In England, 60.5% of apprentices completed and passed a final assessment in 2023-24.
The previous Conservative government had aimed for that to reach 67% by this year.
A Department for Education report in March 2022 suggested that four in 10 people who did not complete their apprenticeship cited personal reasons, including career changes, mental health issues and caring responsibilities.
However, about four in 10 also said they were not given enough time for training, that the training did not meet their expectations, or that the apprenticeship was badly run.
Ucas has warned that young people are being put off by a range of barriers, including:
In February, the government relaxed the rules for apprentices over the age of 19 by allowing businesses to decide whether a maths and English qualification should be part of the prescribed course.
It also confirmed plans to reduce the minimum duration of an apprenticeship, from 12 months to eight months, from August 2025.