The Most Delicious Tax Battle in British Legal History
On the surface, it sounds absurd: a corporate giant and the UK tax authority, locked in a tribunal room, debating the fundamental nature of a small disc of sponge, jam, and chocolate. But the 1991 VAT tribunal case of McVitie's vs HMRC was entirely serious — and the outcome had real consequences for the price of an enormous category of British food.
At stake was a question of classification. In UK VAT law, cakes are zero-rated (no VAT charged to the customer). Biscuits are generally also zero-rated — except for biscuits that are fully or partially covered in chocolate, which are standard-rated at 20%. A chocolate-covered biscuit costs more because HMRC takes a 20% slice.
HMRC's position: Jaffa Cakes are a type of biscuit, partially covered in chocolate. Therefore: standard-rated. Pay up.
McVitie's position: Jaffa Cakes are miniature cakes. Therefore: zero-rated. Absolutely not.
How Do You Tell a Cake from a Biscuit?
The tribunal judge had to establish criteria. The arguments were surprisingly sophisticated:
The Staleness Test
This was the key insight that ultimately won the case. When a biscuit goes stale, it goes soft. When a cake goes stale, it goes hard. Leave a Digestive out overnight and it becomes soft and slightly chewy. Leave a slice of Victoria sponge out and it dries and hardens.
Jaffa Cakes, when left exposed to air, go hard — just like cake. This single characteristic was considered strong evidence that Jaffa Cakes belong in the cake family.
Ingredients and Texture
The base of a Jaffa Cake is made from a light, aerated sponge — the same type of mixture used in cakes. Biscuits are typically made from a shortcrust or other dough with a higher fat-to-flour ratio and no leavening. The Jaffa Cake sponge is closer to Madeira cake than to shortbread.
Size and Eating Context
HMRC argued, with some creativity, that Jaffa Cakes are the "size of a biscuit" and eaten in the manner of a biscuit (as a snack, by the handful, from a packet). The judge was unpersuaded — plenty of small cakes exist, and eating habits alone don't determine tax classification.
The Chocolate Question
HMRC's original argument rested on the chocolate coating. The tribunal examined whether the chocolate constituted a "coating" of a biscuit or a "decoration" on a cake — another genuinely contested distinction. The ruling found that the context of a cake being dressed with chocolate didn't trigger the same classification rules as a chocolate-coated biscuit.
The Verdict: Jaffa Cakes Are Cakes
The tribunal found in favour of McVitie's. Jaffa Cakes are zero-rated for VAT. They are cakes. This ruling has stood, and HMRC has not successfully challenged it since — though the principle is periodically revisited in cases involving other products.
Why This Matters for Brownies
The Jaffa Cakes case helped establish the framework that HMRC and tribunals use when categorising sweet baked goods. Brownies, being made from a batter (not a dough), leavened, and baked in a tin — are classified as cakes, and are therefore zero-rated for VAT. A brownie company took the question of brownie classification to HMRC and successfully argued that brownies fall firmly in the cake category — meaning no VAT is added to the purchase price.
This is good news for brownie lovers. When you shop our brownies, you're not paying 20% VAT on top. The price you see is the price you pay, with no hidden tax uplift.
The Ongoing Importance of the Cake/Biscuit Line
HMRC continues to scrutinise baked goods classifications. The rules have real commercial consequences, and the line between cake and biscuit (and between zero-rated and standard-rated) isn't always obvious. Flapjacks, for instance, have had their own classification questions. Teacakes, caramel shortbread, and various confectionery-adjacent products have all been subject to assessment.
The lesson from McVitie's is that classification is about substance, not surface appearance. And in the world of baked goods, sometimes the most important question really is: does it go hard or soft when it's stale?
For everything you need to know about our cakes (and why they're VAT-free), visit our about page or shop the full range from Bournemouth Brownie Company.
