If your business accepts donations, such as cash or used goods, you need receipt letters to give out. Such letters are generally used for tax purposes by the individual who makes the donation.

When dropping off donations at thrift/resale stores, ask for a tax-deduction receipt for record keeping ... the IRS requires donors to receive a written letter of acknowledgement from the ...

A letter, while acknowledging the donation ... the donor's Social Security number or tax identification number. Provide a written disclosure in the receipt to donors who give more than $75 ...