Submit Evidence for Child Benefit via Online Form
Summary
HMRC has published guidance for Child Benefit applicants on how to submit requested evidence via an online form. Applicants who receive a letter requesting evidence must submit it within 14 days of receiving the letter. If evidence is not provided within this timeframe, HMRC will make a decision based on existing information. Applicants will receive a response letter within 15 working days confirming eligibility.
What changed
HMRC published guidance on 13 April 2026 explaining how Child Benefit applicants can submit evidence requested by HMRC via an online form. The guidance specifies a 14-day deadline for submitting evidence after receiving a letter from HMRC. Applicants must provide their National Insurance number, digital copies of requested evidence, and a photo or scan of any completed forms. If applicants do not submit evidence within 14 days, HMRC will proceed with a decision based on available information.
For affected applicants, this guidance provides clear instructions on the evidence submission process and timelines. Applicants should monitor their post for HMRC letters requesting evidence and respond promptly within the 14-day window. Those found ineligible will receive information on how to challenge the decision, and HMRC may request original documents for verification within 15 working days of submission.
What to do next
- Submit requested evidence within 14 days of receiving HMRC letter
- Sign in or create an account to access the online form
- Provide National Insurance number and digital copies of requested evidence
Archived snapshot
Apr 13, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Guidance
Submit evidence to support your Child Benefit application
Use the online form to send evidence to support your Child Benefit application, if you've been asked for it by HMRC.
From: HM Revenue & Customs Published 13 April 2026 Get emails about this page Print this page If you’ve applied for Child Benefit, you might get a letter asking you to give evidence to show that you’re eligible.
The letter will tell you what evidence you need to send. It might also include a form for you to complete.
When to send evidence
You need to send evidence within 14 days of getting the letter asking for it.
For example, if you got the letter on 12 February, you’d need to submit your evidence on or before 25 February.
If you do not send evidence within 14 days, we’ll make a decision based on the information we already have.
Who can send evidence
Only the person who applied for Child Benefit can send evidence.
Before you start
You’ll need:
- your National Insurance number
- a digital copy of the evidence we asked for
- a photo or scan of the completed form, if we sent you one
Send evidence online
You’ll need to sign in to send evidence. If you do not have sign in details, you’ll be able to create them.
What happens next
We’ll send you a letter within 15 working days, telling you whether you’re eligible. We might also ask you to send original versions of the evidence.
If you’re not eligible, we’ll explain how you can challenge the decision.
Updates to this page
Published 13 April 2026
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