For 21 years my husband and I have filed as married filing jointly. He is employed outside the home . He makes 43,000 a year . I am on Social Security disability , and I'm also self-employed . I make 16,000 a year between Social Security and self-employment . I do not have any taxes taken out of my 16,000 I receive a year . Would it be to our advantage for both of us to switch to filing single ? Would this cause us any problems with the IRS ? Would this make us more likely to be audited ?