Highest: €9M (Dec 4, 2023)
| Celtic |
| Age 30 |
| €9M |
| Celtic | Age 30 | €8.5M |
| Celtic | Age 29 | €8M |
| Celtic | Age 29 | €8M |
| Celtic | Age 28 | €7.5M |
| Celtic | Age 27 | €7M |
| Celtic | Age 27 | €6.5M |
| Celtic | Age 27 | €6M |
| Celtic | Age 26 | €4M |
| Celtic | Age 26 | €5M |
| Celtic | Age 26 | €5M |
| Celtic | Age 25 | €2M |
| Celtic | Age 25 | €2M |
| Celtic | Age 24 | €1.8M |
| Celtic | Age 23 | €1.3M |
| Celtic | Age 22 | €1M |
| Celtic | Age 21 | €750K |
| Notts County | Age 20 | €150K |
