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  • Nov 11,2026

Contract Act, Section 128

Contract Act, Section 128: Surety’s Liability

Section 128 of the Indian Contract Act, 1872 provides that the liability of a surety is co-extensive with that of the principal debtor unless the contract provides otherwise, allowing the creditor to proceed against the surety immediately upon the principal debtor's default.

The surety is generally liable to the same extent and under the same conditions as the principal debtor, although the parties may limit or modify the surety's liability through the terms of the guarantee agreement.

1. Purpose of Section 128

The primary objective of Section 128 is to define the extent of the surety's liability under a contract of guarantee.

The provision ensures effective security for the creditor by making the surety legally responsible upon the principal debtor's default, unless the contract provides otherwise.

2. Meaning of Co-Extensive Liability

The expression co-extensive means that the surety's liability ordinarily extends to the same extent as that of the principal debtor.

Unless the guarantee agreement expressly limits the surety's obligation, the surety is liable for the entire debt or obligation for which the principal debtor is legally responsible.

3. Equal Extent of Liability

Since the liability is co-extensive, the surety is generally responsible for the full amount payable by the principal debtor.

The liability ordinarily includes the principal amount, interest, damages, costs, and other lawful obligations, subject to the terms of the contract and applicable law.

4. Liability Arises Upon Default

The surety's liability becomes enforceable immediately upon the default of the principal debtor.

Once the principal debtor fails to perform the promise or discharge the liability, the creditor acquires the legal right to enforce the guarantee against the surety.

5. Creditor's Right to Proceed Against the Surety

An important feature of Section 128 is that the creditor is not ordinarily required to first exhaust remedies against the principal debtor before proceeding against the surety.

Upon the principal debtor's default, the creditor may proceed directly against the surety unless the contract expressly provides otherwise.

6. Secondary Nature of the Surety's Obligation

Although the surety's liability arises only after the principal debtor defaults, its extent is equal to that of the principal debtor.

The obligation is secondary in origin but co-extensive in scope, making the surety legally responsible to the same extent as the principal debtor upon default.

7. Contractual Modification of Liability

Section 128 recognizes the parties' freedom to define the extent of the surety's liability, allowing the guarantee to limit liability by amount, transactions, conditions, or other agreed terms, which prevail over the general rule of co-extensive liability.

8. Liability Subject to the Terms of the Guarantee

Section 128 provides that the extent of the surety's liability is governed by the terms of the guarantee, and any agreed limitations as to duration, amount, or nature are ordinarily enforceable by the courts.

9. Relationship Between the Surety and Principal Debtor

Although both the principal debtor and the surety may be liable to the creditor, the principal debtor is primarily responsible for the obligation, while the surety's liability arises under the guarantee and carries a right of recovery against the principal debtor after payment.

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