Considered Unmarried
Step1
Determine that you were not legally married as of December 31 of the tax year.
Step2
Or, determine that, as of December 31 of the tax year, you were legally separated under a separate maintenance order issued by a court.
Step3
Or, determine that, as of December 31 of the tax year, you had not lived with your spouse at any time during the last six months of the tax year.
Qualifying Person
Step1
Make sure that your child, adopted child, stepchild or grandchild lived with you more than half the year. The child does not have to be your dependent if you have stated in writing that the noncustodial parent may claim the dependent exemption, if the other parent obtained the dependent exemption in a pre-1985 divorce or separation agreement, or if your child earned more than his or her standard deduction and is single.
Step2
Or, make sure that one - or both - of your parents was your dependent. A parent does not have to have lived with you.
Step3
Or, make sure that a grandparent, stepparent, parent-in-law, brother, sister, stepbrother, stepsister, brother-in-law or sister-in-law, or a blood-related uncle, aunt, niece or nephew lived with you more than half the year and was your dependent.
Step4
Or, make sure that a foster child lived with you the entire year and was your dependent.
Cost of Keeping Up a Home
Step1
Calculate that you paid more than half the cost of keeping up a home for you and your qualifying person for the tax year.
Step2
Or, calculate that you paid more than half the cost of your dependent parent's main home for the tax year.
Step3
Include all household expenses such as food eaten at home, rent, mortgage payments, property taxes, home insurance, cleaning supplies and utilities.
Step4
Check the box for head of household on line 4 of the 1040 or 1040A.