Calculating My Son's MAGI off His Tax Form, TurboTax Instructions are not Correct

[MichaudCJ]

I'm in the process of trying to get our taxes done, and have made it to the health insurance plan section in Deductions & Credits. I've just entered the info for our Marketplace insurance, and have come to the section asking about certain situations. One that applies to us is the "I have at least one dependent on my taxes who's filing a separate return." It then requests that I enter my child's MAGI. So I click on the learn more, and it provides instructions on how to figure that out, except, the instructions are WRONG.

According to the instructions: Your dependent child's MAGI can be calculated by adding any amount reported on Form 1040 lines 2a to the amount on line 8b.

Looking at his 1040, which was also prepared through TurboTax (online), and there is a problem. So, Line 2a is blank, no problem, it's a 0 then. Line 8b??  There is no line 8b! There is a line 8, "Other income from Schedule 1, Line 9", which is also blank.

Can anybody provide the ACTUAL instructions on how to calculate this? Since the line 8b is not right, is line 2a even correct?

[Critter-3 · Accepted solution]

The instructions are for the 2019 return ...   https://www.irs.gov/pub/irs-prior/f1040--2019.pdf

Here is the 2020 return ...  https://www.irs.gov/pub/irs-pdf/f1040.pdf

Translation for 2020 is add 2a to line 11.