It is important to follow the legal guidelines when you post adverts or use affiliate links online. Many of the same rules that apply to other types of advertising also apply to online marketing. These rules and guidelines protect businesses and consumers.

The Advertising Standards Authority (ASA), UK’s independent regulator across all media, enforces guidelines and has lots of good advice and resources for affiliates and influencers on how to post ads.

Here are some updated information that may help in this process:
UK Advertising Rules and Affiliate Marketing