Form 1040, U.S. Individual Income Tax Return, is the main IRS form used to file a federal income tax return. It reports income, deductions, and credits to determine tax owed or refund due, and sets filing status and dependents.
| Form | Description | Due date |
|---|---|---|
| 1040 | Standard individual tax return | April 15 (or next business day) |
| 1040-SR | Version for taxpayers 65 and older | April 15 |
| 1040-ES | Quarterly estimated tax payments | April 15, June 15, Sept. 15, Jan. 15 (next year) |
| 1040-V | Payment voucher for paper filers | April 15 |
| 1040-X | Amended return | 3 years from original due date (or 2 years after tax paid, whichever is later) |
| 1040-NR | Nonresident aliens with U.S.-sourced income | April 15 (or next business day) |
What Form 1040 covers
- Personal information: Name, SSN/ITIN, filing status, dependents. Dependents can be checked for Child Tax Credit or Credit for Other Dependents eligibility.
- Income: Wages, distributions, dividends, capital gains, and deductions claimed — used to calculate AGI and taxable income.
- Tax and Credits: Tax credits (e.g., Child Tax Credit) and total tax liability (line 24).
- Payments and Refundable Credits: Withholding, estimated payments, and refundable credits like the Earned Income Credit or Additional Child Tax Credit (line 33 shows total payments).
- Refund or Amount Owed: If line 33 exceeds line 24, a refund is due; if line 24 exceeds line 33, tax is owed.
Key schedules
Schedule 1-A: Additional Deductions
New for tax year 2025. Reports deductions that reduce taxable income even if the standard deduction is taken (they don’t reduce AGI like an above-the-line deduction):
- Qualified tip income deduction
- Qualified overtime pay deduction
- Interest paid on a qualified new vehicle loan
- Additional deduction for taxpayers age 65+
The Schedule 1-A total flows to Form 1040 and lowers income subject to federal tax.
Schedule 1: Additional Income and Adjustments to Income
Page 1 reports additional income: unemployment compensation, alimony, business income/loss (Schedule C), rental income/loss (Schedule E), farm income, gambling winnings, canceled debts, prizes and awards.
Page 2 reports adjustments to income: student loan interest deduction, deductible educator expenses, retirement contribution deductions, HSA deductions, self-employment health insurance deduction.
Schedule 2: Additional Taxes
Alternative minimum tax (AMT), excess advance premium tax credit repayment, self-employment tax, additional Social Security/Medicare tax, additional taxes on IRAs and tax-favored accounts, household employment taxes, repayment of first-time home buyer credit, recapture of low-income housing credit.
Schedule 3: Additional Credits and Payments
Nonrefundable credits: foreign tax credit, child and dependent care expenses, education credits (American Opportunity, Lifetime Learning), adoption credit, residential energy credits (2025 is the last year to claim many of these), clean vehicle credit, mortgage interest credit, general business credit, credit for the elderly or disabled.
Filing steps
- Gather documents: W-2s, 1099s, IRA/pension/retirement statements, deduction records, prior-year return.
- Fill out personal information: name, address, SSN, filing status, dependents.
- Report income, including any additional income or adjustments via Schedule 1.
- Claim deductions and credits (standard vs. itemized via Schedule A).
- Determine refund or balance due; set up a payment plan if a balance is owed and can’t be paid in full.
Other 1040 form versions
1040-SR
For taxpayers 65 and older. Larger print, simpler layout, same sections as the standard Form 1040, includes a table of the larger standard deduction available to filers over 65.
1040-ES
Used for quarterly estimated tax payments, typically by those with income not subject to withholding (self-employment, rental, investment income).
1040-V
Payment voucher accompanying a check or money order for a paper-filed return with a balance due. Not a tax return itself.
1040-X
Amended return used to correct income, deductions, or credits from a prior year, generally within a three-year window from the original due date.
1040-NR
For nonresident aliens with U.S.-sourced income (wages, investment returns), or representatives of certain trusts, estates, or deceased persons who would have filed 1040-NR.
FAQs
What documents do I need? Income documents (W-2s, 1099s, IRA statements), proof of tax payments, deduction/credit records, SSNs for filer, spouse, and dependents, and the prior year’s return.
What is the standard deduction for Form 1040? For 2025: $15,750 (single/married filing separately), $23,625 (head of household), $31,500 (married filing jointly/surviving spouse).
Who should use Form 1040-SR? Taxpayers 65 and older who want a more straightforward, easier-to-read form.
What happened to Form 1040-A and 1040-EZ? Both were discontinued after 2018. 1040-A was a shorter version for simpler tax situations without itemized deductions. 1040-EZ was the simplest version, for single/married filers with no dependents, taxable income under $100,000, and no itemized deductions or adjustments.
This article is for informational purposes only and not legal or financial advice.