An organization that is not required to file a full IRS 990 return must file a Pennsylvania Public Disclosure Form BCO-23. It should provide written acknowledgment of donations it receives (known as donation receipts) so that donors may claim a tax deduction for their contribution.Below are the donation lines that have been established within Pennsylvania personal income tax law. In sum, businesses in the Commonwealth of Pennsylvania may claim the general or enhanced federal tax deductions for food donations. Sample Donor Acknowledgement Letter for Cash Donation. All donors receive a charitable tax receipt or acknowledgement for all donated items upon acceptance of approved and completed form. To prove a charitable donation for which you claim a tax deduction, you must comply with IRS substantiation requirements. The money she is paid is from donations. She had to fill out a W9 form and ended up owing a lot in taxes. The organization may not provide the donor with a value for the donated item in the gift acknowledgement (i.e.