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 the same access to the NHS as UK citizens.
The surcharge is not a visa fee, but you have to pay it as part of your online visa application.
The immigration healthcare surcharge for Tier 4 (General) visa holders and any dependants is £300 per person, per year of study. Part years of less than six months will be charged £150. For example, an Undergraduate coming to study a four year programme will be charged £1,350 (£300 per year of programme, plus £150 for the four month period at the end of your visa). Use the UKVI website to calculate how much you’ll have to pay before you apply.