Jo Johnson, Universities & Science Minister in a written answer:
“The Resource Accounting and Budgeting (RAB) charge is calculated for the total full time student population, rather than separately for students on courses of different lengths or on the basis of the size of the loans taken out. We estimate that the RAB charge for full-time tuition fee and maintenance loans, and part time fee loans, is between 20% and 25%.
These estimates take into account the changes to student finance and the new HM Treasury discount rate used to value the student loan book announced at the Spending Review and Autumn Statement 2015. We will update our estimates in summer 2016 and publish these at the same time as BIS accounts, alongside an updated version of the simplified loan repayments model.”