How do I file an amended return (Form 1040-X)?
If you need to correct a tax return you’ve already filed and the Internal Revenue Service (IRS) has accepted it, you’ll file an amended return using Form 1040-X.
An amended return updates your original return—it doesn’t replace filing for the first time.
Before you file an amended return
Before getting started, make sure that:
Your original return has been accepted by the IRS
You understand what needs to change (income, credits, dependents, etc.)
You have a copy of your original return and any new or corrected documents
If your original return hasn’t finished processing yet, it’s usually best to wait before filing an amendment.
Can I file an amended return with april?
At this time, amended returns can’t be filed through april.
To amend your return, you’ll need to file Form 1040-X directly with the IRS.
How to complete Form 1040-X
When filling out Form 1040-X:
Enter the amounts from your original return
Enter the corrected amounts
Explain what changed and why in the explanation section
Be sure to include any forms or schedules affected by the change, even if only one number was updated.
How to submit your amended return
You can submit Form 1040-X in one of two ways:
E-file, if the IRS allows electronic filing for the tax year you’re amending
Mail a paper return to the IRS
If you’re mailing your amended return:
Print and sign Form 1040-X
Attach all required forms and schedules
Mail it to the IRS address listed in the form instructions
Timing and deadlines to know
To claim a refund, you generally need to file an amended return:
Within three years of filing your original return, or
Within two years of paying the tax
Whichever date is later applies.
If you file an amended return before the original filing deadline, it replaces the original return and may help you avoid interest or penalties if you owe additional tax.
What about state tax returns?
If you amend your federal return, your state return may also need to be amended.
State rules vary, so check your state tax agency’s website for instructions. Don’t attach your state return to your federal amended return.
What to expect after you file
Amended returns take longer to process than original returns.
In most cases, you should expect processing to take:
8 to 12 weeks, and
Sometimes up to 16 weeks
This timeline can vary based on IRS workload and your specific situation.
Key takeaway
Filing an amended return is the right step when something on your accepted return needs to change. As long as you use Form 1040-X, include the right forms, and file within the deadline, the IRS will process your update—even if it takes a bit more time.
This content is provided for informational purposes only and should not be construed as tax, legal, financial, accounting, or other advice. Rules and regulations vary by location and are subject to change, so please consult with an expert if you need advice specific to you.
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