Comprehensive Guide to Income Tax and Lease Accounting Principles in U.S. GAAP

Book Income

Income that a company reports on its Income Statement prepared in accordance with U.S. GAAP.

Taxable Income

Income that a company reports on its income tax return based on the Tax Code.

Income Tax Expense

The amount reported on the U.S. GAAP Income Statement.

Income Tax Payable

The actual amount the company owes to the IRS for the current period.

Statutory Tax Rate

The legally imposed tax rate in a given taxing jurisdiction (e.g., 21% in the U.S. under the TCJA).

Effective Tax Rate (ETR)

Income tax expense divided by book income before taxes.

Permanent Differences (Scope Differences)

Items or transactions that will only appear in either book income or taxable income, but never in both.

Temporary Differences (Timing Differences)

Items that appear in both book income and taxable income, but at different times.

Impact of Permanent Differences on ETR

They DO cause the effective tax rate to differ from the statutory tax rate.

Impact of Temporary Differences on ETR

They DO NOT cause the effective tax rate to differ from the statutory tax rate; they only affect the timing of recognition.

Municipal Bond Interest

An example of a permanent difference; included in book income but never taxable.

Asset and Liability Method

The balance sheet approach companies use to account for temporary differences by focusing on the differences between book carrying values and tax bases.

Deferred Tax Liability (DTL)

Represents additional income taxes payable that will be due in future years (less tax paid today, more paid later).

Deferred Tax Asset (DTA)

Represents a future reduction in income taxes payable (more tax paid today, tax savings later).

DTA Scenario: Tax Basis of Asset > Book Basis

Example: Inventory that a firm writes down for obsolescence under U.S. GAAP, but not for tax purposes.

DTL Scenario: Book Basis of Asset > Tax Basis

Example: Installment sales (revenue recognized for books now, taxed when cash is collected later) or using accelerated depreciation for tax.

DTA Scenario: Book Basis of Liability > Tax Basis

Example: Warranty liability (estimated and expensed for books now, but not deducted for tax until actual repairs take place).

Valuation Allowance

A contra-asset account used to reduce a deferred tax asset to its net realizable value if it is "more likely than not" that some portion will not be realized.

Income Statement Impact of Valuation Allowance

Increasing the valuation allowance increases Income Tax Expense, thereby decreasing Net Income.

Four Sources of Taxable Income (for DTA Realizability)

1. Future reversals of existing taxable temporary differences. 2. Future taxable income. 3. Taxable income in prior carryback years. 4. Tax-planning strategies.

Tax Cuts and Jobs Act (TCJA) of 2017

Decreased the corporate income tax rate from 35% to 21%.

TCJA Impact on Net Operating Losses (NOLs)

Eliminates NOL carrybacks, allows indefinite NOL carryforwards, and limits the use of carryforwards to 80% of taxable income in any given year

Lease

A contract that gives the lessee the right to control and use an asset legally owned by the lessor for a specified period of time in return for periodic payments.

Lessee

The party that is granted the right to use the underlying asset in a lease agreement.

Lessor

The party that legally owns the underlying asset and grants the right to use it to another party.

ASC 842

The 2016 lease accounting standard that requires lessees to report almost all leased assets and lease-related liabilities directly on their balance sheets.

Advantages of Leasing (for Lessee)

100% financing with little/no money down, transferring the risk of obsolescence to the lessor, higher business/financial flexibility, and potential tax benefits.

Disadvantages of Leasing (for Lessee)

The overall cost of the asset is generally higher than purchasing it, and the lessee does not own the asset at the end of the term.

Lessee Lease Classifications

Operating Leases and Finance Leases.

Lessor Lease Classifications

Operating Leases and Sales-Type Leases. (Direct Financing Leases exist but are omitted for this exam).

Group I Criteria Overview

Five criteria used to classify a lease. If ANY ONE is met, the lessee classifies it as a Finance Lease and the lessor as a Sales-Type Lease. If NONE are met, it is an Operating Lease.

Group I Criteria #1: Transfer of Ownership

The lease agreement transfers legal ownership of the asset to the lessee by the end of the lease term.

Group I Criteria #2: Purchase Option

The lease contains an option to purchase the asset that the lessee is "reasonably certain" to exercise (e.g., a heavily discounted bargain purchase option).

Group I Criteria #3: Economic Life Test

The lease term covers a "major part" of the remaining economic life of the asset (in practice, >= 75% of the asset's life).

Group I Criteria #4: Present Value Test

The present value of the lease payments plus any lessee-guaranteed residual value equals or exceeds "substantially all" of the asset's fair value (in practice, >= 90% of the fair value).

Group I Criteria #5: Alternative Use

The leased asset is highly specialized and is expected to have no alternative use to the lessor at the end of the lease term.

Implicit Interest Rate

The interest rate the lessor uses to price the lease. The lessee MUST use this rate to calculate the present value of payments IF it is known.

Incremental Borrowing Rate

The rate of interest the lessee would have to pay to borrow funds to buy the asset. The lessee uses this rate ONLY IF the lessor's implicit rate is unknown.

Lease Liability

A liability recorded by the lessee at lease commencement, calculated as the Present Value (PV) of all remaining lease payments.

Right-of-Use (ROU) Asset

An asset recorded on the lessee's balance sheet representing the right to control the leased item.

Initial Measurement of ROU Asset (Formula)

Lease Liability + Prepayments made before commencement + Initial Direct Costs - Lease Incentives Received.

Initial Direct Costs

Incremental costs incurred by the lessee (like legal fees or commissions) to execute the lease. They are added to the ROU Asset.

Lease Incentives

Payments made by the lessor to the lessee to encourage them to sign. They decrease the initial measurement of the ROU Asset.

Lessee Accounting: Operating Lease (Initial Entry)

Debit: Right-of-Use Asset; Credit: Lease Liability. (Both measured at PV of lease payments).

Lessee Accounting: Operating Lease (Subsequent Entries)

The lessee records a single, straight-line "Lease Expense" each period. The ROU Asset is reduced by plugging the difference between the total straight-line lease expense and the calculated interest expense.

Lessee Accounting: Finance Lease (Initial Entry)

Debit: Right-of-Use Asset; Credit: Lease Liability. (Exactly the same as an operating lease).

Lessee Accounting: Finance Lease (Subsequent Entries)

The lessee records TWO separate expenses: "Amortization Expense" (amortizing the ROU asset on a straight-line basis) AND "Interest Expense" (using the effective interest method on the lease liability).

Effective Interest Method (Liability Amortization Formula)

Beginning Lease Liability Balance × Discount Rate = Interest Expense. (Total Lease Payment - Interest Expense = Principal Reduction).

Straight-Line Amortization Formula (Finance Lease ROU Asset)

Initial ROU Asset Value ÷ Lease Term = Annual Amortization Expense.

Stock-Based Compensation

Compensation that includes stock options and stock awards, whose value is tied to a company's stock price to motivate employees.

Employee Stock Options

Financial instruments that give employees the right (but not the obligation) to purchase shares of the company's stock directly from the company at a fixed price over a specified period.

Exercise Price (Strike Price)

The fixed cash amount an employee must pay to acquire a share of common stock based on the terms of the stock option plan.

Vesting Period (Service Period)

The required time an employee must remain with the company before they are allowed to exercise their options.

Expiration Date

The point in time at which the employee can no longer exercise their stock options.

"In-the-Money" Option

Occurs when the market stock price is greater than the option's exercise (strike) price.

"Out-of-the-Money" Option

Occurs when the market stock price is less than the option's exercise (strike) price.

Option Pricing Models

Mathematical models (like the Black-Scholes model) used to estimate the fair value of options on the grant date.

Equity-Classified Awards

Awards where the employee has the right to receive equity shares (e.g., standard stock options).

Liability-Classified Awards

Awards where the employee typically receives cash based on the value of the shares.

Stock Appreciation Rights (SARs)

A liability-classified form of compensation where the employee receives a cash bonus equal to the amount of the increase in share value over a pre-established price.

Restricted Stock Awards

Shares of stock awarded to an employee that cannot be sold or transferred until a specific vesting period is complete.

Employee Stock Purchase Plans (ESPPs)

Plans that permit all employees to buy company shares directly, often at a slight discount and without brokerage fees.

Forfeitures

Occurs when an employee leaves the company before the compensation awards vest, causing the benefits to be lost.

Pension Plan

A plan that provides retirement income to former employees.

Contributory Pension Plan

A plan that requires employees to fund some or all of their pension benefit costs.

Non-Contributory Pension Plan

A plan where the employer is entirely responsible for funding the total cost of the pension plan.

Pension Trust

A separate legal entity that accumulates the pension fund assets and makes the actual payments to retirees.

Defined Contribution (DC) Plan

A plan where the employer contributes a fixed amount each period; the employee determines the investments and bears all the risk of loss.

Defined Benefit (DB) Plan

A plan that specifies a predetermined amount of benefits the employee will receive in retirement; the employer bears all the investment risk.

Defined Benefit Formula

Percentage × Salary Level × Credits for Years of Service.

Pension Plan Assets

The fair value of the assets in the pension trust intended to cover future pension obligations.

Projected Benefit Obligation (PBO)

The estimated pension liability based on years of service provided by all employees, calculated using projected future salary levels.

Funded Status

The difference between the Pension Plan Assets and the Projected Benefit Obligation (PBO) reported on the Balance Sheet.

Overfunded Pension Plan

Occurs when Pension Plan Assets are greater than the PBO. Reported as a Net Pension Asset.

Underfunded Pension Plan

Occurs when the PBO is greater than the Pension Plan Assets. Reported as a Net Pension Liability.

Other Post-Employment Benefits (OPEBs)

Non-pension benefits provided to employees in retirement, such as health care, dental, and life insurance.

Basic EPS

A measure of firm performance indicating the amount of Net Income (after dividends owed to preferred stockholders) for each share of common stock actually outstanding.

Diluted EPS

A "worst case scenario" metric capturing the reduction in Basic EPS that would occur if potentially dilutive securities are assumed to have been converted.

Basic EPS Formula

(Net Income - Preferred Dividends) / Weighted Average Number of Common Shares Outstanding.

Cumulative Preferred Dividends (EPS Rule)

Include the dividend requirements for the current year in the Basic EPS numerator, even if they were not declared.

Noncumulative Preferred Dividends (EPS Rule)

Include only the preferred dividends that were actually declared in the current year in the Basic EPS numerator.

Retroactive Assumption

The rule that assumes a stock split or stock dividend occurs at the beginning of the year for shares already outstanding, or at the time of issuance for new shares.

Simple Capital Structure

Occurs when a firm does not have potentially dilutive securities (securities that could become common shares through conversion or exercise).

Complex Capital Structure

Occurs when a firm has potentially dilutive securities (like convertible debt, convertible preferred stock, or options) that could reduce EPS.

If-Converted Assumption

A method applied to convertible debt and preferred stock; assumes conversion into common shares occurs at the beginning of the year or the issue date, adjusting both the EPS numerator and denominator.

If-Converted Numerator Adjustment (Convertible Debt)

Add back the avoided interest expense, net of tax, to Net Income.

If-Converted Numerator Adjustment (Convertible Preferred Stock)

Add back the avoided preferred dividends to Net Income; there is no tax impact because preferred dividends are not tax-deductible.

Treasury Stock Method

A method applied to options and warrants; assumes the firm uses the cash proceeds from the hypothetical exercise of in-the-money options to repurchase treasury stock at the average market price.

Treasury Stock Method Incremental Shares

Total shares issued on assumed exercise minus the number of treasury shares assumed to be repurchased. This amount is added to the Diluted EPS denominator.

In-the-Money Options (EPS Impact)

These options result in positive incremental shares under the Treasury Stock Method and are dilutive to EPS.

Out-of-the-Money Options (EPS Impact)

These options result in negative incremental shares under the Treasury Stock Method, making them antidilutive, so they must be strictly ignored for Diluted EPS computations.

Antidilutive Effect

Occurs if assuming the conversion of securities or exercise of options causes EPS to increase or loss per share to decrease.

Incremental Income Per Share Effect

A calculation used to test if a convertible security is antidilutive; if this per-share effect is higher than Basic EPS, the security is antidilutive and must be excluded.

Cash Equivalents

Short-term, highly liquid investments with original maturities of three months or less when acquired.

Statement of Cash Flows Purpose

To provide information about a firm's cash receipts and cash payments from its operating, investing, and financing activities over a period of time.

Operating Activities

Cash flows that relate to the production and delivery of goods and services; essentially the cash effects of transactions that determine Net Income.

Investing Activities

Cash flows that relate to the acquisition and disposal of noncurrent assets and short-term investments not classified as cash equivalents.

Financing Activities

Cash flows that relate to the cash receipts and payments of principal from short- and long-term debt and equity financing.

Dividends Paid

Classified as a Financing Activity cash outflow.

Dividends and Interest Received

Classified as Operating Activity cash inflows.