From the PSRS website: "Starting with the 2024 tax year, this exemption is no longer limited by your filing status or Missouri adjusted gross income. Please also note that the public pension exemption is capped at the maximum Social Security benefit of each individual in a household."
The amount of your combined pension and Social Security are capped at the $46,381 maximum Social Security benefit, but even this was phased out in previous years if your income was greater than $100,000 (if married, filing combined) or $85,000 (if single, etc.). Starting this year, you can get the $46,381 exemption no matter what you and your spouse made.
This is obviously only for Missouri taxes. PSRS Pensions are still fully taxable income on Federal tax forms.
