Get your taxes done using TurboTax

@yolotom TurboTax does not have a Business Edition which will run on a Mac.  My only suggestions would be to get the Parallels application for your Mac to run a Windows program.  Or use the IRS Form 1041 and Instructions to complete the 1041 by hand - https://www.irs.gov/payments/online-payment-agreement-application  Or seek out a local tax professional to assist you with completing the Form 1041 for the estate.