Hi there, Thank you very much for your reply. The screenshot is exactly the place where I face a major question. Comparing the CSA1099R with my OPM Summary of Payment report, I can determine that Box 5 is composed entirely of my FEHB plan premiums and my Medicare premiums. My understanding (and I may be wrong) is that these are pre-tax dollars, and thus do not qualify for deduction on Schedule A, Medical and Dental Expenses. The program simply asks to enter the amount in Box 5 which is for medical insurance premiums, and I enter the full amount, which then goes automatically into Schedule A in TurboTax. So the question is really a tax question about deducting insurance premiums that have been paid (as I understand it) with pre-tax dollars.
