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Form 1040 — U.S. Individual Income Tax Return
Form 1040 is the standard federal income tax return most US individual taxpayers file each year to report income, claim deductions and credits, and calculate a refund or amount owed. Many filers use tax software instead of a bare PDF because it can calculate totals and attach schedules automatically — this tool is useful for reviewing the form, preparing simpler returns, or completing it alongside your own calculations. Fill it out directly in your browser and download the completed PDF. FileKit is not affiliated with the IRS, USCIS, or any government agency. This is the official current form, provided for your convenience — always verify you're using the latest version at the source link below before submitting.
How to fill out 1040
- 1Enter your filing status and personal information, including any dependents.
- 2Report your income, adjustments, deductions, and credits, attaching any required schedules.
- 3Download the completed PDF, sign it, and mail it to the IRS, or use it as a reference while e-filing through tax software.
Frequently asked questions
Does this tool calculate my totals automatically?
No — this tool fills in the values you enter but doesn't perform tax calculations. Double-check all totals, or use IRS-authorized tax software if you'd like calculations done for you.
When is Form 1040 due?
Generally April 15 following the tax year, unless that date falls on a weekend or holiday, or you have an approved extension (Form 4868).
Do I need to attach other forms?
Often yes — schedules like Schedule C (business income) or Schedule A (itemized deductions) attach to Form 1040 depending on your situation.
Related forms
FileKit is not affiliated with, endorsed by, or sponsored by any government agency. Forms are provided for your convenience as a courtesy — always confirm you're using the current official version at the source link before submitting anywhere important.