Why stop at a paltry 90 percent? We shouldn't stop until the rate is over 100.
Funny you should mention that.
Astrid Lindgrin was a Swedish author of children's stories who became fairly wealthy.
At the same time she was becoming wealthy, Sweden was ramping up it tax rates, especially on the wealthy, to pay for their burgeoning cradle-to-grave society...
In 1976, Lindgrin's nominal tax rate was.... 102%.
Yep, she owed the government more than she earned, because she was double taxed because she was self employed.
So, she wrote a scathing short story about it... and a lot of people say that short story fueled growing discontent among the population that resulted in the Socialist "MOAR TAXES, MOAR FREE *expletive deleted*it!!!" Democratic party being crushed and swept from power for the first time in 40 years.
Tax laws were changed, but... Lindgrin continued to support the party that taxed her blind until she died in 2002.