Savings bonds — offered by registered Australian life insurance companies — operate in a similar way to superannuation funds, but with no access restrictions. “In contrast, investment bonds offer sub-25 per cent or even lower rates after you apply the allowable tax offsets.,” he said. However, a 30 per cent tax offset applies — but in this case it is a use-it-or-lose-it arrangement. You can direct who is to receive the proceeds from a savings bond when you die. Cost-wise, most savings bonds are on par with retail superannuation funds, but without the economies of scale now existent in the $4.5 trillion superannuation industry.