M&A & Deal Analysis

Taxonomy v2.1 — June 2026·5 subdomains

Deal analysis is where several accounting and financing conventions have to hold at once. Purchase accounting, the financing waterfall, conformed policies, and the share-count bridge each have a correct treatment and a model that gets four of five right still produces a number a partner cannot sign. The failures here are structural: synthesis errors across sections, not slips inside one.

MNA·01

Purchase price allocation

Omits the deferred tax liability on the asset step-up in purchase accounting

MechanismA taxable step-up that is not deductible creates a deferred tax liability equal to the step-up times the tax rate, which in turn increases goodwill.

ConsequenceUnderstates goodwill and overstates net identifiable assets — the entire balance-sheet plug is wrong.

StructuralCritical
Treats the whole purchase premium as goodwill without identifying intangibles

MechanismIdentifiable intangibles — customer relationships, technology, trade names — must be recognized at fair value before the residual becomes goodwill.

ConsequenceMisstates amortization and the goodwill subject to impairment testing.

StructuralMaterial
MNA·02

LBO construction

Builds the equity bridge without rolling transaction fees, OID, and minimum cash to closing

MechanismSources and uses must fund advisory and financing fees, original-issue discount, and a minimum operating cash balance at close.

ConsequenceUnderstates required equity and overstates the return.

StructuralCritical
Amortizes capitalized financing fees through the P&L but omits them from the cash-flow add-back

MechanismFinancing-fee amortization is a non-cash expense added back in the cash sweep; treating it as cash drag understates debt paydown.

ConsequenceDistorts the deleveraging path and exit equity.

StructuralMaterial
MNA·03

Accretion / dilution

Compares pro forma EPS without conforming acquirer and target accounting policies

MechanismAccretion is meaningful only once the target is restated to the acquirer's policies and new intangible amortization and financing cost are included.

ConsequenceA deal that reads accretive can be dilutive after conforming adjustments.

StructuralMaterial
Funds a cash acquisition without charging foregone interest income or new interest expense

MechanismCash used loses its interest income and new debt carries interest — both hit pro forma EPS.

ConsequenceOverstates accretion.

ArithmeticMaterial
MNA·04

Merger consideration & structure

Treats a fixed-exchange-ratio deal as if the consideration value were fixed at signing

MechanismA fixed exchange ratio floats with the acquirer's share price; the dollar value to the target moves until close.

ConsequenceMisstates the premium and the collar economics.

StructuralMaterial
Ignores collar mechanics that cap or floor the exchange ratio

MechanismCollars convert a fixed-value region into a fixed-ratio region — or the reverse — beyond defined price bounds.

ConsequenceMisprices the consideration in the tails.

DisclosureMinor
MNA·05

Synergies & pro forma

Capitalizes recurring cost synergies into perpetuity without netting the cost to achieve

MechanismSynergies carry one-time integration costs and a realization ramp, both of which must be modeled before crediting steady-state run-rate.

ConsequenceOverstates deal value and IRR.

StructuralMaterial
Double-counts revenue synergies already embedded in the standalone target plan

MechanismSynergy credit must be incremental to each standalone plan.

ConsequenceInflates pro forma growth.

HallucinationMinor

The full bank contains additional items not published here. The taxonomy is a living artifact, derived from practice — versioned, dated, and never claimed to be exhaustive.