Equity Research (Part 8):Accounting for Stock Options

In today’s corporate landscape, stock-based compensation has become a cornerstone of employee remuneration, particularly among growth oriented and technology companies. While offering employees a stake in company success aligns interests and incentivizes performance, it also introduces significant complexities in financial reporting and valuation. Among the most debated and nuanced of these are Employee Stock Option Plans (ESOPs/EOs), which have historically allowed companies flexibility but also room for manipulation in how they report compensation costs. This chapter explores the mechanics, tax implications and evolving accounting standards for stock options, providing clarity for analysts, investors and professionals seeking to understand their impact on financial statements and firm valuation.

Introduction to Stock Option Plans

The increasing popularity of employee share ownership has led to two primary methods for employees to become shareholders: Stock Ownership Plans (ESOPs) and Stock Option Plans (ESOPs/EOs). While similar, these plans are not identical. Accounting for stock options has historically been a highly controversial subject, with the absence of well-defined standards allowing companies to window dress their financial statements. This chapter aims to clarify the distinctions between ESOP and SOP, delve into the relevant accounting standards for stock options, and explain stock option pricing methods.

Employee Stock Ownership Plans (ESOPs) vs. Employee Stock Option Plans (EOs)

An Employee Stock Ownership Plan (ESOP) is a tax-qualified, defined-contribution retirement plan that makes a company’s employees partial owners. The sponsoring employer makes contributions, which are invested specifically in the company’s stock and grow tax-deferred. ESOPs offer benefits such as increased cash flow, tax savings for the company, and enhanced productivity from motivated workers, while employees gain by sharing in the company’s success. Due to their tax benefits, ESOPs are properly regulated.

An Employee Stock Option (ESO) plan, also referred to as an Employee Stock Option Plan, grants an employee the right to buy a specific number of shares of their employer’s stock at a stated price (known as the grant price, strike price, or exercise price) over a set period, often ten years. Most ESO plans are offered by publicly traded companies or those soon to go public. Shares typically vest over several years, meaning only a fraction can be exercised annually. An option is in the money if its exercise price is below the current stock trading price; otherwise, it is “underwater”.

Types of Stock Option Plans

There are two main types of stock option plans based on their tax implications:

• Non-Qualified Stock Options (NQOs): For NQOs, investors generally do not owe taxes when the options are granted. Instead, ordinary income tax is paid on the difference between the exercise price and the current stock price value when the options are exercised. Companies can deduct this amount as a compensation expense. Any subsequent appreciation in the stock is taxed at capital gains rates upon sale, provided the shares are held for at least one year. NQOs can be granted at a discount to the current stock price and may be transferable to children and charity if permitted by the employer.
• Incentive Stock Options (ISOs) / Qualified Stock Options: With ISOs, no income tax is due when the options are granted or when they are exercised. Tax is deferred until the stock is sold, at which point the entire gain is taxed. To qualify for the lower, long-term capital gains rate, the stock must be sold at least two years after the options were granted and at least one year after exercise. Failure to meet these conditions results in a “disqualifying disposition” where the gain at exercise is taxed as ordinary income, and subsequent appreciation is taxed as capital gains. ISOs cannot be granted at a discount to the current stock price and are generally not transferable, except through a will.

Ways to Exercise Stock Options

There are three fundamental ways to exercise stock options:

1. Pay Cash: This is the most straightforward method.
2. Stock Swap: Some employers allow employees to trade company stock they already own to acquire option stock. Since the exercise price is typically below the stock price, this results in acquiring more shares than were given up.
3. Cashless Exercise: In this technique, an employee borrows money from a broker to exercise the options and then sells just enough of the newly acquired shares to cover the costs. The employee receives the difference in either stock or cash.

Controversy Over Stock Options Accounting

The accounting for stock options has been a contentious issue in the accounting field for decades. The core debate revolves around whether compensation expense for stock options should be recognized and, if so, how it should be allocated over time.

Before 1995, Accounting Principles Board (APB) Opinion 25, issued in 1972, governed stock option accounting. APB Opinion 25 used the intrinsic value method, where compensation expense was determined as the excess of the stock price at the measurement date (usually the grant date) over the option exercise price. Because most stock options were granted with exercise prices equal to or greater than current market prices, no compensation expense was recognized. This approach was criticized for ignoring the potential future value of the stock exceeding the exercise price.

In June 1993, the Financial Accounting Standards Board (FASB) attempted to address this by proposing SFAS 123, which aimed to recognize the reality of stock-option value. This proposed standard required measuring option value based on fair value, estimated using models like Black-Scholes or binomial option-pricing models. This meant that total compensation expense would be based on the fair value of options expected to vest on the grant date, with no subsequent adjustments for stock price changes.

This proposal met with massive opposition, particularly from high-technology companies that heavily utilized stock options. These companies argued that expensing stock options would impair their stock prices, put them at a disadvantage, and hinder their ability to attract top management. The opposition even extended to Congress, with Senator Joseph Lieberman introducing a bill in 1993 to mandate the SEC to prohibit reporting compensation expense for stock-option plans on the income statement.

Facing powerful opposition, FASB compromised in 1995. SFAS 123 encouraged, rather than required, the recognition of compensation cost based on the fair value method. Companies continuing to follow APB 25 were, however, required to disclose in the financial statement notes what such expenses would have been under the fair value method. Many observers criticized this compromise as a politicized rule-making process that prioritized economic consequences over proper accounting. Warren Buffett famously criticized this in 1998, stating that existing accounting principles “ignore the cost of stock options when earnings are being calculated, even though options are huge and an increasing expense at many corporations,” calling it “outrageous” and an “egregious flaw”.

Critics became more vocal following widespread concerns over deceptive accounting practices at companies like Enron, Tyco, and WorldCom. A survey of 20 prominent high-tech companies in 2003 revealed that Buffett’s estimated adjustment of 5% to 10% for stock option compensation expense was often conservative; for companies like Yahoo and Adobe, the percentages were 86% and 70%, respectively. Furthermore, for six of the surveyed companies, expensing stock options would have converted a net profit into a net loss.

Revision of Financial Accounting Standards for ESOs (SFAS 123(R))

The accounting issue for stock options gained renewed urgency after Enron’s accounting errors in October 2001, fueling a demand for greater transparency. In response, FASB released SFAS 123 (Revised), Share-Based Payment, in December 2004, requiring public and nonpublic companies to recognize stock-based compensation in their income statements starting in 2006.

FASB cited four main reasons for issuing SFAS 123(R):

1. Addressing Concerns of Users: Users complained that APB Opinion 25’s intrinsic value method failed to faithfully represent the true cost of issuing stock options, as issuing new shares upon exercise reduces earnings per share.
2. Improving Comparability: SFAS 123(R) aimed to eliminate alternative accounting methods. While some companies voluntarily adopted the fair value method, most continued to use APB 25. FASB advocated for similar economic transactions to be accounted for similarly, favoring the fair value method for all publicly traded companies.
3. Simplifying U.S. GAAP: The new standard would simplify accounting for stock options by eliminating the intrinsic value method and its associated rules.
4. International Convergence: SFAS 123(R) aimed to harmonize U.S. accounting standards with international standards, particularly the IASB’s rule requiring expensing of stock options as of January 1, 2005, which is mandatory for publicly listed companies in the European Union and Australia.

Pricing and Valuation of Stock Options

The valuation of stock options is critical for accounting purposes.

Black-Scholes Option-Pricing Model: Currently, most companies use the Black-Scholes option-pricing model, developed by Fischer Black and Myron Scholes in the early 1970s. This model calculates the present value of a stock option at the grant date by incorporating specific terms of the option and assumptions about future stock price performance. It is a probability model that assumes underlying stock prices can be modeled by a probability distribution.

Of the six variables in the Black-Scholes model, the estimated future volatility of the stock price is the most challenging to compute. Volatility measures the stock price fluctuation relative to itself, not to a market average (which is beta). It represents the standard deviation of the expected stock price. SFAS 123 suggested using historical stock prices over a period equal to the options’ expected life to estimate volatility. The estimate of volatility can significantly affect the option’s value; for example, an option with a $10 exercise price and market value, six-year life, and no dividend yield, would be valued at $4.18 with 30% volatility but $6.75 with 70% volatility.

Limitations of the Black-Scholes model include its development for traded options (which lack vesting restrictions and are fully transferable) and its reliance on highly subjective assumptions like expected stock price volatility. Management opinions suggest existing models may not reliably measure the fair value of employee stock-based awards due to these characteristics and the sensitivity to input changes.

Lattice Models: SFAS 123(R) does not specify a single option-pricing model but suggests either Black-Scholes or lattice models. SFAS 123(R) provides new guidance on option valuation, emphasizing complex techniques not widely used before. It asserts that both the model and its inputs should align with values placed by willing parties. FASB suggested that lattice-based models satisfy this criterion better than Black-Scholes.

While lattice models use similar input categories as Black-Scholes, they offer enhanced capabilities:

• They can reflect post-vesting employment termination behavior and other adjustments specific to employee share options.
• They can accommodate changes in dividends and volatility over the option’s contractual term.
• They can incorporate estimates of expected option-exercise patterns and black-out periods (when options cannot be exercised).

SFAS 123(R) requires at least six inputs, similar to Black-Scholes, but specifies changes in their measurement. A range of reasonable estimates is anticipated for expected volatility, dividends, and option terms, with an average (expected value) to be used if the likelihood within the range is similar. Unlike Black-Scholes’ straightforward mathematical equation, the lattice model uses an iterative approach, generating numerous possible outcomes and assigning probabilities, typically requiring computer-based models.

Accounting for Tax Benefits of Employee Stock Options (ESOs)

Under APB 25, when Nonqualified Stock Options (NQOs) are exercised, the granting firm obtains a tax deduction equal to the amount of ordinary income recognized by the employee on the exercise date. However, under APB 25 treatment, the firm recognized no compensation expense for financial reporting purposes, leading to a difference between book and taxable income. APB 25 required that the tax benefits related to this difference be accounted for as a credit to Additional Paid-In Capital with an offsetting debit to Income Taxes payable. This accounting treatment meant that the current portion of the total tax expense reported in financial statements overstated the actual taxes due on current period taxable income by the amount of the ESO tax benefit. This overstatement was eliminated by the SFAS 123 fair value method.

The tax code identifies two types of ESOs: statutory (qualified or incentive options/ISOs) and non-statutory (nonqualified options/NQOs). Most firms issue primarily NQOs because the tax code limits the amount of ISOs an individual can receive.

Key terms in ESO accounting include:

• ESO Tax Deduction: The dollar amount the firm deducts on its tax return in the period when ESOs are exercised.
• ESO Recognition: The dollar amount and time period in which the firm recognizes the ESO tax benefit as a credit to shareholders’ equity.
• ESO Realization: The dollar amount and timing of the actual cash savings from the ESO tax deduction, reported on the Cash Flow Statement. This is a cash flow adjustment because the ESO tax benefit did not reduce current tax expense in the income statement.

There are three scenarios for ESO tax reductions:

1. Firm with Positive Taxable Income: When a firm with positive taxable income takes an ESO deduction, book income exceeds taxable income (because the stock option amount is not an expense under APB 25). This results in current tax expense exceeding the actual tax liability, meaning the current tax expense on the financial statements is overstated by the tax benefits of the stock options. For example, a firm with $12,000 pretax book income and a $2,000 stock option deduction at a 35% tax rate would pay $3,500 in taxes but report a current tax expense of $4,200, overstating it by $700 ($2,000 x 0.35).
2. Firms with Tax Losses but no Valuation Allowance: In this scenario, when the ESO deduction creates a tax Net Operating Loss (NOL) and no valuation allowance is established, the firm reports a positive current tax expense under APB 25 and an ESO tax benefit. For instance, Microsoft in fiscal 2000 reported pretax book income and a significant tax benefit from stock options, yet still reported a current tax expense, even though little or no taxes were likely due. If a tax loss is incurred and the ESO tax deduction increases it, current tax expense is zero (assuming no NOL carryback). However, the amount credited to shareholders’ equity (ESO recognition) still equals the ESO tax deduction times the tax rate. Subtracting the ESO tax benefit from zero current tax expense in this case does not accurately estimate the firm’s current tax burden or tax loss.
3. Firms with Tax Losses with Valuation Allowance: This is more complex because the timing of ESO recognition (credit to shareholders equity) occurs later than when the ESO tax deduction is taken. As a result, subtracting the reported ESO tax benefit from current tax expense is generally not useful for finding the current tax burden and taxable income. Firms with a valuation allowance do not credit shareholders equity until the allowance is removed, potentially years after the tax deduction. To accurately estimate the firm’s current tax burden and taxable income, one needs the actual ESO tax deduction for the period, not the amount recognized for financial reporting. ESO realization, the actual cash savings, occurs later when the NOL carry forward is utilized. For such firms, the stock option note in the financial statements can be used to estimate the ESO tax deduction. For example, the sources estimate Microsoft’s 2000 ESO tax deduction by multiplying the number of exercised options by the difference between the estimated stock price and the weighted average exercise price, which provides a more reliable estimate than the amount disclosed in shareholders’ equity.

As stock based compensation continues to play a pivotal role in attracting and retaining talent, understanding its true cost remains critical for equity analysts and stakeholders alike. The evolution from APB 25 to SFAS 123(R) marks a shift toward greater transparency and comparability, aligning accounting standards with economic reality. However, the use of complex valuation models, the variability in tax treatments and the timing differences between financial reporting and cash flow implications mean that even now, careful scrutiny is essential. A thorough grasp of stock option accounting helps not only in evaluating earnings quality but also in assessing a company’s long term value creation and governance practices.