Get in touch about the site, not your tax return

What we can help with

This site exists to explain terminology and correct common misunderstandings about US tax residency, not to advise on anyone's specific filing. When you write in, the most useful messages point to a specific page, sentence, or claim and explain what seems unclear or possibly outdated. That kind of feedback is how the myths-versus-facts framing across the site gets sharper over time.

We also welcome questions that reveal a gap in coverage. If you searched the site for an explanation of a term, a document, or a step in a process and could not find it, telling us that helps shape what gets written next. That includes questions people commonly ask about how a sprintax calculus questionnaire works in practice, even though we do not operate that or any other commercial tool.

What we cannot do

We cannot tell you whether you are a resident or nonresident for tax purposes, whether a specific treaty applies to your income, or what to enter into any institutional form or questionnaire, including one built around Sprintax Calculus. Those determinations depend on personal facts we do not collect and are not positioned to evaluate, and doing so would go beyond what an educational publication should offer.

If you need a decision about your own filing, the appropriate next step is your institution's tax or international office, a qualified tax professional, or the relevant government tax authority directly. This site's job is to make the vocabulary those parties use less opaque before you get there, not to substitute for their review.

How to reach us

You can write to [email protected] with corrections, sourcing questions, or general feedback about the site. If you prefer to speak with someone, call +1 (212) 555-0100. Our mailing address is 79 Cedar Avenue, New York, NY 19194, United States, listed here for correspondence and public record purposes.

When emailing about a specific page, include the page title or a short quote from the text you are asking about. That single detail saves several rounds of back-and-forth and gets you a useful answer faster than a general inquiry would.

What happens after you write in

Messages are read in the order they arrive. Corrections to factual claims, especially anything tied to a specific tax year or a cited public source, are prioritized because accuracy is the entire point of this site. General questions about terminology, including anything related to a sprintax calculus overview or a sprintax calculus guide referenced on another page, are answered as time allows.

We do not respond with anything resembling personalized tax advice, regardless of how the question is phrased. If a reply would require knowing your visa history, income sources, or filing details, expect us to point you toward general resources instead of attempting an individual answer.