UK company name rules: the "same as" test

You can't register a company with a name that is the "same as" one already on the Companies House register. "Same" doesn't mean identical. Before comparing, Companies House strips away the parts of a name that don't make it different. Those rules are set out in Schedule 3 of the 2015 Names Regulations.

What gets ignored, in order

  1. Accents. "Café" counts as "Cafe", and "Æ" as "AE".
  2. The company type at the end. "Limited", "Ltd", "PLC", "LLP", "CIC" and their Welsh versions, with or without full stops.
  3. Equivalent words and symbols (as separate words): "&" and "and", "+" and "plus", "2", "two", "to" and "too", "4", "four" and "for", other numbers and their words, "£" and "pound", "%" and "per cent", "@" and "at".
  4. Endings like "Company", "Co", "UK", ".com", "GB", "Wales" at the end of the name, alone or combined, including in brackets, as in "(UK)".
  5. Punctuation such as full stops, commas, hyphens, apostrophes, brackets and quotes, and the symbols *, = and #.
  6. A final "S".
  7. Everything after the first 60 characters, counting spaces.
  8. "The", "www" or "@" at the start.
  9. Spaces.

If what's left is identical for two names, they count as the same.

Examples

Name Compared as Name Compared as Same?
Acme Widgets Ltd ACMEWIDGET Acme Widgets Limited ACMEWIDGET Yes
The Bakery Ltd BAKERY Bakery Ltd BAKERY Yes
Smith & Sons Ltd SMITHANDSON Smith and Son Ltd SMITHANDSON Yes
Back 2 Basics Ltd BACK2BASIC Back To Basics Ltd BACK2BASIC Yes
Acme (UK) Ltd ACME Acme.com Ltd ACME Yes
Café Nero Ltd CAFENERO Cafe Nero Ltd CAFENERO Yes
A.B.C. Services Ltd ABCSERVICE ABC Service Ltd ABCSERVICE Yes
Acme Trading Ltd ACMETRADING Acme Ltd ACME No

Other rules that can still block a name

There is one exception to the "same as" rule: a company in the same group can register a same-as name with the existing company's consent.

Check your name

Sources

Facts last checked 31 October 2026. See all sources.