The application fee varies depending on whether you are applying from outside the UK or inside the UK. The current application fees are:
Outside the UK: £363;
Inside the UK: £493.
If you are from one of the following countries, the above visa application fee will be automatically reduced by £55:
Austria, Belgium, Croatia, Republic of Cyprus, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Luxembourg, Malta, Netherlands, North Macedonia, Norway, Poland, Portugal, Slovakia, Spain, Sweden or Turkey.
This fee reduction does not apply to dependant visa applications.
You will also have to pay the Immigration Health Surcharge for the duration of your visa and a fee to enrol your biometric information.