GST: Reporting Tax Evasion or Fraud

Key requirements

IRAS distinguishes deliberate inaccurate reporting from signs that need investigation. Useful information includes the person or business, the method, amount and years, available records and how the facts became known. Reports and identity are confidential, and anonymous information is accepted. A reward request requires identification and contact details when reporting, specific supporting evidence and no participation or assistance in the fraud. A qualifying reward is discretionary, based on 15% of recovered tax and capped at S$100,000 after recovery. Tax secrecy prevents progress or outcome updates. Ordinary commercial or personal disputes are not the purpose of this route. Preserve existing evidence and describe unavailable records and their locations rather than treating suspicions as established guilt.