The Football League's latest figures show that Port Vale did not spend any money on agents fees during the 2009/10 season.
Vale were one of 14 clubs to make no payments to agents last term, having been part of a similar group of 19 clubs the season before.
Spending on agents fees by Football League clubs rose to £12.7million over the past 12 months, compared to the 2008/09 figure of £8.8million.
"Given the current economic climate, it is worrying to see such a significant amount leaking from the game," said Football League chairman Greg Clarke in response to the report.
"This year`s figures demonstrate a considerable increase on those of last season and it is essential that clubs work to reduce this liability over the coming campaign."