What it means
The test is simple in principle. Combine the two companies' earnings, adjust for financing costs and any new shares issued to pay for the deal, then compare the resulting earnings per share against the acquirer's earnings per share on its own.
The concept carries weight because earnings per share drives share prices, executive incentives and market commentary. Boards and bankers therefore analyse accretion and dilution early, and a deal that looks dilutive in year one often needs a clear explanation of when it turns accretive.
How a deal is paid for often matters more than the price. Paying with cash or cheap debt tends to be accretive because no new shares are created, while paying with equity is more likely to be dilutive when the acquirer's shares are valued more highly relative to earnings than the target's.
The important warning is that accretive does not mean value-creating. An acquirer can overpay wildly for a low-quality business and still report higher earnings per share by funding the purchase with debt, which is why accretion analysis should always sit alongside returns on invested capital and a realistic view of the risks.
The word is also used more loosely outside deal-making. A finance director might call a pricing change, a debt repayment or a disposal of a loss-making division accretive, meaning simply that it lifts earnings per share relative to doing nothing.
Timing is the last thing to check. Most accretion models are quoted for the first full year after completion, so a deal described as accretive may exclude integration costs, restructuring charges and the amortisation of intangible assets recognised on acquisition.
Asking which year the figure refers to, and what has been left out of it, is usually the most revealing question in the room.
In practice
Real-world examples.
Example
A listed software group buys a smaller rival for cash held on deposit earning 3%. The target's profit far exceeds the interest given up, so the deal is immediately accretive and the announcement highlights the fact.
Example
A packaging manufacturer issues shares to buy a competitor trading on a much higher earnings multiple. The deal is dilutive for two years, and management defends it by pointing to $18,000,000 of expected annual cost savings by year three.
Example
A company announces a share buyback funded from surplus cash. Because the share count falls while profit is broadly unchanged, earnings per share rise and the buyback is described as accretive.
Formula
Calculation
Pro forma EPS = combined net income / combined share count. The deal is accretive if pro forma EPS is higher than the acquirer's standalone EPS.
An acquirer earns net income of $40,000,000 and has 20,000,000 shares in issue, so its standalone earnings per share are $40,000,000 / 20,000,000 = $2.00.
It agrees to buy a target that earns $6,000,000, paying with 2,000,000 newly issued shares. Combined net income becomes $46,000,000 and the combined share count becomes 22,000,000, giving pro forma earnings per share of $46,000,000 / 22,000,000 = $2.09.
Since $2.09 is above the standalone $2.00, the deal is accretive by about 4.5%. The break-even point is 23,000,000 shares, because $46,000,000 / 23,000,000 = $2.00 exactly, so issuing any more than 3,000,000 shares would make the same acquisition dilutive.Case study
Seen in the real world.
Halden Industrial Group is an invented listed manufacturer used only to illustrate the idea. Halden earned $52,000,000 with 26,000,000 shares in issue, giving earnings per share of $2.00, and it wanted to buy a components maker earning $8,000,000.
The board considered two structures. Paying entirely in shares required issuing 5,000,000 new shares, producing $60,000,000 of combined earnings across 31,000,000 shares, or roughly $1.94 per share, which was mildly dilutive. Funding the same purchase with debt costing $3,000,000 a year after tax left earnings of $57,000,000 across the original 26,000,000 shares, or roughly $2.19, which was clearly accretive.
Halden chose the debt structure and the market reacted well, but its finance director insisted the board minutes record a second calculation: the deal only earned more than its cost of capital if the components maker held its margins. Two years later a raw material shock cut those margins, and a deal that remained technically accretive was quietly recognised as value-neutral at best.
Watch out
Common mistakes.
- Treating an accretive deal as automatically a good deal, when accretion can be manufactured simply by funding a purchase with cheap debt.
- Ignoring the financing cost in the calculation, which flatters cash and debt-funded deals and overstates the accretion.
- Assuming the accretion figure includes synergies, when most first-pass calculations deliberately exclude them until they are contracted or credible.
Questions
People also ask.
What is the opposite of accretive?
Dilutive, meaning the transaction reduces earnings per share relative to the standalone position.
Can a deal be dilutive in year one and accretive later?
Yes, and it is common where integration costs land early while cost savings and revenue benefits build over two or three years.
Does accretive apply only to acquisitions?
No, share buybacks, debt repayment and even asset disposals are described as accretive when they raise earnings per share.
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