texas Secretary of State
Form identifier
Form 503
Estimated time
Varies
Verified
May 2026
Jurisdiction
Texas statewide
PDF source
From the issuer: https://www.sos.state.tx.us/corp/forms/503_boc.pdf
Docgle cached copy: https://api.staging.docgle.ai/documents/2c60096d-dd55-44c5-bc65-81d7f17550a0/original