An acknowledgement of debt letter is a written statement, signed by the debtor or its authorised agent, admitting that an amount is owed to the creditor. Under Section 18 of the Limitation Act, 1963, if it is signed before the limitation period expires, a fresh limitation period starts from the date of signing. It should name both parties, identify the debt, be dated and be signed.
The letter format
This is written to be issued on the debtor's letterhead and signed by them. Send it pre-filled so they only need to sign and stamp.
[DEBTOR'S LETTERHEAD] [DEBTOR LEGAL NAME] [ADDRESS] | GSTIN: [DEBTOR GSTIN] Date: [DATE] To, [CREDITOR NAME] [CREDITOR ADDRESS] Subject: Acknowledgement of amount payable Dear Sir/Madam, 1. We, [DEBTOR LEGAL NAME], acknowledge and confirm that a sum of Rs [AMOUNT IN FIGURES] (Rupees [AMOUNT IN WORDS] only) is due and payable by us to [CREDITOR NAME] as on [DATE], towards [supply of goods / services] under the following invoices: [INVOICE NO.] dated [DATE] for Rs [AMOUNT] [INVOICE NO.] dated [DATE] for Rs [AMOUNT] (as per the statement of account enclosed, which we have checked and confirm) 2. We have no dispute or counter-claim in respect of the above amount. [Or, if any: Except for [DESCRIBE], which is to be settled separately, we have no dispute.] 3. We undertake to pay the above amount [in full by [DATE] / in instalments as follows: Rs [AMOUNT] by [DATE]; Rs [AMOUNT] by [DATE]]. 4. [Optional: Interest at [RATE]% per annum on delayed instalments will be payable as agreed.] For [DEBTOR LEGAL NAME] [SIGNATURE] Name: [AUTHORISED SIGNATORY NAME] Designation: [PROPRIETOR / PARTNER / DIRECTOR] [COMPANY SEAL / STAMP] Place: [PLACE]
How to fill it
- Prepare a reconciled statement of account first and attach it, so the amount cannot be disputed later.
- Put the debtor's exact legal name and GSTIN. For a company, the signatory should be a director or an officer authorised to admit liabilities.
- Fill in the date of signing. The fresh limitation period runs from that date.
- Keep paragraph 3 realistic. A payment date the debtor believes in gets signed; an impossible one does not.
- Collect the signed original, or at least a signed scan from the debtor's official email, and file it with the invoices.
Common mistakes
- Waiting until after three years. Section 18 needs the acknowledgement to be signed before the period expires; use the limitation period calculator to check.
- Accepting an unsigned email or a WhatsApp voice note. Courts look for a signed writing; an email from the debtor's official address may be treated as signed electronically, but a signed letter avoids argument.
- Getting it signed by a junior employee with no authority to admit company liabilities.
- Wording that is conditional ("we will pay once our client pays us"). Courts have held conditional statements can still be acknowledgements, but a clear admission is safer.
How to get it signed and what happens next
Debtors sign acknowledgements most readily as part of a payment plan or year-end balance confirmation. A useful approach: send it with your proposal for instalments, or as part of your annual ledger confirmation. A part payment made before expiry, recorded in writing signed by the payer, also gives a fresh period under Section 19.
Once signed, you have a strong document for a summary suit under Order XXXVII CPC if the debtor defaults, because the defendant will struggle to show a triable defence against its own written admission. If the debtor refuses to sign anything, take that as a signal to move to a legal notice before limitation runs out.
Last reviewed: 2026-10-20. Information for Indian businesses; not legal advice.