You may not participate in a general purpose Healthcare FSA or HRA
If you or your spouse participates in a Healthcare Flexible Spending Account (Healthcare FSA) or a Health Reimbursement Arrangement (HRA) that allows for reimbursement of your medical expenses, you are not eligible to establish a new HSA or make contributions to a current HSA.
You may not use VA or Indian Health Service medical benefits
If you have accessed VA or Indian Health Service medical benefits, you must wait three months from the time of use of those benefits to make contributions to your HSA. This does not include use of VA or Indian Health Service benefits for preventative care, dental, vision, well-baby visits, and immunizations.