If you are taking the Standard Deduction only cash donations can be entered of up to $300 if filing as Single, MFS or HOH. Up to $600 cash donations can be entered if filing as Married Filing Jointly.
Those donations are shown on Form 1040 Line 12b.
A charitable contribution is usually entered as an itemized deduction on Schedule A. The total of all itemized deductions must be greater than the Standard Deduction for your filing status to have any affect on your tax return.
