30 September 2021
30 September 2020
Tax and social insurance contributions
Other current liabilities
The Group’s liquidity risk relating to trade and other payables is disclosed in Note 24.3 Liquidity risk.
Advance billings are presented under contract balances in Note 5.
Trade payables decreased mainly due to cash management decisions following the Covid-19 outbreak which resulted in excess cash and the consequent decision to pay trade payables early. Other current liabilities are at a normal level. Accruals have primarily been made to cover housing expenses, charges for third-party services still to be paid and insurance premiums; the increase of which mainly relates to third-party services.