HSBC has confirmed it is continuing with its phased reduction to the product switch window for existing mortgage customers, shortening the period from 150 to 120 days.

The change, effective from Friday 2 May, was communicated to intermediaries via the bank’s broker platform. It follows an earlier announcement from the lender confirming its intention to reduce the switching window from 180 days to just 90, in a bid to align systems and minimise disruption for brokers and customers.

HSBC said it was adopting an incremental approach in order to ease the transition and mitigate any operational impact. The latest reduction is part of a wider move to tighten internal timelines for product transfers, with the final change to 90 days expected to be announced in early June.

The product switch window refers to the timeframe ahead of a customer’s current rate ending during which they are eligible to secure a new deal with their existing lender. Many brokers have historically relied on longer windows to secure competitive rates in advance, particularly in volatile interest rate environments.

HSBC said further updates would follow via its intermediary communications channels.