Fall in number of child benefit claims for babies in Buckinghamshire
Anti-poverty campaign group Turn2Us said parents being unable to register their newborns during the pandemic is likely the main cause of the large drop seen across the UK.
HM Revenue and Customs data shows families were receiving the benefit for 3,495 children less than one year old in Buckinghamshire as of August last year.
This was 9% fewer than at the same point in 2019, and a bigger drop than the 6% seen the year before.
The fall among children less than one was the largest of all ages in Buckinghamshire.
Across the UK, the number of child benefit claims for infants fell by 9% to 513,445, which was also the biggest decrease of all children up to 19.
HMRC says lower birth rates may have been a factor, but the previous year's drop in claims for children aged less than one was just 4%.
Many councils paused birth registrations during the pandemic, meaning parents have been unable to obtain a birth certificate which is needed to claim child benefit – the money paid to those responsible for bringing up a child.
Though HMRC did allow parents to do so without one, Turn2Us said this is likely the main reason for the "significant drop" in claims for babies.
Sara Willcocks, head of external affairs at the charity, added: "While child benefit can be backdated up to three months, it is a serious concern that so many new parents might have missed out on hundreds of pounds.
"Over the last decade, child poverty has risen dramatically and we have seen baby banks pop up across the country as so many parents struggle with the costs of raising a child.
"This is why it is vital parents claim all the support they are entitled to."
The anti-poverty group has called on the Government to increase child benefit by at least £10 per child per week, and publicise the scheme more widely to increase uptake.
The benefit is increasing from £21.05 to £21.15 for the eldest child from April 12, and from £13.95 to £14 per week for each subsequent child.
Overall, the number of children for whom benefits were being received across the UK fell by just 1% between both 2018 and 2019, and 2019 and 2020.
In Buckinghamshire, the figure fell from 90,015 to 88,815 between August 2019 and last year – a drop of 1%.
The Child Poverty Action Group said it is "very concerning" that changes to the benefit in recent years – including a cut-off for higher earners – have led some parents to think they are not entitled.
Chief executive Alison Garnham added: "It may also be that in lockdown while parents are not registering births in person or having face-to-face benefits advice, they don’t get the information and help they need to claim.
"Child benefit is core money for the poorest families, not an extra, so if parents are not getting their entitlement it’s deeply worrying for the well-being of children."
An HMRC spokesman said it is important that new parents remember to register for child benefit, even during these "unprecedented times".