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Blog · Territory, capacity and quota planning · Finance and FP&A teams

Mergers and acquisitions financial modeling: key inputs

An acquisition financial workbook connects operating assumptions, funding and projected cash. Work through a combined-company example, change customer retention and check that each schedule reconciles.

The short answerMergers and acquisitions financial modeling combines buyer and target financial information with purchase funding, operating changes and cash assumptions. Finance teams use the workbook to compare outcomes under supplied scenarios. Revenue retention, cost savings, integration spending, interest, taxes and working capital must connect consistently, with funding sources matching uses and projected cash reconciling to the operating schedules.

Mergers and acquisitions financial modeling connects buyer and target forecasts to purchase funding and projected cash. The workbook should identify post-close assumptions and prove that the operating, financing and cash schedules reconcile.

Define the acquisition question and its owner

Finance needs separate schedules for combined earnings, transaction funding and cash after operating and financing requirements.

CFA Institute's corporate restructuring reading describes pro forma statements as estimated financial statements incorporating a restructuring. Transaction effects depend on the circumstances.

Corporate development supplies transaction terms; operating leaders own retention and integration assumptions. Treasury owns debt terms, while accounting and tax specialists supply their adjustments. FP&A coordinates the schedules. The broader financial modeling workflow covers assumption ownership.

Prepare the files before combining them

Bring buyer and target monthly statements, customer revenue and cost schedules. Add closing, funding and integration assumptions. Identify the entity, period, account, currency and scenario in each table.

Align accounting definitions and reporting periods, remove relevant intercompany amounts and identify nonrecurring items. The financial statement analysis for mergers and acquisitions guide covers that preparation.

Keep purchase accounting and tax allocation separate. For qualifying business asset sales, the IRS explains the residual method for allocating consideration. Bring specialist-approved depreciation, amortization and tax effects into the forecast; tax allocation does not replace acquisition accounting.

A worked US acquisition scenario

An illustrative US distributor acquires another distributor at the projection year's start. These supplied planning assumptions use a full post-close year, no intercompany transactions and USD. They do not establish transaction value.

Input Buyer (USD unless %) Target or transaction (USD unless %)
Standalone annual revenue (USD) 20,000,000 8,000,000
Revenue retained after closing 100.0% 95.0%
Variable operating costs or rate 14,000,000 65.0% of retained target revenue
Fixed operating costs including depreciation (USD) 2,500,000 1,600,000
Realized annual cost savings (USD) — 600,000
Integration operating spending (USD) — 450,000
Existing buyer debt (USD) 1,000,000 —
Existing debt interest rate 6.0% —
New acquisition debt (USD) — 6,000,000
New debt interest rate — 8.0%
Assumed cash tax rate on pretax income — 25.0%

Integration spending is expensed and paid during the year. Principal is repaid at year-end, so opening debt determines interest. The assumed tax rate applies to pretax income; actual transactions need separate tax schedules.

Build operating earnings first

Step Calculation Result (USD)
Retained target revenue 8,000,000 × 95.0% 7,600,000
Combined revenue 20,000,000 + 7,600,000 27,600,000
Target variable costs 7,600,000 × 65.0% 4,940,000
Combined variable costs 14,000,000 + 4,940,000 18,940,000
Combined contribution margin 27,600,000 − 18,940,000 8,660,000
Fixed costs before savings 2,500,000 + 1,600,000 4,100,000
Operating earnings 8,660,000 − 4,100,000 + 600,000 − 450,000 4,710,000
Interest 1,000,000 × 6.0% + 6,000,000 × 8.0% 540,000
Pretax income 4,710,000 − 540,000 4,170,000
Cash tax assumption 4,170,000 × 25.0% 1,042,500
Net income 4,170,000 − 1,042,500 3,127,500

Savings are added once, after standalone fixed costs. Integration spending is subtracted separately. This makes the gross benefit and the cost of achieving it visible instead of hiding both in a net adjustment.

Check funding and operating cash separately

Closing use Amount (USD) Funding source Amount (USD)
Purchase consideration 10,000,000 New acquisition debt 6,000,000
Transaction fees 200,000 Buyer cash contribution 4,500,000
Additional cash retained in business 300,000 — —
Total uses: 10,000,000 + 200,000 + 300,000 10,500,000 Total sources: 6,000,000 + 4,500,000 10,500,000

That zero funding gap is a closing check. The following table measures cash generated during the subsequent operating year, excluding the closing payment.

Post-close cash step Calculation Amount (USD)
Net income From operating schedule 3,127,500
Add depreciation included in fixed costs Supplied combined depreciation schedule 700,000
Less capital spending Supplied capital budget −900,000
Less increase in operating working capital Supplied balance sheet forecast −350,000
Less year-end debt principal payment Supplied debt schedule −600,000
Cash generated after debt principal 3,127,500 + 700,000 − 900,000 − 350,000 − 600,000 1,977,500

This bridge assumes no other noncash or timing adjustments. Depreciation must match fixed costs. The working capital guide explains the separate balance sheet forecast for receivables, inventory and payables.

Change retention and hold the other inputs fixed

Reduce target retention to 90.0%. Keep the target variable cost rate, fixed costs, savings, integration spending, funding and cash adjustments unchanged.

Measure Retention 95.0% (USD) Retention 90.0% (USD) Change (USD)
Target revenue 7,600,000 7,200,000 −400,000
Target variable costs 4,940,000 4,680,000 −260,000
Combined operating earnings 4,710,000 4,570,000 −140,000
Pretax income 4,170,000 4,030,000 −140,000
Cash tax assumption 1,042,500 1,007,500 −35,000
Net income 3,127,500 3,022,500 −105,000
Cash generated after debt principal 1,977,500 1,872,500 −105,000

The earnings proof is $400,000 of lost revenue less $260,000 of avoided variable costs: a $140,000 pretax decline. The cash difference equals the after-tax earnings difference only because the other cash assumptions were deliberately held constant. A fuller downside case should revisit collections, inventory and integration timing.

Where it goes wrong

  • Double-counting savings. Removing costs from the target forecast and adding the same synergy again overstates earnings.
  • Mixing close and operating periods. A midyear acquisition needs partial-year operating results and date-specific funding assumptions.
  • Confusing profit with available cash. Purchase consideration, principal and working capital do not disappear because earnings improve.
  • Blending accounting and operating assumptions. Keep purchase accounting, tax adjustments and execution assumptions separately traceable.
  • Changing several inputs without labels. Preserve a controlled sensitivity before creating a combined downside scenario. Different financial model types answer different questions; no single output replaces those checks.

Review your acquisition scenarios in Covirage

Bring the prepared acquisition workbook with scenario labels, operating assumptions and funding and cash schedules. Covirage maps the columns, and its tools compute and check the supplied figures; the external AI model explains the results with every figure traced to its rows. Create a free Covirage account in about a minute, then set up your business and bring a sample of your own data.

See Covirage for finance teams reviewing acquisition assumptions.

Questions people ask

What inputs are needed for an acquisition financial model?

Start with consistent buyer and target statements, purchase terms, funding assumptions and the expected closing date. Add revenue retention, cost savings, integration spending, capital expenditure and working capital. Identify the owner and evidence for every assumption, and distinguish operating projections from accounting and tax adjustments.

How should acquisition synergies be included?

Record each proposed saving or revenue benefit separately, with an owner, start date and implementation cost. Show gross benefits and the spending needed to achieve them. Check that a saving has not already reduced the target's standalone cost forecast before adding it to the combined case.

Is higher projected profit enough to justify an acquisition?

No. Profit does not show the purchase funding requirement, debt principal, capital spending or collection timing. Decision makers also need valuation, execution and risk assessments. An operating scenario workbook helps test assumptions, but its projected earnings alone do not establish that a transaction should proceed.

What is a useful downside scenario for an acquisition?

Choose an assumption that matters to the transaction, such as customer retention, delayed savings or integration spending. First change that input alone to show its effect. Then prepare a separate combined downside case where appropriate, keeping its changed assumptions clearly identified.