The nation’s biggest home lender, Commonwealth Bank, is luring some of the industry’s top mortgage brokers to work for it with tantalising job offers that could net them up to $270,000 in pay every year, after controversially lifting royal commission-era bonus caps.

Two mortgage broking industry sources, who both requested anonymity so they did not damage their relationship with the bank, said more and more brokers were leaving small to medium-size independent firms to take jobs at CBA in the past year.