Question: Is an employer responsible for a portion of a terminated individual’s deductible in a group HDHP?

Answer: The employer is not responsible for any part of your COBRA premium, but you asked about the deductible which adds an interesting angle. If your employer was reimbursing some portion of your out-of-pocket medical expenses (below the annual deductible) while you were employed, it’s possible that there is a Health Reimbursement Arrangement (HRA) in place which would spell out whether former employees are to be covered by the HRA while on COBRA.