The good time to claim any IRS deductions that you are entitled to is when you file your tax return. You can either check the standard deduction box or the itemized deduction box.

If you itemize, you will have to do a lot of other things to make sure that you claim your IRS deductions properly. If you chooses to claim the standard deductions, it is simple and you do not have to provide any proofs to the IRS.

The IRS will never ask you to provide proofs of your standard deduction in the same way it would itemized deductions.