HSA mistaken distributions. If amounts were distributed during the year from an HSA because of a mistake of fact due to reasonable cause, the account beneficiary may repay the mistaken distribution no later than April 15 following the first year the account beneficiary knew or should have known the distribution was a mistake.
For example, the account beneficiary reasonably, but mistakenly, believed that an expense was a qualified medical expense and was reimbursed for that expense from the HSA. The account beneficiary then repays the mistaken distribution to the HSA.
It'ss up to the HSA administrator to accept your stated reason that the distribution was a mistake and to allow a return of mistaken distribution.
