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Step 10 - Underpayment of Estimated Tax Penalty and Donations

Note: Only complete this step for late-payment penalty for underpayment of estimated tax or to make a voluntary charitable donation.

Line 33

Late-payment penalty for underpayment of estimated tax

If you

  • have a tax liability greater than $1,000 after subtracting your withholding, pass-through withholding payments, and credits, or
  • were required to make estimated tax payments and failed to pay the required amount by the payment due dates, 

you may owe a late-payment penalty for underpayment of estimated tax. See Form IL-2210 for details.

Note: If you are 65 years of age or older and you permanently live in a nursing home, or if at least two-thirds of your federal gross income is from farming, you are not required to make estimated tax payments and are not subject to a late-payment penalty for underpayment of estimated tax.

Note: You do not owe a late-payment penalty for underpayment of estimated tax if you were not required to file a Form IL-1040 last year.

Note: If you owe this penalty, you should consider increasing your withholding or the amount of your estimated tax payments. For more information, see the Form IL-1040-ES Instructions and Form IL-W-4, Employee’s Illinois Withholding Allowance Certificate.

Let us figure your penalty and bill you

Figuring your own penalty can be difficult. We encourage you to file your Form IL-1040 and pay the tax you owe without including any penalty. If you owe this penalty, we will figure the amount and bill you.

Note: If you annualized your income, you must complete Form IL-2210. See the instructions for Line 33c.

Line 33a

Farmers

Check the box if at least two-thirds of your total federal gross income came from farming. Total federal gross income includes your spouse’s income if your filing status is “married filing jointly.”

Federal gross income from farming

“Federal gross income from farming” is the amount of income you received from your participation in the production of crops, fruits, fish, livestock (used for draft, breeding, or dairy purposes), or other agricultural products. This includes income from the operation of a stock, dairy, poultry, fruit, or truck farm, plantation, ranch, nursery, range, or orchard – regardless of whether the operation is organized as a sole proprietorship, a partnership, an S corporation, or a trust. “Federal gross income from farming” also includes a share of crops produced in exchange for the use of the land. See IRS Publication 225, Farmer’s Tax Guide.

“Federal gross income from farming” does not include payments from the sale of farmland and farm equipment, nor does it include income received by a custom grain harvester who performs grain harvesting and hauling services on farms he or she does not own, rent, or lease. It also does not include the wages of a farm employee or cash rent.

Line 33b

Nursing home residents

Check the box if you or your spouse are 65 years of age or older and permanently living in a nursing home.

Line 33c

Annualized income

Check the box if you annualized your income on Form IL-2210, Step 6.

Attach: Form IL-2210.

Line 33d

Previous year Form IL-1040 not required

Check the box if you were not required to file a Form IL-1040 in the previous tax year.

Line 34

Donations

You may contribute to one or more charitable contribution funds. Contributions to the funds may be in any amount of $1 or more and will decrease your refund or increase your balance due.

Note: You cannot change your contributions to these funds on an amended return.

Attach: Schedule G.

Line 35

Add Lines 33 and 34.