Can you claim married on your tax form if you do not live with your spouse?

Yes. Your filing status is determined by the last day of the tax year. If you're not divorced under a final decree by the last day of the year, then you're considered still married. Your choice is either be Married Filing Jointly or be Married Filing Separately. Married Filing Separately generally has a higher tax rate than Married Filing Jointly.

If you have any dependents, you might be able to file as Head of Household.

For more information, go to www.irs.gov/formspubs for Publication 501 (Exemptions, Standard Deduction, and Filing Information).