For what, you ask? Good question.

While there are numerous income streams to note on President Biden's tax return, which is jointly filed with his wife Jill Biden, the eye-popping income figure to note can be found on line 6a of Form 1040. For those who aren't tax professionals, line 6a is where an individual or couple filing jointly would list the amount of Social Security benefits they received in the previous calendar tax year (in this instance, 2021).

Last year, the Biden's claimed $54,665 in Social Security income on a joint basis, which works out to about $4,555 each month. Even taking into account that this $4,555 figure is the combination of Joe's and Jill's monthly payout, this is well above what the average retired worker brings home each month from Social Security.