Free M&A Accretion / Dilution Lab

Q: What is M&A EPS accretion and dilution?

Accretion occurs when a combined company's pro-forma Earnings Per Share (EPS) exceeds the acquirer's standalone EPS. Dilution occurs when pro-forma EPS drops below standalone EPS due to share dilution or high financing interest costs.

Q: How does financing mix (cash, debt, stock) affect deal accretion?

Cash is usually most accretive because foregone interest is low after taxes. Debt is accretive if after-tax borrowing cost is lower than target earnings yield. Stock increases share count, creating dilution if acquirer P/E is lower than target transaction P/E.

Q: What is the all-stock M&A P/E rule of thumb?

In an all-stock transaction with zero synergies, if the Acquirer's P/E multiple is higher than the Target's Effective Transaction P/E multiple (including premium), the deal is naturally accretive; if lower, it is dilutive.

Q: How do you calculate breakeven synergies in an M&A deal?

Breakeven Synergies = [ (Standalone Acquirer EPS × Pro-Forma Combined Shares) − (Acquirer NI + Target NI − After-Tax Financing Drag) ] ÷ (1 − Tax Rate). It represents the minimum cost savings needed to prevent EPS dilution.

Q: Can I export M&A accretion schedules and sensitivity tables to CSV?

Yes. You can export complete consideration mixes, pro-forma share counts, EPS delta, after-tax financing drag, and synergy sensitivity matrices as a UTF-8 CSV spreadsheet with formula injection defense or print an executive investment committee summary.

Q: Is this tool certified investment banking or fairness opinion advice?

No. This tool provides educational corporate finance and M&A modeling simulations for business training without certified investment banking, legal, or fairness opinion guarantees.

Step 1: Acquirer & Target Valuation

Standalone Financials & Deal Structure

Acquirer Standalone Financials

Share Price ($)

Shares (M)

Net Income ($M)

Standalone EPS = $3.00, P/E = 20.0x

Target Standalone Financials

Share Price ($)

Shares (M)

Net Income ($M)

Standalone EPS = $2.00, P/E = 15.0x

Transaction Terms & Consideration Financing Mix

Offer Premium (%)

% Cash

% New Debt

% Acquirer Stock

Foregone Cash Rate (%)

Borrowing Debt Rate (%)

Corporate Tax Rate (%)

Annual Pre-Tax Synergies

Cost Synergies ($M/yr)

Revenue Synergies ($M/yr)

Revenue Margin (%)

EPS Accretion / (Dilution)

+5.24%

$3.16 (+ $0.16)

Pro-Forma Net Income

$166.5M

52.7M shares (+2.7M new)

Transaction Equity Value

$540.0M

Offer: $36.00 / share

Breakeven Synergies (0% Accr)

$0.0M

Required pre-tax savings

Step 2: Synergies Sensitivity Matrix

EPS Accretion Across Synergies Tiers

Evaluates pro-forma earnings and accretion under varying levels of realized operational and commercial synergies.

Pre-Tax Synergies	Pro-Forma NI ($M)	Pro-Forma EPS ($)	EPS Delta ($)	Accretion / Dilution (%)

M&A Deal Mechanics

Understanding Accretion, Dilution & Financing Mix

M&A accretion/dilution analysis determines whether an acquisition will boost or depress the buyer's earnings per share (EPS), influencing public shareholder approval and board confidence.

Financing Considerations: Cash and debt financing avoid share dilution but create interest expense drag. Stock financing eliminates debt burden but increases share count.
All-Stock Rule of Thumb: If Acquirer P/E > Target Effective Deal P/E, the acquisition is accretive. If Acquirer P/E < Target Deal P/E, the deal is dilutive without synergies.
Breakeven Synergies: The exact dollar threshold of pre-tax cost cuts needed to avoid EPS dilution for the buyer.

Compare standalone corporate valuations in the Business Valuation Lab.

Corporate Finance Formulas

Essential M&A accretion formulas

Pro-Forma NI = Acq NI + Target NI + After-Tax Synergies − After-Tax Financing Drag

New Shares Issued = Stock Consideration ÷ Acquirer Share Price

Pro-Forma EPS = Pro-Forma Net Income ÷ (Acq Shares + New Shares)

Accretion % = [ (Pro-Forma EPS − Acq EPS) ÷ Acq EPS ] × 100%

Breakeven Synergies = [ (Acq EPS × Pro-Forma Shares) − Pro-Forma NI_before_syn ] ÷ (1 − Tax Rate)

Calculate weighted cost of capital in the WACC Lab.

FAQ

M&A accretion dilution questions

What is M&A EPS accretion and dilution?