Charitable contributions are fully deductible for estate tax purposes. Unlike donations for income tax purposes, there are no adjusted gross income percentages or other limits.
However, be sure to note some issues when donating IRAs to charity. If you have a single account for which there are multiple beneficiaries that include individuals (e.g., your child, grandchild) in addition to the charity, this can impact the required minimum distribution rules for the individuals. A better option is to split the IRA into separate accounts, creating one account for charity and separate ones for each of the individuals. Alternatively, if you want to continue with a single account, make it clear to the person you’ve named as executor, and to the individual beneficiaries themselves, to split the account after your death, but no later than September 30 of the year following the year of your death. Splitting the account will allow each of the individual beneficiaries to spread out required minimum distributions over his or her own life expectancy.
Items directly reducing income. Personal deductions such as for mortgage interest, state and local taxes, and charitable contributions are allowed only if deductions are itemized on Schedule A, but deductions such as for alimony, capital losses, moving expenses to a new job location, business losses, student loan interest, and IRA and Keogh deductions are deducted from gross income even if itemized deductions are not claimed.