Free ToolsM&A Accretion Dilution Calculator

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M&A Accretion Dilution Calculator for EPS and IC Decks

Model standalone EPS, pro forma EPS, purchase price, stock issuance, financing drag, and near-term deal accretion or dilution before you take an acquisition case into an investment committee, banker discussion, or board review.

Live calculator

Keep the financing mix and target earnings conversion explicit. Those are usually the first items challenged.

Preset

Business Context

A serial acquirer is testing whether a smaller software target still creates near-term EPS accretion after stock consideration, debt draw, and purchase-accounting drag.

Audience

PE deal team, corp dev lead, investment committee

Acquirer Net Income ($m)Use the annualized or next-twelve-month earnings base the market already prices.Acquirer Diluted Shares (m)Use fully diluted shares outstanding, not basic shares.Acquirer Share Price ($)Needed to estimate stock consideration and the current P/E multiple.Target EBITDA ($m)Headline deal EBITDA before financing effects.Purchase EV / EBITDA (x)Use the proposed or discussed transaction multiple.Target Net Debt ($m)Positive for net debt, negative for net cash. This bridges enterprise value to equity purchase price.Target EBIT as % of EBITDAA practical conversion assumption for translating EBITDA into a more earnings-like base.Annual Synergy EBITDA ($m)Use only recurring synergy the team can defend in diligence.Amortization & Integration Drag ($m)Short-term annual drag from purchase accounting, integration, or other recurring near-term EPS pressure.Tax Rate (%)Use the blended effective tax assumption for the pro forma earnings bridge.Debt Financing (%)Percent of equity purchase price funded with new debt.Stock Financing (%)Percent of equity purchase price funded with newly issued acquirer shares.Debt Rate (%)Use the expected annual interest rate on new debt financing.Cash Yield / Foregone Yield (%)Use the opportunity cost on cash used in the deal, if relevant.

Immediate Output

Useful before signup, then ready to convert into a board or IC slide.

Standalone EPS

$1.91

Current earnings per diluted share for the acquirer.

Pro Forma EPS

$1.97

Post-deal EPS after financing drag and new shares issued.

EPS Accretion / Dilution

3.1%

The first-screen answer most boards and bankers ask for.

Equity Purchase Price

$690.0M

Enterprise value less target net debt.

New Shares Issued

4.0m

Only the stock-funded part of the purchase consideration.

Deal Earnings Yield

5.5%

After-tax target plus synergy contribution divided by equity purchase price.

Interpretation

The deal is modestly accretive, which is directionally constructive but not robust. Small changes in financing cost, synergy timing, or purchase-accounting drag can still flip the answer.

Board-Ready Takeaway

Vertical Software Tuck-In implies $1.91 standalone EPS versus $1.97 pro forma EPS, or 3.1% accretion/dilution. Equity purchase price is $690,000,000.0, with 4.0m of new shares issued, $11,773,125.0 of after-tax debt cost, and $38,040,000.0 of after-tax target plus synergy contribution.

Formula and earnings bridge

Keep the logic transparent so the committee can challenge assumptions instead of reverse-engineering the math.

Enterprise value = target EBITDA x purchase EV / EBITDA multiple

Equity purchase price = enterprise value - target net debt

Target after-tax earnings = (target EBITDA x EBIT conversion % + synergy EBITDA - amortization drag) x (1 - tax rate)

Pro forma EPS = (acquirer net income + target after-tax earnings - after-tax financing drag) / (acquirer diluted shares + new shares issued)

Deal price

Enterprise value = $725,000,000.0

Target net debt = $35,000,000.0

Equity purchase price = $690,000,000.0

Funding structure

Debt funding = $241,500,000.0

Stock funding = $207,000,000.0

Cash funding = $241,500,000.0

Earnings contribution

Target standalone after-tax earnings = $36,540,000.0

Synergy after tax = $6,750,000.0

Total after-tax contribution = $38,040,000.0

Per-share impact

New shares issued = 4.0m

Share issuance as % of base = 1.8%

Implied deal P/E = 18.1x

Sensitivity to financing mix

The same deal can look very different depending on whether management funds it with debt, stock, or existing cash.

Case	Debt	Stock	Cash	Pro forma EPS	Accretion / dilution
Current mix	35%	30%	35%	$1.97	3.1%
All debt	100%	0%	0%	$1.93	1.0%
50/50 debt-stock	50%	50%	0%	$1.95	2.0%
All stock	0%	100%	0%	$1.96	2.9%

Current acquirer valuation context

Acquirer market cap

$11.4B

Acquirer current P/E

27.2x

Deck storyline

3.1% EPS accretion/dilution

Open the slide with the EPS answer first. The audience wants to know whether the deal helps or hurts near-term reported earnings before reading the rest of the bridge.

Headline metric strip with standalone EPS versus pro forma EPS.

Deck storyline

4.0m new shares are issued

Separate operating upside from financing structure. Stock issuance, debt cost, and cash usage each move the outcome differently and deserve their own explanation.

Bridge showing debt funding, stock funding, cash funding, and financing drag.

Deck storyline

5.5% deal earnings yield

Tie the purchase price back to target earnings contribution so the committee can judge whether the price is rich, fair, or dependent on aggressive synergy capture.

Purchase price box with earnings yield, implied deal P/E, and synergy note.

Worked example

Default scenario: Vertical Software Tuck-In. Use it as a realistic starting point for a banker, board, or investment committee discussion.

Enterprise value = 58 x 12.5x = $725,000,000.0.

Equity purchase price = enterprise value less $35,000,000.0 of target net debt = $690,000,000.0.

Total after-tax target plus synergy contribution = $38,040,000.0.

Standalone EPS = $1.91, pro forma EPS = $1.97, and accretion/dilution = 3.1%.

How to read the output

Clearly accretive

More than 5%

Usually helpful, but the committee will still ask how much relies on synergy, financing assumptions, or short-lived accounting noise.

Marginally accretive

0% to 5%

Often directionally acceptable, but fragile. Small changes in interest rates, synergy timing, or amortization can flip the answer.

Dilutive

Below 0%

The deal may still be right strategically, but management needs a clear non-EPS rationale and a view on when dilution reverses.

Common mistakes

Treating EBITDA purchase multiple as enough proof without translating the target into earnings available to equity holders.
Ignoring stock issuance and then calling a deal accretive based only on operating synergy.
Leaving purchase-accounting amortization or integration drag out of the short-term EPS math.
Using debt financing assumptions that are inconsistent with current borrowing costs or lender constraints.
Presenting a mildly accretive case as decisive when the result disappears under a more conservative synergy or tax assumption.

Typical use cases

Investment committee reviews that need a fast EPS answer before the full merger model is finished.
Board discussions comparing debt-funded versus stock-funded acquisition structures.
Corp dev screening where the team knows purchase multiple, target EBITDA, and a rough synergy view.
Banker and investor-relations prep when management needs a cleaner narrative around accretive versus dilutive optics.

What this helps answer

Does the deal help or hurt near-term EPS?

How much does stock issuance contribute to the dilution risk?

Is the price supportable relative to the target's after-tax earnings contribution?

What it does not replace

A full merger model with fees, financing schedule, and debt amortization.

Diligence-backed synergy timing and one-time dis-synergy analysis.

Longer-term ROIC, IRR, or value-creation modeling across multiple scenarios.

Key assumptions

Target EBITDA is translated into earnings with a simple EBIT conversion assumption.

Financing drag includes debt cost and optional cash opportunity cost only.

Purchase-accounting and integration effects are modeled as one annual drag line.

Related resources

EBITDA Multiple Valuation Calculator

Pressure-test the entry multiple and valuation bridge before debating accretion.

M&A Synergy Estimate Calculator

Model synergy value, timing, and payback before you rely on it inside the EPS bridge.

Investment Committee Memo to Deck Generator

Turn the EPS math into an approval-oriented memo and slide outline.

Private Equity Investment Committee Deck Guide

See how to present underwriting, valuation, and downside logic in a real IC deck.

Valuation Presentation Guide

Use this when the accretion page needs to connect to the wider valuation narrative.

M&A Due Diligence Presentation Guide

Keep the EPS answer anchored to diligence, risk, and execution reality.

FAQ

What does this accretion dilution calculator estimate?

It estimates standalone EPS, pro forma EPS, EPS accretion or dilution, purchase price, new shares issued, after-tax financing drag, and the after-tax earnings contribution from the target plus synergies.

Why does the page ask for share price?

Share price determines how many new shares must be issued when part of the deal is financed with stock. That share count is one of the main drivers of EPS dilution.

Why use EBIT conversion instead of pure EBITDA?

EPS is driven by earnings available to equity holders, not EBITDA alone. The EBIT conversion assumption is a practical shortcut for translating target EBITDA into a more earnings-like base before tax, synergy, and amortization effects.

Does this replace a full merger model?

No. It is a fast decision tool for board, banker, and investment committee discussions. A full model should still cover working capital, financing fees, transaction fees, one-time tax items, debt amortization, and scenario depth.

When can a dilutive deal still make sense?

When management can justify the trade-off through strategic control, a stronger long-term synergy path, access to a new market, or a broader value-creation plan that matters more than near-term reported EPS.

Turn the EPS bridge into an investment committee slide

Once the deal math is directionally right, XLSlides can turn it into an executive-ready acquisition page with an answer-first headline, financing bridge, valuation caveats, and the exact decision ask for the committee or board.

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