Bayern Munich chief Uli Hoeneß has provided details on the terms of the loan deal, which saw Nicolas Jackson leave Chelsea earlier this summer.
Jackson left the Blues on deadline day to complete a loan move to the Bundesliga giants, which also includes an obligation to buy in the contract.
Chelsea have banked a £14.2million loan fee from Bayern for the Bundesliga champions to be able to sign Jackson for the season ahead.
The Blues could then receive a further £56.2million for the move to be made permanent next summer, provided certain conditions are met, meaning Chelsea could earn £70million from the deal.
Jackson will now compete with former Tottenham Hotspur striker Harry Kane for a starting spot at Bayern this season under manager Vincent Kompany.
Hoeneß, a chief at Bayern, has provided more insight into the agreement which saw Jackson leave Chelsea. Hoeneß has claimed that the obligation to buy clause is unlikely to be activated next summer, as well as why Bayern are not paying the full amount of the loan fee.
"The player and his agent contribute for €3m, so we pay €13.5m loan fee," Hoeneß said in an interview with SPORT1 in Germany.
"There will definitely not be a permanent contract. That only happens if he plays 40 games from the start, it will never happen."
Chelsea decided to sanction Jackson's exit after completing the signings of Joao Pedro and Liam Delap to strengthen their striker options. The move was temporarily halted after Delap suffered an injury, but Jackson was still granted a move to the Allianz Arena on deadline day.