If my husband and I were married in Oct. 2020, can we use my husband’s HSA to reimburse any medical expenses incurred by me during all of 2020? Or only after the date we were married?

My husband has HSA money to use, and we just found out that he can use his HSA money to cover a spouse’s medical expenses.…

View More If my husband and I were married in Oct. 2020, can we use my husband’s HSA to reimburse any medical expenses incurred by me during all of 2020? Or only after the date we were married?