Open almost any quarterly corporate earnings release and you will often see two very different bottom-line numbers: a statutory GAAP net loss on one page and millions of dollars in positive adjusted EBITDA at the top of the press release. Net income is a company’s standardized bottom-line profit after subtracting every operating cost, interest payment, tax bill, depreciation charge, and amortization expense, according to the Corporate Finance Institute (2025). Adjusted EBITDA is a customized non-GAAP metric that starts with net income, adds back interest, taxes, depreciation, and amortization, and then strips out additional expenses management treats as one-time, non-operating, or non-cash (U.S. Securities and Exchange Commission, 2022; Windsor Drake, 2026).
What does net income measure on an income statement?
Net income is the statutory profit or loss left over for shareholders at the bottom of the income statement after a business pays all recognized expenses for the reporting period (Corporate Finance Institute, 2025; Shopify, 2026). Starting from total revenue, the calculation deducts cost of goods sold (COGS), selling, general, and administrative (SG&A) expenses, depreciation of physical equipment, amortization of intangible assets, debt interest, and income taxes (Corporate Finance Institute, 2025).
In the United States, net income is strictly governed by Generally Accepted Accounting Principles (GAAP) set by the Financial Accounting Standards Board (Corporate Finance Institute, 2025; Shopify, 2026). Because every public company follows the same accounting rulebook to calculate net income, the figure flows directly into retained earnings on the balance sheet and forms the basis for Earnings Per Share (EPS) and the Price-to-Earnings (P/E) valuation ratio (Corporate Finance Institute, 2025; Shopify, 2026).
Why do corporate earnings reports show both net income and adjusted EBITDA?
Before getting to the adjusted version, standard EBITDA stands for Earnings Before Interest, Taxes, Depreciation, and Amortization, where the U.S. Securities and Exchange Commission (SEC) defines “earnings” specifically as GAAP net income in its SEC non-GAAP guidance (last updated December 13, 2022). Analysts use standard EBITDA to compare core operating efficiency between companies that carry different debt loads (interest), operate in different tax jurisdictions (taxes), or write off past equipment purchases and acquisitions on different schedules (depreciation and amortization) (Corporate Finance Institute, 2025; Shopify, 2026).
Under SEC Compliance and Disclosure Interpretations (Question 103.01, 2022), any earnings measure that removes or adds back items beyond those four standard components cannot simply be called EBITDA and must carry a distinct title such as Adjusted EBITDA (SEC, 2022; KPMG, 2022). Management teams report adjusted EBITDA alongside net income to show what they consider normal, repeatable operating performance after removing unusual or non-cash charges (Acquiry, 2026; Windsor Drake, 2026).
Common adjustments that separate adjusted EBITDA from standard EBITDA and net income include:
- Stock-based compensation paid to employees and executives in equity rather than cash (Financial Reporting Hub, 2025; Finrep, 2026).
- Restructuring charges such as severance packages or facility closure costs (Financial Reporting Hub, 2025; Windsor Drake, 2026).
- One-time legal settlements, regulatory fines, or dispute costs (Windsor Drake, 2026; Finrep, 2026).
- Acquisition and integration expenses incurred during a merger or buyout (Financial Reporting Hub, 2025; Windsor Drake, 2026).
- Above-market owner compensation or personal expenses run through a privately held business before a sale (Acquiry, 2026; Windsor Drake, 2026).
How does the math work from net income to adjusted EBITDA?
To see how the same company can report widely different figures on the same day, start with the numerical baseline from the Corporate Finance Institute (2025) and extend it with a typical non-GAAP adjustment from a Windsor Drake analysis (2026). Suppose a manufacturing business posts $5,000,000 in annual revenue with the following expenses:
| Line Item | Amount (USD) | How It Is Treated |
|---|---|---|
| Total Revenue | $5,000,000 | Top-line sales (CFI, 2025) |
| Cost of Goods Sold (COGS) | -$2,000,000 | Deducted in all metrics (CFI, 2025) |
| Operating Expenses (SG&A) | -$1,000,000 | Deducted in Net Income and standard EBITDA (CFI, 2025) |
| Depreciation and Amortization | -$200,000 | Deducted in Net Income; added back in EBITDA (CFI, 2025) |
| Interest Expense | -$100,000 | Deducted in Net Income; added back in EBITDA (CFI, 2025) |
| Income Taxes | -$150,000 | Deducted in Net Income; added back in EBITDA (CFI, 2025) |
| GAAP Net Income | $1,550,000 | Statutory bottom line (CFI, 2025) |
| Standard EBITDA | $2,000,000 | Net Income ($1,550,000) + Interest ($100,000) + Taxes ($150,000) + D&A ($200,000) (CFI, 2025) |
| Documented One-Time Add-Backs | +$500,000 | Permitted non-recurring adjustments added to EBITDA (Windsor Drake, 2026) |
| Adjusted EBITDA | $2,500,000 | Standard EBITDA ($2,000,000) + Add-Backs ($500,000) (Windsor Drake, 2026) |
In mergers and acquisitions, that gap directly changes what a buyer might pay. When a private company is valued at a 6x Adjusted EBITDA multiple, a documented $500,000 add-back increases the calculated enterprise value by $3,000,000 (Windsor Drake, 2026). Institutional lenders also monitor how debt-to-EBITDA ratios shift when management adds back expenses, and prospective buyers routinely test every adjustment against actual cash flow during a quality-of-earnings review (Acquiry, 2026; Windsor Drake, 2026).
How do US SEC rules and international IFRS 18 rules differ?
How companies are allowed to present adjusted EBITDA depends on the accounting jurisdiction where they file their financial reports.
In the United States, public companies must follow SEC Regulation G rules (17 CFR 244.100–102) for all public disclosures and Regulation S-K Item 10(e) (17 CFR 229.10(e)) for formal SEC filings (Finrep, 2026; KPMG, 2022). Under these US rules:
- Companies must present the most directly comparable GAAP measure with equal or greater prominence, meaning an earnings release headline cannot highlight Adjusted EBITDA ahead of GAAP net income (SEC, 2022; Finrep, 2026).
- Under SEC C&DI Question 103.02 (2022), when EBIT or EBITDA is presented as a performance measure, it must be reconciled directly to GAAP net income rather than GAAP operating income (SEC, 2022; Ernst & Young, 2023).
- Companies must include a line-by-line quantitative reconciliation table (often called an EBITDA bridge) showing every adjustment between GAAP net income and Adjusted EBITDA (SEC, 2022; Finrep, 2026).
- Non-GAAP metrics like Adjusted EBITDA are barred from appearing on the face of GAAP financial statements or in the audited footnotes in US filings, and they can never be reported on a per-share basis (SEC, 2022; Finrep, 2026).
Outside the United States, over 140 jurisdictions follow International Financial Reporting Standards (IFRS) set by the International Accounting Standards Board (IASB). Under the IASB’s IFRS 18 reporting rules (issued in April 2024 and effective for annual reporting periods beginning on or after January 1, 2027, with 2026 as the comparative restated period), metrics such as Adjusted EBITDA used in public communications are classified as Management-Defined Performance Measures (MPMs) (Baker Tilly, 2026; Botminds, 2026). Unlike US GAAP rules that keep non-GAAP figures out of the audited financial statements, IFRS 18 requires international filers to disclose MPMs inside a single audited note to the financial statements, reconcile each metric to the most directly comparable IFRS subtotal, and disclose both the income tax effect and the non-controlling interest effect for every adjustment (Baker Tilly, 2026; Botminds, 2026).
What are the most common misconceptions when comparing the two metrics?
The biggest mistake investors make is treating EBITDA or adjusted EBITDA as actual cash flow (Acquiry, 2026; Shopify, 2026). Although adding back depreciation and amortization removes non-cash accounting charges for past equipment purchases, both metrics completely ignore current cash spent on capital expenditures (CapEx) to maintain or replace aging machinery, as well as working capital swings such as cash tied up in unsold inventory or unpaid customer invoices (Acquiry, 2026; Shopify, 2026).
A second misconception is assuming adjusted EBITDA means the same thing at two competing companies (Windsor Drake, 2026). Because there is no universal accounting rule defining which add-backs are legitimate, one company might only remove a one-time factory closure cost while a competitor strips out recurring executive stock compensation and routine software transition expenses (Financial Reporting Hub, 2025; Windsor Drake, 2026). Under SEC C&DI Question 100.01 (2022), excluding normal, recurring, cash operating expenses necessary to operate a business can make a non-GAAP measure misleading and trigger an SEC comment letter (SEC, 2022; Finrep, 2026).
This guide provides general financial information and is not personal investment, tax, or accounting advice. Before making investment decisions or valuing a business, review the full audited financial statements and consult a licensed financial advisor or Certified Public Accountant (CPA).
Frequently asked questions
Can a company report positive adjusted EBITDA while posting a GAAP net loss?
Yes. Because GAAP net income deducts debt interest, taxes, depreciation, amortization, and non-cash or one-off charges like stock-based compensation and restructuring costs, a company with heavy debt service or large equipment write-offs can record a net loss on its income statement while reporting positive adjusted EBITDA (Shopify, 2026; Financial Reporting Hub, 2025).
Why are public companies prohibited from reporting adjusted EBITDA per share?
Under US SEC Compliance and Disclosure Interpretations (Questions 102.05 and 103.01, 2022), public companies cannot present EBIT, EBITDA, or non-GAAP liquidity measures on a per-share basis because doing so can make cash-flow proxies look like a replacement for GAAP Earnings Per Share (SEC, 2022).
Which metric is used for the P/E ratio versus enterprise value multiples?
The Price-to-Earnings (P/E) ratio uses GAAP net income (divided by share count to get EPS) to value a company’s equity after debt and taxes, whereas Enterprise Value-to-EBITDA (EV/EBITDA) uses EBITDA or Adjusted EBITDA to value the entire business independent of its capital structure (Corporate Finance Institute, 2025; Shopify, 2026).