Donations of certain household items and clothing are often tax deductible when you file your income tax return. Learn how much of your donation is tax deductible and how to maximize your return.Save the Children explains how the tax law affects charitable giving. The Donation Value Guide below helps you determine the approximate tax-deductible value of some of the more commonly donated items. Step 1: Complete the taxpayer information section. If you want your deductible charitable contributions you must itemize your donation deduction on Form 1040, Schedule A: Itemized Deductions. There's no charity tax deduction minimum donation amount required to claim a charitable deduction. Claiming tax-deductible charitable donations. To reap tax benefits for making charitable donations, you must itemize your deductions rather than taking the Standard Deduction. Not all tax-exempt organizations quality for tax deductible charitable contributions, for example.