No, you cannot NETFILE a tax return for a deceased person. The deceased’s legal representative (i.e. executor or estate administrator) will need to file what is called the Final Return, but may also need to file other returns, such as Optional Returns and the Trust Returns. There is a timeline when each type of return must be filed. If the person died between January 1 and October 31 of 2021, the Final Return is due on May 2, 2022. If the person died between November 1 and December 31, 2021, the return is due six months after the date of death. Check with the CRA for the timeline requirement for other types of returns that must be filed.