The immigration healthcare surcharge is a fee international (non-European Economic Area) students must pay if they are coming to the UK for more than six months. The fee contributes directly to the National Health Service (NHS) and gives migrants access to the NHS on the same terms as a permanent UK resident.
The surcharge is not a visa fee, but you will pay it to the Home Office at the point of your visa application.
The immigration healthcare surcharge for Tier 4 (General) visa holders is £300 per year. Dependants usually need to pay the same amount as you. Use the UKVI website to calculate how much you’ll have to pay before you apply.