In the UK tax is deducted ‘at source’ by your employer for anybody employed. You have a personal tax code, which tells your employer how much tax to deduct and pay on you behalf.
You then have a number of allowances you can claim against if you are eligible, to reduce your tax, which issues you an updated tax code.
in Australia, when we pay taxes, we get a receipt. The receipt shows what our taxes were spent on (lemmy.world)
I assume “Other purposes” is govt kickbacks to mining and gas companies 😬