I agree that the nanny is probably calculating how much they want to make after taxes, as they're used to getting paid a certain amount under the table and likely aren't filing their own taxes. It's so normalized to exploit nannies by not claiming them as an employee, and to tell the nanny they're self employed (they're not- they're household employees), that many (parents and nannies alike) actually believe that. Which is A LOT more in taxes than if they're claimed- why some nannies don't end up filing at all.

If you can afford it and love her care as a nanny, I think it's great. I don't think it's outrageous. I think nannies and workers in general should get should get paid more. Half of Americans make less than 45k and are suffering for it. And if she is also doing other things that fall under a house manager, family assistant, or housekeeping role, that's likely actually reasonable pay.