So----are you filing married filing separately? If you are saying you are married you cannot file as Single. If you file MFS you have to follow all the rules of filing MFS, which means if one of you itemizes, the other one also itemizes deductions or you both have to use standard deduction
STATES THAT RECOGNIZE COMMON LAW MARRIAGE
CO, DC, CO, IA, KS, MT, OK. RI, SC, TX, UT
Some of the special rules for filing separately include: you cannot get earned income credit, education credits, adoption credits, or deductions for student loan interest. A higher percent of your Social Security benefits may be taxable. Your limit for SALT (state and local taxes and sales tax) will be only $5000 per spouse. In many cases you will not be able to take the child and dependent care credit. The amount you can contribute to a retirement account will be affected. If you live in a community property state, you will be required to provide additional information regarding your spouse’s income.
Community property states: AZ, CA, ID, LA, NV, NM, TX, WA, WI)
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
