Key Takeaways:
- Arsenal confirmed Jakub Kiwior’s permanent move to Porto after his loan spell last season
- Porto have agreed a €17 million fixed fee with the possibility of an additional €5 million in bonuses
- Kiwior made 25 league appearances as Porto captured their first Primeira Liga title since 2021/22
Transfer Details and Financial Terms
Arsenal have officially completed the transfer of Polish defender Jakub Kiwior to Portuguese champions Porto, marking their inaugural outgoing deal for the forthcoming summer transfer period. Porto, a major force in Portuguese football, confirmed last week that they had exercised the buyout clause stipulated in the player’s loan agreement. Subsequently, Arsenal have now ratified the move.
The transfer involves a guaranteed payment of €17 million, with the total fee potentially rising by an additional €5 million if specific bonus-related conditions are fulfilled. Additionally, Arsenal have ensured a small, set sell-on percentage should Kiwior be transferred again in the future.
🚨 Arsenal FC confirm Jakub Kiwior has joined FC Porto permanently 🇵🇹
The defender signs a four year deal after Porto triggered the purchase option, with the total fee potentially rising to £19m.
A permanent move after helping Porto win the league title 🏆 pic.twitter.com/hJ3uUXx4NM
— Speedline (@speedlinexx) May 12, 2026
Kiwior’s Impact at Porto and Arsenal
The 26-year-old centre-back agreed terms with Porto for a contract extending until the summer of 2030. Last season, Kiwior spent his campaign on loan at the Estádio do Dragão, quickly establishing himself as a first-choice defender by making 25 league appearances. His contributions helped Porto secure their first Primeira Liga championship since the 2021/22 campaign.
Kiwior originally joined Arsenal three years prior, arriving from Spezia after making his mark at the Slovakian club Zilina. During his tenure in North London, he made 44 Premier League appearances for the Gunners before making the switch to Portugal.
