You would need the TurboTax Business Edition to complete a Form 1041 U.S. Income Tax Return for Estates and Trusts

However, the Business Edition can only be installed on a personal computer that supports the Windows operating system, not on a MAC OS or online.

See this TurboTax website for the Business Edition - https://turbotax.intuit.com/small-business-taxes/

IRS Form 1041 - https://www.irs.gov/pub/irs-pdf/f1041.pdf

IRS Form 1041 instructions - https://www.irs.gov/pub/irs-pdf/i1041.pdf

Explain why TurboTax Business is not available for Mac.

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@Bart Az wrote:

Explain why TurboTax Business is not available for Mac.

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Most likely a marketing decision based on potential sales versus cost of development and programming.

I believe some people have been able to run the Windows version on a Mac in an emulator program like Parallels.