Find answers to Frequently Asked Questions about how and why to support AHN with a financial contribution, including planned gifts from an estate. These forms will be useful when filing required documents related to estates of deceased or incapacitated persons.We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. Donation receipts are important! Here's how to create donation receipts your donors (and the IRS) will love. Please make check payable and mail to: Allegheny Health Network. Office of Development. Identify charitable purpose (must fall under the IRS permitted purposes). â–« Identify type of entity and structure. If you live in Allegheny County or Philadelphia, you also owe an additional 1 or 2 percent local use tax.