Consult with your tax attorney for deductibility information specific to your tax information.
For publicly traded securities held for more than one year, your deduction generally will be the fair market value of the securities on the day of the contribution. The IRS will require you to obtain a qualified independent appraisal in certain circumstances.
For cash contributions, your deduction is generally the amount of cash you donate.
For securities not publicly traded that have been held for more than one year, your deduction will be the fair market value determined by you in a reasonable manner on the date the contribution is made. The IRS will require you to obtain a qualified independent appraisal in certain circumstances.
Business entities using a Corporate Giving Account may have different tax considerations.