Letter 525: the examiner has proposed changes
- What it is
- General 30-day letter (audit results)
- Type
- Proposed change or audit
- Your deadline
- "You should file your protest within 30 days from the date of this letter to appeal the proposed adjustments with the Independent Office of Appeals."
- To
- You
- From
- Blaga Veleva, EA
- Re
- Audit results letter
Letter 525 is the IRS general 30-day letter: your audit is finished and the examiner proposes changes, shown on the enclosed Form 4549. The most important step is to decide within 30 days whether to agree or to protest and ask for an appeal. Blaga Veleva, EA can go through the report with you item by item and prepare the response.
What does Letter 525 mean?
It means the examination stage is closing. Form 4549, the examination report, lists each proposed change and the tax that results. Your choices are to accept it, or to push back with documents and request an appeal.
Proposed is the key word. Until you sign or the time runs out, the changes are the examiner's position, not a final bill. You can accept some items and challenge others.
How much time do I have?
The IRS Appeals page quotes the letter: "You should file your protest within 30 days from the date of this letter to appeal the proposed adjustments with the Independent Office of Appeals." Count from the date on the letter, not the day it reached you. Source: IRS letters offering an appeal.
What happens if I ignore it?
Per the Taxpayer Advocate Service, the IRS may disallow what you claimed and issue a Notice of Deficiency. That notice opens a 90-day window to petition the U.S. Tax Court, or 150 days when it is addressed to someone outside the United States. Missing the 30 days skips the Appeals step that a timely protest would have opened.
What should I do this week?
- Find the date of the letter and count 30 days.
- Read Form 4549 and list each change you disagree with.
- Gather the records for each disputed item.
- If you need more time, ask the examiner before the due date.
- Decide between agreeing, sending more documents, or filing a protest.
What goes into a protest?
A protest is a written explanation of which proposed changes you disagree with and why. For each one, it sets out the facts and the reasons the examiner's position is wrong, backed by the records you have. IRS Publication 5, Your Appeal Rights and How to Prepare a Protest If You Don't Agree, lists what the IRS expects to see.
Keep it organized by item, in the same order as Form 4549. Appeals officers are separate from the examiner, so the protest should make sense to someone reading your file for the first time.
How an Enrolled Agent helps with Letter 525
Blaga reviews the examiner's Form 4549 with you item by item. She sends more documentation, or asks for more time before the due date. If that doesn't settle it, she can request a conference with the examiner's manager and then a written appeal to the IRS Independent Office of Appeals. Form 12203 may apply if the proposed amount per period is $25,000 or less.
With Form 2848 signed, she stands in for you in those talks. Clients meet her on FM 1960 W in Houston or work through her secure portal. More on the process: IRS audit help.
What usually comes next?
If you agree, the tax is assessed and billed; a payment plan can follow, and penalty relief is worth checking. If you protest, Appeals reviews the case. If nothing is resolved, a notice of deficiency may be next.
Not in the decoder yet. Read it to us.
Call (281) 785-0460 Send it to us
That does not mean it is unusual. The IRS sends many different notices and letters. Read us the number and the date printed on it, and Blaga will tell you what it is and what it asks you to do.
Check the letters before the number too (CP, LT or Letter), in the top right corner. See every letter in the decoder.
Type the number from the top right corner of your letter, for example CP504 or LTR 1058. No number? Try a word like levy, lien or audit.
Which one is it?
Look at the letters printed just before the number, top right of the first page.
Still not sure? Call (281) 785-0460 and read it to us.
Which letter is it?
The number is in the top right corner of the first page, for example CP14 or LTR 1058. Type it above, tap a common one below, or see every letter the decoder covers.
- What it means
- Your deadline
- If it waits
- How an Enrolled Agent can help
Have Blaga read yours Full guide
Source: irs.gov. This is a plain-English summary, not advice on your case.
Questions people ask
Q1What is a 30-day letter from the IRS?
It is the letter that closes an audit with proposed changes, such as Letter 525. It gives you 30 days from the letter date to file a protest with the Independent Office of Appeals.
Q2What is Form 4549?
It is the examination report that comes with Letter 525. It shows each proposed change to your return and the resulting tax.
Q3Do I need a formal protest or can I use Form 12203?
Form 12203, a small case request, may apply if the proposed amount for each period is $25,000 or less. Larger amounts generally need a written protest.
Q4Should I sign Form 4549 if I disagree?
No. Signing means you agree. Respond with documents or file a protest instead, within the 30 days.