Due Diligence Checklist

100+ items to verify before buying a business in India

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How to use this checklist

Work through each section systematically during your due diligence period. Request documents early, track what you've received, and note any concerns. For a detailed explanation of each area, see our Due Diligence Guide.

CategoryItemsPrimary Reviewer
Financial17 itemsCA + Buyer
Tax Compliance14 itemsCA
Legal19 itemsLawyer + Buyer
Operational13 itemsBuyer
Customer10 itemsBuyer
HR15 itemsLawyer + CA

💰Financial Due Diligence

Income Tax Returns (3-5 years)
GST Returns - GSTR-1 (2+ years)
GST Returns - GSTR-3B (2+ years)
Bank statements - all accounts (3 years)
Revenue reconciliation (books vs bank vs GST)
Monthly revenue breakdown (24 months)
Revenue by customer (top 20 accounts)
Revenue by product/service line
Accounts receivable aging report
Bad debt history and write-offs
Profit & Loss statements (3 years)
Monthly P&L breakdown (24 months)
Gross margin analysis by product/service
Operating expense breakdown
Owner compensation and perks detail
Related party transactions
SDE/EBITDA calculation and normalization

📋Tax Compliance

GST registration active and current
All GSTR-1 returns filed
All GSTR-3B returns filed
GST payment challans
Input tax credit reconciliation
Any GST notices or demands
ITR filed all years
Tax audit reports (if applicable)
TDS returns filed
Any assessment orders pending
EPF registration and payments
ESI registration and payments
Professional Tax deductions
Gratuity provision/insurance

⚖️Legal Due Diligence

Certificate of Incorporation
Memorandum of Association (MOA)
Articles of Association (AOA)
PAN Card of company
GST registration certificate
Shareholding pattern and history
All board resolutions (5 years)
Shop and Establishment license
Trade license (municipal)
FSSAI license (if food business)
Pollution/environmental clearances
Factory license (if applicable)
Property ownership or lease documents
Customer contracts (major)
Supplier and vendor agreements
Trademark registrations
Domain name ownership
Pending lawsuits or litigation
Insurance policies

⚙️Operational Due Diligence

Standard operating procedures documented
Accounting software and processes
CRM/customer management system
Inventory management system
Quality control procedures
Complete equipment list
Physical verification of assets
Equipment condition assessment
Maintenance records
Inventory physical count
Comparison of inventory to books
Key supplier list and terms
Critical single-source dependencies

👥Customer Due Diligence

Customer-level revenue (top 20)
Customer concentration analysis
Revenue trend by customer
Contract vs non-contract revenue split
Customer tenure analysis
Key relationship holders (owner vs company)
Contract terms and expiration dates
Customer complaint history
Online reviews and reputation
Top 5 customer conversations

👔HR Due Diligence

Complete employee list with tenure
Organization structure
Employment contracts/appointment letters
Salary details (all employees)
Benefits and allowances
Bonus/incentive structure
Market rate comparison
Critical employees identified
Key person retention risk
Non-compete agreements in place
EPF compliance verified
ESI compliance verified
Gratuity liability calculated
Leave encashment liability
Any employee disputes pending

🚨 Red Flags to Watch For

  • Cash revenue that can't be verifiedIf bank deposits don't match reported revenue, you can't trust the numbers
  • Single customer >25% of revenueLosing one relationship could tank the business
  • Tax non-compliance or pending disputesThese become your problem after acquisition
  • Key employees planning to leaveEspecially if they have critical customer or technical relationships
  • Seller won't provide documents or is evasiveTransparency issues early usually mean bigger problems later
  • Declining revenue without clear explanationUnderstand the cause before proceeding
  • Pending litigation or regulatory issuesUnknown liability exposure

Pro Tips for Effective Due Diligence

Request documents upfront

Send your complete document request list at the start. Waiting for documents extends timelines unnecessarily.

Use a data room

Ask the seller to upload documents to a shared folder. Track what's received vs. outstanding.

Hire professionals

For deals over ₹25-50 lakh, hire a CA for financial review and a lawyer for legal review. Worth every rupee.

Talk to customers

Customer reference calls are invaluable. Ask about satisfaction, likelihood to continue, and concerns.

Visit in person

Spend time at the business. Observe operations. Meet employees. You'll learn things documents won't show.

Document everything

Keep detailed notes. Create a due diligence report summarizing findings, concerns, and negotiation points.

For Each Issue Found:

  1. Quantify — Calculate financial impact where possible
  2. Document — Keep evidence and notes
  3. Categorize — Deal-breaker, price adjustment, or accept with protections
  4. Negotiate — Use findings in price/terms discussions

Frequently Asked Questions

How many items should I verify before proceeding?

Aim to verify 100% of material items—anything that could significantly impact value or operations. Some items may not apply to every business (mark as N/A), but every applicable item should be checked. Material items include: revenue and profit verification, all significant liabilities, key contracts, critical licenses, and tax compliance. For immaterial items (small contracts, routine licenses), sampling may suffice. If you can't verify a material item because documents aren't available, that itself is a red flag requiring risk assessment.

What if the seller can't provide certain documents?

Missing documents are yellow or red flags depending on what's missing—investigate why before deciding how to proceed. Common reasons include: documents never existed (informal businesses), documents lost, seller hiding problems, or documents with third parties (like banks or landlords). If critical documents can't be obtained, you have options: request that seller obtain them as closing condition, adjust price to reflect increased risk, require stronger indemnification, or walk away if the gap is too significant. Never close on a transaction with major verification gaps.

How do I handle issues I discover?

Use discovered issues constructively in negotiations—quantify impact and propose specific remedies rather than just demanding price cuts. Categories of response: (1) Deal-breakers that cause you to walk away, (2) Issues requiring price adjustment based on quantified impact, (3) Issues addressed through deal structure (escrows, earnouts, indemnification), (4) Issues you accept with open eyes. Present findings professionally with documentation. Rather than "I found problems, cut the price," try "Due diligence revealed ₹8 lakh in unfunded EPF liability and ₹5 lakh in obsolete inventory; I propose reducing price by ₹13 lakh or seller addressing these before closing."

Should I share this checklist with the seller?

Yes, sharing your due diligence request list upfront helps sellers prepare documents efficiently and signals your professionalism. Sending a comprehensive document request list immediately after LOI signing is standard practice. It sets expectations for the scope of your investigation, gives sellers time to gather materials, and establishes a businesslike approach. However, keep your evaluation notes and findings private until you're ready to negotiate—you don't need to share what you've discovered or your concerns until it's strategically appropriate to discuss pricing adjustments.

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