How to Prove an Unpaid Debt in Dubai Court | Legal Guide

How to Prove an Unpaid Debt in a Dubai Court
AUTHOR VERIFICATION
Written & reviewed by

Faris Raian

Founder Partner Leaders Advocates, Dubai
Debt Collection Updated September 17, 2026

Winning a debt case is rarely about who sounds more convincing. It is about which side can prove its account of events with evidence the court accepts. Knowing how to prove an unpaid debt in a Dubai court means understanding who has to prove what, which kinds of evidence carry weight, and what to do when the paperwork is thin.

Quick Answer

To prove a debt, show that the debt exists, identify the amount outstanding, and establish that payment is due. Use supporting documents and authentic electronic records, while respecting the applicable limits on witness evidence.

Once the debt is established, the debtor must prove payment or another defense. Clear contracts, invoices, payment records, correspondence, and other relevant evidence can therefore be important when preparing a debt claim.

Start by matching each part of your claim to its supporting evidence. Separate the agreement, the work or money provided, the due date, and the unpaid balance. This makes it easier to see what you can already prove and what needs further explanation before proceedings begin.

Legal Framework

To prove an unpaid debt in a Dubai court, the creditor must establish the obligation under Federal Decree-Law No. 35 of 2022 on Evidence in Civil and Commercial Transactions. Useful evidence includes contracts, invoices, statements of account, bank transfers, electronic messages (recognized in Articles 53 to 57), admissions and, where appropriate, commercial books.

For civil obligations above AED 50,000, witness testimony alone generally cannot prove the debt unless an exception applies. Commercial matters follow more flexible rules. Once the creditor proves the debt, the debtor bears the burden of proving payment. Courts often appoint accounting experts, and the decisive oath is a last-resort tool where other evidence is lacking.

Burden of Proof in the UAE

The creditor must prove that the debt arose, the amount owed, that it fell due, and that the claim is against the liable party. A loan agreement or sale document may help establish the source of the obligation.

The debtor must prove any defense relied on, including full or partial payment, set-off, discounts, credits, an agreed extension, or limitation. Keeping these questions separate helps both sides identify the actual dispute.

Documents The Strongest Evidence for a Debt Claim

• Signed contracts, loan agreements or purchase orders.

• Invoices and delivery or completion records.

• Statements of account, especially if the debtor confirmed them.

• Bank transfer records showing money leaving your account.

• Written acknowledgments of the balance.

An acknowledgment is particularly valuable. It helps prove the debt and may open the payment order route under Articles 143 to 150 of the Civil Procedure Law.

Connect the documents to the transaction

A useful evidence file lets someone unfamiliar with the relationship follow what happened. Put the agreement beside the invoice it supports, then add the delivery record, completion correspondence, or transfer confirmation. Explain the connection in a short chronology rather than expecting the reader to reconstruct it from unrelated attachments. The same approach helps when several purchases or loans involve the same parties.

Check names and amounts across the file. An invoice may identify a company, while a message comes from an individual using a personal telephone number. Record who that individual is and how the correspondence relates to the company. Flag inconsistencies for review instead of changing documents to make them appear consistent. Preserve the originals alongside any working notes.

Leaders Advocates’ debt recovery lawyers in Dubai can review how the records support the amount claimed and identify evidential gaps before the next recovery step is chosen.

Electronic Evidence

Emails, WhatsApp messages and other electronic records are recognized under the Evidence Law, subject to authenticity and relevance. Keep original devices and full exports. If the other side denies the messages, the court may examine them technically.

Keep the conversation in context

Save the complete exchange around a payment promise, including the messages that explain which invoice or loan the parties were discussing. A short statement such as “I will pay” is easier to understand when the surrounding conversation identifies the transaction and balance. Keep attachments with the conversation and retain the dates, sender information, and original records available to you.

Prepare a working copy for review without replacing the underlying material. If you highlight a passage, keep an unmarked version as well. Distinguish what a message actually says from what you think it means. This is especially useful when the debtor acknowledges a relationship but disputes the amount, or promises to review an account without accepting its balance.

Witness Testimony and Its Limits

The Evidence Law restricts witness testimony alone as proof of civil obligations above AED 50,000, and in certain other cases, such as where testimony would contradict a written document. Exceptions exist, for example where there is a beginning of written proof or an impediment prevented obtaining one. Commercial disputes are treated more flexibly, but documents remain far more persuasive.

Before relying on a witness, write down what that person directly observed and what they learned from someone else. Identify any documents connected with those observations. A person who attended a meeting may help explain its context, but that does not remove the statutory restrictions described above. Discuss the proposed evidence with a lawyer before treating a witness as the answer to missing paperwork.

Commercial Books and Accounting Experts

In business disputes, the parties’ books of account can be relevant evidence. Where accounts are complex or disputed, Dubai courts commonly appoint an expert to review the records and report on the balance. A court expert’s accounting review in Dubai often shapes the outcome, so parties should prepare organized records and engage fully with the expert.

Make the account easy to reconcile

Prepare one calculation showing the opening amount, each invoice or advance, every payment, and the closing balance. Use consistent transaction references so the calculation can be checked against the supporting records. If a payment covers several invoices, explain the allocation used in your records. If the allocation is disputed, identify that disagreement expressly rather than presenting it as an agreed fact.

Keep a separate list of disputed entries. State the amount of each item, the other party’s position, and the document you rely on. This allows an accounting review to focus on the points that affect the balance. A large file becomes less useful when the same document appears repeatedly under different names or when later versions of the account contradict earlier ones.

When an expert requests information, respond in an organized way and keep a copy of the response. Link each answer to the relevant record. Where a record is unavailable, explain the gap instead of substituting an assumption. For help preparing the dispute and responding to evidential issues, consider Leaders Advocates’ litigation services in Dubai.

Admissions, Interrogation and the Decisive Oath

A debtor’s admission in court or in writing is strong evidence. The court can also question parties directly. Where a creditor lacks other proof, the Evidence Law provides for the decisive oath, which one party can ask the other to swear on the disputed fact. It is a serious step with limited use, and its consequences should be considered carefully before it is requested.

Read an acknowledgment closely before describing it as acceptance of the entire claim. It may concern a particular invoice, a partial balance, or an amount subject to checking. Keep its wording intact and identify any qualification. The practical value of an admission depends on the disputed point it addresses; an admission that money was received does not necessarily explain every later adjustment in the account.

Building Your Evidence File

• Collect every document in date order.

• Match each transfer to an invoice or message.

• Prepare a clear statement of account showing payments and the balance.

• Translate key documents into Arabic where required.

• Identify gaps early and consider how to fill them, such as by asking for an acknowledgment.

Prepare a chronology that identifies the gaps

Begin with the agreement and follow the transaction through performance, invoicing, the due date, payment reminders, and any response. For each event, note the supporting document and where it is stored. Keep the chronology factual and brief. Its purpose is to guide the review, while the underlying documents provide the detail and preserve the parties’ actual words.

Include records that may challenge your position. A complaint about delivery, an alleged credit, or a request for more time may explain why the debtor disputes payment. Omitting those records from the material you give your lawyer makes an early assessment less useful. Identify which issues concern the existence of the debt and which concern only the calculation of the balance.

Where translation is required, keep the original and translated versions together and check that document references match. Make a short list of missing items before your consultation, such as an unsigned agreement or a payment without an obvious invoice reference. Leaders Advocates’ civil dispute lawyers in Dubai can assess those issues in the context of the particular claim.

Explain a cash transaction without overstating the records

For a cash loan, gather the messages discussing the loan and any acknowledgment of receipt or repayment. Keep withdrawal records with the rest of the material, while explaining the connection you say they have to the transaction. Write down the sequence of events as accurately as possible and identify what is documented. A withdrawal record and a later conversation may address different parts of your account; present both in context. Where paperwork is thin, ask which gaps matter most under the evidence rules before relying on a witness or considering the decisive oath.

Common Mistakes

• Relying on witnesses for a large civil debt without documents.

• Submitting cropped screenshots instead of full records.

• Presenting a statement of account that does not match bank records.

• Ignoring the expert’s requests for documents.

• Requesting the decisive oath without weighing the consequences.

Another practical mistake is collecting more material without explaining its relevance. Before adding a document, ask which disputed fact it helps address. A focused file should allow the reader to move from the claimed amount to the supporting transaction and then to any payment or objection. That discipline improves clarity without overstating the strength of the case.

Faris Raian and the team at Leaders Advocates can assess your specific situation.

Frequently Asked Questions:

Can I prove a cash loan in Dubai?
It is harder. Messages acknowledging the loan, withdrawal records, and admissions become important, and witness limits may apply for larger civil amounts.

Does the debtor have to prove they paid?
Yes. Once the creditor proves the debt, the debtor must prove payment or another defense.

Will the court appoint an expert?
Often, where accounts or technical issues are disputed. The expert’s report is influential but not binding.

Are emails valid evidence?
Yes, as electronic evidence, subject to authenticity and relevance.

Can WhatsApp messages help prove an unpaid debt?
Yes. Electronic messages can support a claim, subject to authenticity and relevance. Preserve the full conversation and original records rather than relying only on cropped screenshots.

What should a statement of account show?
It should clearly show the amounts claimed, payments received, and remaining balance. Match the entries to invoices, bank records, and relevant correspondence so any disputed adjustment can be identified.

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