Of those surveyed that admitted cheating the self-service machines, 10 per cent were men and 8 per cent were women. For those aged 70 or older, just 2 per cent said they had done this.
Supermarket chain Waitrose in Britain has removed a significant number of its self-service kiosks.
The chain said the move was aimed at speeding up shopping, but a week earlier a survey had revealed one in five shoppers admitted to stealing produce when using self-service tills because of the lack of staff monitoring the area.
Although self-service checkouts do have some technological security by having scales in the bagging area, these measures were easy to circumvent.
Shoppers could swap barcodes on items, scan more expensive vegetables or fruit as lower cost varieties or avoid scanning an item and just placing it on the floor or in an already packed bag. Some even went to the more elaborate lengths of creating their own barcodes to scan.
The Canstar survey showed 70 per cent of shoppers on average across Coles and Woolworths - two main Australian supermarket chains - used self-service machines.