1. Enter your income from: line 2 of the "Standard Deduction Worksheet for Dependents" in the instructions for federal Form 1040 or 1040-SR. To claim charitable donations, you'll need to itemize your deductions on your tax return instead of taking the standard deduction.Charitable Donations. The donor will use this letter as proof of his or her donation to claim a tax deduction. To claim a tax-deductible donation, itemize your deductions rather than using the standard deduction. The IRS and California allow taxpayers to deduct charitable contributions on their tax returns. Your contribution is eligible for an immediate tax deduction at the time your gift is made. 2. Grow your donation, tax-free. "Learn about 501(c)(3) donation receipt requirements, verification steps, and sample templates for tax-deductible donations. If I typically do standardized deductions, the donations (charitable contributions) aren't tax deductible right?