When you are legally married and living together you can only file as Married Filing Jointly or Married Filing Separately. You cannot claim a spouse as a dependent. You would want to file as MFJ as this will give you the best tax outcome in most cases even if one spouse has little or no income. You receive the highest standard deduction of $12,200 and you both receive a personal exemption of $3,900 (basically claiming yourself and your spouse)
