topic IA 1040 Step 4 Line 2 error in State tax filing

IA 1040 Step 4 Line 2 error

Brian Frank — Wed, 18 Mar 2026 23:33:11 GMT

The expanded instructions for the 2025 IA 1040 Line 2 states:

Enter your federal taxable income as reported on federal 1040, line 15. If the amount of federal taxable income is zero, subtract the amount reported on IA 1040 lines 1d and 1e, and federal form 1040 line 13b from the amount reported on IA 1040, line 1c and report this amount (this amount can be negative).

Turbo tax does not appear to subract the federal form 1040 line 13b amount. This results in tax due when the amount on federal form 1040 line 13b is large enough to make IA 1040 line 2, 0

Re: IA 1040 Step 4 Line 2 error

DavidD66 — Wed, 25 Mar 2026 00:52:40 GMT

Can you clarify by providing the amounts from your tax return on those lines:

Federal 1040 Line 15

Federal 1040 Line 13b

IA 1040 Line 1c

IA 1040 Line 1d

IA 1040 Line 1e

Re: IA 1040 Step 4 Line 2 error

Brian Frank — Thu, 02 Apr 2026 22:01:12 GMT

Federal 1040 Line 15 = 0

Federal 1040 Line 13b =15,442

IA 1040 Line 1c = 23,180

IA 1040 Line 1d = 15,750

IA 1040 Line 1e = 0

Turbo tax puts 7,430 on IA 1040 Line 2 and based on the IA insturctions it should be 0.

I have prepared the return in Taxslayer and another program and theirs comes to the correct place based on the IA 1040 instructions.