Report lost or stolen checks

Fill in your details and generate a complaint letter for a lost or stolen check or checkbook. You can print it instantly.

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13/06/2026
Full name : Aziz el kadiri
CIN : BK123456
Address : Rue 35 centre Casablanca
Account number : 9989898888988
To the Manager of
Attijariwafa bank


Subject: Declaration of Loss or Theft

I, the undersigned, hereby declare that Check linked to my bank account held with your institution is Lost, on 01/01/2026 bearing cheque numbers from 000001 to 000050.

I hereby inform you that the circumstances and details of the incident are as follows: Describe how it happened.

Considering the potential risks or unauthorized financial liabilities that may arise from the use of these cheques, I declare that I shall not be held responsible for any use of them as of the date of this declaration. Accordingly, I kindly request that you take all necessary measures in accordance with applicable laws and procedures, particularly to register an opposition and stop payment of the above-mentioned cheque(s), in order to safeguard my rights and interests.

Signature:



Lost or Stolen Cheque Declaration Form

The Lbanka lost cheque tool helps you prepare a clear declaration when a cheque has been lost, stolen or cannot be found. The purpose of the generated document is to organize the essential information that may be required when contacting your bank or preparing an opposition request.

Losing a cheque should be treated seriously because a cheque contains sensitive banking information and may be misused if it falls into the wrong hands. This tool helps you prepare a structured document with the cheque details, account holder information, circumstances of loss and the request to block or oppose the cheque when needed.

What is a lost cheque declaration?

A lost cheque declaration is a written document used to report that a cheque or cheque book is missing, lost or stolen. It may be used to inform the bank, support an opposition request, or keep a formal written record of the incident.

The declaration usually includes the account holder’s identity, bank account details, cheque number if available, cheque book reference, date of loss, place or circumstances of loss, and a clear request to take the necessary protective measures according to the bank’s procedure.

When should you use this tool?

  • When a single cheque has been lost or stolen.
  • When a cheque book is missing and you need to prepare a written declaration.
  • When you need to organize the information before contacting your bank.
  • When you want to create a printable document for your banking file.
  • When you need a practical template to support a cheque opposition request.

Information you may need before generating the declaration

Before using the form generator, gather as much accurate information as possible. Even if you do not have all cheque details, entering the available information can help create a more complete declaration.

  1. The full name of the account holder.
  2. The bank name and branch, if available.
  3. The account number or RIB linked to the cheque.
  4. The cheque number or cheque book reference, if known.
  5. The date and place where the cheque was lost or discovered missing.
  6. A short description of the circumstances.
  7. Your contact details for follow-up with the bank.

Practical steps after losing a cheque

If you believe that a cheque is lost or stolen, contact your bank as soon as possible through its official channels. The generated declaration can help you present the situation clearly, but the bank may require additional steps, verification or official forms before processing an opposition request.

Keep a copy of the declaration and any communication with the bank. If the missing cheque was already signed, partly completed, or issued to a beneficiary, mention this clearly in the declaration and follow your bank’s instructions carefully.

Important note: this tool is provided for practical document preparation. Lbanka is not a bank and does not block, cancel or oppose cheques directly. Always contact your bank immediately and follow its official procedure for lost or stolen cheques.

Frequently asked questions

What should I do first if I lose a cheque?

Contact your bank immediately through its official customer service, branch or digital banking channel. The declaration generated on Lbanka can help you organize the information, but only your bank can confirm the required opposition procedure.

Can this form block a lost cheque automatically?

No. This form is only a document preparation tool. It does not connect to your bank and does not automatically block or cancel any cheque.

What if I do not know the cheque number?

You can still prepare a declaration with the information you have, such as the bank, account holder, account number, date of loss and circumstances. Your bank may help identify the cheque or cheque book based on your account records.

Should I keep a copy of the declaration?

Yes. Keeping a copy of the declaration and any bank confirmation can help you track the request and maintain a record of the incident.

Frequently Asked Questions

Notify your bank as soon as possible and submit a written complaint.
Yes. If only one check is lost, write the same number for first and last check.
Banks generally accept complaints without a fee. Check your bank policy.
Explain how the loss or theft happened to help the bank process your request.
Your bank may block the checks and guide you on next steps.

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