To determine whether you took the standard deduction or itemized in 2014, pull out last year's tax return and look on these lines:
- For the 1040, line 40
- For the 1040A, line 24
For 2014, the standard deduction amounts were $6,200 for Single or Married Filing Separately, $12,400 for Married Filing Jointly and $9,100 for Head of Household. If you had that corresponding amount, you took the standard deduction. For any other amount, you itemized.
Also, if you filed a 1040EZ, then you did in fact use the standard deduction.