1. What Separates Tax Evasion from a Reporting Error?
A tax discrepancy does not establish criminal intent. Under 26 U.S.C. § 7201, prosecutors generally need to prove a tax due and owing, an affirmative attempt to evade assessment or payment, and willfulness. The nature of the alleged conduct determines which federal offense applies.
Tax Evasion and False Returns Are Different Offenses
A bookkeeping mistake or misunderstood deduction can produce additional tax without establishing criminal evasion. Federal law distinguishes an incorrect return from a deliberate attempt to defeat a known tax obligation.
Section 7201 addresses attempted tax evasion. Section 7206(1) separately prohibits willfully signing a materially false return or qualifying document under penalties of perjury without believing it to be true and correct.
Unlike § 7201, a § 7206(1) conviction does not require proof of a tax deficiency. Disputes over the correct amount of tax may involve tax controversy and litigation, but criminal liability depends on the charged statute.
Willfulness and Affirmative Acts
Willfulness generally means voluntarily and intentionally violating a known legal duty. Under Cheek v. United States, a genuine misunderstanding of tax law can undermine willfulness, even if the misunderstanding is unreasonable.
A belief that tax laws are invalid does not provide the same defense. Prior filings, accounting instructions, and explanations given to tax professionals may help establish what the taxpayer understood.
Creating false invoices, concealing receipts, or disguising asset ownership can constitute affirmative acts. Using another person's account, however, does not establish tax evasion without evidence connecting the arrangement to an attempt to evade the assessment or payment of tax.
2. Financial Evidence Behind the Allegation
The records should establish what happened before anyone draws conclusions about intent. A difference between bank deposits and reported income may reflect omitted receipts, transfers, or nontaxable funds. Each transaction needs an explanation supported by its source documents.
Income, Deductions, and Account Transfers
Bank deposits are not necessarily taxable income. Loan proceeds and transfers between accounts, for example, require different treatment from business receipts.
Invoices and payment processor statements can establish whether sales entered the accounting system. An unsupported expense may lead to a disallowed deduction, while a knowingly fabricated invoice raises a different question about intent.
Third-party accounts deserve closer examination when someone other than the named owner controls the funds. Transaction histories and account authority records help explain the arrangement.
A civil review of tax audits and adjustments can establish reporting differences without deciding criminal responsibility.
Cpa Advice and Confidentiality Limits
Hiring a CPA does not automatically excuse a false return. The relevant evidence includes what the taxpayer disclosed, what advice the CPA provided, and whether the taxpayer relied on it in good faith.
Emails, draft returns, and requests for missing documents can establish the sequence of decisions. They may also reveal whether the preparer received complete financial information.
Under 26 U.S.C. § 7525, qualifying tax practitioner communications receive limited protection in specified noncriminal federal tax matters. That statutory privilege does not extend to criminal tax proceedings, and ordinary CPA communications do not automatically qualify for attorney-client privilege.
3. Civil Adjustments and Criminal Investigations
The IRS can assess additional tax without bringing criminal charges. Civil examinations determine tax liability, while criminal investigations examine evidence of statutory offenses. An audit alone does not mean prosecutors have opened a criminal case.
Civil Fraud Penalties and Criminal Proof
Under 26 U.S.C. § 6663, the civil fraud penalty generally equals 75 percent of the underpayment portion attributable to fraud, subject to statutory rules.
The IRS bears the burden of proving civil fraud by clear and convincing evidence. Criminal prosecutors must establish guilt beyond a reasonable doubt.
These standards serve different proceedings. A civil fraud finding does not substitute for proof of the elements of a criminal charge.
IRS Criminal Investigation and Federal Prosecution
IRS Criminal Investigation examines suspected criminal tax violations through financial records, witness interviews, and other investigative methods.
The Department of Justice reviews federal criminal tax matters under applicable authorization procedures. An investigation does not itself constitute a charge, and prosecution depends on separate legal decisions.
A government and internal investigations review may address document requests, witness interviews, and the distinction between corporate and individual representation.
4. Federal and California Procedures and Deadlines
Federal and California tax authorities administer separate obligations. The applicable law depends on the tax involved and the conduct alleged, not merely the taxpayer's location. Criminal limitations periods and civil filing deadlines also follow different statutory rules.
California Tax Offenses and Court Assignment
California Revenue and Taxation Code § 19706 addresses specified failures to file returns or supply information, as well as false or fraudulent returns or statements, when the statutory requirements for willfulness and intent to evade tax are met.
It does not govern every California tax offense. Other tax categories have separate statutory provisions.
The IRS administers federal taxes, while the Franchise Tax Board administers California income and franchise taxes.
Under Criminal Local Rule 18-1, federal criminal cases involving offenses allegedly committed in Santa Clara County ordinarily receive assignment to the San Jose courthouse of the Northern District of California, unless otherwise ordered. State criminal proceedings follow separate court rules.
Criminal Limitations Periods and Tax Court Deadlines
Federal criminal tax offenses have distinct limitations periods. Under 26 U.S.C. § 6531, tax evasion under § 7201 and filing a false return under § 7206(1) generally carry six-year limitations periods.
The limitations period does not necessarily begin on the same date for every offense. In a tax evasion case, a later affirmative act of evasion can affect when the six-year period begins, while false-return offenses generally follow rules tied to completion of the charged filing offense.
Civil Tax Court deadlines operate differently. Under 26 U.S.C. § 6213(a), a taxpayer generally has 90 days after a statutory notice of deficiency is mailed to file a petition, or 150 days when the notice is addressed to a person outside the United States.
If the last day falls on a Saturday, Sunday, or legal holiday in the District of Columbia, that day is not counted as the final day under § 6213(a).
These civil filing periods do not determine the time allowed to respond to criminal subpoenas or charging documents.
Record Preservation and Individual Representation
A civil examination letter, IRS summons, grand jury subpoena, and criminal charging document impose different obligations. The issuing document and applicable procedural rules determine the response requirements.
Existing tax returns, accounting records, bank statements, and professional correspondence should remain intact. Deleting or altering relevant material can create additional legal exposure.
Company counsel does not necessarily represent an officer whose conduct is under investigation. Separate representation and privilege questions arise when corporate and individual interests differ.
A federal and state fraud defense review focuses on the actual charge, evidence of intent, and applicable procedural rights.
28 Oct, 2026
