for married filing jointly only 1 return is submitted. It's supposed to report the income of both spouses.
If that's what he did, then nothing needs to be done. Your return was rejected so you don't need to do anything.
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If he didn't include your income, that's a problem. Likely his return will not be fully processed because of your missing income.
see this link for filing an amended return ASAP to avoid penalties and interest for late filing and payment if taxes are owed.
https://finance.zacks.com/happens-file-taxes-married-jointly-forgot-add-income-2306.html
if the intent was not to file jointly, his return was well as yours would need to be married filing separately.
bith must itemize or use the standard deduction. Combined taxes on 2 MFS returns will likely result in higher total taxes than 1 MFJ return.
