What it means
Every acquisition changes two things at the same time: the profit the buyer reports and the cost of whatever it used to pay for the deal, whether that is new shares, borrowed money or cash. An acquisition is accretive when the extra profit brought in outruns the extra shares issued or the extra interest incurred.
Boards care about this because earnings per share is the headline number analysts quote, and it often sits inside management bonus schemes as well. A deal that adds to earnings in its first full year is far easier to defend to shareholders than one that dents earnings for three years before it starts paying off.
The mechanics are simpler than they sound when a deal is paid for in shares. If the buyer's own shares trade on a higher price-to-earnings multiple than the multiple it pays for the target, the deal will be accretive, and if it pays more than its own multiple, the deal dilutes.
The rule works because the buyer is swapping expensive share currency for comparatively cheap earnings. Cash and debt-funded deals follow the same logic with different plumbing.
Here the test is whether the target's profit after tax is bigger than the after-tax interest cost on the money borrowed to buy it. A target earning $8,000,000 a year funded by debt costing $5,000,000 a year after tax adds to earnings from the first day.
The nuance worth remembering is that accretion is not the same thing as value creation. A buyer can overpay for a weak, low-multiple business, report higher earnings per share and still destroy value over the following five years.
Careful analysts read accretion alongside return on invested capital and a hard look at whether the promised cost savings are believable.
In practice
Real-world examples.
Example
A listed software group trading on 28 times earnings buys a small profitable data business on 12 times earnings using its own shares. Even before any cost savings, the arithmetic of swapping a high multiple for a low one lifts group earnings per share, and the chief financial officer highlights the accretion in the deal announcement.
Example
A regional bakery chain borrows $20,000,000 at 6% to buy a competitor earning $2,400,000 after tax. The after-tax interest cost is well below the earnings acquired, so the deal is accretive from the first full year, and the finance director sets a covenant test to check the position quarterly.
Example
A facilities management firm agrees to buy a cleaning contractor and models the deal as slightly dilutive in year one because of $3,000,000 of integration costs. It becomes accretive in year two once duplicate depot costs are removed, so the board approves it on the strength of the second-year picture rather than the first.
Formula
Calculation
Combined earnings per share = (Acquirer net income + Target net income + after-tax synergies - after-tax financing cost) / (Acquirer shares + new shares issued). The deal is accretive when combined earnings per share is higher than the acquirer's standalone figure.
Take an acquirer earning net income of $40,000,000 on 20,000,000 shares. Its standalone earnings per share is $40,000,000 / 20,000,000 = $2.00. Its shares trade at $30, which is a price-to-earnings multiple of $30 / $2.00 = 15 times.
It buys a target that earns $15,000,000 a year for a price of $150,000,000, paid entirely in new shares issued at $30 each, so it issues $150,000,000 / $30 = 5,000,000 new shares. The price paid is a multiple of $150,000,000 / $15,000,000 = 10 times earnings, cheaper than the buyer's own 15 times.
Combined net income is $40,000,000 + $15,000,000 = $55,000,000, and the combined share count is 20,000,000 + 5,000,000 = 25,000,000. Combined earnings per share is $55,000,000 / 25,000,000 = $2.20. That is $0.20 more than the standalone $2.00, making the deal 10% accretive, because $0.20 / $2.00 = 10%.Case study
Seen in the real world.
In this illustrative example, Larkfield Logistics is a fictional listed distribution group earning $40,000,000 a year on 20,000,000 shares, giving earnings per share of $2.00. Its shares are well rated at $30, and the board is under pressure to put that valuation to work rather than sit on it.
Larkfield agrees to buy Copperline Couriers, an invented family-owned parcel business earning $15,000,000 a year, for $150,000,000 in Larkfield shares. Because Copperline is priced at 10 times earnings while Larkfield trades at 15 times, combined earnings per share rises to $2.20, and the announcement leads with the 10% accretion.
The finance director is careful in the analyst call to separate two questions. The deal is accretive on day one, but whether it creates value depends on Copperline keeping its two largest contracts through the transition, so the board sets a retention target and reports against it for the following two years.
Watch out
Common mistakes.
- Treating accretion as proof that a deal is a good one, when a buyer can overpay for a poor business and still report higher earnings per share.
- Forgetting to include the shares issued to fund the deal, which flatters the calculation and turns a dilutive transaction into an apparently accretive one.
- Loading assumed cost savings into year one when integration work realistically takes eighteen months to deliver them.
Questions
People also ask.
Is an accretive deal always financed with shares?
No, cash and debt deals can be accretive too, and the test then is whether the acquired profit exceeds the after-tax cost of the borrowing.
What makes a deal dilutive?
Paying a higher earnings multiple than the buyer's own, issuing too many shares, or carrying financing and integration costs that outweigh the profit acquired.
How long should accretion be measured over?
Most boards look at the first full financial year after completion and the following two years, because one-off deal costs distort the opening period.
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