An M&A accountant is the financial and accounting specialist on a transaction — a CPA or transaction-services professional who tests the target's numbers, sets the financial terms that depend on accounting, and handles the post-close accounting for the deal. Where the M&A lawyer owns the contracts, the M&A accountant owns the numbers.
Core role: quality of earnings
The accountant's central deliverable is the quality-of-earnings (QoE) analysis and its QoE report — the deep dive into whether the target's reported earnings are real, sustainable and repeatable. This includes:
- validating Adjusted EBITDA and the add-backs (accepting, questioning or rejecting each);
- analyzing revenue quality, customer concentration and margin trends;
- identifying the run-rate cost base and one-time items; and
- a proof of cash tying earnings to collections.
Because price is usually a multiple of Adjusted EBITDA, the QoE directly drives valuation — every dollar it confirms or disproves is multiplied in the price.
Setting the deal's financial mechanics
Beyond the QoE, the M&A accountant quantifies the items that flow into the definitive agreement:
- Net working-capital target — analyzing the trailing trend to set the "peg" and the post-close true-up.
- Net debt and "debt-like" items — cataloguing what reduces equity value (deferred revenue, accrued bonuses, capital leases, unfunded liabilities).
- Tax structuring — modeling the after-tax outcomes of asset vs stock structures and elections like §338(h)(10), often with tax diligence.
Post-closing work
After the deal closes, the accountant handles the acquisition accounting: the purchase price allocation under asc-805 / ifrs-3 — allocating the price across acquired assets, identifiable intangibles and goodwill — plus the opening balance sheet, the working-capital settlement, and any earn-out accounting.
Not an audit
Importantly, M&A accounting work is investigative and deal-focused, not a statutory audit. A QoE expresses no audit opinion and is not governed by audit standards; it is a forward-looking analysis built for a buyer or seller. (Indeed, independence rules generally keep a company's auditor separate from this transaction-advisory work.)
Brokers, CPAs and the Big Four
The "M&A accountant" spans a range of providers: a local CPA firm for smaller, brokered deals; dedicated transaction-services boutiques; and the Big-Four Transaction Advisory Services (TAS) practices for larger transactions. All do versions of the same core work — QoE, working capital, tax and post-close accounting — scaled to deal size and complexity.
See also
- Quality of earnings — An independent accounting analysis that tests how sustainable, predictable and accurately measured a target's reported earnings are. The QofE is a near-universal pre-LOI deliverable in serious deals.
- Quality of earnings report — The formal deliverable from a quality-of-earnings engagement — a third-party accountant's analysis of a target's reported earnings, normalisation adjustments and revenue and cost trends.
- Working-capital target — A negotiated benchmark — usually a trailing-12-month average — for the level of net working capital the seller is to deliver at closing. Variances above or below trigger a dollar-for-dollar price adjustment.
- Purchase price allocation — The process of assigning an acquisition’s price to the assets and liabilities acquired.
- Transaction advisor — Big-Four (or similar) transaction-advisory practitioner who delivers buy-side or sell-side QoE, financial diligence, tax structuring and integration-readiness work, separate from audit.
- Tax due diligence — The tax-focused workstream of buy-side diligence: federal/state/local income tax exposure, sales-and-use tax, payroll tax, transfer pricing, R&D credits, and the tax history of the target entity.