Cheat Sheets & Quick References: Formulas, Adjustments, and Checks

The formula card

For a calculation that begins with operating income, the compact formula is:

Operating income is sometimes presented as EBIT, but financial statements do not always use these labels in precisely the same way. Before using a line called “operating income,” check the statement’s accounting policies and the placement of unusual or non-operating items. The goal is to begin with earnings before interest and income taxes, then add back depreciation and amortization that have already reduced that earnings figure.

If starting with net income instead, use a different bridge:

Do not add interest and taxes to the operating-income formula as though they were missing components. Operating income is ordinarily stated before those costs; adding them again would overstate EBITDA. Conversely, net income is after interest and tax expense, so those items must be restored when using that starting point.

A worked bridge from statement lines

Consider a small manufacturer reporting the following annual figures. The amounts below are illustrative, but the reconciliation follows the same logic an analyst would use with actual accounts.

The calculation is $120,000 + $18,000 + $7,000 = $145,000. The depreciation and amortization amounts should tie to the company’s records, not simply to a management estimate. Depending on the accounting presentation, these costs may appear as separate lines, be included within cost of goods sold or operating expenses, or be disclosed in a note. Trace them to the underlying schedules and ensure they have not already been excluded from the starting earnings figure.

Suppose the manufacturer also incurred $4,000 in legal fees for a single, documented lawsuit that has concluded. If the cost reduced operating income and is genuinely non-recurring, a proposed adjusted EBITDA calculation may be:

The final line is not self-validating. A recurring contract dispute, routine legal advice, or a continuing compliance burden does not become a one-time cost merely because the company describes it as unusual. The $4,000 needs a source—such as invoices, a general-ledger entry, and a concise explanation of the event—and a clear account of why similar expense is not expected to recur.

The adjustment checklist: item, amount, evidence

Use three fields for every proposed adjustment: what it is, how much it is, and what proves it. A fourth field—whether it is genuinely appropriate—keeps the schedule from becoming a list of whatever management would prefer to exclude.

• Identify the item. Describe the expense in plain language and name the account or statement line where it was recorded.
• Quantify it. Show the amount and calculation. If only part of an invoice qualifies, explain the allocation.
• Attach evidence. Retain invoices, payroll records, contracts, board approvals, or other support appropriate to the claim.
• Test recurrence and business purpose. Ask whether the expense is tied to normal operations and whether it is likely to continue.
• Check for overlap. Confirm the item is not already excluded from operating income or included in another add-back.
• State the judgment. Label the item as accepted, rejected, or requiring further support, with a short reason.

This format is useful in a classroom exercise, a lender package, or a transaction discussion because it separates arithmetic from judgment. A number can be calculated exactly while the decision to add it back remains contestable. Transparent schedules preserve that distinction instead of presenting a discretionary adjustment as if it were an audited fact.

Common add-backs under a closer lens

Non-recurring legal or advisory costs

A discrete legal matter may qualify for review when it is completed, clearly exceptional, and supported by records. In the example above, the $4,000 relates to a concluded lawsuit. By contrast, ordinary legal retainers, recurring contract reviews, and a steady stream of employment advice are costs of running the business. A business that faces a new “one-time” dispute every year should expect scrutiny of the pattern, not just the label on each invoice.

Owner compensation above a market level

Owner-related adjustments require a replacement-cost calculation, not a blanket claim that an owner’s pay is discretionary. Suppose an owner-manager received $140,000 in salary, while evidence for the relevant location and responsibilities supports a replacement executive salary of $105,000. The potential adjustment is $35,000—not $140,000—because the company still needs someone to perform the work. Support might include comparable compensation data, a job description, and details of benefits or duties that affect the comparison.

Do not confuse salary with distributions. A distribution recorded outside operating expenses has not reduced EBITDA and cannot be added back a second time. First establish where the payment appears in the accounts; then calculate only the excess expense, if any, that is actually included in the earnings base.

Non-cash expenses beyond depreciation and amortization

Depreciation and amortization are built into the standard EBITDA bridge. Other non-cash charges—such as some share-based compensation, impairment charges, or provisions—need separate analysis. “Non-cash” does not automatically mean “irrelevant.” Share-based compensation can represent a real cost to owners through dilution, and an impairment may signal that an asset or business line has lost economic value. Identify the accounting charge, examine the underlying event, and disclose the treatment rather than quietly placing every non-cash item in an add-back column.

Start-up, relocation, and restructuring costs

Opening a new site, relocating a facility, or restructuring operations may create costs outside the company’s steady-state pattern. The adjustment should be limited to the expenses actually incurred and supported by a defined project. If a move cost $12,000, for example, separate temporary moving invoices from ongoing rent, duplicated staffing, or recurring maintenance at the new location. A project’s existence does not make every related expense temporary.

Revenue shortfalls and hoped-for savings

Lost revenue, forecast synergies, and projected cost savings are not ordinary expense add-backs. They do not restore a recorded charge to earnings; they introduce a hypothetical alternative result. If management expects $30,000 of savings after consolidating two facilities, that forecast belongs in a clearly labeled scenario analysis, with assumptions and timing, rather than in historical adjusted EBITDA as though the savings have already occurred.

A fast set of calculation checks

Before circulating an EBITDA figure, run these checks in order. Each one catches a different kind of error; none is a substitute for the others.

1. Confirm the period. Match operating income, depreciation, and amortization to the same month, quarter, or year. Do not combine a year-end income figure with a trailing-twelve-month expense schedule without explaining the period bridge.
2. Confirm the starting line. Record whether the calculation begins with operating income, EBIT, or net income. State the source and avoid mixing definitions.
3. Reconcile depreciation and amortization. Tie the amounts to the ledger, fixed-asset schedule, intangible-asset schedule, or financial-statement disclosure. Check for amounts embedded in other expense lines.
4. Check sign and direction. Adding back an expense should increase EBITDA. A credit, reversal, or recovery may require different treatment; do not mechanically add every entry bearing a familiar account name.
5. Test for duplication. If a starting metric already excludes a charge, adding it back again overstates the result. The same expense must not appear twice in the adjustment schedule.
6. Separate reported and adjusted results. Present calculated EBITDA before discretionary adjustments, then show each adjustment individually and the resulting adjusted figure.
7. Recalculate independently. Sum the bridge and adjustment schedule with a second check, preferably against the source workbook or ledger totals.
8. Label the measure. Indicate whether the figure is EBITDA, adjusted EBITDA, or a forecast. Those labels communicate different levels of judgment.

For the manufacturer, the basic tie-out is $120,000 + $18,000 + $7,000 = $145,000. The adjusted tie-out is $145,000 + $4,000 = $149,000. If the schedule instead reports $154,000, the extra $5,000 must have a visible, explainable source; it should never appear as a balancing figure.

Net-income cross-check

A second route through the same statement can help reveal an omitted or duplicated item. Suppose the manufacturer’s income statement shows net income of $90,000, interest expense of $20,000, income tax expense of $10,000, depreciation of $18,000, and amortization of $7,000. Then:

This agrees with the operating-income bridge. The agreement is a useful control, but only if the accounts are classified consistently. For instance, a gain on an asset sale, foreign-exchange result, or other non-operating item may sit between operating income and net income. Investigate differences rather than forcing the two methods to match through unsupported adjustments.

Quick-reference template

Copy this compact structure into a worksheet or analysis memo. It makes the calculation readable without concealing its assumptions.

What the number can—and cannot—tell you

EBITDA is a performance measure, not a direct statement of cash generated or cash available to spend. It does not deduct capital expenditure, working-capital investment, debt principal payments, or many other cash demands. A factory can report EBITDA of $145,000 while facing substantial machinery replacement costs; the EBITDA figure does not make those costs disappear.

It is also sensitive to choices about adjustments. Reported EBITDA of $145,000 is the result of a defined bridge in this example. Adjusted EBITDA of $149,000 depends additionally on whether the $4,000 legal cost qualifies under the stated criteria. Keep both figures visible, describe the judgment, and use comparable definitions when evaluating another period or business.

For investors and lenders, consistency matters as much as presentation. A company that includes certain expenses in adjusted EBITDA this year but excludes them next year may show apparent improvement without a corresponding change in underlying economics. Keep an adjustment log across periods and explain changes in policy or treatment. The aim is not to make EBITDA look attractive; it is to make the calculation reproducible.

Pocket version

• Operating-income route: operating income + depreciation + amortization.
• Net-income route: net income + interest + income tax + depreciation + amortization.
• Worked result: $120,000 + $18,000 + $7,000 = $145,000 EBITDA.
• Illustrative adjustment: add $4,000 only when a documented, genuinely non-recurring legal cost qualifies; adjusted EBITDA becomes $149,000.
• Adjustment standard: identify the item, calculate the amount, retain evidence, test recurrence, and check for duplication.
• Final discipline: label reported EBITDA and adjusted EBITDA separately, specify the period, and show the bridge back to source lines.

A short formula deserves a meticulous audit trail. When each figure can be traced, each adjustment can be challenged, and the same method can be repeated next period, EBITDA becomes a useful analytical reference rather than a number dressed for presentation.