It can take up to 20 weeks or longer before the IRS starts to process an amended tax return.
Check the status of the amended tax return on this IRS website - https://www.irs.gov/filing/wheres-my-amended-return
After three weeks, or much less, your e-Filed 1040-x should show received on IRS website.
If not, you should call IRS to find out why.
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