Joint audit

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A joint audit is a financial audit in which two auditing firms jointly form an opinion on the financial statements of a group or organization. In France, joint audit became a legal requirement in 1966.^[1] In South Africa, a joint audit is mandatory for firms operating in the financial services sector. Joint audits are used in India, Denmark, Germany and Switzerland. Joint audits also takes place in the Public sector, including in the UK.

In the United States, a joint audit may be a tax audit performed by the Internal Revenue Service (IRS) which includes various specialists within the IRS.^[2]

The state of Maryland has a joint audit committee, comprised of members of the State House of Representatives and State Senate, responsible for reviewing the legislative audit.^[3]

A joint audit is fundamentally different from a dual audit In a dual audit, one auditing firm (or sometimes more) audits parts of a group or organization, then reports to another auditing firm that ultimately signs off on the audit.

A typical joint audit has audit planning performed jointly and fieldwork allocated to the two audit firms. This work allocation may be rotated after a set number of years to mitigate the risk of over familiarity. Work performed by each firm is reviewed by the other, in most cases by exchanging audit summary reports. The critical issues at group level, including group consolidation, are reviewed jointly and there is joint reporting to group management and the audit committee.

1 Auditor competence and independence
2 Market competition
3 Costs
4 References

[edit] Auditor competence and independence

Joint audit addresses two underlying principles of audit quality: auditors’ competence and independence. It enables a benchmarking of audit approaches and affords audit committees the opportunity to pick and choose the best local firms from within two global audit networks. Audit committees and investors have additional assurance that the audit opinion with which they are presented is complete. A joint audit allows rotation of audit firms, and retains knowledge and understanding of group operations in a way that minimises the disruption caused when a single audit firm is changed. The rotation of audit firms is equally likely to mitigate the risk of over familiarity. Two firms can also stand stronger together against aggressive accounting treatments. In this way, joint audit effectively becomes a guardian for audit quality. The benchmarking that takes place between the two firms raises the level of service quality.

[edit] Market competition

A joint audit has a further benefit in that it can encourage more competitive between audit firms. Despite the fact that two Big Four firms can still be used on a joint audit, there is an opportunity for companies to be more willing to engage other firms in the process. The Big Four then becomes the best seven or eight, as more firms are given the opportunity to demonstrate their capabilities, while clients can retain a Big Four signature where they feel it is needed. A recent report produced by consultants London Economics for the European Commission highlighted that France and Denmark (two countries with joint audits) are the two least concentrated audit markets in Europe.

Some critics believe that it is difficult for two firms, who outside of the joint audit are competitors, to easily co-operate with each other during the audit. The degree of co-operation, and its effectiveness, is essentially down to the spirit in which the two audit firms approach the joint audit. If they approach the audit with a willingness to work together to provide a company’s shareholders with what they truly value – namely confidence in the financial position of the company in which they are investing – communication will not be a problem. If they favour competition over collaboration, the outcome is poor.

[edit] Costs

Increased costs is the most commonly-cited objection to joint audits. Joint audit adds approximately 10% to audit time, mostly at the highest levels of the audit team (managers and partners). In the longer term, it could bring about a reduction in audit costs as a result of (1)increased market competition, and (2) benchmarking of prices and efficiencies between the two joint auditors by the Audit Committee of the audited organization.

Joint audit delivers increased reporting on audit time and rates applied across the group. A recent comparative analysis of audit fees between Germany and France shows that companies with joint audit pay significantly less for their audit than companies without joint audit.^{[citation needed]}

Joint audit increases time spent by the senior staff on the audit team, and the senior management of the group or organization.