Turkish Businessperson Visa:
If you have permission to stay in the UK, then apply for an extension of your visa as a Turkish Businessperson Visa. You must have a business in the UK and planning to start another business or continue to run the already existing business. This Visa is only extended while you are inside the UK. The eligibility of a Turkish Businessperson is to have a valid and viable business in the UK, an approved Turkish businessperson visa already, can pay your share cost, and bear the family expenses without doing any other job in the UK.
Turkish businessperson visa will be extended up to 3 years. You can apply for this visa extension as many times as you like. After the completion of 5 years in the UK, you can apply for indefinite leave to remain (a permanent settlement) in the UK. You and yours dependent allow applying separately from inside and outside the UK. The process of application is online and specified. You will get a decision on this Visa within 6 months. For a Turkish businessperson visa, there is no fee for extending of Visa. You can do all is running a business and start another business, study, volunteer work, apply for settlement in the UK.