On Oct. 11, 2027, the EU, U.K., and Switzerland will move to T+1 securities settlement. The date may seem distant, but the challenges are considerable – and simply following the example of U.S. firms that went through the same transition in 2024 will not fully resolve them. Compliance teams in asset managers must prepare now, or their firms will struggle, experts warn.

Ruth Prickett graduated from Cambridge University with a BA hons in History and has specialized in business and finance journalism for the past 20 years. She was editor of Financial Management, the magazine...