When moving to the United States or planning an international relocation as a US citizen, it’s essential to understand your tax obligations. The term “US taxpayer” might seem straightforward, but it actually encompasses several categories of individuals, each with distinct tax responsibilities. This blog will break down who qualifies as a US taxpayer and what it means for your tax situation.
US Citizens
Perhaps the most straightforward group, US citizens are considered taxpayers regardless of where they reside. This means that even if you live abroad, the United States taxes you on your worldwide income and gains. Citizenship-based taxation is unique to the US and can catch many expats by surprise. If you were born in the US, naturalised, or hold dual citizenship, you fall into this category.
US Resident Aliens
Non-citizens who live and work in the US may qualify as resident aliens for tax purposes. The IRS uses two tests to determine residency status:
- Green Card Test: If you possess a valid Green Card, you are treated as a US taxpayer.
- Substantial Presence Test: If you have spent at least 183 days in the US over a three-year period, you may be considered a resident for tax purposes.
Resident aliens are taxed similarly to US citizens, meaning they must report worldwide income and may qualify for deductions and credits similar to citizens.
Non-Resident Aliens
If you do not meet the criteria for citizenship or residency, you may be considered a non-resident alien. Non-resident aliens are generally taxed only on income derived from US sources or effectively connected with a US trade or business. Examples include wages earned in the US, rental income from US properties, or profits from a business operating within the country.
Dual-Status Aliens
In some cases, individuals may be both a resident and non-resident in the same tax year, known as a dual-status alien. This usually occurs when someone either moves to or from the US during the tax year. Dual-status individuals must file a return reflecting both periods of residency and non-residency, which can make tax reporting more complex.
Why Does Taxpayer Status Matter?
Understanding your taxpayer status is crucial for correctly filing your tax returns and avoiding potential penalties. Your classification determines your filing requirements, the forms you must submit, and how your income is taxed.
Final Thoughts
Figuring out whether you qualify as a US taxpayer is the first step in managing your tax obligations effectively. If you’re unsure about your status, it’s wise to consult a tax professional who can guide you based on your specific circumstances. Whether you’re a citizen, resident alien, non-resident alien, or dual-status individual, understanding your role as a taxpayer is vital to staying compliant and avoiding issues with the IRS.
The information in this blog post is for general informational purposes only and does not constitute professional tax advice. We strongly recommend consulting a qualified tax professional before making any decisions. US Expat Tax Advisor is not liable for any actions taken based on this content.

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