Share your insights or perspective on the financial matter presented in the input.

Do I have to explain the source of *all* income on my taxes?
@RonJohn's answer for pallet of $20's is right for the specific case. For the general case of all income, it depends on whether or not the the source of the income was potentially criminal. https://www.forbes.com/sites/timtodd/2015/11/16/a-win-for-the-5th-amendment-at-the-tax-court/ I am not a lawyer, but reading that article, one needs to provide the total amount, but not the source if there's a risk of self-incrimination.