The UK government has set out some of the steps to start a business in the UK, including steps for different types of businesses. You can find information about legal definitions, how to register a business, tax and other formalities.
There are six different steps listed to starting a business in the UK:
- Start with an Idea
- Get funding
- Research your market
- Develop and plan
- Find partners, suppliers and premises
- Set up your business
Check out their site, which has a wealth of practical advice.