From BOGOFs to multi-buys, special offers in supermarkets tempt the majority of shoppers to spend 21% more than they intended to  

According to research from the Money Advice Service, more than three quarters of shoppers (76%) regularly spend more than they mean to on a food shop because they are enticed by special offers and deals – parting with an extra £11.14 on average per shop. With the average person now going to the supermarket more than twice a week, they could be forking out an additional £1,274 over the course of a year 

Yet because supermarket deals are often cleverly displayed and phrased, we don’t always work out if they are a good deal – for instance, by comparing the value of a single item versus an item in a multipack many shoppers could avoid falling into the trap of buying something on offer even when there is a better deal available. 

To further illustrate this, the Money Advice Service asked more than 2,000 consumers to select the best value options when presented with four sets of offers commonly found in the supermarket. Just 2% correctly identified the best deals in all four cases.  

After special offers, close to six in 10 (59%) shoppers say shopping on an empty stomach makes them spend more. These extra items falling into the trolley vary between the genders. Women tend to go for snacks such as chocolate or sweets (60% vs 51% of men) and baked goods (43% vs 35%) — whereas men are more likely to buy meat (26% vs 21% of women), alcohol (27% vs 17%) and ready meals (24% vs 19%). 

Seeing a deal at the tills or shopping with children also results in the average shopper spending more.  Around a quarter (23%) of shoppers say they will pick something up at the till display – spending an additional £16.28 in the process on average. ‘Pester power’ also adds-up with a similar number of shoppers (26%) giving into their children and buying £15.50 worth of items each time they hit the shops to keep the children happy.  

Shoppers in the UK can be susceptible to influence when walking through the supermarket, with only half (51%) of those who do the weekly shop managing to stick to a budget. Mental state also has a notable effect. Shopping when tired and bored will also result in the average shopper buying three additional items – spending up to £14.53 extra each time. 

Preparation is the best way to guard against overspending. Those who always make a shopping list are three times less likely to overspend than those who don’t, spending close to £200 less on groceries over the year. Of those who make a shopping list or work out the meals they’re going to make before they go to the supermarket, most (61%) say it makes them feel more in control of their money. 

When it comes to checking prices, look at the price per unit or compare the prices of similar weight products to make sure you are getting value for money. More than 10p of every £1 we spend goes on food, so being savvy with spending in this area will really be noticed.