The number on a tax return is rarely the whole criminal case. Federal investigators also look at the story behind it: what records existed, what advice was given, and whether the taxpayer acted like someone who knew a duty and chose to hide the truth.
That is why owing money to the IRS is not the same as committing tax fraud. A criminal case requires proof of a specific offense and the mental state that goes with it, not simply a large tax bill or an accounting error.
Keith & Lorfing represents people facing federal investigations and federal criminal charges in West Texas. If IRS-CI agents, federal prosecutors, or another agency are examining your tax returns, financial records, business activity, or alleged false statements, speak with a federal investigations defense lawyer before giving an interview or producing records without legal review.
Federal criminal tax charges are not all the same
“Tax fraud” is an informal label, not one federal offense. Prosecutors select charges based on the taxpayer’s duty, the alleged act, the document involved, and what the evidence says about intent.
The most common statutes include:
| Statute | What the government generally must prove | Classification | Maximum prison term |
|---|---|---|---|
| 26 U.S.C. § 7201 | Willfulness, a tax due and owing, and an affirmative attempt to evade assessment or payment | Felony | 5 years |
| 26 U.S.C. § 7202 | A duty to collect, account for, or pay over tax; a failure to do so; and willfulness | Felony | 5 years |
| 26 U.S.C. § 7203 | A legal duty to file, pay, keep records, or supply information; a failure to do so; and willfulness | Usually a misdemeanor | 1 year |
| 26 U.S.C. § 7206(1) | A return or other covered document signed under penalty of perjury, a material statement the signer did not believe was true, and willfulness | Felony | 3 years |
| 26 U.S.C. § 7206(2) | Willfully helping prepare or present a tax document that was false or fraudulent as to a material matter | Felony | 3 years |
| 18 U.S.C. § 371 | An agreement to commit a federal offense or defraud the United States, knowing participation, and an overt act to advance the agreement | Felony in most tax cases | 5 years |
The current text of the federal criminal tax statutes also provides fines and costs of prosecution. General federal fine provisions may affect the available maximum, so a statute’s older dollar amount should not be treated as the whole financial exposure.
Section 7203 has a narrow felony rule for certain willful violations of the cash-transaction reporting law in § 6050I. The table describes the usual failure-to-file or failure-to-pay charge.
Tax evasion requires an affirmative act
Section 7201 is not proved by showing only that a person failed to file or pay. The government must identify an affirmative act intended to evade the assessment or payment of tax.
That alleged act may involve concealment, misleading records, nominee ownership, false statements, or moving assets to frustrate collection. The act, the tax due, and willfulness are separate issues, and the government must prove each beyond a reasonable doubt.
A false-return charge does not require a tax deficiency
Sections 7206(1) and 7206(2) focus on materially false tax documents. Unlike § 7201 evasion, the government does not have to prove an additional tax due and owing to establish every false-return offense.
That difference can surprise people who focus only on the final tax calculation. A statement can be material because it could influence the IRS’s work even if the government cannot prove a tax loss.
Payroll tax cases involve a different duty
Section 7202 concerns taxes a responsible person was required to collect, account for, and pay over, such as payroll withholding. The criminal question is not answered merely by showing that a company fell behind on taxes.
The person’s actual authority, knowledge, financial decisions, and control over payment can matter. Civil trust-fund assessments may also proceed under different rules from the criminal case.
A conspiracy requires more than an agreement
Prosecutors use 18 U.S.C. § 371 for conspiracies to commit a federal tax offense and conspiracies to obstruct the IRS’s lawful functions, often called Klein conspiracies. The government does not need to prove that the planned tax crime was completed, but it must prove an overt act taken to advance the agreement.
The Title 26 offenses in the table expressly require willfulness. A § 371 charge has its own intent, agreement, participation, and overt-act requirements, so it should not be collapsed into the same elements.
Willfulness is the center of a criminal tax case
For the principal Title 26 crimes, willfulness means a voluntary, intentional violation of a known legal duty. It separates criminal conduct from negligence, confusion, poor bookkeeping, and an honest dispute over a difficult tax rule.
The government rarely has a message that says, “I know this is illegal.” It usually tries to prove willfulness through circumstances surrounding the return, payment, or records.
Evidence prosecutors may rely on includes:
- Prior IRS notices: Earlier audits, collection letters, and direct explanations of the same duty.
- Repeated conduct: Similar omissions or false entries across several years.
- Concealment: Undisclosed accounts, nominee ownership, false invoices, or records kept outside the normal system.
- Conflicting records: One set of figures for the IRS and another for lenders, partners, or internal use.
- Instructions to others: Messages directing an employee, bookkeeper, or preparer to leave something out.
- False explanations: Statements that conflict with bank records, emails, or previously filed documents.
- Record destruction: Deleting or altering material after an audit, subpoena, or investigation becomes known.
These facts are not automatic proof of guilt. The same record may support a different explanation once the work process, professional advice, source documents, and full timeline are examined.
Good-faith misunderstanding under Cheek
In Cheek v. United States, the Supreme Court held that a genuine good-faith misunderstanding of federal tax law can negate willfulness. The belief does not become irrelevant merely because a jury considers it unreasonable.
There is an important limit. A person who understood the legal duty but believed the tax law was unconstitutional or should not apply cannot use that disagreement to disprove willfulness.
Reliance on an accountant is evidence, not immunity
Following professional advice may undercut willfulness when the taxpayer made a full disclosure, received advice on the relevant issue, and actually relied on it in good faith. Merely having an accountant prepare or file the return does not transfer responsibility for information the taxpayer withheld or knew was false.
The defense should preserve engagement letters, organizer answers, emails, drafts, source documents, and records showing what the professional was told. Those details are more useful than the broad statement, “My accountant handled everything.”
How IRS criminal investigations begin
Criminal tax cases do not nearly always begin with a civil audit. The IRS explains that Criminal Investigation receives information from auditors, collection officers, investigative analysts, members of the public, other law-enforcement agencies, U.S. Attorney’s Offices, whistleblowers, and other sources.
A civil examination is one possible route. When a compliance employee develops firm indications of fraud and the case meets criminal criteria, IRS procedures provide for a referral to Criminal Investigation.
What a stalled civil audit may mean
IRS procedures can require civil examination or collection activity to be suspended while a criminal referral is considered or investigated. A revenue agent who stops requesting documents may therefore deserve careful attention.
Silence alone does not prove that a criminal case exists. Personnel changes, workload, issue development, and ordinary delay can also interrupt an audit, so the surrounding facts matter.
Clearer signs that the matter is criminal
Some events reveal more than a slow audit:
- An IRS-CI special agent makes contact: The Criminal Investigation division investigates possible tax crimes and related financial crimes.
- Agents request a voluntary interview: Questions may cover returns, money movement, preparers, records, and the person’s knowledge.
- A grand jury subpoena arrives: The demand may seek bank, business, accounting, email, or device records.
- A search warrant is executed: Agents may seize computers, phones, files, and financial evidence.
- Third parties are interviewed: Employees, bookkeepers, customers, partners, and return preparers may be approached first.
- A target letter is issued: A federal prosecutor may advise that the recipient is a target of a grand jury investigation.
There is no rule that IRS special agents must arrive in pairs, and two visitors do not establish a formal case stage. The agents’ identity, agency, questions, and process being used are more important than their number.
What investigators examine
Tax investigations are document-heavy, but they are not decided by the filed return alone. Investigators often reconstruct income, compare records, and test whether the taxpayer’s explanation matches conduct over time.
Important evidence may include:
- Tax filings: Original returns, amended returns, information returns, extensions, and electronic filing records.
- Accounting data: General ledgers, bookkeeping files, audit histories, invoices, payroll records, and cash logs.
- Financial records: Bank deposits, transfers, credit-card activity, brokerage records, loan applications, and asset purchases.
- Communications: Emails, messages, instructions to staff, and discussions with tax professionals.
- Business operations: Point-of-sale data, customer records, vendor payments, contracts, and ownership documents.
- IRS history: Audit responses, collection communications, prior penalties, and explanations of filing duties.
- Electronic evidence: File metadata, login activity, cloud storage, deleted data, and device records.
- Professional advice: What the lawyer, accountant, or preparer knew before giving advice and how the taxpayer responded.
The method used to calculate income or tax loss matters too. The defense may need to test whether deposits included loans, transfers, gifts, repayments, or other nontaxable amounts and whether the government credited legitimate expenses.
What to do when IRS-CI or federal agents make contact
An unexpected visit creates pressure to explain everything immediately. That instinct can turn an unclear tax issue into a fixed statement that agents later compare line by line with records they already possess.
- Identify the agents and agency: Ask for names, credentials, contact information, and the nature of the request.
- Do not lie: A materially false statement in a federal matter can create separate exposure under 18 U.S.C. § 1001.
- Do not consent impulsively: A request for an interview, device search, or documents may be voluntary even when it feels compulsory.
- Preserve records: Stop routine deletion and keep tax, accounting, banking, email, message, and device evidence.
- Do not alter the books: Backdating, rewriting descriptions, or replacing records may create obstruction evidence.
- Do not coordinate accounts: Avoid contacting employees, partners, preparers, or customers to decide what everyone should say.
- Do not file a rushed amended return: A new signed document can affect the evidence and does not erase earlier conduct.
- Speak with independent defense counsel: Counsel can determine the person’s status, contact agents, and assess the criminal and civil issues before a substantive response.
A person can generally decline a voluntary interview. A subpoena, summons, warrant, or court order presents different duties and deadlines, so it should be reviewed promptly rather than ignored.
Our guide to federal investigations explains how target letters, subpoenas, search warrants, voluntary interviews, and other pre-charge government actions differ and why each may require a different response.
Why the accountant relationship must be handled carefully
A taxpayer’s regular accountant may have valuable knowledge, but the accountant may also be a witness. Federal law does not give ordinary accountant communications the same broad protection as attorney-client communications in a criminal case.
The limited tax-practitioner privilege in 26 U.S.C. § 7525 does not apply to criminal tax matters. Work performed to prepare a tax return is also generally treated differently from confidential work necessary to provide legal advice.
What a Kovel arrangement can protect
Under a properly structured Kovel arrangement, a defense lawyer retains an accountant when the accountant’s help is needed for the lawyer to understand financial information and provide legal advice. Some communications and work can then fall within the attorney-client privilege.
Hiring the accountant through a lawyer does not make everything privileged. Routine return preparation, preexisting records, communications shared with outsiders, and work serving mainly an accounting purpose may remain discoverable.
This is why the purpose and scope of the engagement should be set before sensitive analysis begins. Our white-collar defense work may involve accountants or other specialists, but the legal team must direct the arrangement around the needs of the defense.
Amended returns and voluntary disclosure
Correcting a return may be appropriate in a civil matter, but timing and intent matter when criminal exposure exists. An amended return does not automatically remove a completed offense, and its figures or explanation may become evidence.
The IRS Criminal Investigation Voluntary Disclosure Practice is a separate process for taxpayers whose noncompliance was willful. It uses Form 14457 and requires a truthful, timely, and complete disclosure, cooperation, and payment or an approved payment arrangement.
A disclosure is not timely after the IRS has begun a civil examination or criminal investigation, received third-party information identifying the noncompliance, or obtained directly related information through criminal enforcement. Voluntary disclosure is not an amnesty and does not guarantee immunity, though IRS-CI considers a qualifying disclosure when deciding whether to recommend prosecution.
The IRS states that VDP is for willful conduct, not an accidental or negligent error. Applying requires an acknowledgment of willful noncompliance, so no one should enter the process without understanding the admission and likely civil consequences.
Sentencing and financial exposure
The statutory maximum is only the outer limit. If there is a conviction, the judge calculates an advisory range under the U.S. Sentencing Guidelines, then considers the factors in 18 U.S.C. § 3553(a).
Tax loss drives much of the guideline calculation
For many tax offenses, the base offense level comes from the tax-loss table. The calculation may include conduct beyond the tax year named in one count when the relevant-conduct rules apply.
The government’s first number is not automatically the correct one. Issues may include the reconstruction method, nontaxable receipts, business expenses, unclaimed deductions or credits allowed under the guideline’s conditions, payroll-tax treatment, and which acts belong in the same course of conduct.
Other guideline issues can include:
- Sophisticated means: Especially complex concealment or execution may increase the offense level.
- Income from criminal activity: Failing to report substantial income from criminal conduct may produce an enhancement.
- Role in the offense: Organizing or directing others may affect the calculation.
- Obstruction: Destroying evidence, directing false testimony, or obstructive conduct may increase exposure.
- Acceptance of responsibility: A qualifying guilty plea and genuine acceptance may reduce the offense level, but the reduction is not automatic.
Our federal sentencing and mitigation work addresses both the calculation and the person behind it. Employment, family duties, health, restitution efforts, history, and the need to avoid unwarranted disparity can matter under § 3553(a).
Restitution depends on the conviction and sentence
Restitution is more technical than the original draft suggested. For certain Title 18 tax-related offenses, including qualifying fraud or conspiracy convictions, restitution may be mandatory.
For a Title 26 tax offense, a court may impose restitution as an independent part of the sentence when the defendant agrees in a plea agreement. Without that agreement, restitution may still be ordered as a condition of probation or supervised release.
The IRS may assess qualifying tax restitution under 26 U.S.C. § 6201(a)(4) and collect it as if it were tax. That does not prevent the IRS from addressing other civil tax, interest, or penalty amounts that were not resolved by the criminal judgment.
Civil penalties may remain
Under 26 U.S.C. § 6663, the civil fraud penalty is 75% of the portion of an underpayment attributable to fraud. Different civil additions or penalties may apply to nonfiling, nonpayment, employment taxes, information returns, or offshore reporting.
A criminal resolution does not automatically close every civil year or liability. The defense should account for both tracks before evaluating a plea, payment, or disclosure strategy.
Other consequences of a criminal tax case
The effects can extend beyond prison, probation, fines, and tax collection. The result depends on the offense, profession, citizenship, and facts.
- Professional discipline: Lawyers, accountants, financial professionals, and other license holders may face reporting or board proceedings.
- Employment and credentialing: A charge or conviction may affect positions involving money, trust, licensing, or government work.
- Business consequences: A company may face lender concerns, contract issues, internal investigations, and separate civil exposure. When the same financial conduct involves investor disclosures, securities transactions, public-company reporting, or statements to regulators, the matter may also overlap with an SEC fraud investigation.
- Immigration review: Some tax or fraud convictions can have immigration consequences, especially when statutory definitions and loss thresholds are met.
- Public record: An indictment and court filings may reveal financial and business information before the case is resolved.
These outcomes are not automatic or identical in every case. A noncitizen or licensed professional may need coordinated advice from counsel in the relevant field before accepting a plea.
Defense questions that can change the case
A useful defense review does more than recalculate tax. It tests whether the government can prove the charged statute, the person’s state of mind, and the amount attributed to the conduct.
Was there a known legal duty?
Ambiguous ownership, complex accounting rules, inconsistent professional advice, and unclear filing responsibilities can affect knowledge. The defense should identify exactly what duty the government says the person knew.
Was the conduct an affirmative act of evasion?
Failure to file or pay, standing alone, does not establish § 7201 tax evasion. The alleged act and its claimed purpose must be identified and tested.
Was the document materially false?
For a false-return charge, the government must prove material falsity and the defendant’s belief about it. A bookkeeping classification dispute is not automatically a knowingly false material statement.
What did the taxpayer tell the professional?
Complete disclosure and genuine reliance can support a lack-of-willfulness defense. Advice based on incomplete or false facts may do the opposite.
Is the government’s tax-loss calculation sound?
Bank-deposit and expenditure methods can sweep in nontaxable funds or overlook supportable expenses. The defense should trace the money instead of accepting a summary spreadsheet.
Were statements and searches lawful?
Interviews, summonses, subpoenas, warrants, device searches, and seizures create different legal issues. Depending on the facts, counsel may challenge evidence, limit a request, correct an inaccurate theory, or present information before charging.
How Keith & Lorfing approaches federal tax cases
Criminal tax defense is part law, part accounting, and part reconstruction. The goal is to show what the numbers mean without losing sight of what the government must prove about the person behind them.
We may work through years of returns, bank records, bookkeeping data, professional advice, IRS communications, and electronic evidence. We also examine the path of the investigation, the government’s loss theory, possible related charges, and any parallel licensing or business matter.
Keith & Lorfing has offices in Abilene, Lubbock, Midland, and San Angelo, and we focus our practice on West Texas. Our attorneys bring more than 75 years of combined experience and over 500 jury trials.
Those credentials do not replace the records. They give our criminal defense team the courtroom background to investigate the case, challenge the government’s theory, negotiate when that serves the client, and prepare for trial when it does not.
Speak with a West Texas federal tax defense lawyer
A criminal tax investigation may begin with a number, but it will be built around conduct, knowledge, and documents. The defense should be built the same way—carefully, from the full record, before an incomplete explanation becomes the government’s version of events.
Keith & Lorfing offers free consultations for people facing federal investigations and criminal charges in West Texas. Call (325) 480-8100 or contact us online to discuss the situation and the next step.
Frequently asked questions
Can I go to prison simply because I owe back taxes?
No. A tax debt may produce interest, penalties, liens, levies, and other civil collection action, but debt alone does not prove a criminal tax offense.
For the main Title 26 crimes, prosecutors must prove willfulness and the other elements of the charged statute. The required proof differs for evasion, nonfiling, false returns, and payroll taxes.
How can I tell whether my audit became criminal?
There is no single reliable signal. Suspended civil activity can occur when firm indications of fraud are referred, but an ordinary delay does not prove that a criminal investigation exists.
Contact from an IRS-CI special agent, a grand jury subpoena, a search warrant, or criminal questions from federal agents is clearer. Counsel can contact the government to determine status without volunteering a substantive account.
Is failing to file the same as tax evasion?
No. Willful failure to file is generally prosecuted under § 7203, while § 7201 felony evasion requires an affirmative act intended to evade assessment or payment and a tax due and owing.
The same course of conduct can support more than one theory when additional acts are alleged. The indictment and evidence determine the actual charge.
Does my accountant have to keep our conversations confidential?
Do not assume ordinary accountant communications are protected in a criminal tax case. The accountant may be subpoenaed, and the limited federal tax-practitioner privilege does not apply to criminal tax matters.
A properly limited Kovel engagement may protect work necessary for a lawyer’s legal advice. It does not turn tax preparation or every financial document into privileged material.
Should I file an amended return after agents contact me?
Not without advice based on the full facts. An amended return may be appropriate in some situations, but it does not erase earlier conduct and may supply a new signed statement.
The lawyer and tax professional should determine the reason for the correction, the investigation stage, the accuracy of the figures, and whether another compliance process applies. A rushed filing can narrow options.
Will voluntary disclosure prevent prosecution?
It may reduce criminal exposure for an eligible taxpayer, but the IRS expressly says it does not automatically guarantee immunity. The disclosure must be timely, truthful, complete, and made through the required process.
Once the IRS has begun a civil examination or criminal investigation, or has received qualifying information about the noncompliance, the disclosure is generally no longer timely. Eligibility should be evaluated before contacting the IRS.
How long can the government bring a criminal tax case?
26 U.S.C. § 6531 provides a six-year limitations period for many major criminal tax offenses and certain conspiracies, while other tax offenses may have a three-year period. Determining when the clock begins, whether conduct continued, and whether any tolling rule applies can be complicated.
Do not calculate a deadline from the tax year alone. The filing date, alleged affirmative act, time outside the United States, complaint procedure, and charged statute may affect the analysis.
