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Why audit outcomes are shaped before the audit starts

Andrew J. Moyser, Partner & Head of Audit, MHA Apr 17, 2026

An efficient audit does not start when the audit team arrives. 

It starts months earlier, with preparation, planning and clarity over what will be required, and when. 

Many audit overruns are not driven by technical complexity or regulatory change. They arise because audits begin before the underlying building blocks are in place. 

Here, we set out the practical steps clients can take to prepare effectively for audit, minimise disruption and avoid unnecessary cost escalation. 

Aqua15 1

Understand the assumptions behind the audit

Every audit is planned and priced based on assumptions. This is unavoidable and entirely appropriate. 

Those assumptions typically include: 

  • Information will be complete, accurate and internally consistent  
  • Key reconciliations will be prepared and reviewed  
  • Accounting policies will be clearly documented and applied consistently  
  • Significant judgements will be identified early  
  • Internal controls will operate as described  
  • The finance team will have sufficient capacity and experience  
  • Information will be delivered in line with agreed timetables  

Preparing for audit means testing those assumptions internally before the audit begins. 

Where assumptions are unlikely to hold - for example due to team changes, system issues or complex transactions - early disclosure allows the audit to be planned more efficiently and avoids disruption later.

Aqua15 2

Identify risk areas before the audit team does

Auditors are required to respond proportionately to risk. Where risk is higher, audit effort must increase. 

The most efficient audits are those where key risk areas are identified and discussed upfront, including: 

  • Non-routine or complex transactions  
  • Areas involving significant judgement or estimation  
  • Impairment indicators or liquidity pressures  
  • Control weaknesses or process changes  
  • Changes in accounting policy or reporting framework  

Early identification allows: 

  • Appropriate audit resources to be planned  
  • Specialists to be involved in a targeted way  
  • Timetables to reflect realistic delivery points  
  • Issues to be resolved before deadlines tighten  

Late identification almost always results in compressed timelines, additional senior involvement and higher costs.

Aqua15 3

Treat the audit timetable as a critical control

Audit timetables are not administrative checklists. They are central to audit efficiency. 

When information arrives late or in fragmented form: 

  • Testing becomes less efficient  
  • Review time increases  
  • Rework multiplies  
  • Senior escalation becomes more likely  

Strong preparation includes: 

  • Agreeing a realistic timetable before year end  
  • Aligning internal deadlines ahead of external ones  
  • Identifying critical path items early (such as tax, valuations and impairment)  
  • Monitoring delivery against timetable in real time  
  • Escalating slippage as soon as it arises  

Early communication of delays allows adjustments to be made calmly and constructively.  

Aqua15 4

Focus on quality of information, not volume

Audit efficiency is driven by the quality of information provided, not the quantity. 

Well-prepared audit input is: 

  • Clearly structured and logically presented  
  • Consistent across schedules  
  • Reconciled to the general ledger  
  • Internally reviewed before submission  
  • Supported by clear explanations of judgement  

Time invested in preparation is almost always recovered through: 

  • Fewer audit queries  
  • Reduced rework  
  • Faster review and clearance  
  • More predictable delivery  

Conversely, incomplete or poorly supported information increases audit effort even where the underlying accounting is sound. 

Aqua15 5

Maintain early and open communication to avoid late pressures

The most difficult audit conversations are those held after work is complete. 

Effective preparation includes establishing a habit of early dialogue when circumstances change, such as: 

  • Unexpected transactions  
  • Changes in trading conditions  
  • Emerging control issues  
  • Delays in key deliverables  

Early discussion allows scope, timing and expectations to remain aligned and avoids unnecessary tension late in the process. 

From a client perspective, transparency creates optionality. It preserves flexibility and reduces the risk of last-minute disruption.

Final reflection

Preparing for audit is not about reducing scrutiny or cutting corners. It is about creating the conditions for an efficient, high-quality engagement. Clients who invest in preparation typically experience: 

  • Fewer surprises  
  • Less disruption to finance teams  
  • More predictable audit timelines  
  • Better control over cost  
  • Stronger audit outcomes  

An efficient audit is not accidental. It is planned, prepared for and actively managed. 

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