If you are a single permanent resident or citizen, and not a dependent on somebody else's US tax return, and you were not self-employed, and your worldwide income was less than approx. $8000*, and you didn't sell any real estate, you are not required to file a US Federal tax return (unless you meet one of the rare exceptions that I don't remember).If I haven't earned anything in the U.S. nor anywhere else, do I still need to file tax returns?
See IRS publication 519.if I bought a house 10 years ago, and sold it at a profit (if calculated in my country's currency), but at a loss if converted to USD (due to weakening of my country's currency), do I still need to pay capital gain tax? Is it considered a capital gain or loss?