how to split social security income?

[Ken Blaine]

I tried to find answer by searching archives but can't figure out how to
search. Very different bulletin board than I've seen before. After selecting
'english' I see no search box.

Anyway, my actual question involves social security income. My medical
insurance is deducted automatically. For example 1800(gross) less 100 for
medical =1700 net automatically deposited to checking. How do I enter the
100 to medical expenses without getting an imbalance?

Thanks
Ken