How secure are your company authentication codes?

With over 5 million company documents filed electronically at Companies House last year, security is often a concern. Every company has a single authentication code allowing them (or their agents) to electronically submit accounts, annual returns or other changes to the company’s details.

Here are Companies House top tips to keeping your company’s code secure:

  • Don’t choose a code that could be guessed easily like 111111 or ANDREW.
  • Mix letters and numbers in your code
  • Only share your code with someone you trust to file information for your company
  • Change your code (through Companies House Web filing) if someone who knows it changes jobs or you think it may have been discovered by someone who isn’t trusted to file for your company
  • If you file for more than one company, use a different code for each – it’s safer if it’s unique
  • If you change your code and use an agent to file on your behalf, tell them in advance to avoid rejections
  • No post-it notes on the PC

With thanks to Companies House.


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