For 2012/13, the fees per term for studying at Westminster School and at the Under School are:
| Pupil Type | Fees |
| Boarding | £10,450 |
| Queen's Scholars | £5,225 |
| Day | £7,236 |
| Day (Sixth Form Entry) | £7,846 |
| Westminster Under School | £5,038 |
NB: There are three terms per academic year