Suppose you sign an IRS examination report agreeing that your business omitted income. Months later, the California Franchise Tax Board (FTB) asks why you never reported the change. Your signature helps establish that you knew about the federal adjustment. Does it also establish that you knew California required a separate report and deliberately withheld it to evade state income tax?
The FTB can use information from a closed IRS audit in a California criminal tax investigation. But the federal report, standing alone, does not answer what you knew about your California filing duty or why you missed it. Federal law permits the IRS to share return information with state tax agencies for tax administration through authorized written requests. Permission to receive IRS records does not automatically make the entire audit file admissible at trial. Internal Revenue Code Section 6103(h)(4) governs disclosure in state tax proceedings, and California’s evidence rules still apply to each document prosecutors seek to introduce. Paying the federal bill does not satisfy a separate California reporting obligation.
Did the IRS Adjustment Actually Trigger a California Reporting Duty?
For an individual, the starting point is the California state tax return. Under California Revenue and Taxation Code Section 18622(a), an individual must report a federal audit change if it increases California personal income tax payable for any year. California state generally gives you six months from each final federal determination. For an IRS examination adjustment, check your federal account transcript for the date the IRS assessed the adjustment. Do not assume the clock started on the date of your last meeting with the examiner, the date you signed the report, or the day you paid.
Consider two adjustments. If the IRS finds business receipts you omitted from both returns, including those receipts may increase your California tax and trigger the reporting duty. By contrast, suppose the IRS disallows a federal itemized deduction for state income taxes. California already disallows that deduction. If you correctly excluded it on your California return and the federal change does not increase your California tax for any year, that change alone does not trigger the individual reporting requirement. Corporations and partnerships have different reporting rules; do not apply the individual exception to an entity without checking its obligations.
When you report a federal adjustment, California requires you to either acknowledge that the federal determination is correct or explain where you believe it is wrong. For an IRS examination change, an individual can generally notify the FTB in writing with the federal determination, supporting schedules, and enough detail to calculate the California effect. You can also file an amended California state tax return. If you initiated the change by filing an amended federal return that increases California personal income tax, Section 18622(b) instead requires an amended California return within six months of filing the federal amendment.
What Could the Audit File Prove About Your Intent?
Section 19706 reaches a willful failure to supply required information with intent to evade California tax. To convict under that theory, prosecutors must prove beyond a reasonable doubt that you had a duty, missed the deadline, knew the duty, chose to violate it, and intended to evade tax when you made that choice. A conviction can carry incarceration and a fine of up to $20,000. An IRS adjustment and a late California report, without evidence of the required intent, do not establish that offense.
An email can matter more than the signature on the federal report. Imagine that your accountant identified the additional California tax and the reporting deadline in writing. A reply directing the accountant to withhold the report so California would not learn of the tax could support an inference of intent. A reply authorizing the accountant to file the state report, followed by an invoice describing that work as complete, could support a very different inference. Neither exchange settles the case on its own. The engagement letter, the attachments, what the accountant actually filed, and any later notices all matter. California’s criminal jury instruction directs attention to what the taxpayer intended when deciding not to supply the information.
In Hudson v. Superior Court, the California Court of Appeal considered a Section 19706 prosecution involving three state income tax returns that Hudson filed years late. The case did not involve an unreported IRS adjustment. At the preliminary hearing, the amounts owed, repeated FTB notices, and Hudson’s prior filing history supported an inference of intent sufficient to proceed with the charges. The court did not require a separate affirmative act of concealment. For someone who missed the reporting deadline, the practical point is that investigators may examine earlier warnings and responses even if nobody falsified a document.
Section 19706 is not the only potential charge. Section 19701(a) separately addresses repeated failures over two or more years to file required returns or supply required information that result in at least $15,000 in estimated delinquent tax liability. That misdemeanor provision does not require intent to evade. A single missed notification, by itself, does not establish repeated failures.
If the FTB has Already Contacted You
Read the notice before deciding how to respond. A Notice of Proposed Assessment is a civil notice. If you dispute the proposed assessment, file a written protest by the “Protest By” date on the notice. Contact from an FTB criminal investigator calls for a different response. Before agreeing to a substantive interview, speak with criminal tax defense counsel. Do not guess about who knew what, tell an agent that your preparer filed something you have never seen, or ignore a formal demand.
IRS information sharing matters here for another reason. A sufficiently detailed IRS report can start California state’s civil assessment period even though you had your own reporting duty. For an assessment resulting from an audit adjustment, timely notice from you or the IRS generally gives the FTB two years from notice, subject to a longer applicable period. If the FTB first receives a sufficiently detailed report of the change from either you or the IRS after the six-month deadline, it generally has four years from receipt to propose an assessment based on that change. If neither you nor the IRS adequately reports the required change, California can propose an assessment attributable to it at any time. These civil assessment rules do not determine criminal guilt or how long prosecutors have to bring a charge.
If you discover the omission yourself, preserve the IRS report, account transcripts, correspondence with the preparer, both sets of returns, and any proof of filing, mailing, or delivery to the FTB. Check what California actually received. A draft state return in a preparer’s folder is not proof that anyone sent it. Address the missed filing promptly. A truthful late report does not, by itself, establish intentional conduct or grant immunity for earlier conduct.
Contact the Tax Law Offices of David W. Klasing Today
At the Tax Law Offices of David W. Klasing, our dual-licensed Civil and Criminal Tax Defense Attorneys & CPAs can start with two concrete questions: What additional California tax, if any, did the federal adjustment produce? What evidence shows what you understood when the report came due? We can reconstruct the state calculation for each affected year, verify assessment dates, and compare the federal audit record with the instructions and records your preparer actually received. That work can identify a defense to an FTB assessment, a filing that still needs attention, or a statement that investigators could misinterpret.
If the FTB has asked why you failed to report an IRS adjustment, we can help prepare an accurate response, protect a civil protest deadline, and evaluate whether to participate in a proposed interview. Call the Tax Law Offices of David W. Klasing at (800) 681-1295 or contact us online HERE to schedule a reduced rate initial consultation online. Have the federal audit report, the California return for the year at issue, and the first FTB letter available. Those documents give us a place to start before you make a statement that may be difficult to take back.
