Which of the following documents is used to verify an amendment (1040X) was filed by the member?

The Record of Account Transcript serves as the appropriate document to verify that an amendment, specifically Form 1040X, has been filed by a member. This transcript combines information from both the tax return and any adjustments made to the account, including the details of amended returns.

When a member submits an amendment, the Record of Account Transcript reflects the status of that amendment along with the original return, providing a comprehensive overview of any changes made to the taxpayer's account. This is crucial for confirming the filing and understanding the implications of any changes in tax liability.

Other transcripts, such as the Account Transcript, Tax Return Transcript, and Wage and Income Transcript, serve different purposes. While they contain valuable information about a member’s tax history, they do not specifically indicate the filing of an amended return like the Record of Account Transcript does.