Pringles went to court over how much a potato snack had to resemble a potato chip.

A tax dispute over what counts as a crisp

The case turned on a quirk of British value-added tax (VAT): most food was zero-rated, while potato crisps and similar products were generally charged the standard rate. That made the legal category of Pringles worth millions. It was not a special “luxury snack” tax; it was a dispute over whether the product fell within a taxable food category.

Pringles argued that its crisps did not fit the ordinary idea of a potato crisp. They were made from a dough containing potato-derived ingredients, rather than sliced potatoes, and pressed into a uniform, curved shape. The product contained only about 42 percent potato, giving the company an argument that it was more like a formed snack than a conventional crisp.

Why the first ruling did not settle it

A court initially accepted the case for treating Pringles differently, but the tax authorities appealed. The appeal focused on the law’s wording and on the product as it was actually made: potato was a substantial ingredient, and the snacks were shaped, cooked and sold as crisps. The unusual manufacturing process did not, in the appeal court’s view, make them something else for VAT purposes.

That reversal mattered beyond the label on a can. Food businesses have a financial reason to distinguish products that qualify for zero-rating from those that do not, and small differences in ingredients or production can become central evidence in court. But a clever product design cannot guarantee a tax advantage if the law’s category is broad enough to cover the finished food.

The cost of losing the classification fight

Once the appeal went against Pringles, the company was liable for VAT it had not paid while the favorable ruling stood, including back taxes. The case showed how a seemingly everyday question—whether a molded snack is a crisp—can become a costly contest over the boundary between tax categories.