Oh, I'm really loving having to think of all the same ideas I already suggested over the last 10-15 years so I can add them again because they weren't trending well enough to be included in the new ideas exchange.
Flat rate extra tax does not work well for casual employees. We are often asked to deduct an extra 5 or 10 percent and have to work this out manually each week.
It would be great if we could use a % option for extra tax in addition to the flat rate. Flat rate is fine for permanent employees but if your hours fluctuate significantly, it's not okay.
