Australia's "Big Four" banks raised their home loan variable interest rates on Thursday, after the country's central bank hiked rates earlier this week, Reuters reported. Commonwealth Bank of Australia, Australia and New Zealand Banking Group, National Australia Bank and Westpac Banking Corp increased their mortgage rates to match the hike announced by the central bank. The new rates for CBA and ANZ customers will take effect from Aug. 12, while Westpac's rates will apply from Aug. 18. The banks also raised rates on some of their products for customers with savings accounts and deposits. Reserve Bank of Australia lifted its cash rate by 50 basis points to 1.85%, marking an eye-watering 175 basis points of hikes since May in the most drastic tightening since the early 1990s. Read more.