The customer-owned bank has reported writing $272 million worth of loan approvals in 2019, which was its all-time record.

It said the loan book grew by 14 per cent for the year, which was four times the speed of system growth, taking total loans to $886 million.

Its housing finance market share increased by 29 per cent for the year, while total assets climbed past $1.06 billion.

"Since becoming a customer-owned bank in 2017, consumers have continued to put their trust in us, resulting in a 10 per cent growth in customers overall in a two-year period," chief executive Paul Ranson said.

"We've undertaken a significant amount of work to support our future growth and sustainability in the Tasmanian market ..."

He said that included a new core banking system to improve customer experience and the Bank of useful ideas initiative.

Mr Ranson described the Bank of useful ideas as "an innovative new community partnership model, which we recently ran in Burnie with positive results".

The project supports ideas from the community.

Bank of us is taking part in the federal government's First Home Loan Deposit Scheme, aimed at helping more lower and middle income people become first home buyers.

The scheme provides guarantees of up to 15 per cent of property value for eligible first home buyers, meaning they can buy with as little as a 5 per cent deposit.

"The scheme complements our already competitive home loan interest rates, our partnership with Wilson Homes, Tasmania's largest residential builder, and our strong online and physical presence across the state," Mr Ranson said.

"Providing the scheme is one more way we can support Tasmanian first home buyers so they can achieve their dream of owning their own homes."

The bank will mark its 150^th year in 2020.