FSA Contribution Confusion With Husband

Last year, my husband and I both contributed $5,000 to our own, different FSA accounts. We didn't realize that $5,000 was the max. I have fully exhausted reimbursement on my account but we have not touched a dime out of my husband's account. How will this affect our taxes this year? Do we need to claim this as income or do we count this as a loss? Thank you!