Table:
|  | 2019 | 2018 |
| --- | --- | --- |
|  | £m | £m |
| Trade payables | 57.9 | 57.4 |
| Contract liabilities | 8.7 | 8.9 |
| Social security | 5.6 | 5.1 |
| Other payables | 37.8 | 37.6 |
| Accruals | 64.8 | 58.0 |
| Total trade and other payables | 174.8 | 167.0 |
Paragraphs:
19 Trade and other payables
Contract liabilities relate to advance payments received from customers which have not yet been recognised as revenue. £8.3m of the contract liabilities at 31st December 2018 was recognised as revenue during 2019 (2018: £3.0m).
Question:
What do contract liabilities relate to?
Answer: advance payments received from customers which have not yet been recognised as revenue