You can find free, official guidance and apply for Child Benefit through GOV.UK, or contact the HMRC Child Benefit Office if you need help with your circumstances. Citizens Advice may also explain the application process and how Child Benefit can provide National Insurance credits, particularly if you are not working. If your income or your partner’s income is above the relevant threshold, check whether the High Income Child Benefit Charge could apply. HMRC makes the final decision based on your information, so check the latest GOV.UK guidance before applying.