Build the earnings bridge carefully
EBIT stands for earnings before interest and taxes. EBITDA adds depreciation and amortization back to EBIT. In the SEC's discussion of these measures, earnings starts from net income as presented under GAAP. Both are non-GAAP measures in this reporting context; adjusted versions can remove additional items and need distinct labels.
A full bridge
Revenue is $500. COGS excluding D&A is $200; other operating costs excluding D&A are $120; D&A is $40. Operating income is $140. Add $15 nonoperating income, subtract $10 interest and $36.25 assumed tax: net income is $108.75. EBIT is 108.75 + 36.25 + 10 = $155. EBITDA is 155 + 40 = $195.
Operating income is not EBITDA. In this example it also differs from EBIT because EBIT includes the $15 nonoperating income. Some businesses have no such difference, but equality in one case is not a universal definition. Always reconcile the actual presentation.
Depreciation can be embedded in COGS, SG&A or other expense lines. If operating income already includes it, adding it back once may help build an EBITDA measure. Starting from costs that already exclude D&A and adding it again would overstate earnings.
An acronym is a starting point, not a data definition. Check interest income versus interest expense, continuing versus total operations, noncontrolling interests and adjustment scope when moving among statements, issuer metrics and data feeds.