Evidence for Father's GC Application and Tax questions

[Archer]

Hi 

I m  a US Citizen. I'd like to apply for my parents Green card. My Questions are: 

1. What are implications for my parents on filing their taxes in India for their assets ? Do they have to file taxes in the US? 

2. How does this affect inheritance & taxation during inheritance ? 

3. Are there any other implications like Health Insurance / Health care costs for parents while they live in the US? 

4. My parents plan to visit me in March 2022, Do i wait until then to file for their GC ? 

5. My parents dont have a marriage certificate - How can i provide an alternative evidence for my father's petition ? They live in Chennai currently. 

Thank you! 

[JoeF]

Permanent Residents and US citizens have to file US tax returns on their worldwide income. There are tax treaties with most other countries to avoid double taxation.

[newacct]

Even when there is no tax treaty, the Foreign Earned Income Exclusion and/or the Foreign Tax Credit helps to avoid double taxation. (The Foreign Tax Credit essentially causes you to pay a net amount that is equal to whichever of the two taxes is higher.)

Edited October 28, 2021 by newacct