If you filed a tax return with a spouse who died in 2019 and you want to change the name of the taxpayer on the refund check, you must file Form 1310 Refund Due a Deceased Taxpayer. This form can be e-filed with the return.
To access Form 1310:
If you checked the box on Line A, you can return the joint-name check with Form 1310 to your local IRS office or the Internal Revenue Service Center where you filed your return. If you checked B or C: