I do not use Sage 50 for donation receipts for a Charity. Yes it can be done through many modifications to the invoice template and then you have to enter each donation individually. You will also have to be sure that the receipt template is maintained fully to be compliant with the CRA requirements. This is very time consuming and there is an easier way.

I highly recommend using a program designed for donation receipts only. Software4nonprofits has a program called Donation which handles the receipting and it is maintained on a regular basis. The cost for this program is $75 to purchase and $75 each year to maintain. The receipts can be printed or emailed directly from the program. There are a number of reports available but only one I use regularly, which provides all of the detail for a recurring entry in Sage 50 each day of inputs. This program is worth looking into for your purposes.

I have all of my church and charity clients (30) on this program and I have recommended it to many others who have installed and are completely satisfied.