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@HOPE2 wrote:

1040 page 1-2, 8962, 8863, sch 1 and 8995 got changed after amending, you meant I have to attach all of these forms to 1040-X?

Thanks

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@HOPE2 You can imagine how much time it took to assemble 1040X back in the days when they were all filed on paper, sorting out those forms, schedules, and statements that got changed and then stamping "As Amended" on top of each.

Yes, the IRS needs all these to process the amended return because they need to be able to see what has changed and how the numbers flow.  The 1040X is simply a summary of the various changes.  The IRS is just the same as you - there is no way you could have reviewed and approved the 1040X without those details.