Your are both covered by a family HDHP the entire year, so the maximum regular contribution for 2024 is $8,300 combined, no matter which of your accounts receives the contributions. It doesn't matter which of the employers provides the HDHP insurance. So yes, the two of you can allocate all $8,300 of the contribution limit to his account and $0 to yours, or you can choose any other split you desire. When preparing your 2024 tax return with TurboTax, you'll simply indicate that each of you had family HDHP coverage for all 12 months of the year.
