An HSA can be established for any individual that meets all of the following:
- is covered by a high deductible health plan
- is not covered by another health plan
- is not eligible to be claimed as a dependent on another person’s tax return
- is not entitled to Medicare benefits
https://www.hsaresources.com/faq/#opening-01
If such an individual has family HDHP coverage, he can contribute to his HSA up to the family limit.
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
