If you are married and living with your spouse at any time during the last six months of the year you cannot file as Head of Household.
When you are married you should be filing as Married Filing Jointly even if one spouse has little or no income. You receive the highest standard deduction of $12,600 and you each receive a personal exemption of $4,050.
Even if you could file as HOH the standard deduction is $9,300, which is far less than the standard deduction for Married Filing Jointly.
