The error is visible on 1040 Line 34 which shows the amount overpaid. The amount I see matches the FTC before any investment interest expense adjustment (mentioned in my last post). Let's say I overpaid $100.
On 1040 Line 35 the "amount of the refund you want" is only $80. Reduced by the full $20 in investment interest expense.
Why Lines 34 and 35? It does not make sense to me.
