How to Respond to an IRS 5071C Letter (Step-by-Step)
Step 1: Review the Letter Carefully
Check the tax year, letter number, and instructions listed in the notice.
Step 2: Gather Your Documents
You may need:
- Your prior-year tax return
- Your current-year tax return
- Social Security number
- Government-issued identification
Step 3: Verify Your Identity
Follow the instructions in the letter to complete online or phone verification.
Step 4: Monitor Your Refund Status
After verification, the IRS may continue processing your return and refund.
What If You Cannot Verify Online?
The IRS may provide alternative verification methods by phone or mail.
What Happens If You Wait Too Long?
Delays can extend refund processing and may trigger additional IRS review.
Learn more here: What happens if you ignore IRS 5071C.
Common Mistakes
- Ignoring the letter
- Using unofficial IRS websites
- Providing incorrect information
- Waiting too long to verify identity
Bottom Line
The best response to a 5071C letter is to complete identity verification quickly and follow official IRS instructions carefully.
Disclaimer: This content is for informational purposes only.

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