|Directory customer receivables||806.4||726.6|
|Less: allowance for doubtful debts||(124.2)||(125.4)|
|Other trade receivables||21.6||21.2|
|Less: allowance for doubtful debts||(0.2)||(0.2)|
|Amounts due from associated undertakings||1.0||0.8|
No interest is charged on Directory customer receivables if the statement balance is paid in full; otherwise balances bear interest at a variable annual percentage rate of 25.99% (2013: 25.99%).
Expected irrecoverable amounts on overdue balances are provided for based on past default experience. Receivables which are impaired, other than by age or default, are separately identified and provided for as necessary.
The credit quality of customer receivables that are neither past due nor impaired can be assessed by reference to the historical default rate for the preceding 365 days of approximately 1% (2013: 1%), although default rates over shorter periods may show significant variations.
Other debtors and prepayments do not include impaired assets. The maximum exposure to credit risk at the reporting date is the carrying value of each class of asset. The Group does not hold any collateral over these balances.
Ageing of customer and other trade receivables:
|Not past due||687.2||609.7|
|0 – 30 days past due||46.4||40.0|
|30 – 60 days past due||10.4||9.2|
|60 – 90 days past due||3.8||3.5|
|90 – 120 days past due||2.8||2.2|
|Over 120 days past due||55.6||63.9|
|Total customer and other trade receivables||828.0||747.8|
Movement in the allowance for doubtful debts:
|Charged to the income statement||29.0||28.3|
|Written off as uncollectible||(25.6)||(11.7)|
|Recovered during the year||(4.6)||(4.7)|