Great article on Trussle, and how they are having an impact! With a lot of people resolving to manage their money better in 2018, it is little surprise January is the most popular month of the year for switching a mortgage. For the two million people currently on a standard variable rate (SVR), switching to the best market deal in January could put £4,000 back in your pocket over the course of the year, according to online mortgage broker Trussle.