@360.accounts: HMRC applies one test to every business expense: was it incurred wholly and exclusively for business purposes? If yes, it reduces your taxable profit and cuts your Corporation Tax bill. If there's any personal element, the claim fails. Even partially. Six categories that pass the test: 1. Office costs 2. Staff costs 3. Business travel 4. Professional fees 5. Marketing 6. Insurance and relevant training What doesn't qualify? Client entertainment, personal travel, and anything with a dual personal-business purpose. The difference between a legitimate claim and a disallowed one is usually documentation. Keep the receipt. Note the business purpose at the time, not at year-end. Every unclaimed allowable expense is tax you've overpaid. Most directors miss at least one category. Which one are you missing? 💡