The Internal Revenue Service (IRS) processing of amended tax returns – filed using Form 1040-X – is often a waiting game. Expect a typical turnaround time of 16 to 20 weeks, though delays are common. This is because amended returns undergo manual review, unlike original filings which are often processed electronically.

Understanding the Timeline

The IRS provides an online tool, “Where’s My Amended Return?”, but it takes roughly three weeks after filing for your return to appear in the system. Here’s a breakdown of what to expect:

  • Week 0: Submit your Form 1040-X, either electronically or by mail. Keep proof of filing.
  • Week 3: The IRS system should register your return as “Return Received.”
  • Weeks 4-16: IRS specialists manually compare your amended return to the original, verifying documentation and recalculating figures. This is the longest phase.
  • Weeks 16-20: If all checks out, the status changes to “Adjusted” or “Completed.” You’ll then receive either a refund check or a notice if you owe additional taxes.

Common Delays & How to Avoid Them

Errors on Form 1040-X can significantly prolong processing. Before filing, confirm you haven’t:

  • Left the “Explanation of Changes” section blank.
  • Forgotten to include supporting documents (corrected W-2s, 1099s, schedules).
  • Omitted your signature and the date.
  • Filed multiple tax years incorrectly on the same form.
  • Failed to pay any balance due.

Even seemingly minor mistakes can stall your return, so double-check everything.

What the IRS Status Updates Mean

The IRS uses three key status messages:

  • Return Received: Your return is in the system, but not yet reviewed.
  • Return Adjusted: The IRS has processed your changes and will send a letter explaining any refund or balance adjustments.
  • Return Completed: Processing is finished, and your refund or payment notice is on its way.

Refunds from amended returns are usually sent as paper checks, even if you received direct deposit for your original return. Allow additional time for mail delivery.

Electronic Filing & Future Updates

The IRS is expanding electronic filing options for Form 1040-X, which can reduce mailing delays. However, manual review remains a bottleneck. Tax season backlogs can further extend wait times, especially for paper-filed amendments.

When to Contact the IRS

Avoid calling unless it’s been longer than 20 weeks since filing, your status hasn’t changed, or you’ve received an “Adjusted” notice but no refund or payment details. When calling 866-464-2050, have your Social Security number, filing status, claimed refund amount, filing date, and a copy of Form 1040-X ready.

Bottom line: Amended returns take time. Use the IRS tracking tool, review the checklist to avoid errors, and only contact the IRS if you’ve exceeded the 20-week mark. The manual nature of the process means patience is key.