17. Trade and other receivables

2009
£000 		2008
£000
Amounts falling due within one year:
Trade and other receivables 1 7,524 1,378
Less: provision for impairment of trade receivables (395) (297)
Net trade receivables 7,129 1,081
Receivables from related parties (note 28) 179 174
Tax recoverable 68 62
Prepayments 148 171
Total 7,524 1,488


The ageing of trade receivables at the reporting date was as follows:
2009 Gross £000 2009
Impairment
£000 		2008
Gross
£000 		2008
Impairment
£000
Not past due 380 – 725 -
Past due 0-30 days 415 - 140 -
Past due 31-60 days 69 – 38 –
Past due 61-90 days 60 – 87 –
More than 91 days 1 6,600 (395) 388 (297)
Total 7,524 (395) 1,378 (297)

1Current year receivable includes £5,996,000 deferred consideration due on the disposal of Thiakis.

Movements on the provision for impairment of trade receivables are as follows:

2009
£000 		2008
£000
At 1 August 297 297
Provision for receivables impairment 98 -
At 31 July 395 297

The impairment provision at 31 July 2009 relates to trade receivables from portfolio companies which are greater than twelve months overdue only.

The creation and release of provision for impaired receivables has been included in other administrative expenses in the Income Statement (note 6). The other classes within trade and other receivables do not contain impaired assets. The maximum exposure to credit risk at the reporting date is the fair value of each class of receivable mentioned above. The Group does not hold up collateral as security.