Debt Securities in the Recovery of Claims Based on Documents and Contracts
A creditor, in seeking to recover a claim, is exposed to the risk that the debtor may fail to make payment or may become insolvent. In certain cases, the debtor may engage in genuine or simulated transactions or act with the intent to evade payment, thereby placing assets beyond the reach of creditors and frustrating enforcement efforts. To mitigate such risks and facilitate the recovery of claims, creditors commonly require collateral from debtors. Moreover, individuals who can provide adequate security and earn lenders’ confidence are more likely to obtain credit from both individuals and banks. Another important advantage of holding security is that a secured creditor enjoys priority over other creditors. When the debtor’s assets are insufficient to satisfy all debts, creditors must compete with one another and are often able to recover only a portion of their claims. By contrast, a secured creditor has an exclusive right and may recover the full amount of the claim from the secured asset. These advantages have led to the widespread use of debt securities in legal relations since ancient times. Debt securities are generally classified into real securities and personal securities.
The Concept of Debt Security and Its Position in the Iranian Legal System
In addition to assessing applicants’ eligibility and creditworthiness for banking facilities, banks require securities and guarantees to ensure the recovery of claims, defray legal costs, and protect expected profits.
In legal terminology, a security refers to property in the broad sense or an obligation that is provided by the obligor to the obligee to strengthen the performance of a specific obligation. This definition encompasses pledges, transactions with a right of redemption, and cash guarantees.
The most important and reliable forms of security commonly used by banks to secure claims are immovable property, followed by deposits and bank guarantees, and subsequently commercial instruments and bills of exchange. The security requirements of banks vary depending on the nature of the facility. In cases such as legal partnerships and direct investments, where the bank’s rights are preserved through the acquisition of shares, there is no need to obtain any additional security or guarantee. In industrial and production projects, the project assets themselves, including land, machinery, and installations, are taken as collateral. In certain facilities, such as mudaraba or civil partnerships, security may take the form of a supporting official document under which the bank’s customer may, through ordinary contracts, engage in multiple transactions up to a specified ceiling. Nevertheless, in general, the securities required by banks fall into two main categories. They are either real securities, typically in the form of a pledge, or personal securities, such as guarantees.
Real and Personal Securities
The Civil Code recognizes both guarantee and pledge as nominee contracts and, in defining a pledge, explicitly characterizes it as a security under Article 771. Although the Civil Code does not expressly describe a guarantee as a form of security, in practice, a guarantee is always used to secure a debt. Accordingly, a guarantee, like a pledge, must be regarded as a form of debt security.
Real Security
A real security, or pledge, involves the designation of specific property for the satisfaction of a claim through its sale.
Personal Security
Personal security involves a guarantor’s acceptance of an obligation to pay. A personal guarantee is not a complete form of security, as the guarantor may also become insolvent. For this reason, when accepting a guarantee, the creditor examines the guarantor’s ability to pay to minimize the risk of potential insolvency.
Characteristics of the Guarantor
The guarantor is a principal party to the contract of guarantee, as the guarantor undertakes to pay the debt of the principal debtor in the event of non-payment. Accordingly, the guarantor must possess the following characteristics:
- Legal Capacity: The guarantor must have legal capacity and the right to dispose of their property. By accepting the guarantee, the guarantor becomes obligated to pay the debtor’s debt. If the principal debtor is absent, insolvent, or refuses to pay, the guarantor may be required to satisfy the debt. Therefore, the guarantor must have the legal capacity to manage and dispose of property.
- Financial Solvency: If the guarantor lacks sufficient assets, the guarantor will be unable to fulfill their obligation to the creditor, rendering the guarantee ineffective. When the parties agree on the identity of the guarantor, the creditor typically conducts the necessary investigations to verify the guarantor’s solvency and creditworthiness, and accepts only a guarantor with sufficient financial standing to discharge the debt. In such cases, the creditor is the effective decision-maker regarding the guarantor’s solvency, and financial capacity is an essential condition for a valid guarantee under banking contracts.
Frequently Asked Questions About Debt Securities in the Recovery of Claims Based on Documents and Contracts
A debt security is property or an obligation provided to secure the performance of a specific obligation owed by a debtor to a creditor. In the Iranian legal system, banks and financial institutions rely on various forms of real and personal securities, including immovable property, deposits, bank guarantees, and commercial instruments, to recover their claims.
A real security, or pledge, involves specific property designated for the satisfaction of a claim through its sale. Personal security involves a guarantor’s undertaking to pay the debt. Its effectiveness depends on the guarantor’s financial capacity.
A guarantor must have legal capacity and the right to dispose of property, as well as sufficient financial solvency to pay the debt of the principal debtor in the event of non-performance. Verification of the guarantor’s financial standing by the creditor is essential.
By holding security, a creditor gains priority over other creditors and may recover the full amount of the claim from the secured asset, even when the debtor’s assets are insufficient to satisfy all debts.
Banks commonly rely on immovable property, deposits, bank guarantees, commercial instruments, and, in certain facilities, industrial project assets and machinery. The type of security depends on the nature of the facility and the underlying contract.
In a pledge, specific property is designated as security, and the creditor may recover the claim by selling the pledged property. In a guarantee, the guarantor undertakes to pay the debtor’s obligation. Due to the potential insolvency of the guarantor, a guarantee is not considered a complete form of security. What is a debt security, and what is its role in the Iranian legal system?
What is the difference between real and personal securities?
What characteristics must a guarantor have?
What advantage does a creditor gain by obtaining security?
What types of securities are commonly used by banks?
How are securities used in pledge and guarantee contracts?





If I lend money to a friend without asking for collateral, can I still recover it legally?
Possibly. The absence of collateral does not automatically prevent debt recovery, but it may affect the available enforcement options. The outcome often depends on the existence of a written agreement, payment records, and other evidence supporting the loan.
Can someone use the same property as collateral for more than one loan?
In some situations, yes. Whether that is legally possible depends on the applicable law, the existing security interests, and the rights of each lender. Priority between creditors can become a significant issue if the borrower defaults, so the documentation should be reviewed carefully.
What if the collateral loses most of its value before the loan is repaid?
A decline in the value of collateral can affect both the lender and the borrower. Depending on the agreement, the lender may have certain contractual rights, but those rights vary from case to case. The terms of the loan documents are especially important in this situation.
Is a handwritten loan agreement enough if both people signed it?
A handwritten agreement may still have legal significance, but its effectiveness depends on the applicable law and whether it clearly sets out the essential terms of the loan. Supporting evidence can also become important if a dispute arises.
Can a lender take the collateral immediately after one missed payment?
Not necessarily. The lender’s rights usually depend on the terms of the agreement and the legal procedures that apply. Before collateral can be enforced, certain contractual or legal requirements may need to be satisfied.
If someone guarantees a loan for a family member, are they responsible for the whole debt?
That depends on the wording of the guarantee and the governing law. A guarantor’s obligations can vary considerably, so it is important to review the guarantee agreement before determining the extent of any liability. If you are dealing with a specific guarantee, a private legal review is advisable.
Can a borrower sell the collateral before the loan is fully paid off?
In many cases, selling collateral without addressing the lender’s rights can create legal complications. Whether a sale is permitted depends on the loan agreement, the type of collateral, and the applicable legal framework. The relevant documents should be examined before proceeding.
What happens if the loan agreement never says exactly when the money has to be repaid?
An unclear repayment provision can lead to disputes over when the debt becomes due. The agreement, the parties’ conduct, and other evidence may all be considered when interpreting their intentions. Clear drafting from the beginning is always preferable.
Is it possible to challenge a lender’s valuation of the collateral after default?
In some circumstances, yes. If there are legitimate concerns about how the collateral was valued or handled, those issues may be open to legal review. The available remedies depend on the governing law and the facts of the particular case.
If the collateral is worth more than the unpaid loan, does the lender get to keep everything?
Not automatically. The treatment of any remaining value depends on the applicable law, the loan documents, and the manner in which the collateral is enforced. If there is a dispute over the proceeds or the recovery process, the entire transaction should be reviewed before reaching any legal conclusions.