Based on your financial expertise, provide your response or viewpoint on the given financial question or topic. The response format is open.

Can one be non-resident alien in the US without being a resident anywhere else?
You may be considered a resident for tax purposes. To meet the substantial presence test, you must have been physically present in the United States on at least: 31 days during the current year, and       183 days during the 3 year period that includes the current year and the 2 years immediately before. To satisfy the 183 days requirement, count:           All of the days you were present in the current year, and           One-third of the days you were present in the first year before the current year, and           One-sixth of the days you were present in the second year before the current year. If you are exempt, I'd check that ending your residence in Germany doesn't violate terms of the visa, in which case you'd lose your exempt status. If you are certain that you can maintain your exempt status, then the income would definitively not be taxed by the US as it is not effectively connected income: You are considered to be engaged in a trade or business in the United States if you are temporarily present in the United States as a nonimmigrant on an "F," "J," "M," or "Q" visa. The taxable part of any U.S. source scholarship or fellowship grant received by a nonimmigrant in "F," "J," "M," or "Q" status is treated as effectively connected with a trade or business in the United States. and your scholarship is sourced from outside the US: Generally, the source of scholarships, fellowship grants, grants, prizes, and awards is the residence of the payer regardless of who actually disburses the funds. I would look into this from a German perspective. If they have a rule similiar to the US for scholarships, then you will still be counted as a resident there.