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An IRS tax audit is a review of a taxpayer's return and supporting records to determine whether income, deductions, credits, and other tax information were reported correctly. Learn why the IRS audits tax returns, the difference between correspondence, office, and field audits, what documents taxpayers may need to provide, what happens when the IRS proposes additional tax, and how to challenge an audit decision. Find out about taxpayer rights, IRS Appeals, audit reconsideration, Tax Court deadlines, and when a tax attorney, CPA, or enrolled agent may help.
Receiving a letter from the Internal Revenue Service can be stressful, especially when the letter says that your tax return has been selected for an examination. Many taxpayers immediately assume that an IRS tax audit means they did something wrong or that they are about to face serious legal trouble. In reality, an audit is generally a review of a tax return and its supporting information to determine whether the income, deductions, credits, and other items reported are accurate.
The IRS generally accepts most federal tax returns as filed, but it examines some returns for a variety of compliance reasons. An examination can ultimately result in no change to the taxpayer's return. The IRS has also established a Taxpayer Bill of Rights that gives taxpayers protections when dealing with the agency, including rights to challenge IRS positions, appeal certain decisions, receive clear information, and retain authorized representation.
An audit can still have important financial consequences. If the IRS determines that additional tax is due, the taxpayer may also owe applicable penalties and interest. Depending on the circumstances, a taxpayer may be able to disagree with the proposed adjustment, provide additional documentation, request an administrative appeal, seek audit reconsideration in qualifying situations, or bring a case to court.
Understanding the process can make an IRS audit much less intimidating. This guide explains what an IRS tax audit is, why returns may be examined, what types of audits exist, what documents the IRS may request, what rights taxpayers have, and what options may be available when they disagree with the IRS.
An IRS tax audit, formally called an examination, is a review of a taxpayer's return and supporting information to determine whether the return accurately reports the taxpayer's tax liability.
The IRS may examine income, deductions, credits, business expenses, filing status, or other tax matters. The scope of an examination can vary significantly. Some audits focus on one particular item, while others can involve multiple issues and more extensive financial records.
An examination does not automatically mean the IRS has determined that a taxpayer was dishonest or intentionally violated tax law. IRS guidance explains that returns may be selected through computerized screening, random selection, or information-document matching, among other methods.
A taxpayer therefore should not treat an audit notice as a final finding that money is owed. It is part of a process in which the IRS reviews the return and determines whether changes are necessary.
The examination may end with the return being accepted as filed, with proposed changes that the taxpayer agrees to, or with proposed changes that the taxpayer disputes.
There is no single reason why the IRS selects a particular tax return for examination. The agency uses different compliance and screening methods to identify returns or issues that may warrant review.
One reason can be a mismatch between information reported by the taxpayer and information the IRS receives from third parties. Employers, banks, brokerage firms, payment processors, and other organizations may send information returns to the IRS. If the information reported by a third party does not correspond with what appears on the taxpayer's return, the discrepancy may require attention.
The IRS also uses computerized screening and other compliance programs. IRS Publication 556 explains that computerized scoring, random sampling, and information-document matching can play a role in examination selection.
Related tax returns or transactions can also become relevant. For example, information from one taxpayer's return may affect the examination of another taxpayer or related entity.
Certain returns may also require more documentation simply because of their complexity. Business activities, investment transactions, substantial deductions, international tax matters, and other specialized situations can create more items for the IRS to verify.
Importantly, selection for examination does not establish that the taxpayer intentionally made a mistake. The purpose of the examination is to determine whether the reported information is accurate under the applicable tax rules.
The IRS generally conducts examinations through different formats depending on the issues involved and the amount or complexity of information that needs to be reviewed.
A correspondence examination is generally conducted through written communications. The IRS sends a notice explaining the issue being examined and identifies documents or information the taxpayer should provide.
For example, the IRS might ask for documentation supporting a charitable contribution, education credit, business expense, income item, or another deduction or credit.
Correspondence audits may be less complicated than in-person examinations, but taxpayers should still take them seriously. Ignoring the correspondence can result in the IRS making changes without receiving information that could support the taxpayer's position.
The IRS also has an audit reconsideration process for certain situations involving correspondence examinations and unpaid audit assessments. It can provide an opportunity to submit new information that was not previously considered.
An office examination generally involves meeting with an IRS representative at an IRS office.
The IRS will normally provide information about the issues being examined and the records the taxpayer should bring. Depending on the circumstances, the taxpayer may need to answer questions and provide supporting documentation concerning specific items on the return.
A field examination is generally used for more complex examinations and may involve an IRS revenue agent reviewing records at a taxpayer's business, residence, or another appropriate location.
Field examinations can involve extensive records and may take more time than a simple correspondence examination. Businesses, self-employed individuals, and taxpayers with complicated financial situations may encounter this type of examination.
The exact scope of a field examination depends on the taxpayer's circumstances and the issues identified by the IRS.
No. Taxpayers can receive many different types of IRS notices, and not every notice represents a traditional audit or examination.
For example, the IRS may contact a taxpayer because information reported by a third party does not match the information on the tax return. A CP2000 notice is commonly associated with the IRS's automated underreporter process and proposed changes based on information mismatches. It should not automatically be treated as identical to a traditional examination.
Other notices have different legal consequences and deadlines. A statutory notice of deficiency, for example, is an important notice that generally gives a taxpayer the right to petition the U.S. Tax Court within a specific period.
This is why taxpayers should read the notice carefully rather than assuming every IRS letter means the same thing.
The notice should identify the tax year, issue, amount involved if applicable, response instructions, and deadline. If the taxpayer does not understand what type of notice was received, obtaining professional tax advice can help clarify the available options.
The first and most important step is not to ignore the notice.
Read the entire document carefully. Identify the tax year involved, the issues being examined, the records requested, the response deadline, and the contact information provided by the IRS.
Keep the original notice and make copies for your records.
Next, gather the tax return involved and the supporting documents relevant to the issues under examination. Depending on the audit, these records might include:
The goal is not necessarily to send the IRS every financial document you have ever possessed. Instead, taxpayers should understand what the IRS has requested and provide relevant documentation in accordance with the instructions in the notice.
If a tax professional prepared the return, contacting that professional promptly may be useful. For a complicated audit, a taxpayer may also consider consulting an attorney, CPA, or enrolled agent who handles IRS examinations.
The records requested during an audit depend on the issues being examined.
If the IRS questions a charitable deduction, it may request documentation showing the contribution and records required by the applicable tax rules.
If business expenses are being examined, the IRS may request receipts, invoices, bank statements, accounting records, mileage documentation, or other evidence supporting the expenses.
For investment transactions, records showing the purchase price, sale proceeds, dates, and tax basis may become important.
The taxpayer generally needs to substantiate the items reported on the return that are being examined. A taxpayer's explanation may not be sufficient when the tax law requires documentation to establish a deduction, credit, income item, or other tax position.
Taxpayers should also keep copies of everything they provide to the IRS. If documents are submitted electronically, keeping confirmation of the submission can be useful. If documents are mailed, taxpayers should retain proof of mailing and delivery when appropriate.
At the same time, taxpayers have rights concerning IRS inquiries. The Taxpayer Bill of Rights includes a right to privacy, meaning taxpayers can expect IRS inquiries and examinations to comply with the law and be no more intrusive than necessary.
Although every examination is different, an IRS audit often follows a general sequence.
First, the IRS contacts the taxpayer and identifies the return or issue being examined. The notice generally explains what information the IRS needs and how the taxpayer should respond.
The taxpayer then provides the requested records and explanations. The examiner reviews those materials and may ask additional questions.
An examination may involve several communications. The IRS may request clarification, additional records, or explanations concerning information discovered during the review.
Taxpayers should maintain an organized audit file containing the IRS notices, tax returns, supporting records, correspondence, submitted documents, and notes about important conversations.
Eventually, the examiner reaches a conclusion regarding the issues reviewed.
An examination generally can result in one of three broad outcomes:
IRS Publication 556 explains the examination process and appeal rights when taxpayers disagree with proposed changes.
A statutory notice of deficiency is an important IRS notice that can arise when the IRS proposes an increase in tax and the taxpayer receives a formal statutory right to challenge the proposed deficiency in the U.S. Tax Court.
It is commonly called a 90-day letter because federal law generally gives the taxpayer 90 days from the date the notice is mailed to file a petition with the Tax Court.
For a notice addressed to a person outside the United States, the period is generally 150 days.
This deadline is extremely important. A taxpayer should not assume that contacting the IRS, sending additional documents, or continuing discussions with an examiner automatically extends the Tax Court filing period.
A taxpayer who receives a notice of deficiency should carefully review the notice and consider obtaining professional advice promptly if the proposed deficiency is disputed.
The IRS generally has a statutory period during which it can assess additional tax, but the applicable period depends on the circumstances.
The general federal rule under Internal Revenue Code §6501 is that tax generally must be assessed within three years after the return is filed. Certain circumstances can extend the period, including certain substantial omissions of gross income. There are also circumstances in which the normal limitation period does not apply, including certain fraudulent returns or situations involving failure to file a return.
These rules contain exceptions and special provisions. Taxpayers therefore should not assume that every return older than three years is automatically beyond IRS examination or assessment.
The particular facts can matter, including whether a return was filed, whether an extension was involved, whether certain information was omitted, and whether special statutory rules apply.
When an older tax year is involved, a tax professional can help determine which limitation period applies rather than relying on the general three-year rule.
Taxpayers have significant legal protections when dealing with the IRS. These rights are summarized in the federal Taxpayer Bill of Rights.
The IRS identifies ten fundamental categories of taxpayer rights:
Taxpayers have the right to clear explanations of the tax laws and IRS procedures relevant to their obligations and the IRS's decisions.
Taxpayers have the right to receive prompt, courteous, and professional assistance and understandable communications from the IRS.
Taxpayers have the right to pay only the amount of tax legally due, including applicable interest and penalties.
Taxpayers can raise objections, provide documentation, and expect timely objections to be considered fairly.
Taxpayers generally have the right to an impartial administrative appeal of most IRS decisions and may have the right to take their case to court.
Taxpayers have the right to know the applicable time limits for IRS actions and taxpayer challenges and to know when an examination has concluded.
IRS inquiries and enforcement actions should comply with the law and be no more intrusive than necessary.
Taxpayers can expect their tax information to remain confidential except where disclosure is authorized by law or by the taxpayer.
Taxpayers generally may retain an authorized representative, such as an attorney, CPA, or enrolled agent, to assist with IRS matters.
The IRS recognizes taxpayers' right to expect the tax system to consider facts and circumstances that may affect their liability, ability to pay, or ability to provide information.
The Taxpayer Bill of Rights is not simply a general statement of courtesy. It is an important framework for understanding the protections available to taxpayers when dealing with the IRS.
Yes. Taxpayers generally have the right to retain an authorized representative to handle eligible matters with the IRS.
Depending on the circumstances, representation may be provided by an attorney, certified public accountant, enrolled agent, or another practitioner authorized under federal tax rules.
The IRS recognizes the right to retain representation as one of the ten fundamental taxpayer rights.
A taxpayer who wants someone else to represent them generally needs to provide appropriate authorization. Form 2848, Power of Attorney and Declaration of Representative, is commonly used for this purpose.
Representation can be particularly useful when an audit involves substantial amounts of money, complicated tax issues, business records, possible penalties, multiple tax years, or a disagreement about how the law applies.
It can also be helpful when the taxpayer finds direct communication with the IRS difficult or does not feel comfortable explaining complicated financial circumstances independently.
Not every audit requires an attorney.
Some taxpayers can handle a straightforward correspondence examination themselves, particularly when the issue is simple and the requested documentation is readily available.
Professional assistance may become more important when the audit involves significant amounts of money, complicated legal questions, business or international tax issues, potential fraud allegations, substantial penalties, multiple years, or a dispute that may proceed to Appeals or Tax Court.
A tax attorney can be particularly relevant when the matter involves legal interpretation, privilege concerns, potential litigation, or allegations that could have consequences beyond an ordinary tax adjustment.
A CPA or enrolled agent may also be appropriate for many examination matters. The appropriate professional depends on the nature of the dispute and the type of assistance the taxpayer needs.
Audit reconsideration is an IRS process that can allow certain taxpayers to ask the agency to reevaluate an audit assessment.
According to current IRS guidance, audit reconsideration may be available when a taxpayer disagrees with audit findings, did not appear for the original audit, did not receive correspondence because they moved, has new information that was not previously considered, or believes the IRS made a processing or computational error.
The process generally focuses on information that was not previously considered.
For example, a taxpayer who failed to respond to an earlier correspondence audit may have additional receipts, bank statements, or other records that support the original tax return.
The IRS states that audit reconsideration generally applies when the assessed tax liability remains unpaid. If the tax has already been paid, other procedures may apply, such as filing a claim for refund.
Because eligibility and procedural requirements matter, taxpayers should review the current IRS instructions before relying on audit reconsideration.
Disagreeing with the IRS about whether tax is owed is different from being unable to pay a tax liability that has already been established.
If the taxpayer agrees that tax is legally due but cannot pay the full balance immediately, separate IRS collection options may be available depending on the circumstances.
These can include installment arrangements and other collection alternatives.
The collection process is separate from the examination process. A taxpayer should not confuse an audit dispute with a payment problem.
If the taxpayer disputes the amount of tax, the focus should generally be on the dispute and available appeal rights. If the amount is accepted or becomes final but the taxpayer cannot pay it, collection options may become the relevant issue.
The Taxpayer Advocate Service, or TAS, is an independent organization within the IRS that helps taxpayers resolve certain problems with the IRS.
The IRS identifies the Taxpayer Advocate Service as a resource for taxpayers who are experiencing financial difficulty or whose tax issues have not been resolved properly or timely through normal IRS channels.
TAS is not a replacement for ordinary audit procedures. Taxpayers should generally attempt to resolve routine matters through normal IRS channels first.
However, when an IRS problem creates significant hardship or remains unresolved despite appropriate efforts, TAS may be a resource worth considering.
Some taxpayers may also qualify for help from a Low Income Taxpayer Clinic, or LITC.
The IRS recognizes LITCs as a resource for qualifying taxpayers who may need assistance with disputes involving the IRS. Depending on eligibility and funding, a clinic may provide representation, education, or other assistance.
Eligibility rules apply, so taxpayers should review current IRS information rather than assuming they qualify based solely on income.
LITCs can be particularly useful for taxpayers who need assistance but cannot afford ordinary private representation.
An audit can become more difficult when a taxpayer responds without understanding the notice or the issues being examined.
One common mistake is ignoring the IRS notice. Deadlines can affect appeal rights and other legal options, so putting the letter aside can create unnecessary problems.
Another mistake is submitting incomplete or disorganized records. If the IRS asks for documentation supporting a particular deduction, providing unrelated documents may not address the actual issue.
Taxpayers should also avoid destroying or altering records. Original financial records should be preserved, and copies should be submitted when appropriate.
Another problem is guessing. If a taxpayer does not know the answer to a question, it is generally better to review the records and provide an accurate response than to make an unsupported statement.
Taxpayers should also avoid assuming that a disagreement with an examiner is resolved simply because they verbally explained their position. Important disputes should be documented in writing when appropriate.
Finally, taxpayers should be careful about missing formal appeal or Tax Court deadlines. Some tax deadlines are statutory and may not be extended simply because a taxpayer is negotiating with the IRS.
Preparation begins with understanding the scope of the examination.
Start by reviewing the audit notice and identifying exactly which tax year and issues are involved. Then locate the return that was filed for that year and organize the supporting records relevant to those issues.
Create a simple audit file containing:
It can also help to create a timeline of the relevant events. For example, if the audit concerns the purchase or sale of property, organize the purchase documents, closing records, improvements, sale documents, and related tax reporting.
If a professional prepared the return, ask that person to review the audit notice and explain what is being examined.
The more organized the taxpayer is, the easier it may be to identify the actual dispute rather than reacting generally to the fact that an audit is taking place.
If the audit involves an office or field examination, preparation is particularly important.
Bring the documents requested in the IRS notice and organize them so that individual items can be located quickly.
Answer questions accurately and directly. Avoid volunteering unrelated information that has nothing to do with the issues under examination unless there is a reason it is relevant.
If you do not understand a question, ask the examiner to clarify it.
If you need time to locate a document or verify information, do not feel compelled to guess simply because you are in a meeting.
A taxpayer who has authorized representation may also have the representative participate in the examination, depending on the circumstances and applicable IRS procedures.
For complicated examinations, professional representation can help ensure that factual explanations and legal arguments are presented clearly.
No.
An IRS audit and a finding of tax fraud are not the same thing.
An examination is a review of a tax return and related information. The IRS may identify an error, determine that additional tax is due, accept the return without change, or reach another conclusion based on the facts and applicable law.
Fraud involves additional legal requirements and is not established merely because the IRS examines a return or proposes an adjustment.
Taxpayers should therefore avoid assuming that an audit notice means the IRS has accused them of criminal conduct.
At the same time, taxpayers should take examinations seriously, especially when the IRS raises questions about intentional conduct, false statements, substantial unreported income, or other potentially serious issues. In such circumstances, obtaining qualified legal advice before making substantive statements can be important.
An IRS audit concerns federal tax administration. A state tax audit is a separate matter governed by the tax laws and procedures of the relevant state.
A taxpayer could potentially face a federal examination and a state tax examination involving related information, but the two processes are not identical.
State tax agencies may have their own:
Therefore, a taxpayer should not assume that an IRS rule automatically applies to a state tax audit.
If a tax issue involves both federal and state taxes, professional advice may be useful to understand how the proceedings interact.
There is no universal length for an IRS audit.
A straightforward correspondence examination may be resolved after a taxpayer provides the requested documents. A complicated office or field examination can take considerably longer.
The length can depend on:
Taxpayers should therefore be cautious about promises that an audit will always be completed within a particular number of days or months.
The IRS's authority to assess tax is also subject to statutory limitation periods, although those rules are separate from the practical length of an examination.
Yes, many IRS examination decisions can be challenged through administrative appeal procedures.
The exact appeal route depends on the type of determination, the amount involved, the taxpayer's circumstances, and the notice received.
The IRS provides formal procedures for taxpayers who disagree with examination findings. Publication 5 and Publication 556 explain important aspects of these rights.
A taxpayer may need to submit a written protest or other documentation explaining the disputed issues.
Appeals may resolve a case without litigation, but taxpayers should not assume that every case has the same appeal process.
If the matter reaches the point where a statutory notice of deficiency is issued, the Tax Court filing deadline becomes particularly important.
The outcome depends on what the IRS determines and whether the taxpayer agrees.
If there is no change, the examination can close without additional tax.
If the taxpayer agrees with the proposed changes, the taxpayer can follow the IRS instructions for agreeing to the adjustments and paying any resulting balance.
If the taxpayer disagrees, available administrative and judicial options may depend on the stage of the case and the type of notice issued.
If additional tax becomes legally due and remains unpaid, the matter may eventually move into the IRS collection process.
This distinction is important because audit and collection are different stages. An audit determines whether the tax return should be adjusted. Collection concerns how the government obtains payment of a tax liability that is already established.
There is no guaranteed way to prevent an IRS examination, but good recordkeeping can make a tax review easier to manage.
Keep records supporting income, deductions, credits, and other significant tax positions.
Maintain copies of tax returns and supporting documentation for the periods required under applicable tax rules.
For businesses, maintain organized accounting records and separate business and personal transactions where appropriate.
For property and investments, preserve documents that establish acquisition costs, improvements, sales, and other information that may affect tax basis.
If a tax position is unusually complex, consider obtaining professional advice before filing rather than waiting until an audit begins.
Accurate reporting and good records cannot guarantee that a return will never be examined, but they can make it easier to respond if the IRS asks questions.
A taxpayer does not necessarily need professional representation for every audit.
However, professional advice may be worth considering when:
An attorney, CPA, or enrolled agent can have different areas of expertise, so taxpayers should consider the nature of the dispute when choosing professional help.
For a simple documentation issue, a tax preparer or accountant may be sufficient. For a dispute involving legal interpretation or possible litigation, an attorney with relevant tax experience may be more appropriate.
If you decide to consult a tax professional about an audit, bring the IRS notice and the tax return involved.
Also gather relevant supporting records, including documents requested by the IRS and any evidence supporting your position.
Useful materials can include:
Do not assume that the professional can obtain every document independently. The quality of the review may depend on the records you provide.
The IRS can make errors, and taxpayers have procedures for challenging incorrect IRS positions.
A taxpayer who believes the IRS misunderstood a document, overlooked evidence, applied the wrong rule, or made a computational or processing error should identify the specific mistake and provide supporting information.
The IRS recognizes taxpayers' right to challenge its position and have timely objections and supporting documentation considered.
For certain audit assessments, audit reconsideration may provide another opportunity to submit information that was not previously considered.
If the dispute remains unresolved, administrative appeal or judicial options may be available depending on the circumstances.
The key is to respond through the procedure applicable to the notice rather than assuming that an informal phone conversation will resolve the legal issue.
An IRS tax audit is a review of a tax return and related information to determine whether the taxpayer correctly reported income, deductions, credits, and other tax items. Although receiving an audit notice can be stressful, an examination does not automatically mean that the taxpayer committed wrongdoing or will owe additional tax.
The IRS may select returns for examination through various compliance and screening methods, including computerized processes, information matching, and other selection procedures. Audits can take place through correspondence, office examinations, or field examinations, depending on the issues involved.
If you receive an audit notice, review it carefully, identify the response deadline, gather relevant records, and keep copies of everything you submit. If the IRS proposes additional tax, you generally have opportunities to provide documentation and challenge the agency's position. Depending on the circumstances, administrative Appeals, audit reconsideration, or judicial review may be available.
Taxpayers also have important protections under the Taxpayer Bill of Rights, including the right to be informed, challenge IRS positions, appeal certain decisions, maintain privacy and confidentiality, retain authorized representation, and pay no more than the amount legally due.
Because federal tax procedures can involve strict deadlines and complicated rules, professional assistance may be appropriate when an audit involves substantial amounts, complicated transactions, multiple tax years, serious penalties, or potential litigation.
Most importantly, do not ignore an IRS notice. Understanding what the IRS is asking, responding within the applicable deadline, preserving supporting records, and knowing your available rights can help you navigate the examination process more effectively.
This article provides general legal and tax information for educational purposes and is not a substitute for advice from a qualified tax professional or attorney. Federal tax rules and IRS procedures can change, and individual circumstances may affect the rights and deadlines that apply.
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