Internal Revenue Service (IRS), U.S. Department of the Treasury · United States

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Schedule 3 (Form 1040), Additional Credits and Payments

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JustFill only helps you fill the Schedule 3 (Form 1040) PDF — it does not calculate your credits, file or e-file your tax return, or attach the schedule to your Form 1040 for you; you submit the completed schedule with your return to the IRS yourself.JustFill is not affiliated with Internal Revenue Service (IRS), U.S. Department of the Treasury. This is an independent third-party tool to help you complete Schedule 3 (Form 1040). Always download the current blank form from the official source and verify your completed copy before signing or submitting. Official Schedule 3 (Form 1040) from Internal Revenue Service (IRS), U.S. Department of the Treasury

Quick answer

Schedule 3 (Form 1040), Additional Credits and Payments, is the IRS schedule taxpayers attach to Form 1040 to claim nonrefundable credits — like the foreign tax, education, and child-care credits — and to report other payments and refundable credits, such as the net premium tax credit. Its totals carry to Form 1040 lines 20 and 31. JustFill lets you fill Schedule 3 online free by auto-detecting every line.

Form
Schedule 3 (Form 1040)
Issued by
Internal Revenue Service (IRS), U.S. Department of the Treasury
Country
United States
Cost to fill
Free

What is Schedule 3 (Form 1040)?

Schedule 3 (Form 1040), Additional Credits and Payments, is a two-part IRS schedule that attaches to your Form 1040, 1040-SR, or 1040-NR. Part I covers nonrefundable credits — the foreign tax credit, the credit for child and dependent care expenses, education credits, the retirement savings contributions (saver's) credit, residential energy credits, and other nonrefundable credits — and its total flows to Form 1040, line 20. Part II covers other payments and refundable credits, such as the net premium tax credit, amounts paid with a filing extension, excess Social Security tax withheld, and the credit for federal tax on fuels, with its total flowing to Form 1040, line 31. You use Schedule 3 when these credits or payments don't appear directly on the main Form 1040 page. With JustFill you can fill Schedule 3 online free — the AI detects every line and box automatically, so you type or dictate your figures in any browser, no Adobe Acrobat or install required, even on a scanned or non-fillable copy.

Who fills out Schedule 3 (Form 1040)?

  • Taxpayers claiming the foreign tax credit, education credits, or the credit for child and dependent care expenses on top of their Form 1040
  • Homeowners claiming the residential clean energy or energy efficient home improvement credit carried over from Form 5695
  • Filers reporting the net premium tax credit after buying health coverage through the Marketplace (computed on Form 8962)
  • People who paid tax with a filing extension (Form 4868) or had excess Social Security tax withheld by two or more employers
  • Tax preparers and individuals whose credits or payments don't fit directly on the main Form 1040 page

Field-by-field breakdown

What each section of Schedule 3 (Form 1040) asks for. JustFill’s AI will detect these fields automatically when you upload the PDF — review the breakdown below so you know what to enter.

Name & SSN header

Enter the name(s) shown on your Form 1040 and your Social Security number exactly as they appear on the return Schedule 3 attaches to.

Line 1 — Foreign tax credit

Enter the foreign tax credit, attaching Form 1116 if it is required. This is a Part I nonrefundable credit for income taxes paid to a foreign country.

Line 2 — Child and dependent care credit

Enter the credit for child and dependent care expenses from Form 2441, line 11 — for care costs that let you (and a spouse) work or look for work.

Lines 3–4 — Education & saver's credits

Line 3 carries education credits from Form 8863, line 19 (the nonrefundable portion); line 4 is the retirement savings contributions (saver's) credit from Form 8880.

Lines 5a–6 — Energy & other nonrefundable credits

Lines 5a and 5b report the residential clean energy and energy efficient home improvement credits from Form 5695; lines 6a–6z capture other nonrefundable credits such as the general business credit (Form 3800) and adoption credit (Form 8839).

Line 8 — Total nonrefundable credits

Add lines 1 through 4, 5a, 5b, and 7. Enter the total here and on Form 1040, 1040-SR, or 1040-NR, line 20 — this is where Part I connects to your main return.

Part II — Lines 9–15: payments & refundable credits

Report the net premium tax credit (Form 8962, line 9), amount paid with an extension request (line 10), excess Social Security and tier 1 RRTA tax withheld (line 11), credit for federal tax on fuels (Form 4136, line 12), and other items on 13a–13z; line 15 totals them onto Form 1040 line 31.

Common mistakes to avoid

  • 1Treating Schedule 3 as a standalone form — it attaches to Form 1040, and its Part I total (line 8) must be carried to Form 1040 line 20 and its Part II total (line 15) to line 31, or the credits and payments are simply lost.
  • 2Confusing Part I nonrefundable credits with Part II refundable credits and payments — nonrefundable credits can only reduce your tax to zero, while Part II amounts like the net premium tax credit or excess Social Security can actually increase your refund, so they belong in different parts.
  • 3Claiming a line without attaching the required source form, or misclaiming excess Social Security — line 11 only applies when two or more employers withheld more than the annual maximum, not when a single employer over-withheld (you fix that with the employer).

How JustFill helps you complete Schedule 3 (Form 1040)

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Frequently asked questions

Yes. The IRS provides Schedule 3 and its instructions at no cost, and JustFill lets you fill it online free — the AI auto-detects every line so you can type or dictate your credit and payment amounts without paying for software.
Download the current Schedule 3 PDF free from the IRS at irs.gov/forms-pubs/about-schedule-3-form-1040. You can then open that PDF in JustFill to complete it in your browser — no Adobe Acrobat needed, even if the copy is scanned or non-fillable.
No. Schedule 3 is an attachment to Form 1040, 1040-SR, or 1040-NR — its Part I total goes to Form 1040 line 20 and its Part II total to line 31. JustFill fills the schedule for you, but you submit it together with your return to the IRS yourself.
Part I lists nonrefundable credits (foreign tax, child-care, education, energy and saver's credits) that can reduce your tax only to zero. Part II lists other payments and refundable credits (net premium tax credit, extension payment, excess Social Security, fuel-tax credit) that can be refunded to you.

Official source: Schedule 3 (Form 1040) on Internal Revenue Service (IRS), U.S. Department of the Treasury’s website

JustFill is an independent product and is not affiliated with, endorsed by, or sponsored by Internal Revenue Service (IRS), U.S. Department of the Treasury or any government agency. Always verify your completed form on the official version before signing or submitting.