Married Filing Separately You can choose married filing separately as your filing status if you are married. This filing status may benefit you if you want to be responsible only for your own tax or if it results in less tax than filing a joint return. If you and your spouse do not agree to file a joint return, you may have to use this filing status. You may be able to choose head of household filing status if you live apart from your spouse, meet certain tests, and are considered unmarried (defined later, under Head of Household). This can apply to you even if you are not divorced or legally separated. If you qualify to file as head of household, instead of as married filing separately, your tax may be lower, you may be able to claim the earned income credit and certain other credits, and your standard deduction will be higher. The head of household filing status allows you to choose the standard deduction even if your spouse chooses to itemize deductions. See Head of Household, later, for more information. Unless you are required to file separately, you should figure your tax both ways (on a joint return and on separate returns). This way you can make sure you are using the filing status that results in the lowest combined tax. However, you will generally pay more combined tax on separate returns than you would on a joint return for the reasons listed under Special Rules, later.