June 7, 2026 – SAN DIEGO, CA – Oladapo Olagbemi, a longtime certified public accountant, pleaded guilty in US DOJfederal court on Thursday, admitting that he filed thousands of false income tax returns on behalf of clients that resulted in more than $5 million in improper deductions and credits.

Olagbemi, who managed San Diego-based D.A.O. Accounting, Consulting, and Taxation, pleaded guilty to four counts of aiding and assisting the preparation of false tax returns. Shortly before tax day, April 15, 2026, he signed a plea agreement in which he admitted to multiple schemes between tax years 2019 and 2023 to help clients get illegitimate refunds by claiming business expenses, charitable gifts, and energy credits to which the taxpayers were not entitled. 

Olagbemi is scheduled to be sentenced on August 28, 2026, before U.S. District Judge Ruth Bermudez Montenegro.

Based on Olagbemi’s plea agreement, one of his schemes was preparing false Schedules 1, C, and E accompanying his client’s individual income tax returns between at least 2020 and 2023. He prepared returns that reported false business losses totaling hundreds of thousands of dollars. Taxpayer clients had no such reportable business, and the expenses he claimed for them were non-deductible personal expenses. Olagbemi knew the taxpayers were not entitled to report such losses or the resulting decreases in taxable income. During that four-year period, he prepared at least 5,470 Form 1040 returns with Schedules C. At least 3,981 of those had no gross receipts for the falsely claimed businesses. 

Another of Olagbemi’s schemes was preparing false Forms 2106 to accompany taxpayers’ Form 1040 returns. On this form, Olagbemi advised and presented to the IRS purported business expenses and resulting decreases in taxable income, even though he knew the taxpayer was not permitted to use the 2106 form because they were not a fee-based state or local government official. Between 2020 and 2023, Olagbemi was involved in presenting to the IRS at least 1,684 Forms 2106 with individual clients’ tax returns. After Olagbemi became aware of the IRS’s investigation of his fraudulent use of Schedule C returns, he increased his use of fraudulent use of Forms 2106—and prepared several of them even after being notified by the IRS about the proper uses of this form. 

Olagbemi also used Schedules A to prepare and submit false income tax returns. On these documents, he falsely claimed or overstated gifts to charity and corresponding itemized deductions of tens of thousands of dollars, even though he knew the taxpayer was not entitled to report such charitable contributions. 

Further, based on the plea agreement, Olagbami prepared individual tax returns falsely claiming residential energy credits. He prepared and presented false Forms 5695 to accompany Form 1040 tax returns between at least 2021 and 2023. On these Forms 5695, he advised a taxpayer client to falsely claim solar water heating property costs, even though he knew the client did not purchase or have any such costs and was not entitled to report them or the corresponding tax credits. 

Based on the plea and restitution agreements, Olagbemi agreed to restitution of least $1,522,794 based on his schemes and resulting tax losses between 2018 and 2023. He also agreed to be permanently prohibited from preparing, assisting in, directing, or supervising the preparation or filing of federal tax returns for anyone other than himself. 

The case is being prosecuted by Assistant U.S. Attorney Peter Horn. 

DEFENDANT                                 Case Number 26CR1982-RBM

Oladapo Olagbemi                         Age: 72                          San Diego, CA

SUMMARY OF CHARGES

Aiding and Assisting in Preparation of False Income Tax Returns – Title 26, United States Code, Section 7206(2)

Maximum penalty (per count): Three years in prison; fine of up to $250,000

INVESTIGATING AGENCY

Internal Revenue Service Criminal Investigation

Source: DOJ Release