CIPD estimates a bad hire costs 30–400% of that person’s first-year salary once recruitment, training, error correction and replacement are all counted. On a UK bookkeeper’s average £26,996 salary, that’s a realistic range of roughly £8,000 to £108,000 — before counting the compliance risk of inaccurate VAT records or missed HMRC deadlines. Here’s where that cost actually comes from, and how a dedicated offshore hire with a replacement guarantee reduces the risk.