No, you can't file as head of household because you weren't legally separated from your spouse or considered unmarried at the end of the tax year. To be considered unmarried at the end of a tax year, your spouse may not be a member of your household for the last 6 months of the tax year and you must meet other requirements.
Your filing status for the year will be either married filing separately or married filing jointly.
- If you use the married filing separately filing status, you can't claim the earned income tax credit. You also cannot claim the credit for childcare expenses since you were considered married. Both credits require married taxpayers to file a joint return to be eligible for the credit.
- You may be eligible to claim these credits if you decide to file a joint return with your spouse.
See What is My Filing Status? and Publication 501, Dependents, Standard Deduction and Filing Information for information about filing status.