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In 2015, I did not add the distribution to line 14a of form 8889 and did not enter that all of the distribution was used for qualified medical expenses on line 15. How do I amend the 8889 form to resubmit to IRS? Must I also resubmit entire 1040 if Line 21 Other Income remains as 0?
Filing with Form 1040X provides a place for your signature and your explanation, so, unless the IRS has explicitly asked you for only Form 8889, the corrected Form 8889 should be filed with Form 1040X. Form 1040 should not be included.
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