Congratulations, AnnaUkraine
.
Question: has anyone heard about the new rule that in order to keep your American citizenship, you have to stay in the US for 3 months within each year?
Nope, never heard of that, and can't find any mention of such a rule anywhere.
In fact, it is currently estimated that as many as 9 million US citizens live abroad permanently (US State Dept estimate, 2016) and I very much doubt that many (if any) of them spend at least 3 months a year in the US. There are also many US citizens who are 'accidental Americans' - they were born outside the US to a US citizen parent and have been American citizens since birth but have never lived in the US.
If you are a naturalised US citizen, the only reasons you can lose your citizenship by denaturalization are (as of 23 August 2017):
A. Person Procures Naturalization Illegally
B. Concealment of Material Fact or Willful Misrepresentation
- 1. Concealment of Material Fact or Willful Misrepresentation
- 2. Membership or Affiliation with Certain Organizations
C. Other than Honorable Discharge before Five Years of Honorable Service after Naturalization
(
https://www.uscis.gov/policymanual/HTML/PolicyManual-Volume12-PartL-Chapter2.html)
The US is (I believe) the only nation in the world that taxes their citizens based on nationality, not residency. Which means that as a US citizen, you will be required to file US taxes every year, even when you are living in the UK. If it was the case that people lost their citizenship if they didn't spend at least 3 months a year in the US, then the US government would potentially lose a lot of money in tax dollars paid by US citizens living abroad.