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Earnings and quality

Pro forma adjustments

Also known as: pro forma EBITDA adjustments, run-rate adjustments, full-year effect

Definition

Pro forma adjustments restate past results as if a known change had been in place for the whole period. Examples are a new senior hire, a price increase, a closed location or an acquired business.

Updated November 2026

Pro forma adjustments, explained simply

Where something changed part-way through the period, the historical figures capture only part of its effect. A pro forma adjustment shows the full-year effect so that the buyer sees the business as it now stands.

Pro forma adjustments rely on judgment about the future, so they attract the most aggressive claims. Negative adjustments are accepted readily; positive ones need strong evidence.

Pro forma adjustments to LTM EBITDA

Illustrative

Alder Creek Manufacturing, $ millions

The two changes net to a $0.05 million reduction in EBITDA.

Common pro forma adjustments

ChangeEffect on EBITDA
New senior hire part-way through the yearDecrease: full-year cost added
Loss-making product line closedIncrease: its losses removed
Price increase part-way through the yearIncrease: if supported by evidence
Lost customerDecrease: its profit removed
Bolt-on acquisitionIncrease: acquired EBITDA added

Worked example

Alder Creek made two changes in the last twelve months. A new CFO was hired in August at $240,000 a year; the LTM period contains two months of cost, so $200,000 is added, reducing EBITDA by $0.20 million. Prices rose 3% from July, and management claims a full-year benefit of $0.30 million. Signed customer contracts support only $0.15 million, which is accepted. Net effect: EBITDA falls by $0.05 million.

Alder Creek Manufacturing, Inc. is a fictional company. All figures are illustrative.

Why it matters in a deal

Pro forma adjustments make results reflect the business as it is today. They are also where the most aggressive claims tend to appear, because they rely on judgment about the future.

Red flags

  • Only positive pro forma adjustments
  • Cost savings claimed but not yet made
  • Revenue from customers who have not signed contracts

Frequently asked questions

What are pro forma adjustments in M&A?
Pro forma adjustments restate past results as if a known change had been in place for the whole period. Examples are a new senior hire, a price increase, a closed location or an acquired business.
Do buyers always accept pro forma adjustments?
Only with strong evidence. Negative adjustments are accepted far more readily than positive ones.
Is pro forma the same as a forecast?
No. Pro forma restates past results for changes that have already happened. A forecast predicts the future.

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