How to Find Child Benefit Number Quickly in the UK?

Getting your Trinity Audio player ready...

Table of Contents

If you’ve been asked for your Child Benefit number and you’re not sure where to find it, you’re not alone. Many parents in the UK encounter this issue when filling out forms, verifying benefit status, or making tax-related updates. Your Child Benefit number is essential for identification and processing your claims correctly.

It typically starts with “CHB” followed by eight numbers and two letters. This unique reference is issued by the Child Benefit Office and is tied directly to your claim.

Whether you’ve recently moved, misplaced official documents, or simply don’t remember receiving one, retrieving your number can be straightforward if you follow the right steps. From checking previous letters to contacting HMRC directly, there are several ways to locate or recover it quickly.

In this guide, we’ll walk you through each method so you can find your Child Benefit number efficiently and with confidence.

Why You Might Need Your Child Benefit Number?

Why You Might Need Your Child Benefit Number

Your Child Benefit number is more than just a reference code. It’s a crucial piece of information used in a variety of official and administrative scenarios. Whether you’re updating HMRC records or applying for additional benefits, having this number readily available can save time and prevent delays.

You may be asked for your Child Benefit number when:

You are applying for other financial support that requires proof of existing benefits
Completing tax forms or dealing with the High Income Child Benefit Tax Charge
Submitting applications for childcare, schooling, or housing support
Proving entitlement for passport applications or family-related matters
Updating personal or banking details in your Child Benefit account
Verifying income for Universal Credit or other low-income supports

This number is your official link to HMRC regarding your Child Benefit claim. It also ensures accuracy when identifying your account in future communications. In cases where another benefit or authority needs proof that you’re receiving Child Benefit, your reference number can serve as instant verification.

Make sure to store this number securely. It should be kept along with other important documents, especially because you’ll need it if you ever have to reclaim or amend your benefits. Safeguarding your reference number avoids unnecessary stress in the future.

Where to Locate Your Child Benefit Number in Existing Documents

The quickest and most reliable way to find your Child Benefit number is by checking the official documents you received when your claim was approved. HMRC issues a series of letters that confirm your entitlement and payment details, and your number is printed clearly on these.

Your Child Benefit number can be found in:

Your Child Benefit award notice (sent when your claim is approved)
Any follow-up letters regarding changes to your benefit, payments, or account updates
Tax credit notices if you receive other benefits alongside Child Benefit
Documents confirming benefit adjustments or revalidation requests

The number itself will begin with the letters CHB, followed by a set of eight digits and two trailing letters. For example, it may look like CHB12345678 AB.

If you’ve received benefit correspondence in the past, your reference number should be easy to locate in the top section of the letter, usually near your address or personal information.

Make a habit of storing these letters in a secure place like a personal folder, drawer or cloud backup. If you’ve gone digital with HMRC, check your online personal tax account for downloadable copies of your correspondence, where your number may appear.

Always retain these documents safely, as they serve as key proof of entitlement for both current and future benefits-related purposes.

Lost Your Child Benefit Number? Here’s What You Can Do

Misplacing your Child Benefit number can be stressful, especially when it’s urgently needed. Fortunately, there are multiple steps you can take to retrieve it without too much hassle.

Begin by checking the most common places where your documents might be stored.

Look through personal files, drawers, or folders where you keep important paperwork
Search your email inbox if you’ve opted for digital communication with HMRC
Check your personal tax account on GOV.UK if you’re registered

If you’ve recently moved, ask your previous landlord or check with the postal service for redirected mail. Many people forget that their benefit letters might have been sent to a previous address.

If you still can’t find your number, don’t panic. You can contact the Child Benefit Office to recover it directly. You’ll need to confirm your identity by providing key details like your full name, date of birth, National Insurance number and address.

If you’re the partner of someone receiving Child Benefit, they will need to make the request themselves unless you are an authorised representative. Always act promptly if you think your documents have been lost. Timely retrieval can prevent delays in accessing other services and help keep your benefit records up to date.

How to Request Your Child Benefit Number from HMRC?

How to Request Your Child Benefit Number from HMRC

If you’ve exhausted all efforts and still can’t locate your Child Benefit number, the next step is to request it directly from HMRC. There are multiple ways to do this depending on your preference and accessibility needs.

Contacting by Phone

You can call the Child Benefit Helpline on 0300 200 3100. It’s open from Monday to Friday, 8am to 6pm. If you’re calling from outside the UK, use +44 161 210 3086.

When calling, make sure you have your National Insurance number and other personal details ready to answer security questions. This will help speed up the process and confirm your identity.

Using the Online Enquiry Form

HMRC offers an online enquiry form that allows you to request your Child Benefit number. Be specific in your request by stating that you need the Child Benefit reference number, and if someone else is requesting it on your behalf, mention their role and relationship. This online service is especially useful if you prefer not to call or are contacting them outside business hours.

Textphone and Accessibility Support

If you use a textphone, the dedicated number is 0300 200 3103. There is also support via Relay UK for those who are deaf, hard of hearing or have speech difficulties. Simply dial 18001 then 0300 200 3100 to access the service. These accessible methods ensure everyone can reach HMRC regardless of communication barriers.

What Information You’ll Need When Contacting Them?

To retrieve your number, be ready to provide:

Your full name and date of birth
Your National Insurance number
Your child’s name and date of birth
Current and previous address (if you’ve moved)
Any recent claim or benefit reference numbers you still have

HMRC may ask for additional proof depending on your situation, especially if you’re acting on someone else’s behalf. With the right information at hand, you can expect a quicker response and get your number securely sent to you.

Can You Use Other Documents as Proof of Child Benefit?

In some situations, you may not need your Child Benefit number specifically, but rather proof that you receive the benefit. Fortunately, there are alternative documents that can serve this purpose effectively.

You can use the following as accepted proof:

Your most recent Child Benefit award notice
A bank statement showing Child Benefit payments
Your latest tax credit award notice if Child Benefit is included

These documents can be shown to local authorities, schools, or other service providers requesting proof of benefit. However, the organisation requesting proof may have specific requirements about how recent the documents should be or in what format they must be presented.

Be aware that HMRC does not provide a separate written confirmation of Child Benefit entitlement beyond the standard award notice. If you’ve lost this and cannot access your digital HMRC account, you’ll need to request a replacement or ask the third party if other documents will suffice.

Always check with whoever is requesting the proof to ensure they will accept these documents as valid. Preparing in advance helps avoid last-minute issues or claim rejections.

What If You Claimed Child Benefit After 2021?

What If You Claimed Child Benefit After 2021

If you first applied for Child Benefit on or after 23 February 2021, there’s a slight change you should be aware of. You may not have received a traditional Child Benefit number as earlier applicants did.

This is because the award notice issued by HMRC acts as your main proof of eligibility and replaces the older method of issuing a separate reference number. The award notice contains your benefit details, payment breakdown, and identification, and in most cases, that will be sufficient for verification.

Here’s what to consider if you claimed after February 2021:

You likely won’t have a CHB number if it’s not shown in your documentation
Keep your award notice safe, as it acts as primary evidence
Always check with the requesting organisation to confirm what form of proof they will accept

If someone asks specifically for your Child Benefit number and you can’t find it, explain that your claim began after the update and the award notice serves as your entitlement confirmation. If needed, contact HMRC to confirm this and request advice on what to provide as proof.

Understanding this distinction is key to preventing confusion, especially when submitting forms for education, tax or additional benefits.

Final Checklist to Quickly Find or Retrieve Your Child Benefit Number

Before wrapping up your search, it’s helpful to go through a final checklist to ensure you’ve explored all possible options for locating or retrieving your Child Benefit number.

Here’s a simple breakdown to follow:

Check your award notice or official letters for CHB reference
Review your tax credit letters or bank statements
Search your HMRC personal tax account online
Use the HMRC app if installed on your device
If lost, call 0300 200 3100 or submit the online enquiry form
Make sure you have your National Insurance number and personal details ready
For accessibility, use the textphone or Relay UK options

Keeping a physical and digital copy of your documents is strongly advised. Store your benefit letters in a secure folder and back up digital files in cloud storage if possible. A little preparation now saves you from a lot of hassle later, especially when official documentation is urgently required.

Conclusion

Finding your Child Benefit number doesn’t have to be a complicated task. Whether you’re digging through paperwork or contacting HMRC directly, there are clear steps to follow to retrieve or confirm your reference number.

Keeping your documents organised and easily accessible can prevent delays in accessing services or verifying benefits. Even if you’ve applied recently or don’t have a CHB number, alternative documents can provide valid proof.

Always check with the requesting organisation to see what they accept. With the right information and resources, you’ll be able to find your Child Benefit number quickly and confidently whenever you need it.