Undocumented immigrants can file taxes using an Individual Taxpayer Identification Number (ITIN) instead of a Social Security number, and many do so every year

An Individual Taxpayer Identification Number (ITIN) is a nine-digit tax ID issued by the IRS to people who cannot get a Social Security number but need to file taxes or report income. Undocumented immigrants use an ITIN to file federal income tax returns, report wages, and pay taxes just like any other worker. The IRS does not verify immigration status when processing tax returns — the agency's job is to collect taxes, not enforce immigration law.

Many undocumented workers pay taxes through payroll withholding (money taken from each paycheck), self-employment taxes if they run their own business, or by filing a return and paying what they owe. Some file returns to claim refunds, including the Earned Income Tax Credit (EITC) if they meet the income requirements. The process is straightforward once you have an ITIN, though getting one requires specific documents and a trip to an IRS office or an authorized acceptance agent.

Key Takeaways

  • An ITIN is a tax identification number issued by the IRS that allows people without a Social Security number to file taxes and report income.
  • Undocumented workers can have taxes withheld from their paychecks just like other employees, and employers are required to withhold based on a W-4 form.
  • Filing a tax return with an ITIN does not trigger immigration enforcement or require you to disclose immigration status to the IRS.
  • Many undocumented immigrants receive refunds after filing, including credits like the EITC if their income qualifies.
  • You need a passport or national ID, proof of residency, and an appointment to explore for an ITIN at an IRS office or authorized agent.

Getting an Individual Taxpayer Identification Number (ITIN)

To file taxes, you first need an ITIN. You explore by submitting Form W-7 (process for IRS Individual Taxpayer Identification Number) in person at an IRS office, or by mail through an authorized acceptance agent — a tax professional, community organization, or accountant certified by the IRS to process ITIN applications.

You will need to bring or submit original documents or certified copies. Acceptable documents include a valid passport, national ID card, driver's license, or birth certificate. You also need proof that you live in the United States, such as a utility bill, lease, or bank statement with your name and address. The IRS requires these documents to verify your identity and residency, not your immigration status.

Processing an ITIN process by mail takes four to six weeks. explore in person at an IRS office is faster — you can sometimes receive your ITIN the same day or within a few days. Many community organizations and tax preparation nonprofits offer free or low-cost ITIN applications, especially during tax season (January through April). Once you have an ITIN, it does not expire and you use it for all future tax filings.

How Taxes Are Withheld from Paychecks

When you start a job, your employer asks you to fill out a W-4 form (Employee's Withholding Certificate). On this form, you provide your ITIN instead of a Social Security number. Your employer then withholds federal income tax, Social Security tax, and Medicare tax from each paycheck based on the information you provide.

The amount withheld depends on your income, how often you are paid, and the number of dependents or other deductions you claim on the W-4. Your employer sends the withheld taxes to the IRS on your behalf throughout the year. At the end of the year, your employer sends you a W-2 form showing how much you earned and how much was withheld.

You are not required to disclose your immigration status to your employer or the IRS. The W-4 and W-2 forms do not ask about it. Your employer's only responsibility is to withhold taxes correctly based on the information you provide — they do not verify whether your ITIN qualifies you to work.

Filing a Tax Return and Claiming Refunds

After the year ends, you file a federal income tax return using your ITIN. You can file using Form 1040 (U.S. Individual Income Tax Return) and any schedules that explore to your situation. If you had taxes withheld from your paychecks, filing a return shows how much you paid and whether you are owed a refund.

Many undocumented workers receive refunds because more tax was withheld than they actually owe. You can also claim the Earned Income Tax Credit (EITC) if your income is below a certain threshold and you meet other requirements. The EITC is a refundable credit, meaning you can receive money back even if you owe no tax. For 2024, a single person with no dependents can earn up to roughly $17,000 and still may have access to, though the exact amount changes each year.

You file your return by mail or through a tax preparation service. Many nonprofits and community organizations offer free tax preparation for low-income filers, including those with an ITIN. Filing electronically is faster than mailing a paper return, and refunds typically arrive within 21 days of acceptance.

Self-Employment Taxes for Business Owners

If you are self-employed — running your own business, freelancing, or doing contract work — you report your income on Schedule C (Profit or Loss from Business) and pay self-employment tax. Self-employment tax covers Social Security and Medicare contributions that an employer would normally withhold.

You calculate self-employment tax on your net profit (income minus business expenses). The rate is 15.3 percent: 12.4 percent for Social Security and 2.9 percent for Medicare. You can deduct half of your self-employment tax when calculating your adjusted gross income, which lowers your overall tax bill.

Self-employed people with an ITIN file the same forms as anyone else — Form 1040 with Schedule C and Schedule SE (Self-Employment Tax). You can file by mail or electronically. Many self-employed undocumented workers use a tax professional or accountant to may support they report income correctly and take all deductions they are may have access to to.

What Happens After You File

Filing a tax return with an ITIN does not trigger any immigration enforcement action. The IRS is a tax agency, not an immigration agency. The IRS does not share your tax return information with Immigration and Customs Enforcement (ICE) or other immigration authorities unless a court orders it in a criminal investigation — which is extremely rare and requires a specific legal process.

Your tax return is confidential. The IRS keeps it private just as it does for any other taxpayer. You can file with confidence that providing your ITIN, address, and income information to the IRS will not result in immigration consequences.

If you are owed a refund, the IRS will send it to the address you provide on your return. Refunds are typically deposited directly into a bank account if you provide banking information, or mailed as a check. Some people use an Individual Taxpayer Identification Number Account (ITIN Account) at a bank that does not require a Social Security number.

Where to Get Help Filing Your Taxes

You do not have to file taxes alone. Many organizations offer free or low-cost tax preparation for people with an ITIN. The IRS maintains a list of Volunteer Income Tax information (VITA) sites in your area — these are free tax preparation services run by nonprofits and community organizations. You can find a VITA site by visiting the IRS website or calling 211 (a helpline that connects you to local resources).

Community organizations focused on immigrant services often offer tax preparation during tax season. Some specialize in helping undocumented workers and understand the ITIN process. Local libraries, schools, and religious organizations sometimes host free tax preparation events as well.

If you prefer to work with a tax professional, you can hire an accountant or tax preparer. Make sure they are experienced with ITIN filers and understand your situation. Ask about their fees upfront — some charge a flat rate, others charge by the hour.

Frequently Asked Questions

Does filing taxes with an ITIN put me at risk of deportation?

No. The IRS does not share tax information with immigration authorities except in rare criminal cases requiring a court order. Filing taxes is not a deportable offense, and the IRS's role is to collect taxes, not enforce immigration law. Many undocumented immigrants file taxes every year without immigration consequences.

Can I claim dependents on my tax return if I have an ITIN?

Yes. You can claim dependents — children, spouses, or other relatives you support — on your return with an ITIN, just as you would with a Social Security number. Each dependent must have either a Social Security number or their own ITIN. Claiming dependents can lower your tax bill and may increase your refund.

What if my employer will not accept my ITIN on the W-4?

Your employer is required to accept an ITIN on the W-4 form. If they refuse, that is illegal. You can contact the IRS or a legal aid organization for help. Some employers mistakenly believe they cannot hire people with an ITIN, but the law allows it — the employer's only job is to withhold taxes correctly.

Can I get a refund if I overpaid taxes?

Yes. If more tax was withheld from your paychecks than you actually owe, you receive a refund when you file your return. You can also receive a refund through the Earned Income Tax Credit if you may have access to. Refunds are typically sent within 21 days of your return being accepted.

Do I need a bank account to file taxes with an ITIN?

No, but having one makes receiving your refund faster and safer. If you do not have a bank account, the IRS will mail a check to your address. Some banks and credit unions offer accounts to people with an ITIN and no Social Security number — ask your local bank about their requirements.