Determining tax residency under Internal Revenue Code ( US Code 26) is first step towards knowing your tax liability under US tax law. If you are tax resident, law of taxation is differently applied. If you are non-resident , some specific tax laws applies . Further , it may happen that you are tax resident as well as no- resident for the same year. In that case , your status is a Dual Status for which separate taxation law are there in statute book. So, determination of tax residency is most important and actually the first step .
The designation of resident for tax purposes is completely separate from your immigration status. You might qualify as a resident for tax purposes while remaining a non immigrant alien for immigration purposes.
Tax Residency Calculator has following finders and modules to assist anyone who desire to check if he/she is resident of USA for tax purpose.
1. Tax Residency Finder
2. Exempt Individual Finder
3. Days Not Counted for Tax Residency
4. First Choice Year Finder
5. Quiz on Tax Residency Calculator
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Many more modules are going to be added