@Michael 505 either use the download version of TT 2023 or use this website:
https://www.dinkytown.net/java/1040-tax-calculator.html
also, remember that IRMAA tiers for 2025 won't be set until next October, so be mindful not to cut your 2023 MAGI too close to the tranche limit.
this website is excellent:
https://thefinancebuff.com/medicare-irmaa-income-brackets.html
