Retirement tax questions

In other words, specific dollar bills don't have name tags telling where they came from or when they were earned.  And you can designate contributions for the 2022 tax year up until April 15, 2023 (make sure to tell the bank in advance if you want to make a 2022 contribution).  But the overall amount you contribute for the 2022 tax year can't be more than your 2022 compensation from working.