How easy is it to change banks if they are charging higher mortgage rates?

After Westpac became the first of the four major banks in Australia to increase interest rates for its variable home loans, Prime Minister Scott Morrison said customers who were unhappy with the bank's decision should switch their bank. But how easy is it to switch bank? Does going to another bank always ensure a better deal? Finance adviser Bishwas Bhattarai had this to say during his monthly segment on SBS Nepali.

The Turnbull government says banks won't be the only companies to benefit from tax cuts. (AAP) Source: AAP