i can't say whether it will cause an audit or not. and so if it causes an audit and you have the documentation, what is the issue? You'll just explain it; you are not the first person to have this situation that the IRS will see. what is the alternative, as you don't want to report 100% of the transaction.
there is no such status as 'single head of household'.
Your only choices are going to be 'married-separate' or if you were legally separated for more than 6 months on 12/31/19 and you have dependents, then it is head of household.
