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@ifly4free

As you are recently widowed, and given that your husband ('his") passed away in 2018, you should be still filing a Married-Filing-Jointly for 2018 but enter the date of his death in the personal information.  That will significantly benefit you in the taxes applied.

As to any income received after this death and received in his name there are two answers available:

1. The legally correct answer as required by the IRS is that if $600 or more income was received in the name of a decedent in a year, then for the income received (and any possible deductible expenses owing to that income or any credits related) must be reported not on your joint filing, because it was after death, but on a separate Form 1041 in the name of his Estate (whether or not you file for a different EIN).  That means you would have to use a product such as TurboTax BUSINESS to create the 1041 and then have it generate the Schedule K-1 that would "pass through" that income (and expenses if any) to you or to whoever is the beneficiary who received the money ultimately. Given that $11,000 is considerably over $600, that is the legally structured reporting.  Note that for all practical purposes, the $11,000 is either taxes on the Form 1041 or taxed on your (assuming you are the beneficiary) Form 1040, so the IRS gets its money (more or less) either way.  However, if your husband did have considerable income and/or expenses that were received in 2018 after this death, it may be worth pursuing filing the Form 1041 (tax return for a decedent's estate or trust)
   
   
2. A work-around that you might consider, but again #1 is the legally correct way, would be for you to assert that the $11,000 was received "in Respect to a Decedent" ("IRD") and to simply report it on your Form 1040 and enter the Form 1099-R with the additional information (click on the Form 1099-R Box 1 Field and enter additional information with the dollar amount) that this was IRD.  That way, you still pay tax but it is a simplified process, albeit not the more complex process.