I hate financial years. They confuse me endlessly. I have a friend who is an accountant that does my taxes for me even though mine are apparently really simple to do because I'm dyscalculiac and am guaranteed to break even the simplest thing.
Taxes in general I don't think I mind the idea behind it (because privatising everything seems like it will lead to hell and not even paved in good intentions) but the method seems somewhat flawed. "Normal" people can't really "get ahead" (ie no real change in income) because every time they move up an income bracket they're suddenly taxed even more (because theoretically they can afford it because they're getting paid more) so end up with the same take home pay as they had before they moved up an income bracket but if they were previously in a low enough one that required Centrelink support they've now lost that Centrelink support so are worse off o_O
Meanwhile on the other side of town anyone rich enough to hire entire accounting firms are able to basically write off everything and essentially not pay any tax at all, or so rumour and hearsay has it.
And definitely do not tax businesses (or impose environmental regulations on them) because...economy.
I don't know if it's just the cutoffs that are potentially problematic or whether things would be better or worse if it was flat tax (have heard various arguments for and against that and only barely understand any of them).
Now my head hurts. Why did I answer this again? XD Was this even the kind of answer you wanted? Sorry! Now I shall crawl back into my slugskin and hide until food or realising I need to do more work drags me out (probably with slugskin in tow as it's cold in my house today).