Authorised deposit-taking institutions thinking about whether to follow RaboDirect and Westpac, which have both launched notice accounts this year, will be encouraged by the news that Investec Bank (Australia) has had strong take-up of its Liberty 32-Day Notice account.Investec launched its notice account in 2011, as part of an expansion of its retail product set.Like the RaboDirect and Westpac accounts, depositors must give notice before making a withdrawal.The structure of notice accounts falls between an at-call account and a term deposit. Deposits can be made at any time and the account remains open after a notice period.Notice accounts offer variable rates, which are higher than at-call rates and sometimes higher than term deposit rates.Importantly, deposits in notice accounts will qualify as stable deposits when it comes to determining the run-off rates that will apply to Basel III liquidity coverage ratios, which take effect next year.Investec's head of private client services, Ivan Katz, was not giving away any details, but he said the Liberty 32-Day Notice account had been a "very successful" product for Investec.According to Australia Prudential Regulation Authority data, Investec's household deposit book grew 37.5 per cent and its business deposit book grew 16.6 per cent last year. These figures make it one of the top performers in the deposit market (although its balances are very small).Katz said the bank has had good take-up across all its channels - private clients, adviser-directed, high income professionals and online retail. "It has been significant," he said.Investec's head of retail deposits, Shehan Rajakumar, said customers liked the fact that returns were similar to term deposit rates and they could make deposits at any time."That helps them with their cash management," Rajakumar said.Investec is offering a rate of 4.14 per cent on its notice account. It has made a commitment to keep the rate at least 100 basis points above the cash rate.RaboDirect launched its notice account last week with an offer of 4.65 per cent.Rajakumar said the bank had some enhancements planned for later this year. Westpac and RaboDirect offer a choice of notice periods and rates."Basel III is having an impact on product design. We expect to see more notice accounts coming into the market," he said.