What Is Form 1040 and Who Needs to File It?

Form 1040, officially called the U.S. Individual Income Tax Return, is the primary federal income tax form used by individuals to report their income, claim applicable deductions and credits, and calculate their federal tax liability.

The form collects information about:

• Your name, address, and Social Security number.
• Your filing status.
• Your dependents, if applicable.
• Your income from different sources.
• Adjustments and deductions.
• Tax credits.
• Federal income tax withholding.
• Estimated tax payments.
• Any refund due or balance owed.

The IRS updates tax forms and instructions as tax laws and reporting requirements change. Always use the version that applies to the tax year you are filing.

You can find the official form and its instructions on the IRS Form 1040 page.

Not everyone has the same federal income tax filing requirement. Whether you must file generally depends on your gross income, filing status, age, and whether someone can claim you as a dependent.

Other circumstances can also create a filing requirement.

You may need to file if:

Your income reaches the applicable filing threshold: The IRS sets filing thresholds based on filing status, age, and other factors. These amounts can change from one tax year to another.

You have self-employment income: Individuals with net earnings from self-employment of $400 or more generally have a federal filing requirement, even if their total income is otherwise relatively low.

You owe certain additional taxes: Some tax situations require a return even when your income is below the usual filing threshold.

You need to report specific tax situations: Certain health coverage, retirement, or other tax-related circumstances may require additional reporting.

The IRS provides an online Check If You Need to File a Tax Return tool to help taxpayers review their filing requirements.

Sometimes filing a tax return can still be beneficial even when you are not legally required to file.

For example, you may want to file if:

• Federal income tax was withheld from your paycheck.
• You qualify for a refundable tax credit.
• You made eligible estimated tax payments.
• You need to claim a refund of taxes already paid.

A taxpayer who does not meet the standard filing threshold may still be eligible for a refund or certain tax benefits.

Review your situation before deciding not to file.

Accurate individual tax return preparation starts with collecting the correct documents.

Depending on your circumstances, you may need:

Not every taxpayer needs every document. Your required information depends on your income and financial circumstances.

You can use the Mo Better Tax Tax Checklist to help organize commonly needed tax documents.

Form 1040 organizes your tax information into several sections.

This section identifies you, your spouse if applicable, and your dependents. It also records your filing status, which can affect your tax calculation and eligibility for certain benefits.

You report applicable income from wages, interest, dividends, retirement distributions, business activities, and other sources.

Some income types require additional schedules.

This section helps determine your adjusted gross income and taxable income. Depending on your situation, you may claim the standard deduction or itemize eligible deductions.

The form calculates your tax and includes applicable tax credits. Some credits can reduce your tax liability, while refundable credits may result in a refund.

This section includes federal tax withholding, eligible estimated payments, and applicable refundable credits. It helps determine whether you are entitled to a refund or owe additional tax.

For detailed guidance, review the official IRS Instructions for Form 1040. Make sure you use the instructions for the correct tax year.

Some taxpayers only need Form 1040, while others must attach additional schedules.

Examples include:

• Schedule 1: Used to report certain additional income and adjustments to income.
• Schedule 2: Used to report certain additional taxes.
• Schedule 3: Used to report certain additional credits and payments.
• Schedule C: Commonly used by eligible sole proprietors to report business income and expenses.
• Schedule D: Used to report certain capital gains and losses.

The schedules you need depend on your income, deductions, credits, and other tax circumstances.

You can prepare Form 1040 using tax software or work with a professional tax preparer.

A typical preparation process involves:

1. Collecting income and personal information.
2. Determining your filing status.
3. Reviewing income and applicable deductions.
4. Completing Form 1040 and required schedules.
5. Checking calculations and supporting information.
6. Reviewing and signing the completed return.
7. Submitting the return electronically or through an accepted filing method.

If you need assistance understanding your filing requirements, explore Mo Better Tax individual tax services or learn how the tax preparation process works.