Receiving an IRS letter can be unsettling, especially when it mentions a balance, a possible change to a tax return, or a deadline. Most IRS correspondence concerns one specific issue and includes instructions for resolving it. The safest response is to read the notice carefully, verify what it concerns, and act by the date shown.
Why did the IRS send a letter?
The IRS may send a notice or letter for several reasons:
- A tax return was changed or corrected.
- The agency needs more information or documentation.
- Income reported by an employer, bank, or other payer does not match a tax return.
- A payment was not credited to the account.
- A refund amount changed.
- The IRS is requesting payment for a balance due.
- The agency needs to verify identity before processing a return or refund.
- A return appears to be missing.
An IRS letter does not automatically mean that a taxpayer is being audited or accused of wrongdoing. Some notices are informational and require no response. Others require a reply, payment, documents, or a correction.
What should be checked first?
Start with the notice number, tax year, response deadline, and reason for the letter. The notice or letter number—often beginning with “CP” or “LTR”—is usually printed near the top or in the upper-right area.
Review these details:
- The taxpayer’s name and address
- The tax year involved
- The amount shown, if any
- The explanation of the proposed change
- The requested documents or information
- The date by which a response is required
- The address, online submission method, or fax number for replying
Compare the notice with the relevant tax return, W-2 forms, 1099 forms, payment confirmations, and other records. A letter may concern an older tax year, even if the current year’s return was filed without a problem.
Keep the original notice. Make copies of anything sent to the IRS, including the response letter and supporting records.
Do you have to respond?
Not always. If the notice confirms an adjustment that is correct and does not request information or payment, a response may not be necessary. The letter should state whether action is required.
A response is generally needed if:
- The notice requests documents or an explanation.
- The taxpayer disagrees with the proposed change.
- A balance is due.
- Identity verification is required.
- The IRS asks for a missing return or additional form.
- The notice gives a deadline for preserving appeal rights.
Do not assume that silence means the matter will disappear. If a response is required and the deadline passes, the IRS may finalize a proposed change, add penalties and interest, or begin additional collection steps.
What if the information is correct?
If the notice is accurate, follow the instructions exactly. This might mean making a payment, submitting a document, verifying identity, or simply keeping the letter for the records.
If a balance is due but the full amount cannot be paid, paying as much as possible by the deadline may reduce additional interest and penalties. The IRS may offer payment arrangements or other collection options, but eligibility depends on the taxpayer’s facts, the amount owed, filing history, and financial circumstances.
An extension to file a tax return generally does not extend the time to pay taxes that are already due. A notice involving an unpaid balance should be handled separately from any filing extension.
What if the notice is wrong?
A disagreement should be handled through the process described in the notice. Usually, the taxpayer must send a written explanation and copies of documents supporting the position.
A useful response typically includes:
- The taxpayer’s name and contact information
- The tax identification information requested by the notice
- A copy of the notice
- A clear explanation of the disagreement
- Copies—not originals—of supporting documents
- The tax year and issue being disputed
- The taxpayer’s signature, when required
The response should be sent to the address shown on the notice, not automatically to a general IRS address. Some notices allow secure online document submission or faxing, but those methods should be used only when the notice specifically permits them.
Meeting the deadline matters. Certain IRS letters provide a limited period to challenge a proposed assessment or protect appeal rights. A taxpayer who disagrees should not wait until the final day if records need to be gathered or mailed.
What records are most useful?
The appropriate records depend on the issue. Common examples include:
- W-2 and 1099 forms
- Brokerage or retirement account statements
- Receipts for deductible expenses
- Donation records
- Mileage or business expense logs
- Closing statements for property transactions
- Child-care or education records
- Proof of estimated tax payments
- Bank records showing an electronic payment
- Copies of previously filed returns
For a payment that the IRS did not credit, a confirmation number or transaction record may help. For a check payment, a copy of the canceled check can help establish when and how the payment was made.
Do not send irreplaceable originals unless the notice specifically requires them. Keep a complete copy of every submission and proof of delivery when mailing documents.
How can an IRS letter be verified?
Most first contacts from the IRS arrive by mail. Unexpected text messages, social media messages, emails demanding immediate payment, or phone calls threatening arrest are common warning signs of a scam.
A suspicious letter should not be trusted simply because it contains an IRS logo. Verify the notice number through the IRS notice and letter lookup tools or use the contact information provided through official IRS channels. Be cautious if a letter:
- Demands payment by gift card, wire transfer, cryptocurrency, or unusual payment method
- Uses a threatening tone or extremely short deadline
- Includes a questionable QR code or unfamiliar web address
- Requests sensitive information that does not match the stated issue
- Promises an unusually large refund
- Directs payment to an individual rather than the United States Treasury
Avoid using a phone number or website printed on a suspicious document until the letter has been independently verified.
What is different about an Indiana tax letter?
An IRS notice concerns federal taxes. A separate letter from the Indiana Department of Revenue may concern state income tax, withholding, sales tax, county tax, or another state matter. The response procedures and deadlines may be different.
Residents should first determine which agency sent the correspondence. Do not assume that resolving a federal notice automatically resolves a state notice. If both letters concern the same income or filing issue, keep them together and compare the tax years, amounts, and explanations.
Local households may receive tax mail during periods of job changes, retirement withdrawals, home sales, side work, or changes in withholding. Those events can create differences between information reported to federal and state agencies. A careful comparison of forms and filed returns can help identify whether the issue is a reporting mismatch, a missing document, or an actual tax error.
When is additional help justified?
Many routine notices can be resolved by following the printed instructions. More complicated situations may require assistance from a qualified tax representative, particularly when the letter involves an audit, a large proposed assessment, unfiled returns, payroll or business taxes, a levy, a lien, identity theft, or a formal appeal.
Free or reduced-cost assistance may be available for qualifying taxpayers through taxpayer assistance programs and low-income taxpayer clinics. A taxpayer facing immediate financial hardship may also have options for requesting help with an unresolved IRS problem.
The most useful first step remains the same: identify the notice, understand the deadline, gather records, and respond through the method stated in the letter. Ignoring the envelope usually creates more difficulty than opening it and dealing with the specific issue.