An individual is eligible to establish an HSA if:

  1. They are covered under a high-deductible health plan (HDHP)
  2. They are not also covered under any other health plan that is not an HDHP (with the exception of indemnity plans)
  3. They are not entitled to benefits under Medicare (generally, has not yet reached age 65)
  4. They may not be claimed as a dependent on another person's tax return