how many weeks back pay can you claim from child benifits
Straight away! You can only back-date child benefit by three months maximum so the sooner you apply after your child is born the better as it can take up to 12 weeks for your claim to be processed.How much child benefit you get depends on how many children you have.traight away! You can only back-date child benefit by three months maximum so the sooner you apply after your child is born the better as it can take up to 12 weeks for your claim to be processed. How much child benefit you get depends on how many children you have.