If you teach languages, physics, chemistry, biology or computing for at least 50% of your timetable, the DfE is letting you claim back your recent student loan repayments, subject to living in certain areas of the country (details in link) and only if you completed your teacher training 2014 onwards.
www.gov.uk/government/publications/additional-payments-for-teaching-eligibility-and-payment-details/teachers-claim-back-your-student-loan-repayments-eligibility-and-payment-details