UK - SIC Code

[Generalissimo]

What SIC Code should I use on my annual return. My companies main activity is website publishing, making money from adverts, here are a few I think I could use:

9700 Advertising
9253 Software Publishing
9251 Computer and Related Activities

[MarkB]

Computer and Related Activites, IMO

[jonnyhilfiger]

I'm sure I used Computer and related services on my return - It came back as 'Library Services' when I checked online - not sure if it was my mistake or theirs. Heyho will change it again on this years return.

[aj8]

FYI it's only for Companies House research. They aren't going to come around and close you down because you aren't doing library services :o)

[Generalissimo]

I actually am doing a sort of 'library service' anyway, so even if the same problem happens to me...