A former interpreter for Los Angeles Dodgers baseball player Shohei Ohtani was charged with bank fraud and accused of stealing more than $16 million from the athlete to make thousands of illegal sports bets.
Ippei Mizuhara, a close friend of the Dodgers superstar, admitted to stealing from him by hijacking his account and impersonating him with bank staff to feed a “voracious” gambling habit, U.S. Justice Department and Internal Revenue Service officials said at a press conference Thursday. They spoke as a criminal complaint was unsealed in federal court in California.
There is no evidence that the 29-year-old pitcher authorized the transfers, they said, adding that he has cooperated fully in the investigation.
“Mr. Ohtani is considered a victim,” said Martin Estrada, the U.S. attorney in Los Angeles. Mizuhara stole the money largely to finance “his voracious appetite” for illicit sports wagers, he said.
Shohei Ohtani and Ippei Mizuhara
Rob Leiter/MLB Photos/Getty Images
Records reflect about 19,000 wagers made between December 2021 and January 2024, with roughly 25 bets a day on average, according to the complaint. They ranged from about $10 to $160,000, with an average bet of about $12,800.
Mizuhara, 39, is scheduled to appear in court Friday afternoon in Los Angeles. While he won’t be asked to enter a plea, the court will likely arrange for him to be released on bond.
If convicted, he could face as many as 30 years in prison, Estrada said, though under federal sentencing guidelines the term could be significantly shorter. And given the U.S. statement about his admission, it’s also possible he will strike a plea deal.
Betting on sports is legal in many states, but not in California, where the Japanese wunderkind has played since 2018. Major League Baseball prohibits players and other personnel from betting on its games. MLB rules also bar betting with illegal bookmakers.
MLB symbol
The charges come as Ohtani, a rare combination of pitcher and hitter who signed a record $700 million contract with the Dodgers in December, has become a symbol of MLB’s efforts to expand its brand worldwide. The Dodgers, owned by investors led by billionaire Mark Walter, opened their regular season last month with two games in South Korea.
Mizuhara recently became the subject of multiple probes following reports of his ties to a southern California bookmaker under federal investigation.
At a March 25 press conference Ohtani said he has never bet on sports or used a bookmaker.
“I never agreed to pay off the debt or make payments to the bookmaker,” the native of Japan said through a new interpreter, adding that he was “very saddened and shocked” by the allegations against Mizuhara.
Impersonating Ohtani
Mizuhara lied to Ohtani’s bank to access his friend’s account, Estrada said, adding that prosecutors had obtained recordings of phone calls with bank employees in which he pretended to be Ohtani and got the bank to approve large wire transfers.
The contact information for Ohtani’s account was changed to Mizuhara’s phone, according to the criminal complaint.
Mathew Bowyer, the alleged bookmaker, is under criminal investigation by the IRS as well, the agency confirmed last month. Meanwhile, Major League Baseball has also been investigating Mizuhara.
In early December 2022, Mizuhara messaged a person the complaint refers to as Bookmaker 1, saying, “Can u bump me last 200? I swear on my mom this will be the last ask before I pay it off once I get back to the states,” according to the complaint.
‘It’s all over for me’
In a message to the bookmaker last month, Mizuhara feared the game was up, the complaint suggests.
“Have you seen the reports?” he said, referring to news accounts of the scandal.
“Yes, but that’s all bulls—. Obviously you didn’t steal from him,” prosecutors say the bookmaker responded. “I understand it’s a cover job I totally get it.”
“Technically I did steal from him,” Mizuhara responded, according to the complaint. “It’s all over for me.”
The case is U.S. v. Mizuhara, 24-mj-02125, U.S. District Court, Central District of California.
Corporate accounting departments face expanding reporting expectations as international sustainability disclosure standards achieve regulatory enforcement across major global jurisdictions. Chief Accounting Officers (CAOs) and corporate controllers are establishing rigorous internal accounting controls to treat Environmental, Social, and Governance (ESG) metrics with the same data precision, auditability, and governance as traditional financial statements.
Regulatory Harmonization Under Global Sustainability Frameworks
The implementation of standardized sustainability reporting frameworks—notably rules established by international sustainability accounting boards—has created unified expectations for public and large private enterprises. Corporations must report standardized metrics covering greenhouse gas emissions (Scope 1, 2, and material Scope 3), energy utilization, workforce demographics, and supply chain governance.
In Europe and other participating international jurisdictions, double materiality principles are mandatory. Under double materiality, organizations must report both how external sustainability risks impact corporate financial performance, and how internal corporate operations affect surrounding environmental and social structures.
Integrating Sustainability Metrics into Core ERP Systems
To provide auditable non-financial data, enterprise organizations are integrating specialized carbon accounting and ESG management platforms directly into core ERP systems. Automated data collectors capture energy utility invoices, logistics fuel consumption metrics, and vendor compliance records in real time.
Establishing automated, traceable data pipelines ensures that non-financial reporting is supported by clear audit trails. This structured approach allows external financial auditors to provide reasonable assurance on sustainability disclosures during annual corporate reporting cycles.
Financial Impacts and Capital Market Disclosure
Accurate ESG reporting directly influences corporate cost of capital and institutional credit ratings. Commercial lenders and institutional asset managers systematically incorporate sustainability metrics into risk pricing models. Companies that demonstrate transparent, verifiable progress in operational energy efficiency and climate risk mitigation benefit from expanded access to green bond markets and lower debt pricing.
Action Steps for Accounting Leadership
1. Implement Double Materiality Frameworks: Conduct comprehensive assessments to identify material financial and operational sustainability metrics.
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Internal audit departments and corporate risk managers are modernizing internal control frameworks by shifting from periodic sampling techniques to continuous monitoring and machine learning analytics. As operational data volumes increase across enterprise organizations, automated control testing ensures financial integrity, prevents corporate fraud, and streamlines annual audit engagements.
The Limitation of Periodic Audit Sampling
Historically, internal and external auditors evaluated internal controls by reviewing random samples of financial transactions—often analyzing less than five percent of total ledger entries. In complex enterprise environments, periodic sampling methods carry inherent risks of overlooking localized financial misstatements, unauthorized disbursements, or operational control breakdowns.
In 2026, progressive internal audit functions are utilizing automated continuous monitoring platforms that evaluate one hundred percent of financial transactions in real time. Continuous control auditing systems continuously monitor general ledger entries, procurement approvals, and expense reimbursements across all operating subsidiaries.
AI-Powered Fraud Detection and Anomaly Identification
Machine learning models trained on historical corporate financial data excel at identifying subtle transactional anomalies that indicate potential fraud or operational error. Automated systems instantly flag duplicate invoice payments, unapproved vendor creation, unusual journal entry timing, and unauthorized override of authority thresholds.
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Streamlining External Audit Preparation
Continuous internal control monitoring delivers significant benefits during annual external financial audits. External audit firms can review continuous audit logs and automated control testing documentation, reducing the time required for manual field testing.
This integrated approach lowers overall audit compliance fees, reduces administrative burdens on corporate accounting staff, and provides senior management and audit committees with real-time visibility into the organization’s overall risk profile.
Core Implementation Guidelines
1. Transition to 100% Data Testing: Replace legacy sampling methods with automated continuous audit monitoring systems.
2. Deploy Anomaly Detection Algorithms: Implement machine learning models to identify unauthorized transactions and operational control overrides.
3. Align Internal and External Audit Workflows: Coordinate continuous control testing protocols with external auditors to optimize annual compliance cycles.
Corporate tax accounting departments are navigating an era of unprecedented regulatory complexity as global tax harmonization frameworks take full effect alongside real-time digital tax reporting mandates. Tax directors and accounting teams are adopting cloud-based tax compliance automation tools to manage multi-jurisdictional tax liabilities and satisfy stringent reporting rules across international jurisdictions.
Implementation of Global Minimum Tax Provisions
The implementation of international tax reform agreements—notably the Pillar Two global minimum tax framework—has reshaped multinational corporate tax planning. Multinational enterprises with consolidated revenues exceeding established thresholds must ensure an effective tax rate of at least 15% across every jurisdiction in which they operate.
Accounting teams are implementing specialized tax calculation modules integrated directly into enterprise resource planning (ERP) platforms. These automated tools calculate effective tax rates per country, identify top-up tax liabilities, and generate standardized compliance documentation required by national tax authorities.
Real-Time Digital Invoicing and E-Reporting Mandates
Tax authorities across Europe, Latin America, and Asia-Pacific have enacted mandatory electronic invoicing (e-invoicing) and continuous transaction controls (CTC). Under these systems, corporate transaction data must be submitted electronically to government portals in real time at the point of sale or invoice issuance.
This shift toward continuous digital tax reporting eliminates traditional annual tax audits in favor of ongoing automated compliance monitoring. Accounting departments are upgrading invoicing software to ensure seamless XML data formatting, digital signature authentication, and real-time validation against tax authority databases.
Automation and Data Analytics in Corporate Tax Strategy
To keep pace with dynamic tax legislation, tax departments are transitioning from reactive compliance teams to proactive strategic advisors. Machine learning algorithms analyze corporate transactional data to identify tax credits, research and development (R&D) incentives, and cross-border transfer pricing adjustments.
By automating routine tax return filings and calculations, corporate tax directors can focus on long-term capital structuring, evaluating the tax implications of corporate mergers, and optimizing international supply chain networks.
Strategic Priorities for Tax Executives
1. ERP System Upgrades: Ensure enterprise software is capable of generating real-time, granular tax data required for global minimum tax compliance.
2. E-Invoicing Integration: Implement scalable e-invoicing platforms to satisfy regional continuous transaction control regulations.
3. Strategic Tax Analytics: Utilize predictive tax modeling tools to evaluate structural changes in corporate operations and cross-border trade.