Foster carers working directly with the council are receiving extra cash to help as the cost of living rises, councillors were told this week.
Officials told councillors that those foster carers tended to received more than those who had signed up with an independent foster agency although they gave no figures for comparison.
Brighton and Hove City Council has been trying to increase the proportion of foster carers who work directly with the council and reduce its reliance on independent agencies.
Six months ago, in March, 66 children were in placements arranged by agencies – or 30 per cent of the total – while 155 children (70 per cent) were in placements arranged by the council.