IRS Letter 4800C: Proposed changes after a return review
IRS Letter 4800C is a proposed change letter from the IRS. The IRS reviewed your return and proposes changes to income, withholding, or credits. This is not a bill. It describes a change the IRS wants to make, which you can agree or disagree with.
What this letter usually means
The IRS reviewed your return and proposes changes to income, withholding, or credits. This is not a bill. A proposed change is not a final bill. The letter usually asks whether you agree, and explains how to respond either way.
Category: The IRS proposes a change
What people usually do first
Complete and return the response form within 30 days of the date on your letter, with any supporting documents.
What to have ready
- The letter, every page
- A copy of the return it mentions
- Your W-2s and 1099s for that year
- Records for any item you disagree with
- The response form that came with the letter
What may come next
This letter does not point to a specific follow-up letter. Any later step will be described in mail from the IRS.
Read the IRS page
The IRS letter itself is the final word on what it means for you. Read the IRS page for 4800C.
Common questions about 4800C
What is IRS notice 4800C?
The IRS reviewed your return and proposes changes to income, withholding, or credits. This is not a bill. It is also called LETTER4800C, LTR4800C.
How long do I have to respond to a 4800C notice?
The date to respond or pay by, if there is one, is printed on your letter. Check it, and read the IRS page for 4800C for more.
Is a 4800C notice a scam?
A real 4800C comes by mail and should match your own records. You can also sign in to your IRS Online Account on irs.gov to see your account directly.
What should I have ready for a 4800C notice?
The letter, every page, A copy of the return it mentions, Your W-2s and 1099s for that year, Records for any item you disagree with, The response form that came with the letter.
The OweRight app explains the 4800C letter type in plain English.
Get early access to the appOweRight is not the IRS and does not give tax or legal advice.
Related notices
- IRS Notice CP2501: Income information doesn't match
- IRS Notice CP3219A: Notice of deficiency (90-day letter)
- IRS Notice CP3219N: Notice of deficiency for an unfiled return
- IRS Letter 3219B: Notice of deficiency after income mismatch
- IRS Notice CP2057: Income you may have left off
- IRS Notice CP2000: Proposed changes to your tax return