19. Contract liabilities, trade and other payables

	2022 £000	2021 £000
Trade creditors	47,326	44,092
Other taxation and social security	3,460	2,839
Other creditors and accruals	41,776	29,628
Contract liabilities (note 17)	17,930	–
Amounts owed to JVs and associates	1,200	1,244
	111,692	77,803

In the current year, other creditors and accruals includes the outstanding contingent purchase consideration for DAM Structures of £8,500,000, which is payable in the next 12 months.

Contract liabilities of £17,930,000 reflect advance payments from customers for construction contracts for which revenue has not been recognised against as at 26 March 2022. At 27 March 2021, there were no advance payments.

In the prior year, other creditors and accruals included outstanding purchase consideration for CMF Limited of £500,000. This was paid in full in the current year.

Non-current liabilities	2022 £000	2021 £000
Other creditors and accruals	3,081	10,639
	3,081	10,639

Non-current other creditors and accruals in the current and prior year reflects the outstanding contingent purchase consideration for DAM Structures of £3,081,000 (2021: £10,639,000) which is payable in the next five years, subject to certain conditions beyond the Group's control.

The directors consider that the carrying amount of trade payables approximates to their fair value.

The average credit period taken for trade purchases, calculated on a count-back basis to make appropriate allowance for monthly revenue phasing, is 52 days (2021: 45 days).