An accountant notices a payment that does not fit the company’s usual pattern. The supplier is unfamiliar, the description is vague, and the amount is higher than comparable expenses. When the accountant asks for supporting documents, the explanation is incomplete.
The business owner now faces a decision. Should the accountant keep asking questions? Should the department manager explain the purchase? Does the matter need to go to a director, human resources, or an independent specialist?
An unusual expense can have an ordinary explanation. It might reflect an incorrectly coded payment, an urgent purchase, or documentation that has not reached finance. It can also reveal a duplicate payment, an unauthorised commitment, or a more serious concern.
The appropriate response begins with establishing what is uncertain and assigning someone suitable to resolve it. The person who notices the transaction is not automatically the right person to lead every stage of the review.
An Unusual Expense Is a Question, Not a Conclusion
An expense may stand out because of its amount, timing, supplier, or description. None of those features alone proves that the payment was improper.
A large consulting invoice could relate to a genuine project that finance has not been told about. A weekend purchase might have been needed for emergency repairs. Several similar payments may represent separate deliveries rather than duplication.
The accountant should describe the concern precisely. “This payment has no supporting invoice and the approver is unclear” is more useful than “this looks fraudulent”.
Neutral language helps the business investigate the actual issue. It also reduces the risk of damaging an employee’s reputation before the relevant facts have been checked.
Clarify What Has Actually Been Flagged
Before assigning a reviewer, management should understand the transaction’s status. Is it an unpaid invoice, a payment already made, an employee reimbursement, or an accounting entry with no cash movement?
The distinction affects what needs to happen next. A duplicate entry may require an accounting correction, while a duplicate payment may also require contact with the supplier and recovery of funds.
Management should also identify what evidence is missing. The uncertainty could concern the business purpose, the approval, whether goods were received, or the identity of the recipient.
A short factual summary provides a useful starting point. It should record the amount, date, parties involved, documents available, and specific questions requiring answers. This helps prevent an initially narrow query from becoming an unfocused search.
Let Finance Perform the Initial Accounting Checks
The accountant is often well placed to carry out the first checks within their role. These can establish whether the issue results from incomplete records or a routine processing error.
For example, finance can compare the payment with the supplier ledger, check whether the invoice was recorded twice, and confirm whether an existing purchase order explains the amount. It can also look for a credit note or earlier advance payment.
These checks should be documented so that another reviewer can understand what was examined. If the issue is resolved, the explanation and any correction should remain linked to the transaction.
If the available records do not resolve the concern, the accountant should escalate it through the appropriate channel. An external bookkeeper, in particular, may lack the authority or access needed to examine employee conduct or wider operational arrangements.
Assign an Owner Who Can Review the Matter Objectively
For a straightforward documentation issue, a finance manager or another manager with suitable authority may coordinate the review. The person should understand the process and be able to obtain relevant information.
However, the reviewer should not be placed in the position of assessing their own decisions without independent oversight. If the concern involves an expense they requested, approved, or benefited from, another person should lead.
In a small company, a director may be the appropriate owner. If the concern involves that director, it may need to go to another uninvolved director, the board, or an independent adviser through the company’s governance arrangements.
The principle is practical: the reviewer needs sufficient authority, relevant competence, and enough independence to assess competing explanations fairly.
Define the Scope Before Expanding the Review
A review needs a clear question. Without one, staff may spend considerable time collecting material that does not help resolve the concern.
Suppose the accountant identifies an unexplained S$8,500 payment to a new supplier. The initial scope could be to establish what was purchased, whether it was authorised, whether the business received it, and whether the payment reached the correct recipient.
If those checks reveal similar unexplained payments, the scope may need to expand. That decision should be recorded, including the reason and who authorised the additional work.
A defined scope also helps manage expectations. A review of one payment does not provide assurance that every transaction with that supplier, department, or employee has been examined.
Preserve Relevant Records Before Making Corrections
Once a concern requires further review, the company should retain the relevant records in their existing form. This can include invoices, approval records, purchase orders, payment confirmations, and authorised business-system logs.
Staff should avoid overwriting original explanations or deleting an entry simply to make the accounts look tidy. If a correction is necessary, it should leave a clear record of the original entry, the change, and the reason.
Access to the review material should be controlled. Where electronic evidence may be important, appropriate IT or specialist support can help preserve it without unnecessary alteration.
The company should use lawful, authorised methods to obtain information. A financial query does not give a reviewer unrestricted permission to search personal accounts or collect unrelated employee information.
Ask for an Explanation Without Leading the Answer
The employee or manager involved may hold the missing context. A fair review should give them an opportunity to explain the transaction and provide supporting records.
Questions should focus on facts. What was purchased? Who requested it? What work did the supplier perform? Where were the goods delivered? Which approval applied?
An open question is more useful than an accusation framed as a question. Asking why someone “hid a payment” assumes concealment before the review has established what happened.
The explanation should then be checked against available evidence. A confident answer is not automatically sufficient, but an incomplete initial response should not automatically be treated as dishonesty either.
An Example: The Unfamiliar Consulting Invoice
Imagine that an accountant flags a S$12,000 consulting payment. The invoice says only “business support”, and the supplier does not appear in previous records.
The operations manager explains that the supplier helped prepare a major customer proposal. That explanation provides a possible business purpose, but the reviewer still needs to establish the agreed scope, fee, approval, and evidence of work.
The review might find a signed engagement letter and a completed report stored in another department. In that case, the main issue could be poor document handover rather than improper expenditure.
Alternatively, the reviewer might discover that the claimed work cannot be identified and the approval record does not support the payment. That would justify further enquiry. The same initial warning can lead to very different outcomes depending on the evidence.
Distinguish an Error From a Process Failure or Misconduct Concern
Not every confirmed problem belongs in the same category. A coding mistake, a misunderstood policy, an ineffective process, and suspected deliberate misuse require different responses.
A duplicate payment caused by two staff members processing the same invoice may indicate a workflow weakness. An employee following a manager’s routine verbal instructions may reveal unclear authority rather than an isolated act of misconduct.
Where evidence suggests deliberate concealment or personal benefit, the matter may require a more formal investigation. Even then, the reviewer should separate established facts from assumptions about intention.
Accurate classification matters because it shapes the response. Training will not resolve intentional manipulation, while disciplinary action may be inappropriate where the real problem is an unclear or impractical process.
Involve Human Resources When Employee Conduct Is in Question
A transaction review and an employee disciplinary inquiry are related but distinct processes. Human resources can help management handle employee communication and employment procedures appropriately.
Singapore’s Ministry of Manpower states that employers must conduct a formal inquiry before taking disciplinary action for misconduct. Its guidance includes informing the employee of the alleged misconduct, giving them an opportunity to present their case, and ensuring that the person hearing the inquiry is not in a position suggesting bias.
Management should therefore avoid treating an accountant’s concern as a disciplinary finding. The accounting evidence may inform an inquiry, but it does not replace a fair process.
Where the situation is sensitive or the appropriate procedure is unclear, employment or legal advice can help the company decide how to proceed.
Escalate When the Matter Exceeds Internal Capabilities
Some concerns can be resolved through ordinary management review. Others involve transaction patterns, complex records, senior personnel, or potential legal disputes that require different expertise.
An independent forensic accountant may assist with tracing payments and analysing financial evidence. Legal advisers may help assess rights, obligations, and the handling of a potentially contentious matter. IT specialists may be needed where system activity or electronic records are central.
Management should define what it needs each specialist to establish. A focused question and a clear reporting line are more useful than a broad instruction to investigate everything.
External involvement does not predetermine the outcome. It can provide the competence and independence needed to reach a supported conclusion where internal review would be insufficient.
Address Immediate Exposure Proportionately
While the review is underway, management may need to consider whether further loss could occur. The response should match the facts and avoid unnecessary disruption.
For example, an authorised temporary second review of new payments to the supplier may be appropriate while payment details are checked. A credible concern about payment diversion may require prompt contact with the bank through an established channel.
Any restriction or hold should be documented and considered against contractual, operational, and employment obligations. A concern does not automatically justify withholding every payment or taking punitive action against an employee.
The aim is to protect the business while preserving a fair review. Temporary measures should be revisited as evidence develops rather than remaining in place without explanation.
Keep Communication Factual and Restricted
An unresolved expense concern can quickly become workplace gossip. Broad circulation of names, allegations, or incomplete findings can harm employees and make the review harder to conduct fairly.
Information should be shared with people who need it to perform their roles. Updates should explain what is being reviewed, what has been established, and what remains unresolved.
Confidentiality should not prevent necessary escalation or a person’s opportunity to respond through an appropriate process. It should support responsible handling of the information.
Management should also agree who communicates with suppliers or other external parties. Multiple employees asking inconsistent questions can create confusion and make it difficult to maintain a reliable record of responses.
Document the Findings and Their Limits
A useful conclusion distinguishes between facts established, explanations supported, and questions that remain unanswered. It should identify the evidence considered and any limitations affecting the result.
For a routine matter, a short documented conclusion may be sufficient. More serious concerns may require a formal report with a clear chronology and supporting references.
The reviewer should avoid overstating certainty. Missing documentation does not, on its own, prove that a transaction never occurred. Equally, a plausible explanation does not automatically resolve contradictory evidence.
The report should allow the appropriate decision-maker to understand why the conclusion follows from the records. Decisions about accounting corrections, recovery, employment action, or further escalation can then be made through the relevant process.
Correct the Records and Follow Through on Recovery
If the review identifies an accounting error, finance should record the correction with the necessary approval and supporting explanation. The original history should remain traceable.
Where money was paid incorrectly, the business should establish who is responsible for seeking recovery and monitoring the outcome. A supplier’s promise to refund a duplicate payment should remain open until the receipt is confirmed.
Some cases may also affect financial statements or other reporting. Management should discuss significant implications with the relevant accounting and audit professionals rather than assume that resolving the operational issue completes every obligation.
A clear action list helps separate the finding from the follow-up. Establishing what happened is one stage; completing the resulting work is another.
Fix the Weakness That Allowed the Problem
Even where the expense is legitimate, the review may reveal an avoidable weakness. Supporting documents may be scattered, approval responsibilities unclear, or finance may receive information too late.
Management should choose improvements that address the actual cause. A required contract reference may help more than an additional signature if the problem was an unclear description of services.
Where the issue arose from duplicate processing, a better invoice check may be appropriate. Where employees cannot tell who has authority, the approval rules may need clearer communication.
The company should also verify that the change works in practice. Closing the review without checking implementation leaves the same uncertainty ready to reappear in another transaction.
When Lee & Hew’s Investigation Services May Be Relevant
Audit Services Singapore, the online presence of Lee & Hew PAC, lists investigation and forensic accounting services. Its service information includes examination of financial and operational procedures and reporting on investigation findings.
Businesses facing unresolved or complex financial concerns can discuss the circumstances with the firm to assess whether a specialised engagement is appropriate. The scope, reporting arrangements, access to information, and potential conflicts should be clarified at the outset.
A statutory financial statement audit should not be assumed to cover a targeted investigation automatically. The purpose and procedures of the required work need to be agreed.
The appropriate level of support depends on the issue. A missing receipt may need a routine follow-up, while a pattern of unexplained payments may require a more structured and independent examination.
The Right Reviewer Depends on What Needs to Be Established
When an accountant flags an unusual expense, management should respond with curiosity and a clear process. Start by defining the uncertainty, checking the available records, and assigning a reviewer who can act objectively.
Escalate where the matter involves conflicts, possible misconduct, or expertise beyond the internal team. Give relevant people an opportunity to explain, preserve supporting evidence, and distinguish findings from assumptions.
The purpose is to reach a fair, supported conclusion and act on it. Sometimes that will mean correcting an ordinary error. Sometimes it will require recovery, process changes, or specialist investigation.
A business handles unusual expenses well when questions receive appropriate attention without becoming premature accusations. That protects the company’s finances while also protecting the people who work within its processes.