Duncan John MacDonald

Introduction

Duncan John MacDonald, a Texas resident, was indicted on 22 September 2026 by a federal grand jury in Dallas for promoting an illegal tax shelter — a fraudulent trust scheme blamed for sheltering more than $1.5 billion of client income and causing an estimated tax loss to the IRS of more than $200 million — and separately for allegedly soliciting $2 million from investors under false pretenses. He is one of four Texas residents charged in the case, announced by the Northern District of Texas on 16 October 2026. He should not be confused with Duncan Fraser MacDonald, the Sarasota man charged in a separate case over threatening social-media posts, who appears elsewhere on this site.

Background Information

According to the indictment, MacDonald and co-defendants Sarah Duren, Richard Ronald Cayce, and Thomas Weickgenant promoted and sold the trust scheme for fees that often exceeded $100,000, fraudulently telling clients they could assign income to sham trusts to defer paying taxes in perpetuity while continuing to enjoy the benefit and control over their assets and income. The defendants also allegedly encouraged some clients to backdate their trusts and file amended income tax returns claiming refunds for prior years’ taxes.

The Controversy or Incident That Led to Their Cancellation

Charged, not convicted. MacDonald faces a multi-count indictment including conspiracy, tax evasion, wire fraud, and transactions with criminally derived property; the allegations are unproven and he is presumed innocent.

The indictment alleges MacDonald and Duren, common-law spouses, evaded income taxes on the millions they received in fees — concealing MacDonald’s ownership of the shelter business, lying to federal investigators, filing false tax returns, and routing personal living expenses through trusts and nominee accounts in third parties’ names. Cayce allegedly owned the distributorship licensing the shelter and failed to report millions in fees; Weickgenant allegedly filed false returns for clients and obstructed IRS audits, instructing clients not to speak with the IRS and encouraging at least one to defy a court order enforcing an IRS summons. MacDonald alone is alleged to have fraudulently solicited $2 million from investors for a purported “digital trusts” business, then spent it on luxury goods including a Rolls Royce Ghost and the down payment for a yacht — while under a court-ordered injunction prohibiting him from selling securities not registered with the SEC. If convicted, he faces up to five years on the conspiracy count, five years per tax-evasion count, 20 years per wire-fraud count, and 10 years per count of transactions with criminally derived property.

Public Reaction and Consequences

The case was announced jointly by Assistant Attorney General Colin M. McDonald of the Justice Department’s National Fraud Enforcement Division and U.S. Attorney Ryan R. Raybould, and is investigated by IRS Criminal Investigation, prosecuted by Assistant U.S. Attorney Eric B. Chen and National Fraud Enforcement Division Tax Section attorneys William Montague and Max Willner-Giwerc. The $200 million estimated loss figure places the scheme among the larger tax-shelter prosecutions announced by the division.

Current Status

The indictment remains pending in the Northern District of Texas. No plea has been announced for MacDonald or any co-defendant, no trial date appears in the announcement, and the government’s case rests on allegations of sham-trust promotion, concealed fee income, and the investor solicitation spent on the Rolls Royce and yacht.

Impact on Their Career/Life

A promotion business built on six-figure fees for trust packages now stands exposed as the subject of a federal conspiracy indictment, with MacDonald’s personal spending — allegedly financed by the $2 million investor raise — documented in the charging papers. Until the case resolves, the allegations are unproven, but the injunction he was already under when the solicitation allegedly occurred now sits alongside a wire-fraud count carrying a 20-year maximum per count.

Sources

• U.S. Attorney’s Office, Northern District of Texas, “Texas residents charged with promoting Illegal tax shelter” — source