The standard UK Assessment Fee is £750 plus expenses.   This covers visits within the UK and the Reporting Assessor.  It will be more if:

a) travel outside the UK is required; this will be charged at cost
b) the provision to be assessed is large and/or complex. The fee will depend on the amount of work involved and will be discussed and agreed with the provider in advance

An Annual Fee of £1,500 is charged to all accredited providers.