Millions of households are at risk of losing benefit payments this Christmas if they fail to act on deadlines to switch to Universal Credit.

The Department for Work and Pensions (DWP) is moving all legacy benefit claimants to Universal Credit under a process called managed migration.

Households receive letters instructing them to complete the move within three months or risk having their payments stopped.

Unlike last year, when the DWP granted a 30-day extension for deadlines falling between…