How does IRS win here?
Most IRS brackets and thresholds are tax adjusted [1][2]. Tax brackets certainly are, as is the personal standard deduction.
[1] https://www.irs.gov/newsroom/irs-provides-tax-inflation-adju...
[2] https://thehill.com/policy/finance/580961-irs-announces-infl...
https://taxdude.substack.com/p/inflation-is-a-double-stealth...
Here's a link actually explaining the process. https://taxfoundation.org/2021-tax-brackets.
It would appear the year over year cutoff for the calculation will lead to a bigger catch up in the next adjustment.
Then the IRS says that the 10% is income, and taxes me on that. They make more than they did when I was getting 1.5% on my money.