Your Audit, Your Type: Understanding Different Tax Examinations

What Is an Individual Tax Audit and Why Does It Happen?

An individual tax audit is an IRS review of your tax return to verify that your reported income, deductions, and credits are accurate. Here’s what you need to know:

• Purpose: The IRS conducts audits to ensure taxpayers report the correct amount of tax.
• Selection: Returns can be selected randomly, through computer screening, or due to related examinations.
• Types: There are three main types—mail audits (correspondence), office audits (at an IRS office), and field audits (at your home or business).
• Timeline: The IRS typically audits returns filed within the last three years but can go back six years for substantial errors.
• Not Always a Problem: Being audited doesn’t automatically mean you did something wrong.

Being audited isn’t a sign of guilt. The IRS uses statistical formulas, random sampling, and cross-checking with documents like W-2s and 1099s to flag returns. Sometimes, it’s just to verify a specific deduction.

If you receive an audit notice, respond promptly, gather your documents, and know your rights. You have the right to professional representation, to understand the IRS’s requests, and to appeal decisions you disagree with.

As Attorney Samuel Landis, I’ve spent over 15 years guiding clients through every type of *individual tax audit. My goal is to help you understand the process, protect your rights, and achieve the best possible outcome.*

Now that you understand what an individual tax audit is, let’s break down the three main types you might face.

Individual tax audit terms to learn:

• audit for claiming dependents
• what is a audit

The Three Main Types of IRS Audits

Not all audits are the same. The type of audit depends on the complexity of the issues and the amount of money involved. Knowing which audit you’re facing helps you prepare.

Most audits result from computer screening. The IRS’s software (like the Discriminant Inventory Function, or DIF system) flags returns with unusual items, such as charitable deductions that are high for your income level.

A few returns are chosen by random selection for the National Research Program. These audits help the IRS refine its systems and are purely statistical.

Finally, your return might be selected due to related examinations. If a business partner or spouse is audited, the IRS may review your return for connected transactions.

Here’s how the three main types of individual tax audit stack up:

Audit Type	Method	Scope	Location	Common Issues
Correspondence	Mail	Specific, limited issues	By mail	Missing forms, verifying deductions, income mismatches
Office	In-person meeting	Broader than mail, specific items	Local IRS office	Rental income/expenses, itemized deductions, small business income
Field	In-person meeting	Comprehensive, broad review	Taxpayer’s home or business	Complex business returns, high-net-worth individuals, foreign income

Correspondence (Mail) Audit

This is the most common and simplest individual tax audit. The IRS mails a letter (like a CP2000 notice) asking for information on a specific item, such as a missing 1099 or proof of a deduction.

Mail audits are narrow, focusing on one or two issues. Respond by the deadline with clear documentation. Send copies, not originals, and keep records of what you mail.

First, verify the letter is genuinely from the IRS to avoid scams. Check the IRS’s official guidance: How to confirm a letter’s legitimacy.

Most correspondence audits are resolved quickly if you provide the right paperwork. If you’re unsure how to respond, a tax professional can help you craft a clear reply.

Office Audit

For more complex issues, the IRS may schedule an office audit. You’ll meet a tax examiner at a local IRS office to review specific items on your return.

Office audits are broader than mail audits but still focus on specific areas like rental income, itemized deductions, or small business income. The examiner will dig deep into flagged items.

Bring supporting documents like bank statements and receipts. Crucially, you have the right to representation. A tax professional can attend with you or for you to protect your interests. Learn more here: More info about IRS Audit Representation.

Field Audit

A field audit is the most comprehensive and intensive individual tax audit. An IRS revenue agent conducts an in-depth review at your home, business, or representative’s office. These are reserved for complex cases like business owners or high-net-worth individuals.

The agent may examine multiple tax years and a wide range of documents, tour your business, and question your accounting. These audits can take a year or more to complete.

Due to their complexity, field audits almost always require professional representation. The stakes are high, and an experienced tax attorney can make a significant difference.

Understanding the Individual Tax Audit Process

Receiving an audit notice is stressful, but knowing the process helps you take control. The journey from notice to resolution has clear steps.

First, the IRS always initiates an audit by mail, never by phone. Calls demanding immediate payment are scams. Official notices come to your address on file.

Read the notice carefully. It specifies the tax years, the issues in question, and the response deadline. Responding by the deadline is crucial. Ignoring the notice allows the IRS to make changes without your input, leading to a higher tax bill, interest, and penalties.

If you need more time, you can request an extension. For mail audits, a written request often grants an automatic 30-day extension. For office or field audits, contact the auditor directly. The IRS is usually reasonable if you have a valid reason.

Next, gather your documents. Locate receipts, bank statements, and any records that support the items the IRS is questioning. Organization is key.

Ensure your documents match the IRS’s request. For example, provide charity receipts for donation questions or detailed records for business expenses. Keep everything organized by category and date.

Your Rights as a Taxpayer

During an individual tax audit, you have enforceable protections under the Taxpayer Bill of Rights. Knowing these rights is empowering.

Key rights include: the right to be informed about why the IRS needs information; the right to quality service; the right to privacy; and, most importantly, the right to retain representation. A tax professional can speak to the IRS on your behalf.

Finally, you have the right to appeal any decision you disagree with through the IRS appeals process or even Tax Court.

For the complete picture of your rights, see Publication 1, Your Rights as a Taxpayer. If you disagree with the IRS’s findings, we can help: What to do when you disagree with an IRS audit.

What Documentation Will the IRS Request?

The specific documents requested depend on the audit’s focus. Based on our experience with individual tax audits, here are the most common requests:

Proof of income: W-2s, 1099s, and K-1s. Self-employed individuals should prepare bank statements showing deposits, ledgers, and cash receipt records.

Receipts: Provide receipts for every claimed expense and deduction, such as business, medical, or charitable costs. The IRS needs proof of payment.

Bank statements and canceled checks: These help verify income and expenses, creating a paper trail for the IRS, especially for self-employed individuals.

Legal papers: For certain claims, you’ll need legal documents like a divorce decree for alimony or a loan agreement for mortgage interest.

Business records: Includes detailed accounting records, mileage logs for vehicle expenses, categorized expense reports, and asset depreciation schedules.

Proof of specific deductions and credits: For childcare expenses, provide receipts and the provider’s tax ID. For education credits, have tuition statements. For home improvement credits, keep invoices and certifications.

Critical advice: Always send photocopies, never your original documents. The IRS can lose paperwork. Keep your originals safe and organized.

Audit Triggers and Statute of Limitations

Understanding what triggers an IRS audit can help you file with confidence. Being selected doesn’t mean you did anything wrong; it often means your numbers or deductions stood out.

IRS computers flag returns that look unusual compared to others. High income is one factor, as complex returns for high earners get more scrutiny. But what you claim also matters.

Large deductions relative to your income, or consistent business losses, can trigger an audit. The IRS may want to verify disproportionate expenses or confirm you’re running a real business, not a hobby.

A very common trigger is unreported income. The IRS matches the income you report against the W-2s and 1099s it receives from payers. Any mismatch, even a small one, can prompt a notice.

Common myths: Getting a refund doesn’t make you audit-proof. Also, the IRS isn’t “out to get” you; its goal is to ensure compliance with tax law. Most audits are just for verification.

Common Triggers for an Individual Tax Audit

Certain items on your return are more likely to prompt an individual tax audit.

Mathematical errors are common and easily caught by IRS computers, potentially flagging your return.

If you’re claiming hobby losses, you must prove you’re trying to make a profit. Consistent losses may lead the IRS to reclassify the activity as a hobby and disallow your deductions.

High charitable contributions relative to your income can be a trigger. Donations are limited (e.g., cash to 60% of your adjusted gross income). The IRS will want documentation for unusually large donations.

The home office deduction has strict rules. The space must be used exclusively and regularly for business. While self-employed individuals have more flexibility, qualification can be tricky.

Rental real estate losses are also scrutinized. Deductions are limited by passive loss rules, income thresholds, and whether you qualify as a real estate professional.

For a deeper dive into what puts you at risk, see our guide: Are you at risk of an IRS audit and how far back can the IRS go?

The Statute of Limitations for an Individual Tax Audit

The IRS can’t audit you forever. The statute of limitations sets deadlines for how long the IRS has to examine your return, which can provide peace of mind.

The general 3-year rule gives the IRS three years from when you filed (or the due date, whichever is later) to start an individual tax audit. After that, the window generally closes.

An important exception is the 6-year rule for substantial understatement of income. If you omit more than 25% of your gross income, the IRS has six years to audit, not three.

For fraud or unfiled returns, there is no statute of limitations. The IRS can audit you at any time. Always file your returns, even if you can’t pay.

Filing an amended return (Form 1040-X) opens a new three-year window, but only for the items you changed, not the entire original return.

You can agree to extend the statute of limitations. This can give both you and the IRS more time to ensure a thorough and accurate review.

California taxpayers must notify the Franchise Tax Board (FTB) of any federal adjustments. Failure to do so can give the FTB an indefinite period to assess state tax.

Possible Outcomes and The Appeals Process

An individual tax audit ends with one of three outcomes: No Change, Agreed, or Disagreed. Understanding what happens next in each scenario, especially if you disagree, is crucial.

If You Agree with the Findings

If you and your tax professional agree with the IRS’s findings, perhaps due to a missed item or lack of documentation, here’s what to expect.

You’ll sign an examination report (like Form 870) to confirm you accept the proposed changes.

Next, you must pay the additional tax, plus interest and penalties. Interest accrues from the original tax due date. Penalties may be added for issues like negligence or substantial understatement of income.

If you can’t pay in full, the IRS offers payment plan options, like an Installment Agreement or an Offer in Compromise for those with financial hardship. Communicate with the IRS; don’t ignore the bill.

If You Disagree with the Findings

If you disagree with the IRS’s findings, such as a disallowed business expense, you have the right to challenge them through a clear process.

First, you can request an informal conference with the auditor’s manager. A fresh perspective can sometimes resolve the issue without further escalation.

If that fails, you can file a formal appeal with the IRS Independent Office of Appeals. This impartial body reviews disputed cases and has the authority to negotiate settlements based on the “hazards of litigation”—the chances of either side winning in court. For guidance, visit our page on More info about IRS Appeals.

If an agreement isn’t reached, you can petition the U.S. Tax Court. After receiving a “Statutory Notice of Deficiency” (a 90-day letter), you have a strict 90-day deadline (150 if abroad) to file a petition.

A key advantage of Tax Court is that you can dispute the tax without paying it first, which is a major benefit for large tax bills.

Experienced legal representation is vital during this process. We guide clients through individual tax audit appeals, protecting their rights and presenting clear arguments. If you’re unsure how to proceed, we can help: What to do when you disagree with an IRS audit.

Frequently Asked Questions about Individual Tax Audits

Facing an individual tax audit brings up many questions. Here are answers to some of the most common ones we hear at Segal, Cohen & Landis.

How long does a tax audit typically take?

The timeline for an individual tax audit depends on the audit type and its complexity.

• Mail audits are the quickest, often concluding within a few months if you respond promptly.
• Office audits take longer, typically several months, due to the in-person meeting and potential follow-up.
• Field audits are the most comprehensive and can easily last a year or more.

Being organized and responsive with your documentation can significantly speed up any audit.

Can I handle an IRS audit by myself?

While you have the right to represent yourself in an individual tax audit, it’s often not advisable. IRS auditors are trained experts in tax law. Without similar expertise, you might inadvertently harm your case or miss opportunities to present helpful evidence.

A tax professional changes the equation. They bring expert knowledge of tax law and audit procedures, ensuring your case is presented in the best possible light. A representative also acts as your communication buffer with the IRS, handling all correspondence and meetings to protect your rights and prevent missteps.

Finally, hiring a professional significantly reduces the stress factor, allowing you to focus on your life instead of the audit.

At Segal, Cohen & Landis, our 33 years of experience show that professional representation often leads to a more favorable outcome. You don’t have to face this alone.

Does filing an amended return increase my audit risk?

This is a common concern, as taxpayers worry about inviting IRS scrutiny.

The truth is, filing an amended return does not increase the audit risk for your original return. The selection process for the original return is independent of any later amendments.

However, the amended return itself can be selected for examination, especially if it involves significant changes or a large refund.

Don’t let this fear stop you from correcting an error. It’s better to file an accurate amended return proactively. Ensure it’s well-supported by documentation. The best approach is to file accurately from the start. If you must amend, do it correctly and be prepared to back up your changes. A tax professional can provide guidance.

Conclusion

An individual tax audit can be stressful, but it doesn’t have to be a nightmare. By understanding the types of audits, your rights, and common triggers, you’re already in a stronger position.

An audit is usually just a verification process, not a personal attack. Whether it’s triggered by a computer, random selection, or a specific question, the key is to stay organized, respond promptly, and never ignore IRS correspondence.

Your taxpayer rights are fundamental protections. You have the right to be informed, to professional treatment, to representation, and to appeal decisions.

Our experience shows that you shouldn’t face the IRS alone. The IRS has its experts; you should have one too.

Segal, Cohen & Landis has protected Los Angeles taxpayers for over 33 years. With more than 25,000 clients served, we know how to steer audits, appeals, and other tax controversies. We communicate effectively with the IRS to protect your rights and work toward the best resolution, from proving your case to negotiating settlements or payment plans.

Our approach combines technical expertise with genuine care. We understand the person behind the tax return and take the time to explain the process in plain English, handling the heavy lifting so you can focus on your life.

If you’ve received an audit notice, or if you’re concerned about your tax situation, we’re here to help.

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