A study by Compare the Market has revealed that most families will have an argument once every two or three days, with families that have kids in primary school revealing that 13:08 is the peak time for a falling-out.
And nearly a third (30 per cent) of all arguments are caused by how much money is being spent, with the average family spending £542.
Julie Daniels, Head of Rewards at Compare the Market, said: "With the holidays just underway, families could already be finding it difficult to all agree on activities or decide on days out to keep the whole household happy, causing tensions to mount. Planning lots together as a family is a great way to reconnect."
Dr Sam Wass, child psychologist from Channel 4's 'The Secret Life of 4- and 5-Year-Olds', added: "Although most children look forward to the summer holidays, they can also be a tough time for many families. Long periods of unstructured time can lead to lots of disagreements! Many parents worry about the mounting costs that come with entertaining their children, with almost a quarter (24 per cent) citing it as a cause of squabbles."