Not claiming Child Benefit is one of the most costly mistakes parents make — even if you don’t need the money. Here’s why.
For the wider claiming, rates and tax context, use the main Child Benefit hub.
Why You Must Always Claim
There are three reasons to claim Child Benefit regardless of income:
- National Insurance credits — protects your State Pension
- Child’s NI number — automatically issued at age 16
- Child Benefit payments — £27.05/week for the first child, £17.90 for each additional child (2026/27 rates)
Even if you earn too much to keep the money (High Income Child Benefit Charge), reason 1 alone makes claiming essential.
The NI Credits — Why They Matter
How It Works
The parent who claims Child Benefit receives Class 3 National Insurance credits for each complete tax year they care for a qualifying child under 12.
You need 35 qualifying years of NI contributions for the full new State Pension (£241.30/week in 2026/27, or £12,547.60/year).
The Cost of Not Claiming
Each missing qualifying year reduces your State Pension by approximately:
| Missing Years | Annual Pension Loss | Over 20-Year Retirement |
|---|---|---|
| 1 year | ~£358.50 | ~£7,170 |
| 5 years | ~£1,792.50 | ~£35,850 |
| 10 years | ~£3,585 | ~£71,700 |
A stay-at-home parent caring for children from birth to age 12 could miss up to 12 years of NI credits if Child Benefit isn’t claimed — a potential loss of around £86,000 in State Pension income over a 20-year retirement (12 missing years × ~£358.50/year × 20 years).
Who Gets the Credits?
The credits go to the parent who makes the claim (usually the main carer). If both parents work and pay NI through employment, the credits are less critical — but still act as a safety net for career breaks.
Important: If one parent stays home while the other works, the stay-at-home parent should be the one receiving the NI credit. If the claim is in the working parent’s name, the credits are wasted (they already have NI from employment). You can transfer the credits using form CF411A.
The High Income Child Benefit Charge (HICBC)
How It Works
If either parent earns over £60,000, you may have to pay back some or all of the Child Benefit through the HICBC:
| Higher-Earning Parent’s Income | Percentage to Repay |
|---|---|
| Under £60,000 | 0% — keep all of it |
| £60,000 — £80,000 | Gradual increase (1% for every £200 over £60,000) |
| Over £80,000 | 100% — repay all of it |
The Solution: Claim But Opt Out
You can claim Child Benefit and immediately opt out of receiving payments. This means:
- NI credits are protected
- Your child is registered for their NI number
- No money is paid to you
- No HICBC to repay
- No need to file Self Assessment just for HICBC
This is the recommended approach for higher earners.
How to Claim Child Benefit
- Claim within 3 months of birth — you can backdate up to 3 months only
- Fill in form CH2 online at gov.uk or by post
- You’ll need your child’s birth certificate
- To opt out of payments, tick the relevant box on the form
If you’ve already missed claiming, you can still claim now — but you cannot backdate more than 3 months.
What If You Haven’t Claimed for Years?
The Good News
You can claim now and receive NI credits going forward (while your youngest qualifying child is under 12). Your child is registered for their NI number.
The Bad News
You cannot backdate Child Benefit payments beyond 3 months. Any NI credit years already missed are gone — unless you pay voluntary NI contributions to fill the gaps (Class 3 contributions, £18.40/week in 2026/27 per missing week).
How to Fix NI Gaps
- Check your NI record at gov.uk/check-national-insurance-record
- Identify any gaps in qualifying years
- Contact HMRC on 0300 200 3500 to discuss voluntary contributions
- You can typically fill gaps for the last 6 tax years (extended deadline rules may apply — check current transitional arrangements with HMRC)
Common Mistakes
Mistake 1: Not Claiming Because of HICBC
The NI credits can be worth far more than the HICBC charge. Even if you repay 100% of the Child Benefit, the NI credits are free and protect your pension. Always claim, opt out of payments if earning over £60,000.
Mistake 2: Claiming in the Wrong Parent’s Name
If one parent stays home, they need the NI credits. The claim should be in their name, or the credits should be transferred using form CF411A.
Mistake 3: Assuming NI Credits Continue Past Age 12
The Child Benefit NI credit stops once your youngest qualifying child turns 12 — it does not extend into their teenage years even if Child Benefit itself continues (for example, because they’re in approved education up to age 20). If you’ll still be out of the workforce after your youngest turns 12, check your NI record and consider other credits (such as Carer’s Credit) or voluntary contributions to avoid a gap.
Mistake 4: Not Claiming for a Second Child
Each child counts. Claim for every eligible child.
Specified Adult Childcare Credits
If grandparents or other family members provide childcare for a child under 12 while the parents work, the NI credits from Child Benefit can potentially be transferred to the carer using form CA9176. This protects the grandparent’s State Pension if they’re not working.