Goodwill is an IRS-recognized 501(c)(3) charity, meaning people who donate items and get a receipt can file for a tax deduction. While it is a good idea to get receipts for any Goodwill donations, the IRS notes that, as of 2014, donations of $250 or more require a receipt.
The receipt from Goodwill, or any other nonprofit, should note that the items of value were donated without any delivery of goods or services. For the donation to be tax-deductible, the person cannot receive something of value in return. A receipt indicating the items, date and location is also helpful in the event of an audit.