Just tell me what you want, and let me as SME figure out how to get you there.
When you're in a high-enough tax bracket (in taxation regimes where such high tax-brackets exist), adding a marginal dollar to your net income becomes impractically expensive for the company, compared to basically anything else the company could offer you.
For some people, in some places, getting an extra $20k/yr tacked onto your net income, would cost your employer more than just, say, hiring you a well-paid full-time personal assistant, with the skills necessary to do enough of your job that you go from "overworked" to "takes off early most days to go play golf."
Googling "personal assistant salary", it looks like the average in the US is ~$50k/year. So a personal assistant would cost more, but it is in the right ballpark where that could be a better choice than that raise if this is the reason for the raise:
> with the skills necessary to do enough of your job that you go from "overworked" to "takes off early most days to go play golf."