@W16VA wrote:
1. I will proceed with a family HDHP plan which has Inspira to manage HSA. I will find out whether they would handle my wife's HSA, since I can't have my own. How would the contributions take place, monthly or as a lump sum, up to the limits within each year?
Your wife can't contribute using your payroll deductions under your employer sponsored plan. She has to contribute using her own money. She will have to open her own HSA account at any bank that offers them; there are many–Inspira might even offer private accounts in addition to work sponsored accounts. If not, HSAs are offered by other banks. Make sure to ask about transaction fees and monthly or annual maintenance fees. Those fees are probably covered by the employer if you have an employer account but you (or she) will pay them if you have a private account.
She can contribute at any time in any manner she chooses--monthly, weekly, lump sum, whatever--as long as her total annual contribution is not more than the maximum for that year.
2. I plan to stay on such HDHP plan. working for another year or two, would her HSA's contributions be prorated to those months I am still covered by that plan? If I happen to retire early during a year, I assume the remaining months can not allow any further deductible contributions.
In any year where she is not covered by an HDHP for the entire year, her contribution limit is pro-rated on a monthly basis, with eligibility determined by her insurance coverage as of the first day of the month. In other words, if you terminate your insurance on July 15, she would be eligible for 7 months and her contribution limit would be 7/12th of whatever the maximum was for that year.
Finally, I hope such HSA money can be used later while we both no longer can be in any HDHP.
Your HSA funds belong to you forever. They can always be spent tax-free for qualified medical expenses for the account owner, their spouse, and their tax dependents. The rules for spending the money are not connected to the eligibility rules for making contributions. Also, if the account owner is age 65 or older, funds may be withdrawn for any reason and are subject to regular income tax (like an IRA) but not the additional 20% penalty that applies if you use funds for non-medical purposes under age 65.
