Financial Due Diligence: Knowing Exactly What You Are Buying or Investing In

What due diligence is for

Before buying a business, investing in a company or entering a major partnership, you need confidence that the numbers are real, sustainable and complete. Due diligence is the structured investigation that provides this confidence: reviewing financial, tax, legal, commercial and operational information to confirm value and identify risks.

Financial due diligence focuses on the numbers: earnings, cash flows, working capital, debt, tax exposures and the reliability of projections. This guide explains how our due diligence & financial analysis service supports investors, acquirers, lenders and sellers. Transactions also require legal and tax advice tailored to the situation.

When due diligence is needed

The depth of review should match the size of the transaction and the risks involved.

• Acquiring a company or business unit
• Investing equity in a private company
• Lending significant amounts to a business
• Forming a joint venture or strategic partnership
• Preparing a business for sale (vendor due diligence)
• Evaluating a franchise or distribution opportunity

Defining the scope

A due diligence engagement starts by agreeing scope: periods covered, key areas, materiality thresholds, access to information and management, timelines and reporting format. Scope is shaped by the buyer’s or investor’s concerns, the target’s business model and the structure of the proposed deal.

Coordinating with legal, tax, commercial and technical advisers avoids gaps and duplication.

Quality of earnings

Reported profit can be affected by one-off items, accounting choices, owner-related expenses, related-party transactions at non-market terms and timing differences. Quality of earnings analysis adjusts reported EBITDA to show normalised, sustainable earnings: what the business can be expected to earn going forward.

Because valuations are often based on a multiple of earnings, even modest adjustments can change the price significantly. Our business valuation guide explains how earnings feed into value.

Revenue and customer analysis

Revenue analysis examines trends, mix by product, customer and geography, pricing, recurring versus one-off revenue, contract terms, revenue recognition and seasonality. Customer analysis looks at concentration, retention, churn, contract renewals and credit quality.

High dependence on a few customers, declining retention or revenue recognised early are common risks. Where needed, commercial due diligence, including customer interviews and market analysis from our research team, tests whether projected growth is realistic.

Working capital

Working capital, receivables plus inventory minus payables, varies through the year and can be managed to look favourable at a particular date. Due diligence analyses normal working capital levels over time, quality of receivables, inventory valuation and obsolescence, and supplier payment patterns.

Many deals include a working capital adjustment: if working capital at completion is below an agreed normal level, the price is reduced. Defining that normal level carefully protects buyers from paying for a business that needs immediate cash injection.

Net debt and debt-like items

The price for equity usually equals enterprise value minus net debt. Beyond obvious borrowings, due diligence identifies debt-like items: unpaid taxes, overdue statutory dues, deferred payments, provisions for known liabilities, employee obligations such as gratuity, customer advances and similar items that will consume cash after the deal.

Each item identified and agreed as debt-like reduces the equity price, so this area often has a large financial impact.

Tax and compliance review

Tax exposures can transfer with a business. Reviews cover income tax positions and assessments, GST compliance and reconciliations, TDS defaults, transfer pricing for related parties, pending notices and litigation, and statutory compliance such as PF and ESI. Unpaid or disputed amounts may need indemnities, escrow or price adjustments. Company filings and director details can be checked on the Ministry of Corporate Affairs portal, and GST registration status on the GST portal.

Our GST, TDS and payroll guides describe common compliance gaps that due diligence uncovers.

Cash flow and capital expenditure

Profit does not always convert into cash. Due diligence compares earnings with operating cash flow, examines capital expenditure history and needs, and identifies deferred maintenance or investment that a buyer will have to fund. A business that has underinvested in equipment or systems may need significant spending soon after acquisition.

Reviewing projections

Buyers and investors often pay for future growth, so projections deserve close scrutiny. Due diligence tests assumptions against historical performance, pipeline, market data and capacity, identifies optimistic elements and models sensitivities. The aim is not to replace management’s plan but to understand how realistic it is and what drives the outcome. Our financial modelling guide explains how projections are built and tested.

Common red flags

Red flags do not always mean walking away; they may lead to price adjustments, specific protections or conditions before completion.

• Revenue growth not matched by cash collections
• Heavy dependence on one or two customers
• Unexplained changes in accounting policies
• Large or unusual related-party transactions
• Inconsistencies between books, tax returns and GST returns
• Rising receivables or inventory without explanation
• Pending tax notices or statutory defaults
• Management unable to provide basic information promptly

From findings to deal terms

Due diligence findings feed directly into negotiations: price adjustments for earnings or debt findings, working capital targets, specific indemnities for identified exposures, escrows or holdbacks, warranties, conditions precedent such as resolving compliance gaps, and earn-outs where future performance is uncertain. Our corporate finance advisory guide explains deal structuring.

Vendor due diligence

Sellers can commission due diligence on their own business before a sale or fundraising. Vendor due diligence identifies issues early so they can be fixed or explained, gives the seller control of the narrative, speeds up buyer reviews and reduces the risk of price reductions late in the process.

Even without a formal report, preparing a clean data room and addressing known issues in advance strengthens a seller’s position.

An example: an acquisition review

A company plans to acquire a smaller competitor at a multiple of reported EBITDA. Due diligence finds that EBITDA includes a one-time consultancy contract, the owner’s family members are paid above market rates, gratuity liabilities are not provided for, and a GST notice is pending. Receivables have also risen sharply in the last quarter before the deal.

Normalised EBITDA is lower than reported, net debt increases after including gratuity and the potential GST liability, and the working capital target is set based on the twelve-month average rather than the quarter-end figure. The buyer renegotiates the price, secures an indemnity for the GST matter and proceeds with a clearer understanding of the business.

People, contracts and operations

Financial due diligence often touches areas beyond the numbers: key employee arrangements and retention risks, dependence on the founder, major customer and supplier contracts, change-of-control clauses, leases and operational systems. These factors affect whether projected earnings can be delivered after the transaction, and they are usually reviewed together with legal and operational advisers.

IT, data and cyber risks

Modern businesses depend on systems and data. Due diligence increasingly covers technology: the reliability of financial systems, data quality, software licences, security practices and any past incidents. A target with weak controls or outdated systems may need investment after the deal. Our cybersecurity guide explains common risks.

Post-deal value creation

Due diligence findings are also a roadmap for after the deal: improving reporting, fixing compliance gaps, strengthening controls, optimising working capital and integrating systems. Acquirers who act on these findings early protect their investment and capture value faster.

Due diligence for lenders

Lenders providing significant loans, especially for acquisitions or projects, often commission their own financial review: cash flow sustainability, debt capacity, security, covenants and downside scenarios. Businesses seeking such finance benefit from preparing the same information in advance, which speeds up approvals and improves terms. Our business finance guide covers lender expectations.

Information requests and data rooms

Due diligence begins with an information request list covering financial statements, management accounts, ledgers, contracts, tax filings, payroll records, debt agreements and more. A well-organised data room, indexed and complete, speeds up the process and reduces repeated questions. Tracking requests and responses in a shared log keeps both sides aligned on what remains outstanding.

Choosing a due diligence provider

Look for experience in your sector and deal size, independence, clear scoping and fees, the ability to work quickly without sacrificing depth, and reports that connect findings to their financial and contractual implications. Coordination with legal and tax advisers, and support during negotiations, adds significant value.

Timelines and practical tips

Due diligence timelines depend heavily on how quickly information is provided. Agreeing a clear request list, a single coordinator on each side and regular status calls keeps work moving. Sellers who prepare information in advance, and buyers who focus on the most important risks first, shorten the process without compromising quality.

Common due diligence mistakes

Read our business valuation guide, or discuss a transaction with us.

• Scope too narrow for the risks involved
• Relying only on management summaries without testing data
• Ignoring working capital and debt-like items
• Not connecting findings to price and contract terms
• Rushing to meet deal deadlines
• Sellers waiting for buyers to find problems

Frequently asked questions

• Do you provide vendor due diligence for sellers?

  Yes. Sellers can review their own business before a sale to address issues early and present information confidently.

• How long does financial due diligence take?

  Typically three to six weeks, depending on the target’s size, complexity and how quickly information is provided.

• Can due diligence findings change the deal price?

  Often, yes. Findings on earnings quality, debt-like items and working capital frequently lead to price adjustments, warranties or specific conditions.

• Do you review projections?

  Yes. We test assumptions against history, pipeline and market data, and model sensitivities.

• What happens if serious issues are found?

  Findings may lead to price changes, indemnities, escrow, conditions before completion or, sometimes, a decision not to proceed.

• Do you help after the deal?

  Yes. We support integration, reporting improvements and resolving issues identified during due diligence.

• What is financial due diligence?

  A structured review of a business’s financial information to confirm earnings, cash flows, working capital, debt and risks before a transaction.

• What is quality of earnings?

  Analysis that adjusts reported profit for one-off, non-market and accounting items to show sustainable earnings.

• How long does due diligence take?

  Typically three to six weeks, depending on business size, information availability and scope.

• What is a working capital adjustment?

  A price adjustment if working capital at completion differs from an agreed normal level, protecting buyers from cash shortfalls.

• What are debt-like items?

  Obligations that will consume cash after the deal, such as unpaid taxes, deferred payments, provisions and employee liabilities, often deducted from the price.

• What is vendor due diligence?

  Due diligence commissioned by sellers on their own business before a sale, to identify and address issues early.

• Do you review tax and compliance?

  Yes. We review income tax, GST, TDS and statutory compliance, highlighting exposures and pending matters.

• Can due diligence reduce the price we pay?

  Findings often lead to price adjustments, specific protections or conditions that reflect the actual risks and earnings.

• Do you work with lawyers and other advisers?

  Yes. Financial due diligence is coordinated with legal, tax and commercial reviews.

• Is the process confidential?

  Yes. All work is conducted under confidentiality agreements with controlled access to information.

• Do you support small investments too?

  Yes. Scope can be scaled to the size and risk of the transaction.

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