41-146: Income Tax Reduction Worksheet 41-146 (2024)

Iowa · Iowa DOR · Used for tax years 2024

The 2024 Iowa Income Tax Reduction Worksheet (41-146) helps single filers who are not claimed as dependents determine whether they may owe less Iowa income tax. It uses income, deductions, and an age-based amount to calculate a figure to compare with IA 1040, line 12, then direct

Who files this form

The 2024 worksheet is for taxpayers using filing status 1, Single, who are not claimed as a dependent on another person’s Iowa return. These taxpayers may owe less tax by using it.

What you'll need

The worksheet uses amounts from:

  • IA 1040: Iowa taxable income on line 4 and the amount on line 12.
  • Federal Form 1040: The itemized or standard deduction on line 12 and the QBI deduction on line 13.
  • IA 1040 Schedule 1: The net operating loss carryover on line 17b.
  • Federal Form 4972: Lump-sum distributions of taxable income reported on line 8.

You also need the personal exemption deduction allowed for federal purposes and your age as of December 31, 2024.

Common mistakes

  • Do not forget to check the box in IA 1040, step 5, if you use the amount from worksheet line 3 on IA 1040, line 12.

Questions people ask

What amount goes on line 2?

Use your age as of December 31, 2024. Enter $9,000 if you were 64 or younger, or $24,000 if you were 65 or older.

How do I calculate line 1?

Add the amounts on lines 1a through 1f: Iowa taxable income, the federal itemized or standard deduction, the personal exemption deduction allowed for federal purposes, the QBI deduction, the net operating loss carryover, and the taxable lump-sum distributions listed on the worksheet.

How do I calculate line 3?

Subtract line 2 from the total on line 1.

Which amount do I put on IA 1040, line 12?

First, copy the amount from IA 1040, line 12, to worksheet line 4. Compare worksheet lines 3 and 4, then enter the smaller amount on worksheet line 5 and IA 1040, line 12. If you use the amount from worksheet line 3, check the box in IA 1040, step 5.

Official sources

All versions of 41-146