Financial statements look backwards for external users. Management accounting looks forwards and inwards — giving managers the numbers they need to run the business. This is where finance becomes genuinely commercial, and it's a key skill for progressing beyond transactional roles.
Management accounts vs financial accounts
- Financial accounts — statutory, historic, for external users (HMRC, investors, Companies House); follow strict rules (UK GAAP/IFRS).
- Management accounts — internal, timely (usually monthly), for decision-making; flexible format, tailored to what managers need.
A typical monthly management accounts pack includes the P&L vs budget, key KPIs, cash position, and commentary.
Budgeting and forecasting
- A budget is a financial plan for a period (usually a year) — expected income and costs.
- A forecast updates expectations during the year based on actual performance.
- Budgets are built bottom-up (departments estimate) and/or top-down (leadership sets targets), then agreed.
Budgets set expectations, allocate resources, and give a benchmark to measure against.
Variance analysis — the heart of it
A variance is the difference between actual and budget:
- Favourable (F) — better than budget (higher income or lower cost).
- Adverse (A) — worse than budget.
The skill isn't calculating the variance — software does that — it's explaining why and recommending action. For example: "Marketing spend is £8k adverse because we ran an extra campaign; it drove £40k of the £30k favourable sales variance, so the overspend was worthwhile."
Good variance analysis:
- Focuses on material variances (big enough to matter).
- Explains the cause, not just the number.
- Recommends a response.
Costing basics
Managers also need to understand costs:
- Fixed (don't change with volume: rent) vs variable (do: materials).
- Contribution = selling price − variable cost — how much each sale contributes to fixed costs and profit.
- Break-even = fixed costs ÷ contribution per unit — the volume needed to cover costs.
Put it to work
Given sales £30k favourable and marketing £8k adverse, write a two-sentence commentary a manager could act on. Then look at finance software & Excel.