Donating stock is one of the most tax-efficient ways to give. A direct stock donation through Overflow means up to 20% more value for your donation because of the capital gains tax savings.
When you donate appreciated assets you have held for a year or more, such as real estate or stocks, you receive a charitable giving deduction for the fair market value of the asset (up to 30% of your AGI) and normally avoid capital gains tax, too.