487 875 Other receivables 991 12,703 33,102 46,666 Trade receivables is stated net of an adjustment of mm) to reflect historical experience of customer retention. In the previous year other receivables included min relation to proceeds receivable from the disposal of financial assets on 31 March The carrying amount of trade and other receivables approximates to their fair value, which has been calculated based on expectations of debt recovery from historic trends feeding into expected credit loss calculations. The majority of trade receivables relates to members and future members debt which are individually small in value. ACCA applies the IFRS 9 simplified approach to measuring expected credit losses using a lifetime expected credit loss for trade receivables. To measure expected credit losses on a collective basis, trade receivables are grouped based on customer segment, geography, and product type. Loss rates are based on ACCA’s historic credit loss experience over the previous period and are then adjusted for current and forward-looking factors affecting ACCA’s members, future members and other customers e.g. retention rates and economic factors. As of 31 March 2022, trade receivables of mm) were past due but not impaired. The aging analysis of these trade receivables is as follows: 31 Mar 2022 £’000 31 Mar 31-60 days 2,148 2,184 61-90 days 2,821 2,325 91-120 days 13,589 14,823 Over 121 days 812 670 19,370 20,002 The movement on the impairment losses of trade receivables is as follows: 31 Mar 2022 £’000 31 Mar 2021 £’000 At 1 April 752 1,218 Receivables impaired during the year 965 757 Receivables written off during the year as uncollectible (354) (669) Amounts recovered which were previously provided for