Receiving mail from the IRS can be stressful. Whether it’s a simple informational notice or something that requires immediate action, understanding what the IRS is asking for—and how to respond—is critical to protecting your tax position. At Liou Law Corp, we help clients navigate IRS correspondence with confidence and clarity.
Why the IRS Sends Notices
The IRS sends notices for many reasons: to request missing information, report discrepancies in your return, propose tax adjustments, demand payment, or simply inform you of changes to your account. Not all IRS notices indicate a problem, but all require careful attention. Missing deadlines or responding incorrectly can result in penalties, interest, and audit complications that could have been avoided.
Common Types of IRS Notices
CP2000 and CP2501 Notices
These are among the most frequent notices taxpayers receive. A CP2000 indicates that the IRS has information (from third parties like your employer, bank, or investment firm) that doesn’t match your return. For example, the 1099-INT you received from your bank might show more interest income than you reported. The IRS isn’t accusing you of wrongdoing—they’re asking you to explain the difference. You can agree, disagree with supporting documentation, or request additional time. Many clients simply need to amend their return or provide clarification.
Audit Notices (CP75, Notice of Examination)
If the IRS selects your return for audit, you’ll receive a formal notice of examination. This may be a simple correspondence audit (handled by mail) or a field audit (requiring in-person meetings). The notice specifies which items are under examination and the period covered. This is when professional representation becomes especially valuable, particularly for complex returns involving business income, rental property, or international transactions.
Payment Notices (CP501, CP502, CP503)
These notices indicate you owe money. The IRS may have assessed additional tax, or you may have missed a payment deadline. These notices escalate—a CP501 is the first notice, followed by CP502 and CP503 if you don’t respond. If ignored, they can lead to wage garnishment, bank levies, or liens. Never ignore these notices.
Notice of Deficiency (90-Day Letter)
This is a critical notice. It means the IRS is proposing a tax adjustment and giving you 90 days to petition the Tax Court before they officially assess the tax. If you disagree, this is your last opportunity to challenge the assessment in court before the IRS can collect. The stakes are high, and professional guidance is essential.
Collection Due Process Notice (CDP)
This notice precedes wage levies, asset levies, or property liens. It informs you that the IRS intends to take enforcement action and offers you a hearing before a revenue officer. This is an important opportunity to discuss payment plans, offer-in-compromise options, or challenge the underlying tax assessment.
Cross-Border Considerations
For our clients with international connections—whether U.S. citizens living abroad, foreign nationals with U.S. tax obligations, or families with assets in multiple countries—IRS notices take on added complexity. A notice regarding unreported foreign accounts triggers FBAR penalties under different rules than domestic income reporting. Similarly, notice procedures for GILTI, Subpart F, or Form 8938 reporting have specific technical requirements.
We recently worked with a client who received a CP75 audit notice involving Form 5472 reporting for a foreign-owned U.S. corporation. The notice came 18 months after filing. Without understanding the specific penalties available to the IRS for beneficial ownership reporting failures, the client would have simply agreed to additional tax. Instead, we identified reasonable cause defenses and negotiated a significant reduction.
How to Respond
Read the Entire Notice
Don’t panic at the letterhead. Read every page. The notice explains what the IRS is asking for, the deadline for response, and how to reply. The deadline is always listed.
Gather Supporting Documentation
If the IRS is asking about a specific item, collect your records: receipts, invoices, bank statements, prior correspondence. If you disagree with the IRS’s position, your documentation is your evidence.
Consider Your Options
You generally have three choices: agree, disagree, or request more time. If you received a CP2000, you might provide clarifying documentation that addresses the discrepancy without amending your return. If you received an audit notice, you might provide the requested records or information. If you received a notice of deficiency, you can request a hearing.
Meet Deadlines
The deadline listed in the notice is final. If it’s approaching and you don’t have answers, request an extension in writing rather than missing the deadline entirely. Missing deadlines can result in loss of appeal rights and automatic assessment of the IRS’s proposed adjustments.
Seek Professional Guidance
The complexity increases with the type of notice and your specific situation. Audit notices, deficiency notices, and collection notices warrant professional representation. We’ve seen taxpayers make concessions during audits that significantly increased their tax liability when different documentation or substantiation strategies would have been available.
When to Contact Us
You should reach out to Liou Law Corp if you receive:
- An audit notice or examination letter
- A notice of deficiency (90-day letter) or equivalent
- A collection notice before wage garnishment or asset levy
- A notice involving complex issues: business deductions, rental property, foreign accounts, multi-year adjustments, or significant dollar amounts
- A notice that references items you don’t understand or records you no longer have
- Correspondence in multiple languages (we provide bilingual guidance)
Even if you’re not certain whether a notice requires professional help, contact us for a brief consultation. Early intervention often prevents costly escalation.
The Bottom Line
IRS notices are not always cause for alarm, but they always require attention. Understanding what the IRS is asking, what your rights are, and what your options are—before you respond—can make the difference between a resolved discrepancy and an expensive dispute. We’re here to help you navigate that process with clarity and confidence.
Liou Law Corp provides tax and legal guidance to clients navigating complex U.S. tax compliance, audit procedures, and cross-border tax matters. If you’ve received an IRS notice and want professional guidance, contact us for a consultation.
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