@HeavenlyPossum A slight tangent but it's interesting how misunderstood tax brackets are, at least how they work here in the uk (and back in NZ it was the same).
People near a tax bracket complain that their next payrise would cause them to take less money home after tax, not understanding the new tax is only on money in that bracket. I sometimes wonder if it was structured in a way to confuse more people into shouting down taxes.