Explainer · evergreen
Why a £100m signing does not cost £100m this year
In one line: Transfer fees are spread across contracts in club accounts. Amortisation, explained: the yearly cost, the profit on sale, and why it moves PSR.
When a club pays £100m for a player on a five-year contract, almost no club account shows a £100m cost that year. The fee is spread across the contract — an accounting mechanism called amortisation — and understanding it explains a surprising share of transfer-market behaviour.
The mechanism in one formula
Annual amortisation = transfer fee ÷ contract length. Our £100m signing on five years costs the accounts £20m a year, every year, for five years. The player's wage sits on top of that, separately. The club paid the cash in instalments or not; the accounting cost is the same straight line.
The book value — and the profit trick
Each year the unspent remainder is the player's net book value: after two years of our example, it is £60m. Now the club sells him for £75m. The accounts record a profit of £15m (sale price minus book value) — in the year of sale. This is why clubs can report big transfer profits in a single window: selling players late in their contracts converts small book values into large accounting gains.
It also explains the academy asymmetry: a homegrown player was never bought, so his book value is near zero, and any sale fee lands almost entirely as accounting profit. The classic deadline-day move — selling a graduate to balance the books — is this mechanic wearing a shirt.
Why PSR makes it strategic, not cosmetic
The Premier League's Profitability and Sustainability Rules assess clubs on aggregate adjusted losses over a rolling three-season period — historically a £105m threshold before permitted add-backs and owner equity, per the League's own published guidance on PSR calculations. Amortised transfer cost counts against that; amortisation is therefore spending control with a delay: a longer contract lowers the yearly charge, which is why long deals became a financial instrument as much as a loyalty signal.
The honest caveats
Amortisation is accounting, not cash: fee payment schedules are negotiated separately, and cash flow can diverge from the straight line. Rules evolve — squad-cost ratios and new spending controls have been layered on since the PSR cases of 2024 — and different competitions (UEFA's rules, other leagues) count differently. But the core mechanic never changes: fee ÷ years = the yearly number that moves everything else. The desk's transfer amortisation calculator runs exactly this arithmetic, with the working shown.
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