Tilsley College obtained institutional accreditation from the European Council for Theological Education (ECTE) as an alternative provider of higher education in 2005 together with programme accreditation for the following programmes:
- Certificate of Higher Education (EQF Level 5 partial, since 2008)
- Diploma of Higher Education (EQF Level 5, since 2015)
- Baccalaureate of Higher Education (EQF Level 6, since 2018)
ECTE accreditation of alternative providers of higher education indicates that the learning opportunities offered by Tilsley College are compliant with the European Standards and Guidelines for higher education and attests to the level of the learning opportunities according to the EQF.