Do Child Benefit NI credits stop when the child turns 12?

Until what age do the National Insurance credits run?

GOV.UK — Child Benefit says you receive National Insurance credits automatically if you claim Child Benefit and your child is under 12. National Insurance credits: eligibility uses the same test for tax years from 6 April 2010: a parent or guardian registered for Child Benefit for a child under 12 receives Class 3 credits automatically, even if they do not take the money.

HMRC's National Insurance manual (NIM41256) states the legal test in weekly terms: a person is a relevant carer for any week they are awarded Child Benefit in respect of a child under the age of 12. The credit is awarded automatically — there is no extra CF411A form for the claimant.

Which? (updated 6 April 2026) also lists "registered for Child Benefit" as an automatic Class 3 credit. Its childcare section repeats that the child must be under 12. Use GOV.UK if the two sources ever diverge.

Do Child Benefit payments stop when the child turns 12?

No. Payment age is not the credit age. GOV.UK — Who can get Child Benefit says you normally qualify if you are responsible for a child under 16 and you live in the UK. If the child is 16 or over, you normally still qualify while they are under 20 and stay in approved education or training.

GOV.UK — Child Benefit when your child turns 16 is the page that sets the next clock: the award automatically stops on 31 August on or after the 16th birthday if they leave education or training, you do not tell HMRC they are staying, or the course is not a type that qualifies. That page is about 16, not 12.

Should you stop the claim when the child turns 12?

GOV.UK does not treat the 12th birthday as a reason to close Child Benefit. The credits for that child have already stopped once they are no longer under 12. Closing the claim then stops the payment (and any remaining advantages of an open award) without restarting credits that the under-12 rule no longer gives.

If you still have a younger child on the same claim, the under-12 credit rule is about the child who generates the credit week, not about shutting the whole award. If you have only this child, the payment can still continue under the under-16 / under-20 rules above.

If you or your partner is over the High Income Child Benefit Charge threshold, GOV.UK still separates opting out of payments from staying registered. Opting out is not the same as stopping the claim at 12.

What if the claimant no longer needs the credits?

Once the child is 12 or over, there is no under-12 credit left on that child's weeks to transfer. CF411A and Specified Adult Childcare credits only move credits that exist for weeks of an award for a child under 12. See how to transfer Child Benefit NI credits if the gap is in an earlier tax year.

In shortCredits for a child stop when that child is no longer under 12. Payments use the under-16 and under-20 rules. Do not close a claim at 12 because the credit clock has ended.