Best Isa Rates 2025 Australia. Compare our cash isa interest rates, deposit terms and account limits in the following table. An isa is a savings account that allows you to save or invest without paying tax on the interest, growth or returns.

An isa is a savings account that allows you to save or invest without paying tax on the interest, growth or returns. We check the best cash isas, lifetime isas and fixed isas every day to help you find the best place to put your money.