What do you need to include in your donation acknowledgment letter? This checklist covers all the information you need to provide to register an organization as a charity in New York.Acknowledgements are generated from completed donation forms. All forms need to be legible and include complete donor information. Upon transfer of funds, we will send you a gift acknowledgement letter which may be used as a tax receipt. Submit Stock Donation Form. For example: "Dear Mike,. DO NOT sign an Acknowledgment of Parentage if, after reading this written notice and receiving oral notice, you have any doubts about the child's parentage.