Yes, undocumented immigrants pay federal income tax, payroll tax, and sales tax, though the amount varies by income and employment type

Undocumented immigrants who work in the United States pay federal income tax and payroll tax (Social Security and Medicare) when they earn wages. They also pay sales tax on purchases like anyone else. The IRS does not require citizenship or legal status to file a tax return or pay taxes—only a valid taxpayer identification number.

The confusion often comes from the fact that undocumented workers cannot claim certain refunds or credits that citizens and legal residents can. They also cannot access the benefits their payroll taxes fund, such as Social Security retirement payments. But the taxes themselves are still withheld from paychecks and paid to the federal government.

Key Takeaways

  • Undocumented immigrants who receive W-2 wages have federal income tax and payroll tax automatically withheld by their employer, just like other workers.
  • Self-employed undocumented workers can file taxes using an Individual Taxpayer Identification Number (ITIN) instead of a Social Security number.
  • Undocumented immigrants cannot claim the Earned Income Tax Credit (EITC) or Child Tax Credit, even if they pay taxes, which reduces their refunds.
  • State and local sales taxes are paid by undocumented immigrants on all taxable purchases, the same as any consumer.
  • The IRS does not share tax filing information with immigration enforcement agencies.

How payroll tax works for undocumented workers

When an undocumented worker is hired for a job that issues a W-2 form, the employer withholds federal income tax, Social Security tax (6.2 percent), and Medicare tax (1.45 percent) from each paycheck. This happens regardless of immigration status. The employer then sends those withheld amounts to the IRS and the Social Security Administration.

The worker receives a W-2 at the end of the year showing how much was withheld. They can then file a federal tax return using an Individual Taxpayer Identification Number (ITIN), which the IRS issues to people who cannot obtain a Social Security number. The ITIN allows them to file and pay taxes without proving legal status.

Many undocumented workers do not file returns even though taxes were withheld, often because they fear drawing attention to their status or because they believe filing is not allowed. In reality, filing a return is separate from immigration enforcement, and the IRS does not share tax records with U.S. Immigration and Customs Enforcement (ICE).

Self-employment and estimated taxes

Undocumented workers who are self-employed—such as contractors, day laborers, or small business owners—must pay self-employment tax, which covers both the employer and employee portions of Social Security and Medicare (15.3 percent total). They can file using an ITIN and deduct business expenses the same way any self-employed person does.

Self-employed workers are expected to pay estimated taxes quarterly if they will owe more than a certain amount at the end of the year. An accountant or tax preparer can help calculate these payments. Many self-employed undocumented workers do not file, which means they are not paying these taxes, but those who do file are treated like any other self-employed taxpayer.

Refunds and tax credits undocumented workers cannot claim

The main difference in how undocumented workers are taxed comes down to refundable tax credits. Undocumented immigrants cannot claim the Earned Income Tax Credit (EITC), which is a major refund for low-income workers, or the Child Tax Credit, even if they have dependent children and paid taxes all year.

This means an undocumented worker who earns $25,000 a year and has taxes withheld may owe money at tax time instead of receiving a refund, whereas a citizen in the same situation might receive a refund of several thousand dollars. Some states offer their own versions of the EITC to undocumented immigrants, but this varies by state.

Undocumented workers can still claim the standard deduction and deduct business expenses if self-employed, which lowers their taxable income. But they cannot claim dependent exemptions or most other credits available to other taxpayers.

Sales tax and property tax

Undocumented immigrants pay sales tax on purchases in every state that has a sales tax, the same percentage as anyone else. They also pay property tax if they own real estate, either directly or through a business entity. Some states allow undocumented immigrants to own property; others do not, but those who do are subject to the same property tax rates as other owners.

Renters also contribute to property tax indirectly through rent, since landlords factor property taxes into the rent they charge. Undocumented immigrants who rent are therefore funding local schools, roads, and services through this mechanism, even though they may not be able to use all of those services.

Why the confusion exists

The belief that undocumented immigrants do not pay taxes often stems from the fact that some work "under the table" for cash and do not report income at all. This is true for some undocumented workers, but it is also true for some citizens and legal residents. The difference is that undocumented workers have less recourse if an employer refuses to pay them or withholds taxes illegally.

Another source of confusion is the distinction between paying taxes and being able to claim benefits. Undocumented workers pay into Social Security and Medicare but cannot draw from these programs in most cases. This means their payroll taxes subsidize the system for others, which is a real economic fact that is often misunderstood in public debate.

How to file taxes as an undocumented immigrant

To file taxes as an undocumented immigrant, you need an ITIN. You can request one from the IRS by completing Form W-7 and submitting it with proof of identity and proof of residency in the United States. You do not need to prove legal status. Many tax preparation organizations offer free or low-cost help with ITIN applications and tax filing.

Once you have an ITIN, you can file a federal tax return using Form 1040 or a simpler form if your income is below a certain threshold. You will report all income from wages, self-employment, or other sources. The IRS processes returns filed with an ITIN the same way it processes returns filed with a Social Security number.

Filing a tax return does not change your immigration status and does not automatically trigger an immigration investigation. The IRS is a tax agency, not an immigration agency, and the two do not routinely share information. However, if you are concerned about your specific situation, speaking with an immigration attorney before filing is a reasonable precaution.

Frequently Asked Questions

Can the IRS report me to immigration if I file taxes?

No. The IRS does not share tax return information with ICE or other immigration enforcement agencies as a matter of routine. Tax filing and immigration status are handled by separate government systems. However, if you are concerned about your individual circumstances, an immigration attorney can advise you on whether filing is safe in your case.

What if my employer did not withhold taxes?

If you were paid in cash or your employer did not withhold taxes, you are still responsible for paying self-employment tax on that income if you earned more than a certain amount. You can file a return and pay what you owe, or you can work with a tax preparer to calculate your liability. Paying taxes you owe does not require legal status.

Can I get a refund if I paid too much in taxes?

Yes, if you overpaid federal income tax, you can receive a refund when you file a return, just like any other taxpayer. However, you cannot claim refundable credits like the EITC, so your refund will be limited to the difference between what you paid and what you actually owe. A tax preparer can help you understand what refund you might receive.

Do undocumented immigrants pay into Social Security?

Yes, undocumented workers who receive W-2 wages have Social Security tax (6.2 percent) withheld from their paychecks. However, they cannot draw Social Security retirement benefits unless they later become legal residents or citizens. This means their payroll taxes go into the system but they cannot access the benefits, which is a real financial loss.

What states allow undocumented immigrants to claim tax credits?

A few states, including California, Colorado, and Illinois, offer state-level versions of the Earned Income Tax Credit to undocumented immigrants who file taxes. These credits vary in amount and may be able to access rules by state. You can check your state's tax agency website or speak with a tax preparer to learn whether your state offers any credits you might claim.