Now think how long you want the competition to run for! We usually run all our promotions for at least 4 weeks, however be sensible. if you have a £10 prize on offer it's not good practice to pad out your prize draw for several months.
To help you we've put together a set of standard competition rules. Publish them on your site and make sure they are clear and accessible to everyone. Too many websites hide away their competitions terms and conditions, whilst some don't even bother to show any.
The Law & Competitions
For information about the law and free prize draws we recommend you check out Out Law. You'll also find CAP code guidelines from the British Code of Advertising, Sale Promotion and Direct Marketing that can help you with regards your rules.
Note that we have assumed that you're thinking of running a free prize draw. The law is slightly different when it comes to running competitions that involve purchases!