A Jacksonville Beach dentist has been indicted on 16 federal counts after prosecutors say he stopped filing personal tax returns in 2012 and went on to spend business funds on a $310,000 home and his children’s private school tuition while owing more than $1 million in unpaid taxes. Jon Christopher Williams faces four counts of attempting to evade individual income tax, 11 counts of failing to account for and pay over payroll taxes, and a single count of obstructing the administration of internal revenue laws.
According to News4JAX, prosecutors say Williams had not filed or paid personal income taxes since 2012, even as he continued running a dental practice in the years that followed. The outlet reports that Williams failed to report roughly $3,371,657 in business income between 2020 and 2023, resulting in approximately $1,079,136 in unpaid income taxes for those years, according to the indictment. Per the U.S. Department of Justice, the case followed a multi-year investigation by IRS Criminal Investigation, and U.S. Attorney Gregory W. Kehoe announced that a federal grand jury in Jacksonville returned the indictment.
Williams had not always avoided the tax system. Federal prosecutors say he filed personal Form 1040 returns and paid income taxes every year from 2002 through 2012, and separately filed tax forms for his dental practice and paid employment taxes from 2008 through 2013, according to the Justice Department. That decade of compliance matters for prosecutors, since federal tax evasion convictions require proving that a defendant willfully violated a legal duty they knew existed.
A Decade Of Filings, Then Silence
After 2012, per News4JAX, Williams failed to file personal tax returns for 2013 and 2014, though he did request extensions for those years, and he also requested an extension for his dental practice’s 2013 filing. He never filed dental practice tax forms again after 2012, the outlet reports. During the same stretch, prosecutors allege he failed to report and pay $133,360 in employment taxes for his dental business across seven quarters between the second quarter of 2020 and the fourth quarter of 2022, according to the Justice Department.
Meanwhile, News4JAX reports that Williams used business account funds for personal travel, tens of thousands of dollars from a business bank account toward his children’s school tuition, and $310,000 to buy a home — all according to prosecutors. Court dockets reviewed by the outlet show no court dates have been set for Williams as of Monday, and it remains unclear whether he has retained an attorney.
Obstruction Allegations And Sovereign Citizen Tactics
IRS Criminal Investigation began looking into Williams for possible criminal tax violations in October 2021, according to News4JAX. The Justice Department alleges that after being served with an IRS summons that same month, Williams tried to obstruct the investigation between November 2021 and May 2024 by sending emails and letters to the investigating agent, the agent’s supervisor, a Florida member of Congress, and both of Florida’s U.S. senators.
Per News4JAX, Williams emailed an IRS agent asserting personal liability for actions taken under color of law, and separately demanded that the IRS, Treasury, and Attorney General pay him $525,000 within 30 days. He also demanded that the IRS cease and desist all activities against him, the outlet reports, and in May 2023 mailed an IRS-CI agent a statement claiming an affidavit, oath, repudiation and revocation of citizenship had been served and placed on the public record.
Those tactics — citizenship repudiation claims, demands for payment from federal agents, and assertions that agents act under color of law — are recognized sovereign citizen tax protester strategies that federal courts uniformly reject, according to Kelleter Law PC. Federal courts have consistently held that earning income within the U.S. creates tax obligations regardless of any citizenship repudiation filing.
What Convictions Could Mean, And National Enforcement Trends
Under federal statutory guidelines, each count of tax evasion and failure to pay employment taxes carries up to five years in prison, while the obstruction count carries up to three years, exposing Williams to a maximum statutory penalty of up to 78 years if he is convicted on all 16 counts, per the Justice Department. Those numbers represent the legal ceiling set by Congress rather than a guaranteed sentence under federal guidelines.
The case also lands amid heightened federal scrutiny of payroll tax schemes nationally. Between fiscal years 2023 and 2025, IRS Criminal Investigation opened 1,006 employment tax evasion cases across the country representing $1.4 billion in alleged tax fraud, according to the Internal Revenue Service. The agency also reported an 89% conviction rate in fiscal year 2025 and a 90% rate the year before for tax and financial crime cases referred for prosecution.
Williams held a notable credential in Florida dental circles: he earned Mastership status from the Florida Academy of General Dentistry in 2021, a designation requiring more than 1,100 hours of continuing dental education across all disciplines. Under Chapter 466 of the Florida Statutes, dental licenses require practitioners to maintain good moral character, and felony charges or convictions can lead to administrative complaints, emergency suspensions, or license revocation by the Florida Department of Health and Board of Dentistry, according to the Florida Board of Dentistry. Whether the department has opened any such proceeding against Williams remains unknown.
News4JAX reports that it called a phone number associated with Williams in Atlantic Beach, but he did not immediately respond to the outlet’s request for comment.
