The most expensive Bundesliga summer transfers of 2025 | OneFootball

The Bundesliga reinforced its status as a major net exporter of talent during the 2025 summer transfer window, as its clubs generated an impressive £758.9 million in sales while spending a more modest £563.7 million.

This significant surplus was fuelled by the departures of high-profile stars like Florian Wirtz and Hugo Ekitike to the financially dominant Premier League.

Here are the five most expensive signings of the window, representing the biggest reinvestments of that considerable transfer income.

The most expensive Bundesliga summer transfers of 2025

5. Jobe Bellingham – Sunderland to Borussia Dortmund (£27.8m)

Following in the footsteps of his renowned brother Jude, Jobe Bellingham completed his own high-profile move, joining Borussia Dortmund in a deal worth £27.8m.

The club signed the 19-year-old after a sensational campaign in which he earned the EFL Championship’s Young Player of the Year award for steering Sunderland to promotion. Moreover, he quickly showcased his readiness for a bigger stage with a series of standout performances for Dortmund at the recent FIFA Club World Cup.

BVB have invested in his dynamic, all-action style, signing him to a five-year contract. This move continues their strategy of securing and developing Europe’s most promising young talents.

Read – The most expensive transfers involving English teenagers

4. Malik Tillman – PSV Eindhoven to Bayer Leverkusen (£30m)

In a significant move to bolster their offence, Bayer Leverkusen secured the return of US international Malik Tillman to the Bundesliga. They paid PSV Eindhoven £30m for the attacking midfielder. This fee reflects a stellar season in the Eredivisie, where the 23-year-old demonstrated his prowess in the final third with 12 goals and 10 assists.

A former Bayern Munich prospect, Tillman now returns to Germany as a proven performer. As a result, Leverkusen is banking on his midfield versatility to provide the firepower needed to compete at the top of the table.

3. Jarell Quansah – Liverpool to Bayer Leverkusen (£35m)

Bayer Leverkusen also addressed a key defensive need by acquiring centre-back Jarell Quansah from Liverpool for £35m. Leverkusen prioritised the 22-year-old in order to add physicality and ball-playing composure to their backline.

Having made 28 appearances for Liverpool last season, Quansah brings valuable top-level experience. For that reason, some consider his signing a crucial component of Leverkusen’s bid to mount a sustained challenge for the Bundesliga title.

Read – Every Premier League team to break their transfer record this summer

2. Luis Díaz – Liverpool to Bayern Munich (£65.5m)

Early in the window, Bayern Munich sent a clear message to their rivals, signing Colombian winger Luis Díaz from Liverpool for £65.5m. The Bavarian outfit acquired the 28-year-old to inject explosive pace and unpredictability into their attack.

As a proven entity in the Premier League, Díaz brings a relentless work rate and a directness that will complement Bayern’s existing offensive stars. Furthermore, the major outlay demonstrates the champions’ commitment to reinforcing their squad from a position of strength.

1. Nicolas Jackson – Chelsea to Bayern Munich (£70.5m)

The summer’s most expensive transfer was sealed in the final hours of deadline day. In a complex deal, Bayern Munich signed Chelsea striker Nicolas Jackson for a fee worth up to £70.5m. The move is structured as an initial loan; however, it includes a conditional obligation to buy, which is tied to performance metrics.

Bayern signed the 24-year-old Senegalese forward to provide crucial depth and a different attacking profile. This was particularly important given concerns over Harry Kane’s long-term fitness.

Before the move, Jackson scored 30 goals in 81 appearances for Chelsea. Ultimately, it’s a high-stakes gamble from the champions, underscoring their aggressive approach to securing silverware.

Read – Every Deadline Day deal in the Premier League in summer 2025

See Also – Five unforgettable transfer Deadline Day stories

Follow The Football Faithful on Social Media:

Facebook | Instagram | Twitter | YouTube | TikTok