What do mean by "include a Form 1041"? Form 1041 is not part of your personal Form 1040 tax return. It's a separate tax return for a trust or estate.
Or do you mean that you received a Schedule K-1 (Form 1041) that you have to add to your personal tax return? If that's what you mean, go to the following link for instructions to amend a 2020 tax return that you filed with TurboTax.
How do I amend my 2020 return?
It normally takes the IRS 16 weeks to process an amended return. But they are severely backlogged this year, so expect it to take much longer than that.
Don't file the amended return until your first return has been accepted and you have received the original refund.
