When filing a paper Form 1040-X (Amended Return), make sure the IRS can clearly see what’s changed. As a rule, print and attach any official IRS forms or schedules that have different numbers from your original return. Focus on printing the updated official forms from your PDF, not the internal “Worksheets” from TurboTax.
- Print Form 1116: You must include the newly corrected Form 1116. Even if it looks "simple" compared to the worksheet, this is the official legal document the IRS uses to process your credit.
- Print Schedule B (Form 1116): If your amendment involves carrying over a credit to a future year or using a past carryover, include the official Schedule B.
Don’t print the 1116 Worksheet. This worksheet is just for internal calculations in the software. The IRS doesn’t need it and usually throws it out. If they have questions about your numbers, they’ll ask for your backup documents, like 1099s or dividend statements—not the worksheet from your software.
- Since you are amending foreign dividend income, the IRS needs to see the source of the change. You must attach:
- Corrected 1099-DIVs: If you received a revised form from your brokerage.
- Dividend Statements: If you are manually correcting an amount, include the statement showing the gross dividend and the foreign tax withheld.
Explanation of Changes (Part II of 1040-X): This is the most important part. Write a concise note like: "Amending to include $X in additional foreign dividends from Vanguard that were omitted from original return. Recalculated Foreign Tax Credit on attached Form 1116."
I know this a lot of information, but I wanted to make sure you have everything you need.
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