He didn't understand the whole 2021 tax filing issues either so he is addressing that.
Here's the deal - since your incomes are disparate, filing jointly means less taxes paid overall. However, YOU would likely owe less taxes filing separately. So you could have the accountant who does your taxes run them both way - separately and together - and have your H pay you enough to bring your tax liability or refund to where it would be if you filed separately. This would likely still save him money.
Theoretical example:
Filing separately, let's say you would get a $4,000 refund and he would owe $10,000 extra in taxes.
Filing together, there's a $5,000 refund.
If you file together, you should get $4,000 from the refund and he gets $1,000. (and he doesn't end up owing that extra $10k).
