A materiality threshold is the amount above which a misstatement, alone or combined with others, could reasonably influence the economic decisions of users of the financial statements, and it sets how deeply auditors and finance teams test the numbers.
The materiality threshold is governed by ISA 320, the international auditing standard, applied in France through NEP 320. The standard leaves the amount to professional judgement, but practice relies on a benchmark and a percentage. Common benchmarks are:
- 5% of profit before tax, for profitable and stable companies
- 0.5% to 1% of revenue, when profit is volatile or close to zero
- 1% to 2% of total assets, for asset-intensive entities
Auditors then derive two lower thresholds. Performance materiality, typically 50% to 75% of overall materiality, sizes the testing so that undetected errors do not add up to a material amount. A clearly trivial threshold, often 3% to 5% of materiality, sets the level below which differences are not even accumulated.
Materiality is a threshold for an audit opinion, not a tolerance for losses. An overcharge of 400 euros a month on one supplier is immaterial to any set of accounts and still costs close to 5,000 euros a year, which is what Astotel found on a single supplier. A materiality threshold also frames flux analysis and the scoping of a risk and control matrix.
Phacet applies controls below any materiality threshold. Pre-payment controls check every invoice line instead of a sample, and discrepancies go to exception-based review, so small recurring errors are corrected before they are paid rather than written off as immaterial.
