Corporate Income Tax: Tax Evasion or Fraud

Key Requirements

The two linked topics serve different purposes. Reporting guidance explains signs of suspected evasion and the channels for providing information to IRAS. Investigation guidance explains why investigations occur, what the process involves and how an affected person should respond. A reporting allegation is not itself proof of an offence. Use the relevant detailed source rather than treating this short directory as a statement of penalties or a finding against any taxpayer.

Separate Deliberate Conduct from an Unexplained Difference

IRAS describes evasion as deliberately supplying inaccurate or incomplete information to reduce tax or obtain undue credits or refunds. For company income tax, examples include omitted assessable income and deductions for fictitious or legally non-deductible expenses. An accounting difference should first be traced to the return, computation and underlying transaction. Record the facts that support a concern without treating a missing document or an unresolved interpretation as conclusive proof of criminal intent.

For a report, identify the company and affected years, describe the suspected method and amount, explain how the information became known, and attach relevant records already available. The reporting guidance distinguishes tax matters from private commercial disputes. IRAS independently evaluates information and cannot disclose another taxpayer’s case progress to the informer because of tax-secrecy obligations.

Respond to an Investigation with Complete Records

An investigation can involve paper and electronic accounting records, source documents, interviews and information obtained from third parties. Investigators identify themselves with authority cards and provide a letter explaining the visit and requirements. As practical preparation, keep a request log linking each reply to the ledger, contract, invoice or bank evidence supplied. Do not replace missing facts with assumptions: the official guidance requires truthful, complete information and preservation of existing records. Professional support can help organise a response, but cannot guarantee that an investigation will close without adjustment or enforcement.