For many businesses in Thailand, issuing an invoice is often seen as the point when revenue is “earned.” From a commercial point of view, this feels natural. The customer has been billed, the accounting team has recorded the transaction, and the sales report shows higher revenue.
However, under financial reporting standards, issuing an invoice does not always mean that revenue can be recognised. Revenue recognition depends on whether the business has actually satisfied its performance obligations to the customer, not only whether an invoice has been issued.
This is an important area for companies preparing financial statements, because incorrect revenue recognition can affect profit, tax planning, management reports, bank covenants, and the audit opinion.
Revenue Recognition Is Based on Performance, Not Billing
Under the general revenue recognition principle, revenue should be recognised when control of goods or services has been transferred to the customer. In simple terms, the key question is:
If the answer is yes, revenue may normally be recognised. If the answer is no, the invoice may represent a contract liability, advance payment, or unearned revenue instead of revenue.
Invoice Issued Before Goods Are Delivered
Assume a company issues an invoice to a customer on 28 December, but the goods are delivered on 5 January. If the customer does not obtain control of the goods before year-end, recognising revenue in December may not be appropriate. In this case, even though the invoice exists, the company may not yet have earned the revenue.
The correct accounting treatment may be to record a receivable and a liability, or to defer revenue until the goods are delivered, depending on the contract terms and actual facts. This is a common audit issue near year-end, especially when sales teams are under pressure to meet targets.
Services Not Yet Completed
For service businesses, the timing of revenue recognition can be more judgmental. A company may issue a full invoice at the start of a project, but the service may be performed over several months. For example, if a consulting company invoices THB 1 million in advance for a six-month service contract, it should not automatically recognise the full amount as revenue immediately.
Billed in full in Month 1 — service delivered gradually across all six months
Revenue may need to be recognised over time as the service is performed. The finance team should review the service period, contract terms, milestones, customer acceptance clauses, and evidence of work performed.
Bill-and-Hold Arrangements
A bill-and-hold arrangement occurs when a customer is billed for goods, but the seller continues to hold the goods for a period of time. These arrangements require careful analysis.
Revenue may be recognised only if specific conditions are met, such as:
If these conditions are not met, issuing an invoice is not enough to support revenue recognition.
Why This Matters During Audit
Revenue is usually one of the most sensitive areas in a financial statement audit. It directly affects profit and is often linked to management performance, bonuses, loan covenants, and investor expectations.
Auditors will normally focus on whether revenue has been recognised in the correct period and whether the accounting treatment is supported by sufficient evidence. Common audit procedures may include:
Recognised too early
The financial statements may overstate revenue, profit, receivables, and retained earnings.
Recognised too late
The company may understate performance and distort financial reporting trends.
What Finance Teams Should Prepare
To reduce audit issues, finance teams should not rely only on invoices. They should keep clear documentation to support when revenue is actually earned.
Practical Best Practices
Establish a clear revenue recognition policy that is consistent with financial reporting standards and the nature of the business.
Keep sales, operations, and finance communicating regularly — especially for unusual transactions, year-end sales, advance billings, bundled services, and contracts with special terms.
Review major invoices issued near year-end before closing the accounts, and ask whether the related goods or services were actually delivered or performed before the reporting date.
This simple review can prevent material adjustments during the audit.
Conclusion
Issuing an invoice is important, but it is not the same as earning revenue. For proper financial reporting, companies must consider the substance of the transaction, the contract terms, and whether control of goods or services has transferred to the customer.
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