Reported transfer fees rise almost every year, and the increase outpaces general inflation by a wide margin. The mechanism sits in how clubs are financed and how contracts work.
Broadcast money enters a fixed-size market
Television and streaming rights have grown enormously, and the money flows to clubs that all want to improve at the same time.
The number of genuinely elite players does not grow with the broadcast deal, so more money chases roughly the same pool of talent.
Prices rise the way they do in any auction where bidders get richer and the lots do not increase, which is most of the story.
A contract is what is actually being sold
A player under contract cannot simply leave, so a club wanting to sign them must compensate the selling club for terminating that agreement early.
The fee is therefore the price of the remaining contract, which is why length matters so much and why clubs extend contracts on players they intend to sell.
A player approaching the end of their deal loses the selling club its leverage entirely, which is a strong incentive to sell a year earlier than sporting logic would suggest.
Accounting spreads the cost and hides the size
Fees are written off across the length of the contract rather than charged in full in the year of purchase, so a large fee on a long deal produces a modest annual charge.
Sales, by contrast, are recognised immediately as profit against whatever value remains on the books, which makes selling an academy player especially attractive.
That asymmetry shapes squad building, and explains why clubs under financial constraint sell homegrown players first.
Agents and intermediaries are paid from the same pot
Representatives earn from moves rather than from stability, which builds a structural incentive towards transfers happening.
Payments are also made to intermediaries on both sides of a deal, adding cost that is reported as part of the overall transaction.
Regulatory attempts to cap these fees have been contested repeatedly, and the market has proved adept at restructuring payments.
Financial rules changed the shape rather than the total
Spending controls tie outgoings to revenue, which restrains smaller clubs more than large ones and entrenches existing hierarchies.
Clubs respond with structures that fit the rules: instalments, add-ons triggered by appearances, loans with obligations to buy, and swaps valued generously on both sides.
The headline figure becomes less informative as a result, since a reported fee may be paid over years and partly conditional on events that never occur.