If you want to complete the deceased's final return yourself, get the CRA guide
T4011, Preparing Returns for Deceased Persons before proceeding. This
publication is available on the CRA website.
Important: You must prepare the deceased taxpayer's return on its own. You
cannot prepare your late spouse's return as a coupled return with your own return.
(To prepare a coupled return, both spouses must have the same marital status, either
"Married" or "Living common-law".)
Attention: Your deceased spouse's marital status is what it was on the day
of his or her death - either "Married" or "Living common-law." Choose "Widowed" as your
own marital status when you prepare your own return.
On the deceased taxpayer's return do the following: