Single Tax Filing Status
Single You need to use the single filing status, if you were never married, you were legally separated according to your state law, under a decree of divorce or separate maintenance.
Married Filing Joint You can file a joint return with your spouse,if you were married at the end of the year.
Married Filing Separate in one Form If you and your spouse file separately on one form.
Married Filing Separate in two Form If you and your spouse file separately on two separate forms.
Head of household If you are filing as head of household for federal income tax purposes.
Qualifying widow(er) If you meet the requirements for qualifying widow(er) for federal income tax purposes.