Liverpool face a hefty bill after being confirmed as Premier League champions.
Liverpool must paymillions to their domestic rivals in bonus transfer payments after ending their 30 year wait for the title.
The Daily Mail says Southampton are set to be the biggest profiteers, with the St Mary's club due a significant seven figure sum, as high as £3million, for the transfer that saw Virgil van Dijk, Sadio Mane, Adam Lallana and Dejan Lovren to Anfield.
It is understood Arsenal are also due a windfall as part of the deal that saw Alex Oxlade-Chamberlain leave Arsenal for Liverpool in August 2017.
Championship clubs Hull and Charlton are also in line for bonus payments as part of the transfers that took Andrew Robertson and Joe Gomez to Merseyside, respectively.
Such clauses are often included by the selling club in hope of maximising the departing players worth if he goes on to be successful at his new home.