Leweston aims to make its fee structure as clear as possible.
For the academic year 2023-24 the termly fees are as follows:
| Day | Weekly Boarding (Monday to Friday) | Full Boarding | International Boarding | |
| Reception | £2,499 | |||
| Year 1 | £2,499 | |||
| Year 2 | £3,060 | |||
| Year 3 | £3,060 | |||
| Year 4 | £3,796 | £6,728 | £8,137 | £8,137 |
| Year 5 | £3,796 | £6,728 | £8,137 | £8,137 |
| Year 6 | £4,528 | £6,728 | £8,137 | £8,137 |
| Year 7 | £6,062 | £8,494 | £9,846 | £9,846 |
| Year 8 | £6,062 | £8,494 | £9,846 | £9,846 |
| Year 9 | £6,062 | £9,405 | £10,930 | £10,930 |
| Year 10 | £6,062 | £9,405 | £10,930 | £10,930 |
| Year 11 | £6,062 | £9,405 | £10,930 | £10,930 |
| Year 12 | £6,062 | £9,405 | £10,930 | £10,930 |
| Year 13 | £6,062 | £9,405 | £10,930 | £10,930 |