Efiling an amended return has been a rollercoaster of what is allowed and when. Currently, you need to mail all amended returns.
For NY instructions, see Amended returns
See Can I e-file my federal Form 1040-X amended return?
NY information on how to amend was recently updated 3/12/2024:
The Tax Department accepts electronically filed amended returns.
How to file an amended return
Complete your amended return as if you are filing the return for the first time.
Submit all the forms relevant to the information in your amended return (even if you already submitted these forms with your original return), such as:
- forms for any credits you are claiming or amending,
- forms you submitted as attachments to your original return that are still applicable (for example, IT-196, IT-227, IT-558, IT-201-ATT, or IT-203-ATT), and
- all your wage and tax statements, such as Form IT-2.
Do not submit a copy of your original Form IT-201, IT-203, or IT-195.
See the instructions for Form IT-201-X or IT-203-X for additional information about what to submit with your amended return.
See the instructions for the form you originally filed (Form IT-201 or Form IT-203) to determine which form to file when amending your return (Form IT-201-X or IT-203-X).
Additional information
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