Just amend your return by filing Form 1040x .I don't know if you have credits to be filed. As you know filing status is relevant when including credits. For example, you can't include education credit if you filing separately while you can in filing jointly. Also if you have retirement contribution credit, it also reflects the amount on your filing status .A few years ago, I made a mistake on my SS number, I didn't amend it. i called IRS and informed them about it. And that's it. Hope it helps.