We’ve taken 6000 pages of tax law and turned it into one easy-to-use software. Our tax calculations are based on the tax legislation for each financial year, starting with the 2021/22 Financial Year. And don’t worry, we keep up with the times! Every new financial year, we update our calculations to match any tax law changes.

Now, we know the Australian tax system can be a bit of a jungle. That’s why we can’t backdate our calculations to earlier years—blame it on the grandfathering of tax rules and all that jazz. But fear not! If you’ve got your tax returns sorted for those pre-2021/22 years, just upload them into the Spare Tank It’s like a time capsule for your tax records, keeping everything safe and sound.