First-Time Tax Filer Guide: Everything You Need to Know

2025 filing thresholds

The first question is whether you are required to file at all. Generally, you must file a federal income tax return if your gross income exceeds the filing threshold for your filing status.

2025 filing thresholds: Single filers under 65 must file if gross income exceeds $15,000. Married filing jointly (both under 65): $30,000. If you are claimed as a dependent on someone else's return, different (lower) thresholds apply.

Even if not required, you should file if: Your employer withheld federal income tax from your paychecks (you may be owed a refund), you qualify for refundable credits like the Earned Income Tax Credit (EITC) or the American Opportunity Credit for college students, or you want to establish a filing history.

Many young people who worked part-time or during summer break had taxes withheld but earned below the filing threshold. Filing a return gets that money back as a refund.

Income documents

Before you start, collect these documents:

Income documents: W-2 from each employer (mailed by January 31), 1099 forms for freelance income, bank interest, investment income, or other non-employment income. If you worked through a gig platform, check for 1099-NEC or 1099-K forms.

Personal information: Your Social Security number (or ITIN), your bank account and routing number for direct deposit of your refund, and a copy of last year's tax return if you filed one.

Deduction documents (if applicable): Form 1098-T from your college (for education credits), student loan interest statements (Form 1098-E), receipts for charitable donations, and health insurance marketplace Form 1095-A if you purchased coverage through the ACA exchange.

If you are claimed as a dependent: Confirm with your parents whether they are claiming you on their return. This affects your standard deduction, eligibility for certain credits, and filing requirements.

Free options (best for most first-time filers)

Free options (best for most first-time filers):

IRS Free File: If your adjusted gross income is $84,000 or less, you can use IRS Free File (irs.gov/freefile) to access brand-name tax software at no cost. This is the simplest free option for basic returns.

Cash App Taxes: Completely free federal and state filing for all income levels. Handles W-2 income, investment income, and some self-employment situations.

IRS Direct File: The IRS's own free filing tool, available in an expanding number of states. Covers simple returns with W-2 income, standard deduction, and common credits.

Paid options ($30-$100+): TurboTax, H&R Block, and TaxAct offer guided filing with more features and support. Worth considering if you have complex situations like rental income, significant investments, or multi-state filing.

In-person help: VITA (Volunteer Income Tax Assistance) sites offer free tax preparation for people earning under $67,000. Find locations at irs.gov/vita. Many college campuses also host VITA sites.

Box 1 — Wages, tips, other compensation

Your W-2 is the most important document for first-time filers. Here is what the key boxes mean:

Box 1 — Wages, tips, other compensation: Your total taxable earnings. This is the main number you report as income on your tax return.

Box 2 — Federal income tax withheld: How much your employer already sent to the IRS on your behalf. If this exceeds what you actually owe, you get a refund. If it is less, you owe the difference.

Box 3 and 5 — Social Security and Medicare wages: The earnings subject to Social Security and Medicare taxes. Usually similar to Box 1 but may differ if you had pre-tax deductions.

Box 4 and 6 — Social Security and Medicare tax withheld: The FICA taxes your employer withheld. These are not part of your income tax calculation.

Box 12 — Various codes: May show retirement contributions (code D for 401(k)), health insurance premiums, and other benefits. Your tax software will ask about these.

Box 17 — State income tax withheld: Relevant for your state tax return.

Example

The standard deduction is a flat amount that reduces your taxable income. For 2025, it is $15,000 for single filers and $30,000 for married filing jointly.

Most first-time filers should take the standard deduction. You would only benefit from itemizing if your deductible expenses (mortgage interest, state and local taxes, charitable donations, medical expenses above 7.5% of income) exceed the standard deduction amount. For most young workers without a mortgage, the standard deduction is clearly better.

Example: You earned $45,000 (Box 1 on your W-2). Your standard deduction is $15,000. Your taxable income is $30,000. Federal tax on $30,000 (2025 rates, single) is approximately $3,368. If your employer withheld $4,500 (Box 2 on your W-2), you get a refund of roughly $1,132.

Earned Income Tax Credit (EITC)

Earned Income Tax Credit (EITC): A refundable credit for low-to-moderate income workers. Single filers with no children can receive up to $632 with income under $19,104. Workers with children get significantly more. Many eligible workers do not claim it.

American Opportunity Tax Credit (AOTC): Worth up to $2,500 per year for the first four years of college. You need Form 1098-T from your school. 40% of the credit ($1,000) is refundable even if you owe no tax. Cannot be claimed if your parents claim you as a dependent — but your parents can claim it on their return.

Lifetime Learning Credit: Up to $2,000 for tuition and education expenses. Available for any year of higher education and for professional development courses. Cannot be combined with AOTC for the same student in the same year.

Saver's Credit: If you contributed to a 401(k), IRA, or other retirement plan and your income is moderate, you may qualify for a credit of 10-50% of up to $2,000 in contributions.