The short version
An IRS notice after a scam loss deduction does not automatically mean the deduction is wrong. It does mean the response has to be organized around the notice deadline, the exact IRS question, and the proof that supports the loss.
Do not answer only with the story of the scam. For a theft or financial scam loss, the IRS will usually care about the legal category, the year claimed, the amount, and whether the file shows a transaction entered into for profit, no reasonable recovery path, and a theft under applicable law.
Start with the notice, not the emotion
The IRS notice page says the IRS may send a notice or letter if it has a question about a return, changed or corrected a return, needs identity verification, or shows a balance due. It also tells taxpayers to review the notice carefully, keep it for their records, act by the due date if a response is requested, and include information and copies of documents when disputing the notice.
That makes the first step mechanical:
- Identify the notice or letter number.
- Write down the response due date.
- Confirm the tax year and line item the IRS is questioning.
- Separate whether the IRS is asking for documents, proposing a change, or stating an amount due.
- Preserve a copy of the notice and every response you send.
If the notice looks suspicious or does not appear in the IRS notice search, the IRS tells taxpayers to call 800-829-1040 and follow the representative’s instructions. Do not upload documents, call a number, or click a link from a suspicious message until you confirm the notice is real.
What the law actually says
IRC 165 allows a deduction for a loss sustained during the taxable year and not compensated by insurance or otherwise. For individuals, the statute limits deductible losses to business losses, losses from transactions entered into for profit, and certain casualty or theft losses.
For financial scams, IRS Publication 547 gives the current public IRS framing. It says victims of certain financial scams may claim a theft loss deduction under section 165 only if three conditions apply: the loss resulted from criminal conduct classified as theft under applicable state law, the taxpayer has no reasonable prospect of recovering the stolen funds, and the loss arose from a transaction entered into for profit.
IRS Topic 515 also confirms two timing points that matter in a notice response. Since tax year 2018, individual taxpayers may be able to deduct theft losses incurred in a trade or business or a transaction entered into for profit. Theft losses are generally deductible in the year the property was discovered stolen unless there is a reasonable prospect of recovery through a reimbursement claim.
Those rules turn the notice response into a proof problem. The IRS is not just asking whether you lost money. It may be testing whether the loss fits the tax category you claimed.
Build the response file around the IRS questions
A strong response file is usually organized by element, not by document type. A loose folder of screenshots can still fail if it does not answer the legal questions.
| IRS question | What the response file should show | Source anchor |
|---|---|---|
| Was there a theft or qualifying financial scam? | Police report, platform complaint, bank fraud report, complaint records, transaction narrative, and state-law theft analysis if needed. | Publication 547 financial scam guidance |
| Was the transaction entered into for profit? | Investment pitch, account setup, transfer records, expected-return communications, trading-platform records, or other nonpersonal profit evidence. | IRC 165 and Publication 547 |
| Was recovery still reasonably possible? | Bank recall results, insurance correspondence, exchange tickets, restitution or receivership updates, civil claims, denials, settlements, or records showing no practical recovery source. | Topic 515 and Publication 547 |
| Is the claimed amount supported? | Transfer records, account statements, basis records, reimbursements received or expected, and the Form 4684 workpapers used for the return. | Publication 547 proof-of-loss guidance |
| Did the response protect the deadline? | Copy of the notice, response due date, mailed or uploaded submission copy, and delivery confirmation. | IRS notice guidance |
The file should make it easy for the IRS reviewer to connect each document to a point. Labeling the file by element also helps if the matter later moves from a document request to an audit, proposed adjustment, or Appeals posture.
The numbers that matter first
Many IRS notices are deadline documents. The exact date comes from the notice itself, but these source-backed reference points help frame the first review.
| Response point | Figure or threshold | Why it matters | Source |
|---|---|---|---|
| IRS notice identifier | CP or LTR number | The IRS says the notice or letter number is used to get details on the specific notice. | IRS notice guidance |
| Financial scam deduction screen | 3 conditions | Publication 547 identifies theft under state law, no reasonable prospect of recovery, and a transaction entered into for profit. | Publication 547 |
| Current individual theft-loss limitation period | Tax years beginning after 2017 | Topic 515 says individual theft losses are allowed if attributable to a federally declared disaster, and may also be deductible when incurred in a trade or business or transaction entered into for profit. | Topic 515 |
| Discovery-year timing rule | Year discovered, unless recovery prospect delays it | Topic 515 says theft losses are generally deductible in the discovery year unless a reimbursement claim has a reasonable prospect of recovery. | Topic 515 |
| Proof burden for deduction | Show theft and support amount | Publication 547 says taxpayers must be able to show there was a casualty or theft and support the amount deducted. | Publication 547 |
The table does not replace the notice deadline. The notice controls the next action date.
If you agree, disagree, or only partly agree
The IRS notice page separates the response posture into practical lanes. If you agree, you generally take the requested action and do not reply unless the notice asks for a reply. If you disagree, the IRS says to follow the notice instructions and include information and copies of documents for review. If the notice shows an amount due, the IRS says paying by the due date can reduce interest and penalties even if the full amount cannot be paid.
For a scam loss deduction, “partly agree” can be common. You might agree that one document was missing but disagree that the deduction should be fully disallowed. You might agree that a reimbursement reduced the amount but disagree with the IRS timing adjustment. You might agree that the notice is asking about the right issue but disagree with the legal conclusion.
The response should state the lane clearly:
- “I agree” if the IRS correction is right.
- “I disagree” if the deduction, timing, or amount is still supported.
- “I partly agree” if the response should concede one point while preserving another.
Do not concede the entire deduction just because the first response file was weak. Also do not double down on a filed position if the records do not support theft, profit motive, recovery timing, or amount.
What not to send
Do not send original records unless the IRS specifically requires them. Send copies and keep the originals.
Do not send a large unsorted package. A 100-page file with no index can make the facts harder to follow. A cleaner package usually includes a short cover letter, a table of documents, and labeled exhibits tied to each disputed point.
Do not rely on sympathy alone. The notice response should be human, but the deduction rises or falls on rules and proof.
Do not ignore related issues. A notice about a loss deduction can connect to penalties, interest, amended returns, state notices, refund timing, collection options, or Appeals rights. The right response strategy depends on the notice type and the deadline.
Related reading
For the underlying eligibility rules, see the planned IRC 165 scam-loss eligibility hub and the planned article on the reasonable prospect of recovery test. Those internal links should be added only after the owner approves and publishes the live pages.
If the IRS moves from a notice to an audit or proposed adjustment, the response strategy changes from document supplementation to dispute management. The planned audit-defense article should be linked only after it is live and owner-approved.
How Sheepdog Tax Resolution can help
Request a case evaluation to determine the strongest response strategy. The review focuses on the notice deadline, the exact IRS issue, the loss-deduction proof file, and whether the next move should be document response, amended-return analysis, audit defense, Appeals preparation, payment planning, or another resolution path.
Sheepdog Tax Resolution is veteran-owned and operated by Noah Green, CPA, CFE. No result is guaranteed. The strongest response depends on the notice, the deadline, the law, and the records available to support the position.
Sources (primary authority first)
- 26 U.S.C. 165, Losses.
- IRS, Understanding your IRS notice or letter.
- IRS Publication 547 (2025), Casualties, Disasters, and Thefts.
- IRS Topic 515, Casualty, disaster, and theft losses.
Prepared by Noah Green, CPA, CFE.