Can someone tell me why I owe state taxes in Maryland

[JotikaT2]

It depends. 

• Were you eligible for a tax credit last year that didn't apply this year
• Did you have another source of income this year which wasn't there last year?
• Did you change your job or withholdings?
• Did you have higher deductions last year than this year? 

I would recommend reviewing items you had input into your return last year to ensure you are not missing a deduction that you had reported in the past but may not have entered into your return this year.

[TomD8]

You could owe taxes to Maryland if you lived there part or all of the year, or if you worked in Maryland or had other Maryland-source income, such as rental income from a property located in Maryland.