Financial Due Diligence Checklist: What to Examine Before Buying a Company

Financial due diligence tests what a business earns, how earnings become cash, what funding it needs and which obligations a buyer may inherit. Focus on evidence and transaction consequences. It is broader than checking a headline EBITDA figure, and it does not replace legal, commercial, tax or operational diligence.

Establish the records and their reliability

Request audited accounts, management accounts, trial balances, bank information, budgets and supporting transaction detail for relevant periods. Reconcile management reporting to statutory accounts and explain differences. Review reporting delays, manual journals, policy changes and the quality of underlying controls.

ICAEW's financial-due-diligence guideline describes FDD as support for informed investment decisions, investigation of financial risks and valuation. An audit and an acquisition diligence exercise have different objectives; an audit opinion does not answer every purchase-price question.

Define the transaction perimeter early. Subsidiaries, shared services, owner-controlled property and related-party arrangements can affect the earnings actually acquired. A carve-out may require costs that were previously absorbed elsewhere in a group. Ask what the business will cost to operate independently after closing.

Rebuild sustainable earnings

Bridge reported profit to proposed adjusted EBITDA, documenting every addition and subtraction. Test whether “one-off” expenses recur, whether owner compensation is commercially reasonable, and whether unusual income will continue. Use invoices, contracts and operating evidence rather than accepting labels.

In a hypothetical case, reported EBITDA is ₹30 crore. The seller adds back ₹4 crore restructuring expenses, claiming adjusted EBITDA ₹34 crore. If ₹2 crore relates to activities repeated every year, a buyer might accept only ₹2 crore of the adjustment, producing ₹32 crore before other findings.

Investigate revenue recognition, returns, rebates, cut-off and customer concentration. Rising sales near period-end may reflect genuine demand or timing choices. Match receivables and subsequent collections to the relevant invoices. A promising growth chart is less persuasive if customers are not paying.

Analyse working capital and cash conversion

Review monthly receivables, inventory and payables rather than relying solely on year-end balances. Examine ageing, obsolete stock, disputed receivables and supplier payment changes. Seasonal peaks can create funding requirements hidden by an unusually low closing balance.

A normalised working-capital target is a negotiated transaction mechanism based on agreed definitions. It should reflect the operating resources required for the acquired business, not automatically the average of whatever accounts are available. Avoid including cash or debt-like items twice across price adjustments.

Suppose hypothetical receivables and inventory together rise ₹12 crore while payables rise ₹5 crore. The increase in operating working capital is ₹7 crore, a cash use under this simplified definition. A business can report higher EBITDA while this cash absorption reduces its ability to service acquisition debt.

Identify obligations and translate findings into terms

Prepare a schedule of debt, cash, leases, guarantees, unpaid taxes, accrued financing costs and other potentially debt-like items. Classification depends on the deal definitions and economic substance. Not every liability belongs in net debt, and some off-balance-sheet commitments may still matter.

Review capital expenditure for both growth and maintenance. Deferred maintenance can make recent cash flow look strong while creating a post-acquisition funding need. Analyse related-party balances, customer advances and supplier finance with care because contractual settlement and normal operations may point to different price treatment.

For each material finding, show evidence, estimated amount or range, uncertainty, responsible reviewer and proposed consequence. Possible responses include a valuation change, purchase-price adjustment, covenant, warranty, indemnity, additional diligence or rejection of the deal. Do not turn a precise-looking spreadsheet estimate into a claim that uncertainty has disappeared.

CFA Institute's diligence standard stresses a reasonable research basis for investment analysis. Apply that discipline by separating verified records, management assertions and unresolved questions. Finish with a prioritised issues paper, not an unranked checklist. This guide is educational and cannot establish the adequacy of diligence for a particular acquisition.

Quick questions, clear answers

Is due diligence designed to find fraud?

It can reveal inconsistencies or suspicious patterns, but ordinary FDD is not automatically a forensic investigation. Define the engagement scope and escalate specific concerns to appropriate specialists. The absence of a detected issue does not prove that all records or representations are reliable.

Should every seller adjustment be rejected?

No. Some adjustments improve comparability, such as genuinely non-recurring costs or correcting a perimeter mismatch. Test each item consistently and examine contrary evidence. Accepting or rejecting all adjustments mechanically can both distort sustainable earnings.

Why do working-capital definitions matter so much?

They influence how much operating funding must remain with the business at completion and therefore the final price adjustment. Ambiguous definitions can create disputes or double counting. Agree the accounts included, calculation period and treatment of unusual items before relying on the headline target.

About this guide

Aniket Thakur prepared this educational guide from secondary research checked on 22 October 2026. All numerical illustrations are hypothetical unless stated otherwise. No investment product was tested, and no individual financial circumstances were assessed. Read the cited primary material and relevant product documents before acting.