What is variance analysis?

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Variance analysis is the process of comparing actual financial results against a reference point — typically the budget, a forecast, or the same period in the prior year — and investigating the reasons for any significant differences. It is one of the core activities of the finance function, sitting at the heart of the management reporting cycle.

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A variance is simply the difference between what was expected and what actually happened. A favourable variance means results were better than expected. An adverse variance means the opposite. Variance analysis is the process of explaining why.

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Where it applies

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Variance analysis is applied across every major financial metric: revenue (why did we sell more or less than forecast?), costs by category and cost centre (why did we spend more or less than budget?), margins (why did profitability improve or decline?), and working capital metrics like DSO and DPO (why is cash performance tracking differently to plan?).

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At the group level, variance analysis also covers entity-level performance: which subsidiaries are ahead of plan, which are behind, and what is driving the difference?

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Why it matters

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Variance analysis is how financial data becomes a management tool. A report that simply states actuals without context doesn't enable decision-making. Variance analysis provides that context: it tells leaders whether a performance gap is a one-off or a trend, whether it is in their control or driven by external factors, and whether it requires action.

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For variance analysis to be timely and useful, actuals need to close quickly and accurately. When the management pack lands on day three instead of day ten, variance analysis can still drive decisions for the current period rather than just explaining the last one.

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End of 50 glossary pages.

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Total: ~14,000 words across 50 entries.

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All entries follow the Bluecopa glossary format: H2 title, H5 subheadings, 200–300 word body, 4 related links.

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Related: Budget vs Actuals · Management Reporting · FP&A · Financial Close