We've created this stepbystep guide on everything you need to know about creating a donation receipt letter for tax purposes. Learn how to easily create your donation receipts and the best practices to follow in the year-end receipts to your donors.Include the nonprofit's EIN so the the donor can to check the charity's tax-exempt status with the IRS. With DonorPerfect, you can record inkind donations and include them in your endofyear tax letters in a flash. After incorporating, nonprofits should file their 501(c)(3) status. Below are resources to help you get started. Code of Ethics to guide all County Officials in making decisions and in the performance of their lawful duties.