Spurs sit two points clear of West Ham in 18th place and hold a 12-goal advantage on goal difference. West Ham need to beat Leeds United at the London Stadium and hope that Everton defeat Tottenham at the Tottenham Hotspur Stadium for any chance of survival.
A draw for Spurs is enough to relegate West Ham regardless of what happens elsewhere.
For Tottenham, the financial arithmetic is severe. Ranked among the ten wealthiest clubs in world football, they would lose access to the Premier League broadcast deal worth close to £150 million per season, which dwarfs the parachute payment of around £45 million they would receive in compensation.
The club also collected £71.6 million from the Champions League this term — revenue that would disappear overnight.
Former chairman Daniel Levy had inserted 50 per cent wage-reduction clauses into player contracts in the event of relegation, which provides some protection, but matchday income and commercial revenues would still take a significant hit.
West Ham United's situation is arguably more fragile. The club recorded losses of £104 million in its most recent published accounts, with revenues already declining and a warning of a potential "liquidity shortfall" during the summer of 2026.
Analysts suggest the Hammers would need to raise well over £100 million in player sales if they go down, with Jarrod Bowen and Lucas Paquetá among the assets most likely to be moved on.
Most first-team players at West Ham also have wage reduction clauses of around 50 per cent triggered by relegation, though that cuts both ways — it eases the wage bill but underlines how precarious the club's financial base has become.
Burnley and Wolverhampton Wanderers have already been relegated. One of the two London clubs will join them when the final whistle blows on Sunday.