THE DOCUMENTS THAT MATTER — AND THE ONES THAT DON’T
- Read before responding. The notice spells out exactly what the IRS wants, which tax year is under review,
and when a response is due. Missing any of those details makes the situation harder. - Narrow is stronger. Sending records the IRS didn’t ask for creates new lines of inquiry.
Address what was asked — nothing more. - Deadlines control options. Missing the response window lets the IRS move forward without input,
and appeal rights may be limited as a result. - Not all audits carry the same risk. A correspondence audit is manageable.
A field audit involving a business or significant proposed liability is a different situation entirely. - Representation changes the outcome. Having a dual CPA/JD attorney review records before they
reach the examiner consistently produces better results than going it alone.
An IRS audit notice can change the tone of a day fast. For most people, the first reaction is stress.
The second is uncertainty — why was the return flagged, how serious is this, and
what happens if the response makes things worse?
Those reactions are normal. But the biggest risk usually isn’t the notice itself.
It’s responding too quickly, sending too much, or contacting the IRS before theres a clear plan.
Getting audited doesn’t automatically mean anything was done wrong.
What an IRS audit attorney knows — and what most taxpayers don’t —
is that how the first 30 days are handled often determines whether the case
becomes a minor adjustment or a major financial problem.
WHAT TO DO FIRST AFTER AN IRS AUDIT NOTICE ARRIVES
Whether handling the matter alone or with representation, this sequence applies to every situation.
Before anything is mailed, uploaded, or said to the IRS, start here:
- Read every line of the notice
- Identify the response deadline
- Confirm exactly which items are under review
- Gather only the records that address those specific issues
- Respond on time
- Don’t volunteer information that wasn’t requested
That sequence holds whether the audit is conducted by mail, at an IRS office, or at a place of business.
The IRS publishes a full breakdown of how the audit process works and what to expect ateach stage.
WHAT AN IRS AUDIT NOTICE ACTUALLY MEANS
An IRS audit notice doesn’t automatically mean something was done wrong.
Many audits start because of a data mismatch, a flagged deduction, or a question about one specific line item.
There are three types of audits. The format determines what’s at stake.
Correspondence Audit
The most common type. The IRS sends a letter requesting records related to specific items on the
return. It can look minor, but a narrow issue widens quickly if the response isn't carefully scoped.
This is the format that catches the most taxpayers off guard.
Office Audit
This requires a meeting at an IRS office. The examiner can ask follow-up questions in real time,
which makes preparation critical. In many situations, a qualified representative can attend in place
of the taxpayer and keep the discussion focused on what’s in the notice.
Field Audit
The most serious type. An IRS agent comes to a home, business, or accountant’s office to review
records in person. Field audits make up less than 3% of all audits but tend to focus on high-income
returns and complex business situations. They can last for months and give the IRS broad
opportunity to identify issues beyond the original notice.
Phillip Mixon’s CPA/JD background covers all three audit formats — which matters when
determining the right response strategy from the start.
One rule applies across all three: the IRS doesn’t initiate an audit by phone. Legitimate notices
arrive by mail. Any call claiming otherwise is a scam.
THE DOCUMENTS THAT MATTER — AND THE ONES THAT DON’T
Once the notice is understood, the natural next step is gathering records. This is where many people accidentally make the situation worse.
Trying to appear cooperative, some taxpayers send everything they can find — bank records, extra explanations,
unrelated documents, items the IRS never requested. That backfires. A broader submission creates broader questions.
The strongest response isn’t the biggest one. It’s the most focused one.
Documents that are commonly relevant include:
- Bank statements for the period under review
- Receipts and invoices supporting claimed deductions
- W-2s, 1099s, and other income documentation
- Prior-year returns when multiple years are involved
- Contracts or legal records tied to a disputed transaction
Always send copies, never originals. Keep a record of everything submitted, including the date it was sent. Taxpayers have specific rights during an examination — the Taxpayer Bill of Rights outlines those protections in full.
DEADLINES, EXTENSIONS, AND HOW THE PROCESS ENDS
Deadlines do more than set a calendar. They determine how much control a taxpayer keeps.
If no response is submitted on time, the IRS can proceed with IRS collections enforcement — additional tax, interest, penalties, and in some cases levies or liens — with limited ability to contest the outcome afterward. Extensions are available in many cases, but they have to be requested before the original deadline expires.
After a response is submitted, the audit moves toward one of three outcomes:
No Change
The IRS accepts the return as filed. The case is closed with no additional liability.
Agreed Changes
The IRS proposes adjustments and the taxpayer accepts them. Additional tax, interest, and possibly penalties are assessed.
Disputed Findings
The taxpayer disagrees with the proposed changes and requests review through the IRS Office of Appeals. Many cases resolve at this stage — without reaching Tax Court. Mixon Tax Law has seen cases where an examiner initially demanded 00,000 in additional tax, ultimately settled at Appeals for 5,000.
An examiner’s finding isn’t the final word. Proposed changes based on incomplete records or missing context can be challenged.
WHAT NOT TO DO WHEN A NOTICE ARRIVES
Some mistakes make the situation significantly harder, almost immediately.
Don’t ignore the notice.
The IRS moves forward on its own timeline when there’s no response. Ignoring a notice doesn’t make the audit go away. It makes the outcome worse.
Don’t contact the IRS without a plan.
What gets said during an audit can shape the direction of the entire case. Preparation matters before any contact is made.
Don’t send more than requested.
Additional records create additional questions. Respond to exactly what was asked — nothing else.
Don’t assume the IRS is correct.
Proposed changes may be based on incomplete information. They can be disputed.
Don’t sign anything without understanding it.
Signing an agreement form closes the case on the IRS’s terms. Once signed, options narrow considerably.
The Taxpayer Advocate Service is an independent IRS organization that protects taxpayer rights and can assist when normal IRS processes aren’t resolving the issue.
WHEN AN AUDIT BECOMES A SERIOUS PROBLEM
Some audits stay narrow. Others escalate.
The risk increases when a business is involved, when multiple years are under review, when complex deductions are being challenged, or when the proposed liability is significant. At that point, what’s produced, what’s said, and what gets unnecessarily disclosed can all affect the final outcome.
Experienced tax attorney services change the process in concrete ways. Records are reviewed before they reach the examiner. Communication goes through counsel. The audit stays focused on what’s actually in the notice rather than expanding into new territory.
A dual CPA/JD attorney brings both accounting depth and legal strategy to the case. That combination matters most when a case is moving toward Appeals or Tax Court. Having someone who understands both the numbers and the law — from the first notice forward — consistently produces better results than bringing in representation after problems have already developed.
WHEN AN AUDIT BECOMES A SERIOUS PROBLEM
How long does an IRS audit take?
A correspondence audit may take several weeks to a few months after documents are submitted. Office audits typically run several months. Field audits involving businesses or complex returns can last a year or longer, particularly when the IRS identifies issues beyond the original notice.
What does an IRS audit notice look like?
It arrives by certified mail and includes the taxpayer’s name and address, the tax year under review, the specific items being questioned, a deadline to respond, and contact information for the assigned IRS office or examiner. Legitimate notices never arrive by phone or email.
Can a return be examined after three years?
Sometimes. The standard window is three years from the filing date, but the IRS can extend it to six years when there’s a substantial understatement of income. Fraud or failure to file removes the time limit entirely.
Is attendance required at an IRS office audit?
Not always. A qualified representative can often appear in place of the taxpayer. This typically produces a more controlled discussion and keeps the examination focused on the specific items in the notice rather than expanding into broader issues.
What is a 30-day letter from the IRS?
A 30-day letter is issued after the examination closes and outlines the IRS’s proposed changes. The taxpayer has 30 days to agree, dispute the findings, or request a conference through the IRS Office of Appeals before the case moves forward.
Can audit results be appealed?
Yes. Taxpayers who disagree with the examiner’s conclusions can request review through the IRS Office of Appeals. Many disputes are resolved at that stage. If Appeals doesn’t produce a satisfactory result, the case can proceed to Tax Court.
Does hiring a tax attorney make an audit more aggressive?
No. Taxpayers have a legal right to representation, and exercising it doesn’t affect how the IRS conducts the audit. Examiners are required to treat represented and unrepresented taxpayers the same way.
What happens if original records can’t be found?
Missing records don’t automatically mean losing the audit. Bank statements, credit card records, and third-party documents can often reconstruct what’s missing. The key is addressing the gap methodically and supporting the position wherever possible.
What if additional tax is owed at the end?
If the taxpayer agrees to the IRS’s proposed changes, additional tax, interest, and sometimes penalties are assessed. Payment plans are available in many cases. Disagreement with the proposed amount can be raised through the Appeals process before any payment is required.
Can an amended return trigger an audit?
It can. Amended returns are subject to review just like original returns. A significant change to reported income, a large deduction, or a claimed refund may invite closer examination — particularly if the change is substantial relative to the original filing.
FREQUENTLY ASKED QUESTIONS ABOUT IRS AUDITS
Mixon Tax Law handles audit cases from the first notice through final resolution. Both the accounting and legal sides are covered by a dual CPA/JD attorney with Big Four experience. Reach out to Mixon Tax Law Agency to discuss the situation and understand what the right response looks like.
How long does an IRS audit take?
A correspondence audit may take several weeks to a few months after documents are submitted. Office audits typically run several months. Field audits involving businesses or complex returns can last a year or longer, particularly when the IRS identifies issues beyond the original notice.
What does an IRS audit notice look like?
It arrives by certified mail and includes the taxpayer’s name and address, the tax year under review, the specific items being questioned, a deadline to respond, and contact information for the assigned IRS office or examiner. Legitimate notices never arrive by phone or email.
Can a return be examined after three years?
Sometimes. The standard window is three years from the filing date, but the IRS can extend it to six years when there’s a substantial understatement of income. Fraud or failure to file removes the time limit entirely.
Is attendance required at an IRS office audit?
Not always. A qualified representative can often appear in place of the taxpayer. This typically produces a more controlled discussion and keeps the examination focused on the specific items in the notice rather than expanding into broader issues.
What is a 30-day letter from the IRS?
A 30-day letter is issued after the examination closes and outlines the IRS’s proposed changes. The taxpayer has 30 days to agree, dispute the findings, or request a conference through the IRS Office of Appeals before the case moves forward.
Can audit results be appealed?
Yes. Taxpayers who disagree with the examiner’s conclusions can request review through the IRS Office of Appeals. Many disputes are resolved at that stage. If Appeals doesn’t produce a satisfactory result, the case can proceed to Tax Court.
Does hiring a tax attorney make an audit more aggressive?
No. Taxpayers have a legal right to representation, and exercising it doesn’t affect how the IRS conducts the audit. Examiners are required to treat represented and unrepresented taxpayers the same way.
What happens if original records can’t be found?
Missing records don’t automatically mean losing the audit. Bank statements, credit card records, and third-party documents can often reconstruct what’s missing. The key is addressing the gap methodically and supporting the position wherever possible.
What if additional tax is owed at the end?
If the taxpayer agrees to the IRS’s proposed changes, additional tax, interest, and sometimes penalties are assessed. Payment plans are available in many cases. Disagreement with the proposed amount can be raised through the Appeals process before any payment is required.
Can an amended return trigger an audit?
It can. Amended returns are subject to review just like original returns. A significant change to reported income, a large deduction, or a claimed refund may invite closer examination — particularly if the change is substantial relative to the original filing.
FACING AN IRS AUDIT IN HOUSTON?
Mixon Tax Law handles audit cases from the first notice through final resolution. Both the accounting and legal sides are covered by a dual CPA/JD attorney with Big Four experience. Reach out to Mixon Tax Law Agency to discuss the situation and understand what the right response looks like.