Overview of Different U.S. Taxes for Immigrants in 2025: What You Need to Know Before You Work or Settle

Before relocating to the United States, every immigrant has been encouraged to gain a thorough understanding of the American tax system. The U.S. government has maintained a taxation framework that has obligated both residents and non-residents to pay taxes on earned income. Immigrants who have failed to meet these obligations have often faced fines, legal actions, or delays in future immigration processes.

Understanding the U.S. Tax System as an Immigrant

Resident vs Non-Resident Alien Status Explained

For taxation purposes, immigrants have been classified into two primary categories: resident aliens and non-resident aliens. Resident aliens have generally been taxed on their worldwide income, while non-resident aliens have only been taxed on income earned within the United States. Determination of residency status has been made using the Green Card Test or the Substantial Presence Test.

Why Immigration Status Affects How You’re Taxed

The way an individual has been taxed in the U.S. has greatly depended on their immigration status. Visa holders, green card recipients, and undocumented immigrants have all been subjected to different tax treatments. These variations have made it essential for immigrants to understand their classification to remain compliant with tax laws.

Federal Taxes All Immigrants Must Know

Federal Income Tax – What Is It?

Federal income tax has been considered the most significant component of the U.S. tax system. This tax has been levied on earned income, including wages, salaries, business income, and some investment earnings. The amount of tax owed has been determined by the individual’s filing status, income level, and deductions.

Social Security and Medicare (FICA) Contributions

Contributions to Social Security and Medicare have been mandatory for most employed immigrants in the United States. These payroll taxes, known collectively as FICA, have been withheld from paychecks and matched by employers. Even temporary workers and visa holders have often been required to contribute unless specifically exempted.

Self-Employment Tax for Freelancers and Gig Workers

Immigrants who have worked as freelancers, independent contractors, or business owners have been required to pay self-employment tax. This tax has covered both Social Security and Medicare contributions, usually totaling 15.3%. Proper record-keeping and quarterly estimated payments have been necessary to avoid penalties.

Tax Filing Deadlines and Refunds for Federal Tax

Federal tax returns have been due annually by April 15. Extensions have been granted upon request, but late filing without payment has led to penalties. Eligible immigrants who have overpaid taxes have been entitled to receive refunds by filing IRS Form 1040 or 1040-NR.

State and Local Taxes

Which States Have Income Tax and Which Don’t

While the federal government has imposed income tax across the country, individual states have maintained the authority to levy their own taxes. States like Texas, Florida, and Washington have not imposed personal income tax. Conversely, states such as California, New York, and Illinois have maintained high state tax rates.

How State Residency Affects Your Taxes

Tax residency at the state level has been determined based on where an immigrant has physically lived and worked. Moving between states has affected tax responsibilities and filing requirements. State residency rules have varied, often requiring immigrants to file part-year or non-resident returns if relocation has occurred.

Examples: California vs Texas vs New York Tax Rates

In California, top earners have been taxed at rates exceeding 12%. Texas has imposed no income tax, but higher property and sales taxes have been noted. New York State and City have both levied taxes, creating a higher cumulative burden for residents in NYC.

Local (City and County) Tax Rules Immigrants Should Be Aware Of

Some U.S. cities and counties have charged additional income or occupational taxes. For instance, New York City and some cities in Ohio have imposed their own income tax structures. Immigrants living in these areas have been advised to review municipal tax requirements alongside state and federal obligations.

Tax Obligations by Visa Type

H-1B and L-1 Visa Holders – Treated as U.S. Residents

H-1B and L-1 visa holders have generally been considered resident aliens for tax purposes if they have passed the Substantial Presence Test. This status has obligated them to report all income, regardless of where it was earned. Employers have been required to withhold appropriate federal, state, and local taxes.

F-1 and J-1 Visa Holders – Special Exemptions Apply

F-1 students and J-1 exchange visitors have often qualified for non-resident status for up to five calendar years. During this time, they have only been taxed on U.S.-sourced income and may have been exempt from FICA taxes. Proper documentation and form submission, such as IRS Form 8843, have been essential.

Green Card Holders – Taxed on Worldwide Income

Green card holders have been treated as lawful permanent residents and taxed similarly to U.S. citizens. Their worldwide income has been subject to federal taxation. Reporting foreign bank accounts and offshore income through FBAR and FATCA requirements has been mandatory.

Undocumented Workers and Tax ID Numbers (ITIN Use)

Undocumented immigrants have often paid taxes using an Individual Taxpayer Identification Number (ITIN). Although lacking legal work authorization, many have chosen to remain compliant with tax laws in hopes of future regularization of status.

Understanding Tax Identification Numbers (SSN vs ITIN)

When a Social Security Number (SSN) Is Issued

An SSN has been issued to immigrants authorized to work in the United States. It has served both for employment verification and tax reporting. SSNs have allowed access to Social Security benefits if sufficient contributions have been made over time.

Who Needs an Individual Taxpayer Identification Number (ITIN)

An ITIN has been issued to individuals who need to file taxes but are not eligible for an SSN. This has included dependents, spouses, and undocumented workers. It has been obtained by submitting IRS Form W-7 along with a tax return.

How to Apply for an ITIN as an Immigrant Without Work Authorization

To apply for an ITIN, IRS Form W-7 has been completed and submitted with a valid federal tax return. Certified copies of identification documents, such as a passport, have been required. Application has been allowed via mail, IRS offices, or approved Acceptance Agents.

Common Tax Forms Used by Immigrants

Form W-4 – For Employees Starting a New Job

Form W-4 has been used by employees to inform employers of withholding amounts. Accurate completion has ensured that the correct amount of federal tax has been withheld from paychecks throughout the year.

Form 1040 – For Annual Federal Tax Filing

Form 1040 has been required for most immigrants classified as resident aliens. This form has included income details, deductions, credits, and tax owed or refunded. It has been filed annually by the April deadline.

Form W-2 – Year-End Income Statement from Employers

Employers have issued Form W-2 to employees at the beginning of each year. This form has shown total earnings and tax withholdings, and has been essential for accurate tax filing.

Form 1099 – For Freelancers, Contractors, and Investors

Form 1099 has been received by those who have worked as independent contractors or earned interest, dividends, or miscellaneous income. Multiple types of 1099 forms have existed based on income sources.

Key Tax Credits and Benefits for Immigrants

Child Tax Credit (CTC)

Immigrant families with eligible dependent children have often benefited from the Child Tax Credit. Requirements have included SSNs for children and income thresholds.

Earned Income Tax Credit (EITC) – Who Qualifies

Low- to moderate-income immigrant workers have been eligible for the EITC if all qualifications have been met. This credit has provided refunds even if no tax was owed.

Education Credits (AOTC and Lifetime Learning Credit)

Immigrants pursuing higher education or training have claimed the American Opportunity Tax Credit and Lifetime Learning Credit, provided they or their dependents qualified.

Healthcare Premium Tax Credit

Immigrants enrolled in healthcare through the federal marketplace have often received subsidies via the Premium Tax Credit, based on income and household size.

Double Taxation and Tax Treaties

What Is Double Taxation and How Can It Be Avoided?

Double taxation has occurred when income has been taxed both in the U.S. and another country. It has been avoided by claiming credits or exclusions, such as the Foreign Tax Credit (FTC).

Countries That Have Tax Treaties with the U.S.

The U.S. has entered into tax treaties with over 60 countries. These agreements have defined how income has been taxed and which types of income may be exempt from U.S. taxation.

How to Claim Tax Treaty Benefits Using IRS Forms (e.g., Form 8233)

Form 8233 has been used by non-resident aliens to claim tax treaty exemptions on certain income types. Documentation has been required to support residency in the treaty country.

Penalties for Non-Compliance or Late Filing

Common Mistakes Made by New Immigrants

Mistakes such as incorrect residency classification, failure to report all income, or missing forms have commonly led to penalties. Many of these errors have been avoided through careful planning.

IRS Penalties for Late or Incorrect Filing

Penalties have been imposed for failure to file on time, underpayment of taxes, or intentional misreporting. Interest has also accrued on unpaid balances.

How to Amend a Mistaken Tax Return

Errors on previously filed returns have been corrected using IRS Form 1040-X. Amended returns have been reviewed and processed after the original submission.

What to Do If You Can’t Pay Taxes Owed

Installment agreements or hardship programs have been arranged with the IRS. Immediate contact with the IRS has been recommended to avoid aggressive collection actions.