Yes — a registered office signboard is mandatory under two separate laws. Under Section 12(3) of the Companies Act, 2013, every Company must paint or affix its name, registered office address, and Corporate Identity Number (CIN) outside every office or place of business, in a legible language, visible during business hours. Separately, under Rule 18(2) of the CGST Rules, 2017, every GST-registered business must display its GSTIN on the name board at the entrance of its principal place of business.
What has to be on it
- Company Name (as registered)
- Registered office address
- Corporate Identity Number (CIN)
- GSTIN, if GST-registered (required separately under Rule 18(2) of the CGST Rules)
Is this different from a Common Seal or Rubber Stamp?
Yes. A signboard is physically displayed at your office; a Common Seal is embossed on documents; a Rubber Stamp is inked on paperwork. Most Companies need all three at some point, but the signboard is the one with explicit display requirements under both the Companies Act and GST law.
What happens if I skip it?
Non-compliance with Section 12(3) can attract penalties under the Companies Act, and non-compliance with Rule 18 can attract penalties under GST law.
What's typically arranged
A single 3-in-1 acrylic signboard covering Company Name, CIN, and registered office address satisfies the Companies Act requirement for most Companies, LLPs, and OPCs. Once GST-registered, the GSTIN can be added to the same signboard to cover Rule 18(2) as well.
Reference: compliance signboard options.