Reply to self: Form 1040 is much shorter for 2018 and then it refers to a bunch of schedules. Schedule 5, has a line 71 for extension payments. Schedule 5 totals show up on Line 17 of 1040. IRS instructions say...
If you got an automatic extension of time to file Form 1040 by filing Form 4868 or by making a payment, enter the amount of the payment or any amount you paid with Form 4868. If you paid by debit or credit card, don’t include on line 71 the convenience fee you were charged. Also, include any amounts paid with Form 2350.
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My state extension payment does show up on the state forms in TT.
When I go into Forms mode in TT I see the Tax Payments form in the list. When I open it, it shows estimated and extension taxes lines. On the extension lines (line 9), it sees the money I sent in for state, but not for Fed. So I manually enter the amount sent to feds and life is good. The total I owe IRS is now correct. (1040 Schedule 5 was not in the list until I manually entered extension amount as noted.)
Somehow I must not have told TT that I had filed Fed Extension even though it knew I filed state.
