What Documents Prove a Debt When There Is No Written Contract?

Can you prove a debt without a written contract?

Yes. Under the Indian Contract Act, 1872, an agreement is an enforceable contract when it's made by free consent between competent parties for lawful consideration (Sections 2(h) and 10). Nothing in the Act says it has to be on paper, unless some other law requires that. For sales of goods, Section 5 of the Sale of Goods Act, 1930 says it outright. A contract of sale can be in writing, by word of mouth, partly each, or implied from how the parties behaved. That's how most trade in Delhi NCR actually runs.

So the real question isn't whether a contract existed in law. It's whether you can show the court what was agreed and what happened. That's about evidence. Without a signed contract, you prove the debt the way a detective builds a case, from lots of small pieces that fit together. Most of those pieces were made in the ordinary course of business, long before anyone expected a fight. Courts trust papers made at the time. They trust them even more when the other side made or accepted them.

There are four things to prove, and you need something for each. There was an order or agreement. You performed it. The price was fixed somehow. And the debtor accepted the work or the bill. We'll go through them one at a time below. Our money recovery suit page explains how these documents are then used in court.

Proving the order: what stands in for a signed contract

Anything where the debtor itself asked for the goods in writing comes close to a signed contract. Its PO is good evidence, signed or not, even if it just came out of the debtor's ERP software. The point is who sent it. An email asking you to please supply 500 cartons at the rate quoted does the same job. A WhatsApp order list does too, as does a one-line reply accepting your quote. Did you quote a rate, after which the debtor took the goods and cleared earlier bills at that rate? Then your quotation and its behaviour, taken together, prove the terms.

Section 9 of the Contract Act recognises implied promises, meaning promises made by conduct instead of words. Picture a distributor who's bought from you every month for three years at a price list you sent around, and paid most of the bills. It can't easily say there was no contract for the last six. Past dealings set the terms for the present ones. In that sense, the invoices it did pay are part of your proof for the ones it didn't.

What if nothing in writing shows the order at all? Section 70 of the Contract Act can still help. Where someone lawfully does something for another person, or delivers goods, without meaning to do it for free, and the other person enjoys the benefit, that person has to pay for it or return the goods. A buyer that used your material in its own production has enjoyed the benefit. So has a client running its business on software you built. Section 70 is a fallback. We wouldn't lead with it. But it answers the defence that no contract was ever made.

Proving delivery or performance: papers other people made

Delivery proof is where these cases are won or lost. The strongest delivery papers are the ones signed or generated by someone other than you. The classic is a delivery challan or invoice copy with the receiver's stamp and signature on it. A goods receipt note from the debtor's own stores is better still, because it's the debtor's record. Transport papers add a neutral voice, like a lorry receipt or consignment note from the transporter, the transporter's proof of delivery, or a courier tracking record.

GST has made delivery much easier to prove. An e-way bill has to be generated for most movements of goods worth more than Rs 50,000 in value. It records the recipient's GSTIN, the vehicle and the date. If your turnover puts you above the e-invoicing threshold, each invoice also carries an Invoice Reference Number from the government portal. Neither proves receipt by itself. But both are records made at the time, and a debtor will struggle to call them fabricated.

Services are different. Nobody issues a lorry receipt for an audit, a marketing campaign or a website. Here the proof sits in emails approving drafts, milestone sign-offs, user acceptance test reports, attendance sheets, site measurement books signed by the client's engineer, go-live confirmations and anything showing the client actually used the work. At the first meeting, Advocate B.K. Singh usually asks service clients one thing. Show me the email where the client said this is done, or this is fine. If there's one of those for every billing period, the case is in decent shape.

Is your ledger enough evidence of the debt by itself?

No. That surprises a lot of business owners. The rule on ledgers as evidence is in Section 28 of the Bharatiya Sakshya Adhiniyam, 2023, which took the place of Section 34 of the Indian Evidence Act from 1 July 2024. It says entries in books of account regularly kept in the course of business, electronic books included, are relevant. But they aren't enough on their own to charge anyone with liability. In CBI v. V.C. Shukla (1998), the Supreme Court explained that such entries need independent corroboration before liability can be fixed on another person.

That doesn't make your ledger useless. Far from it. A ledger kept regularly in Tally or similar software, with entries made at the time, shows the pattern of dealings, the running balance and every payment the debtor made. It's the spine of your claim, and the judge will read it closely. What it needs is backing from papers the debtor can't disown. That means payments from the debtor's bank account that match your entries, delivery proof, TDS records and balance confirmations.

Two practical points. First, produce the ledger in a way that shows it was kept regularly. That's the full account from the very first transaction, opening balance and every entry, not just the unpaid stretch. Second, it's an electronic record now. So it needs a certificate under Section 63 of the Adhiniyam, signed by whoever is in charge of your accounting system. File a ledger printout without that certificate and you've handed the debtor an objection it didn't need.

The debtor's own tax records often beat everything else

Very often the strongest proof you'll get is what the debtor itself told the tax department. Nobody likes arguing with their own returns. Look at TDS first. Log in to the income tax portal and open your Form 26AS and Annual Information Statement. Any tax the debtor cut from your bills sits there against your PAN, along with its TAN, the sum paid or credited, and the date. Think about what that means. A business that deducted TDS on your bill was treating that bill as a genuine cost in its own accounts.

GST tells the same story from the buyer's end. Section 16(2)(b) of the Central Goods and Services Tax Act, 2017 allows input tax credit only where the buyer has actually received the goods or services. So a debtor that took credit on your invoices has, in effect, informed the government that it got what you charged for. Its returns aren't visible to you. What you report in your GSTR-1 does show up in its GSTR-2B, though. And once a suit is filed, the court can be asked to make the debtor produce its purchase register and returns.

With a company, there's another place to look. Its audited balance sheet goes to the Registrar of Companies every year, and the schedule of trade payables attached to it may list sums due to creditors like you. The Supreme Court, in Asset Reconstruction Company v. Bishal Jaiswal (2021), held that balance sheet entries can, on the right facts, count as an acknowledgment of debt. Pull those filings off the MCA portal before you file. It takes ten minutes.

Bank entries, part payments and balance confirmations

Each rupee the debtor paid you in the past helps prove the relationship existed, and it often proves the terms as well. Suppose bills 1 to 40 were paid at one rate, and then nothing. Forty payments at that rate show it agreed the price and was getting the goods. You prove bank entries with certified copies under the Bankers' Books Evidence Act, 1891. Your branch can issue them. Get them for the entire period you dealt with this customer, start to finish. Then tick off each receipt against the bills it paid.

Narrations help. A transfer that names specific invoice numbers ties the debtor to those invoices. One marked on account, or part payment of outstanding, confirms a bigger balance was due. Round-sum payments every few weeks with no narration are weaker. They still show a running account, though.

If you can get one document, get a signed balance confirmation. It pulls all the earlier evidence together into a single admission. If the debtor has ever signed one, even years back, dig it out. If it hasn't, ask for one now as part of a routine year-end reconciliation, before anyone declares a dispute. Our guide on recovering money from a debtor who keeps promising to pay explains how to ask for it, and why it also restarts limitation.

How much weight does each document carry? A rough ranking

Emails and WhatsApp: proving the conversation behind the deal

No contract? Then the back-and-forth between you and the debtor usually is the contract. Its emails and WhatsApp messages tell the court who asked for what, the price, any complaints, and every promise to pay. In law these are electronic records. They come in under Section 63 of the Bharatiya Sakshya Adhiniyam, with a certificate that identifies the phone or computer, explains how the printout or file was made, and confirms the device was working normally. It's signed by whoever controls the device, and the prescribed form under the Adhiniyam also has a part for an expert. Ask your lawyer what's currently required before filing. Practice here is still settling.

The weak spot in any chat is attribution. You have to show the number belonged to the debtor or an employee it authorised. That's easy when the same number appears on the debtor's letterhead, invoices or GST registration, or when the messages are followed by matching payments. Messages from a purchase manager's personal mobile are harder. You may need to show the debtor acted on them.

Export chats as files instead of relying on screenshots. Keep the phone that holds them. And don't delete anything, even the messages that don't help you. Our guides on proving emails and WhatsApp chats in a commercial court and on recovering money when all you have is chats and bank transfers go further into this.

Making the debtor hand over what it's holding

A lot of your best proof is locked in the debtor's own cupboards and computers. Think of its stock register and purchase register, its GRNs and GST returns, even emails with its customers about your goods. Commercial suits have a rule for this. Under Order XI of the Code of Civil Procedure, as the Commercial Courts Act, 2015 amended it, both sides must file, along with their pleadings, every relevant document they hold, good or bad for them. So the debtor's records have to come in with its written statement.

If the debtor holds back, you can ask the court for disclosure and inspection and serve a notice to produce particular documents. A party that won't produce a document it obviously has risks the court presuming the document would have gone against it. That's an old rule, and it's carried into the Bharatiya Sakshya Adhiniyam. In practice, the threat of disclosure alone sometimes changes a debtor's tune. Its purchase register and GST returns won't say what its written statement says.

When a file reaches Advocate B.K. Singh with no contract and thin delivery proof, he usually drafts the plaint so it names the exact debtor records that will confirm each batch of invoices, for instance the purchase register for a particular quarter or the GSTR-3B for a particular month. The debtor knows from day one that its own books are going to be tested.

Building proof of debt without a contract, step by step

Do this before the legal notice goes out. The notice reads much stronger when it quotes the documents, and a notice sometimes makes the debtor stop cooperating altogether.

1. List every unpaid invoice

   Write down the invoice number, date, amount, GST, due date and the goods or services it covers. Everything else hangs off this list.

2. Find the order behind each one

   Against each invoice, attach the purchase order, order email, WhatsApp order or accepted quotation. Where there's nothing, note the earlier dealings that show the same terms.

3. Attach proof of delivery or acceptance

   Pull out the stamped challans, GRNs, lorry receipts, e-way bills, courier proofs or sign-off emails. Flag any invoice where all you have is your own paper.

4. Download your tax records

   Take your Form 26AS and Annual Information Statement for the relevant years and mark the TDS the debtor deducted against each invoice. Pull your GSTR-1 filings and e-invoice records too.

5. Get the bank trail

   Get certified bank statements for the whole relationship and match every receipt from the debtor to the invoices it cleared.

6. Export and certify the electronic records

   Export the emails and chats, keep the devices safe, and prepare Section 63 certificates for the ledger, emails and chats.

7. Ask for a balance confirmation

   Send a statement of account to the debtor's finance team and ask for a signed confirmation, before the relationship breaks down completely.

Once the file's together, read it as if you were the debtor and write down its strongest arguments, the ones you'd worry about most. Those are the gaps to close before filing.

Checklist: papers that prove a debt with no written contract

• Purchase orders, order emails, WhatsApp orders or quotations the debtor accepted
• Price lists or rate emails you sent the debtor, plus older invoices it paid at those rates
• Delivery challans and invoice copies carrying the receiver's stamp and signature
• Goods receipt notes, lorry receipts, the transporter's proof of delivery and courier records
• The e-way bill and e-invoice IRN record for every invoice
• For services, the sign-off emails, milestone approvals, measurement books or go-live confirmations
• Your complete ledger of the debtor's account, with a Section 63 certificate
• Certified bank statements showing each payment the debtor ever made to you
• Form 26AS and Annual Information Statement entries for TDS the debtor deducted
• Your GSTR-1 returns, showing the invoices you reported
• Any signed balance confirmation, acknowledgment or promise to pay
• If the debtor's a company, its balance sheet and trade payables schedule from the MCA portal

Time and costs, from gathering proof to a decree

Can you file a summary suit with no written contract?

Sometimes. Order XXXVII of the Code of Civil Procedure allows a summary suit for a debt or liquidated demand that arises on a written contract, or on a cheque, promissory note or bill of exchange. People assume written contract means a signed agreement. It doesn't have to. On suitable facts, courts have accepted a PO the seller accepted in writing, invoices the buyer acknowledged, or a signed balance confirmation as enough. Where all you hold is your own invoices, with nothing back from the buyer, the ground is weaker.

What the court asks is simple. Do these papers, read as a set, show a written agreement to pay a fixed sum? If yes, go summary. The debtor then can't defend without the court's leave. A defendant whose only answer is to deny an order its own staff placed rarely gets unconditional leave. We've written more on this in our guide on whether you can file a summary suit on invoices alone.

If the papers don't fit, file a regular commercial suit. You can still ask for summary judgment under Order XIII-A once the debtor's defence is on record and plainly has no real prospect of success.

Where you file, and which court hears it

If you sold goods or provided services and you're owed Rs 3 lakh or more, that's a commercial dispute. You go through Section 12A mediation first, then to a commercial court. Delhi splits it by value. Up to Rs 2 crore, the suit is heard by the District Judge (Commercial Court) for the district that has territorial jurisdiction, which could be Tis Hazari, Saket, Karkardooma, Rohini, Dwarka or Patiala House. Anything above Rs 2 crore is for the Commercial Division of the Delhi High Court. A change to the district ceiling has been proposed, so confirm the figure before filing. Across the border, in Gautam Buddh Nagar, Ghaziabad, Gurugram and Faridabad, each district has a court designated as its Commercial Court.

No written contract means no jurisdiction clause. You're left with Section 20 of the Code. That lets you sue where the debtor carries on business or where any part of the cause of action arose. In a supply case, that's usually the place the order was received and accepted, the place goods were delivered, and the place money was to be paid. If your invoices name a place of payment and the debtor has paid there for years, you may well be able to file in your own city. More on this on our page about which court will hear your case.

What to do this week

Sit down with the list of bills nobody's paid. Next to each, note anything the debtor or an outsider produced, such as its order, a signed challan, a TDS entry, a payment or a confirmation. Get your 26AS downloaded and ask your bank for certified statements. Phones get changed and chats vanish, so export them now, emails too. Is the debtor a company? Then its most recent balance sheet is on the MCA portal. Finally, take the oldest invoice's due date and test it against our guide on limitation for recovery of money. Brilliant paperwork is no use once the time's gone. Our recovery suit page explains what we do once the file's ready, and the documents for a recovery suit guide covers the papers every claim needs.

Want someone to go through your documents and tell you honestly how strong your proof is before the notice goes out? Or updates when evidence and recovery law change? You can contact Advocate B.K. Singh's team through the contact page.