No matter whether you choose to take standard or itemized deductions, you will pay federal tax on a smaller amount of your income. However, one will likely lead to a greater deduction than the other, depending on your situation.
Most taxpayers choose to take the standard deduction. As it is based on a fixed amount, it is a much faster process. For itemized deductions, in contrast, you need to list each eligible expense. If you have few or no expenses that qualify you for itemized deductions, the standard deduction will be the better option for you.