What is business due diligence?
Business due diligence is a structured check of a counterparty before money, goods, data, or contractual obligations change hands. It verifies facts and highlights inconsistencies; it does not predict future conduct or produce a creditworthiness verdict.
For a small business, the process does not need to be expensive. Start with the identifiers and documents already involved in the transaction, compare them with official public records, and record every mismatch that still needs an explanation.
Use the same baseline process for customers, suppliers, distributors, contractors, and channel partners. Add deeper checks when the exposure is larger, the payment period is longer, or the transaction is hard to reverse.
10 checks to complete before you transact
The most useful checklist moves from identity to registrations, payment instructions, operating evidence, public records, and written commercial controls. Complete the checks before dispatching goods on credit or paying a material advance.
- 1
Confirm the contracting name
Ask for the exact legal name, trade name, entity type, registered address, and the name of the person authorised to sign. Put the legal name, not only the storefront name, on the agreement and purchase documents.
- 2
Verify the GSTIN
Search the GSTIN on the official GST Portal. Compare the legal name, trade name, constitution, registration date, status, address, and business activities with the invoice and onboarding form.
- 3
Check company or LLP master data when applicable
For companies and LLPs, use the MCA master-data service to compare the corporate identity, incorporation details, registered office, and current status with the documents supplied to you.
- 4
Verify any MSME claim
If the party claims Udyam registration or MSME status, ask for the registration number or certificate and verify it through the official Udyam portal. Treat the registration as an identity and classification record, not a payment guarantee.
- 5
Match bank details to the counterparty
Obtain bank details through a controlled channel and compare the beneficiary name with the contracting entity. Independently reconfirm any last-minute account change using a previously verified contact.
- 6
Compare invoice particulars
Check that the invoice carries the supplier name, address, GSTIN, date, serial number, description, value, and tax particulars required for the transaction. A polished PDF is not proof that the underlying identifiers are genuine.
- 7
Confirm operating presence
Check whether the address, phone, domain email, website, and named contacts consistently point to the same business. For high-exposure transactions, use a site visit, video verification, or trusted local reference.
- 8
Take trade references
Speak to recent suppliers or customers using contact details you verify independently. Ask factual questions about order size, delivery, dispute handling, and payment timing instead of requesting a vague character endorsement.
- 9
Search relevant court records carefully
Search legal and trade names in the relevant District Court and High Court systems. Treat every name match as a candidate until party role, geography, identifiers, case number, and orders support attribution.
- 10
Set written exposure controls
State the credit period, limit, delivery evidence, inspection window, late-payment consequences, dispute process, and authority to place or change orders. Use smaller initial exposure when important facts remain unresolved.
Which evidence answers which question?
Each source has a narrow job. A registration can support identity, an invoice can document a transaction, and a reference can describe past experience. None of them alone proves solvency, honesty, or future payment.
| Question | Useful evidence | What it does not prove |
|---|---|---|
| Who is the party? | GST search, MCA master data, signed onboarding | That the person contacting you is authorised |
| Where does it operate? | Registered address, site evidence, delivery records | That every claimed location is active |
| Where should money go? | Cancelled cheque, bank letter, verified callback | That an emailed account change is genuine |
| How has it performed before? | Specific trade references and transaction records | That future performance will be identical |
| Does it appear in litigation? | Case number, CNR, party details, orders | Wrongdoing, default, or adverse creditworthiness |
How to record the result without creating a score
Save the source, retrieval date, fact observed, mismatch, explanation received, and follow-up action. This creates a reviewable decision trail without converting incomplete public records into a misleading score or traffic-light verdict.
Confirmed
Facts directly supported by an official source or document whose origin you verified.
Unresolved
Differences that need clarification, such as a bank beneficiary or address that does not match.
Unavailable
Information you tried to obtain but could not access or independently verify.
Commercial response
The practical control you chose, such as a lower advance, staged delivery, or shorter credit period.
Primary sources
These official sources support the factual parts of this guide. Check the live source again before relying on time-sensitive information.
- GST Search TaxpayerGoods and Services Tax Portal. Official taxpayer search by GSTIN, UIN, or PAN.Open official source
- Welcome Kit for New TaxpayersGoods and Services Tax Portal. Official guidance describing the details available through taxpayer search.Open official source
- Tax Invoice, Credit and Debit Note RulesCentral Board of Indirect Taxes and Customs. Official rules listing the particulars required on a GST tax invoice.Open official source
- FAQs on the MCA WebsiteMinistry of Corporate Affairs. Official guidance for accessing company and LLP master data services.Open official source
- Udyam Registration PortalMinistry of Micro, Small and Medium Enterprises. Official MSME registration portal and registration guidance.Open official source
- eCourts Case StatuseCommittee, Supreme Court of India. Official District Court case-status search, including search by party name.Open official source
- High Court ServiceseCommittee, Supreme Court of India. Official High Court search by party name, case number, filing number, and other fields.Open official source
- Credit Information Companies (Regulation) Act, 2005India Code. Official legislation portal. Search this Act by title to read its text and details.Open official source
Frequently asked questions
What documents should I ask a new Indian vendor or customer for?
Ask for the legal name, GSTIN where applicable, registered and operating addresses, authorised contact details, bank proof, a sample tax invoice, relevant company or LLP identifiers, and any claimed Udyam number. The exact list should reflect the transaction and entity type.
Is an active GSTIN enough to trust a business?
No. An active GSTIN supports registration identity and status at the time of search. It does not prove solvency, product quality, ownership of the bank account provided to you, or future payment performance.
How often should counterparty due diligence be refreshed?
Refresh it before a material increase in exposure, after a major change in bank details or ownership, when documents stop matching, and periodically for continuing relationships. Record the retrieval date because public records can change.
Editorial note: This guide is educational and based on public-source documentation available on the update date above. It is not a credit report, credit score, rating, legal advice, tax advice, or a guarantee about any counterparty.