Accounting scandals are business scandals that arise from intentional manipulation of financial statements with the disclosure of financial misdeeds by trusted executives of corporations or governments. Such misdeeds typically involve complex methods for misusing or misdirecting funds, overstating revenues, understating expenses, overstating the value of corporate assets, or underreporting the existence of liabilities; these can be detected either manually, or by means of deep learning. It involves an employee, account, or corporation itself and is misleading to investors and shareholders.

This type of "creative accounting" can amount to fraud, and investigations are typically launched by government oversight agencies, such as the Securities and Exchange Commission (SEC) in the United States. Employees who commit accounting fraud at the request of their employers are subject to personal criminal prosecution.

Misappropriation of assets – often called defalcation or employee fraud – occurs when an employee steals a company's asset, whether those assets are of a monetary or physical nature. Typically, assets stolen are cash, or cash equivalents, and company data or intellectual property. However, misappropriation of assets also includes taking inventory out of a facility or using company assets for personal purpose without authorization. Company assets include everything from office supplies and inventory to intellectual property.

Fraudulent financial reporting is also known as earnings management fraud. In this context, management intentionally manipulates accounting policies or accounting estimates to improve financial statements. Public and private corporations commit fraudulent financial reporting to secure investor interest or obtain bank approvals for financing, as justifications for bonuses or increased salaries or to meet the expectations of shareholders. The U.S. Securities and Exchange Commission has brought enforcement actions against corporations for many types of fraudulent financial reporting, including improper revenue recognition, period-end stuffing, fraudulent post-closing entries, improper asset valuations, and misleading non-GAAP financial measures.

The fraud triangle is a model for explaining the factors that cause someone to commit fraudulent behaviors in accounting. It consists of three components, which together, lead to fraudulent behavior:

Incentives/pressures: A common incentive for companies to manipulate financial statements is a decline in the company's financial prospects. Companies may also manipulate earnings to meet analysts' forecasts or benchmarks such as prior-year earnings, to meet debt covenant restrictions, achieve a bonus target based on earnings, or artificially inflate stock prices. As for the misappropriation of assets, financial pressures are a common incentive for employees. Employees with excessive financial obligations, or those with substance abuse or gambling problems may steal to meet their personal needs.

Opportunities: Although the financial statements of all companies are potentially subject to manipulation, the risk is greater for companies in industries where significant judgments and accounting estimates are involved. Turnover in accounting personnel or other deficiencies in accounting and information processes can create an opportunity for misstatement. As for misappropriation of assets, opportunities are greater in companies with accessible cash or with inventory or other valuable assets, especially if the assets are small or easily removed. A lack of controls over payments to vendors or payroll systems can allow employees to create fictitious vendors or employees and bill the company for services or time.

Attitudes/rationalization: The attitude of top management toward financial reporting is a critical risk factor in assessing the likelihood of fraudulent financial statements. If the CEO or other top managers display a significant disregard for the financial reporting process, such as consistently issuing overly optimistic forecasts, or they are overly concerned about meeting analysts' earnings forecast, fraudulent financial reporting is more likely. Similarly, for misappropriation of assets, if management cheats on customers by overcharging for goods or engaging in high-pressure sales tactics, employees may feel that it is acceptable for them to behave in the same fashion.