Should I amend my 2018 taxes if I neglected to enter the full year of medical premiums that I paid while itemizing deductions?

[rtwilson1115]

I only entered one month of premiums I paid. Could this make a difference on my taxes owed?

[KatrinaB]

It depends on the total amount of medical expenses that you are currently claiming. You only get to deduct the portion of your 2018 medical expenses that exceed 7.5% of your Adjusted Gross Income (AGI). If your current medical expenses are over or close to being over the 7.5% threshold then you will benefit by including these expenses.