How is MAGI calculated for Roth IRA

[phildonnia]

TurboTax adds back my partnership losses to my AGI to figure out MAGI.  This seems to be correct, as it's described in numerous places on the intuit site, including here: 

https://turbotax.intuit.com/tax-tips/irs-tax-return/what-is-the-difference-between-agi-and-magi-on-y...

What I want to know is why the IRS publication doesn't mention this in its own worksheet, found here:

https://www.irs.gov/publications/p590a#en_US_2019_publink[phone number removed]

Does TurboTax have some other source for this calculation besides the IRS publications?  How can I know this is correct?

[dmertz]

"TurboTax adds back my partnership losses to my AGI to figure out MAGI."

Ignore that TurboTax FAQ.  It's horribly misleading by in appropriately lumping all different types of modification to AGI for the many different purposes and Intuit refuses to correct or delete it.  There is no add-back of the partnership losses in calculating MAGI for the purpose of a Roth IRA contribution and TurboTax does not do such an add-back.

[David Blanco]

Turbo Tax Premium is calculating my and my wife's combined income (married filing jointly) as only her income, and is saying this MAGI is too high for an individual to be able to contribute to a ROTH. I think the program is comparing our joint income as though it's a single person, and against the single limit ($123K) rather than the joint income limit ($193K). Can you please check the software and make an update/suggest a workaround if necessary?

[macuser_22]

TurboTax uses the correct amount.  See the "Roth IRA Contribution Limit Worksheet" line 2 that should be $193,000 for MFJ.