I suggest that your husband pays you through a W-2, or through a 1099-NEC, that way he is paying taxes on those wages. Any payments $600 or more should go on a 1099-NEC, or a W-2.
Your husband can write off those wages paid to you on his business, but any wages or contract labor $600 or more should be reported on 1099's, you may get a letter from the IRS if wages are paid and deducted, with no 1099's issued.
Filing jointly is usually always better than separately for better tax credits & better standard deductions. It would be advantageous to write off the wages, but the 1099's would need to be issued, and the 1099's and/or W-2's you receive should be reported on the tax return.
