The associated-companies trap: separate companies divide your CT rate band
Corporation tax is 25% on profits above £250,000 and 19% on profits up to £50,000, with Marginal Relief between those thresholds. But the £50,000 and £250,000 limits are divided by the number of associated companies. A group owner with four separate pharmacy companies has effective thresholds of £12,500 and £62,500 per entity, not £50,000 and £250,000. Every store then sits in the marginal band or above it from a much lower profit level. Most single-store operators are unaware of this until they open their second store.