Bullshit. We Americans have to file our taxes every year regardless of where we live on the planet. We have to pay taxes on every dollar over the threshold which is about 80k. You don’t know what you are talking about and I hope you are not telling Americans don‘t need to pay taxes back home.

https://www.greenbacktaxservices.com/knowledge-center/us-citizen-abroad-taxes/

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Key Takeaways
Regardless of where you reside, if you are a US Person, you are required to file a US federal tax return and pay US taxes on your worldwide income.
The only option to avoid submitting a US tax return and paying US taxes abroad under current US tax legislation is to renounce your US citizenship.
If US citizens fail to file US taxes while living abroad, they may incur fines, interest charges, or possibly legal repercussions.