Sunderland spent £3,404,540 on payments to agents over a 12-month period, new Premier League figures have revealed.
Premier League clubs paid out nearly £130million to agents last year - a £15million increase on the year before.
Liverpool spent the most of any club, £14.3million, followed by Manchester United (£13.8m) and Manchester City (£12.4m) with the total reaching £129.86million for the year ending September 30. Chelsea and Arsenal both spent £11.9million while at the other end of the scale newcomers Watford spent £1.6million.
The total spent in the Championship was £26.1million, £3.2million in League One and just £1million in League Two.
Fees are not just paid to agents when transfers happen, but also when players sign new contracts.
During the period in question, there were 172 inbound transfers and loans in the Premier League, 542 new or improved contracts and 573 outbound transfers and loans - a total of 1,287 transactions, all of which could have led to an agent's fee being paid.
The biggest payers in the Championship were Cardiff (£2.8m), Fulham (£2.7m), QPR and Reading (both £2.3m).
Further down the pyramid, League One club Bury and League Two's Accrington Stanley Hartlepool did not pay anything at all in to agents.
AFC Bournemouth - £2,328,862
Arsenal - £11,928,584
Aston Villa - £4,986,058
Chelsea - £11,961,206
Crystal Palace - £4,719,931
Everton - £4,479,432
Leicester City - £4,057,727
Liverpool - £14,301,464
Manchester City - £12,429,380
Manchester United - £13,881,814
Newcastle United - £5,946,031
Norwich City - £2,484,285
Southampton - £5,391,172
Stoke City - £5,308,545
Sunderland - £3,404,540
Swansea City - £4,250,030
Tottenham Hotspur - £5,987,052
Watford - £1,620,229
West Bromwich Albion - £3,342,217
West Ham United - £7,049,001
Total - £129,857,560
The Premier League has published details of its clubs' payments to agents from the period of 1 October 2014 to 30 September 2015.
During this period a total of £129.86million was spent by the 20 present Premier League clubs on agents. The amounts shown include payments made by clubs on behalf of players.
The Premier League agreed in June 2008 that from season 2009/10 onwards each club, on 30 November each season, would publish the total amount they paid to authorised
agents during the period 1 October of the previous year to 30 September of that year (encompassing the two transfer windows).