On a monthly basis the largest increase took place in East Anglia (11.6%) followed by Scotland (9.5%) and Greater London (5.2%).
Average deposits remain highest in London where they reached £170,328 in October.
Brian Murphy, head of lending at Mortgage Advice Bureau, said: “George Osborne’s Autumn Statement hammered home the government’s support for homeownership, with several policies aiming to improve both the supply and affordability of homes.
“This is sorely needed in the capital, where house prices remain much higher than in the rest of the country and saving up for a deposit can seem an impossible task. However, with average deposits rising across the UK, support is needed nationwide.
“The extension of the Help to Buy scheme for another year will give first-time buyers a longer window to buy with a 5% deposit and can be used in conjunction with the Help to Buy ISA for an additional boost to deposits.”
