It depends. State income taxes are deductible on your Federal Return on Schedule A, which is where you claim itemized deductions. You will need to have more itemized deductions (which include mortgage interest, medical deductions, real estate taxes, and charitable deductions, along with a few other items) than your standard deduction to see a benefit. If you are filing as single, the standard deduction is $12,000, if Head of Household, it is $18,000, and if Married Filing Joint, $24,000.
**Mark the post that answers your question by clicking on "Mark as Best Answer"