Is This Error Material? Audit Materiality Explained

Whose judgment, not just how big

Picture a misstatement of ₹20 lakh. A junior says it’s a lot of money — adjust it. A manager says against this company’s profit it’s small — leave it. Both are arguing about size. The real question auditing standards ask is different: not “is it big?” but “would it change what a reader of the financial statements decides?” That reader is an investor, a lender, a supplier deciding whether to extend credit — not the auditor, and not management.

Setting a number from a benchmark

To get from that definition to an actual figure, auditors pick a benchmark users care about — profit before tax for a profit-making company, revenue or total assets if profit is too unstable — and apply a percentage. Neither the benchmark nor the percentage is prescribed by any standard; a firm chooses and documents its own.

Three thresholds come out of that one benchmark figure:

• —Overall materiality — the benchmark times the chosen percentage. Errors above this threshold have to be corrected, or they affect the audit opinion.
• —Performance materiality — set lower than overall materiality, so several smaller errors that individually look immaterial don’t add up to more than the overall threshold once combined with whatever the audit didn’t catch.
• —Clearly trivial threshold — a floor below which errors are so small they don’t need to be tracked on a running list at all.

A worked example

In a teaching case built around a fictional manufacturer with ₹9.4 crore recorded profit before tax, using 5% of profit before tax gives overall materiality of ₹47 lakh. Performance materiality, set at 75% of that, is ₹35.3 lakh. The clearly trivial threshold, at 5% of overall materiality, is ₹2.4 lakh.

Testing three errors against those thresholds: a ₹2 lakh rounding difference is clearly trivial — it doesn’t go on the list. A ₹20 lakh inventory error is below performance materiality — not a reason to panic, but it’s recorded and counts toward the running total of misstatements. A ₹50 lakh revenue error is above overall materiality — it has to be corrected, or it affects the opinion.

Why size isn’t everything

Some small amounts matter because of what they are, not how much they are. A small change that pushes a ratio across a loan covenant. A small change that turns a loss into a profit — users notice that direction change whatever the size. A transaction with a related party, which is sensitive regardless of amount. Anything suggesting fraud, because intent changes the meaning of any figure. When nature makes an error important, size stops being the deciding factor.

A common misunderstanding

Clients often ask: you found an error below materiality — then why fix it? The answer is that materiality decides what would change the audit opinion, not what gets corrected. Auditors typically ask for every error above the clearly trivial level to be corrected; whether the leftover, uncorrected errors matter in aggregate is worked out at the end, against performance and overall materiality.

And materiality isn’t fixed at planning and forgotten — if the benchmark figure moves significantly during the engagement, materiality is reconsidered on the revised number, since a threshold set on an earlier, higher profit figure may now be too coarse.