This is certainly one of the most effective ways for “older” people to reduce their tax. This is referred to as a “Transition to Retirement” strategy and involves accessing your superannuation while still working. When the superannuation contribution tax of 15% is less than your marginal tax rates of 31.5% to 46.5% this strategy is effective.  It is even better when you are older than 60 years old (when the amounts withdrawn from superannuation are tax free), and even better again when you are older than 65 years old (when you are not limited to how much you can withdraw from superannuation).