Shouldn't it be physically possible to be taxed so much that your income lowers compared to what it was previously?
Like you would have to have a 20% bump in pay, and an increase in taxes that's like 25-50% or something insane. Of course if you cherry pick data, and pick a high ceiling, and then just barely pass a threshold you can probably make it appear, but that would be a pretty well defined statistical anomaly. And, not very much money.
edit: and this is assuming that taxes literally just don't work the way that they do, this is WITH broken tax logic.
of course, the idea of a progressive income tax is that at a certain point, it becomes untenable to hold so much money. But unless taxes are literally 100% it's hard to make the argument that you're "losing" money.
yeah, with how tax brackets actually work, this should be physically impossible, i'm just pointing out that even if it didn't it would STILL have to be a pretty substantial increase in tax, that you could easily calculate.