The £1 That Changes Your Tax Bill: What Corporation Tax Really Tests in a Startup
A founder budgeting for “small company” tax treatment can still get blindsided by the mechanics of the UK system: a business that ends its accounting year with £50,001 of profit sits in a different tax regime to one that ends with exactly £50,000. That single pound doesn’t just nudge the bill upward — it flips the calculation from a flat, easy-to-model rate into a tapered one that most founders have never actually worked through. If you’re testing whether a business idea holds up, that distinction is worth understanding before you hit it, not after.