Skip to content

Suspicious Transaction Reporting to STRO

Back to AML / CFT

Previous Next


Overview

The Suspicious Transaction Reporting Office (STRO) is Singapore's Financial Intelligence Unit (FIU), established within the Commercial Affairs Department of the Singapore Police Force. STRO receives, analyses, and disseminates Suspicious Transaction Reports (STRs) filed by financial institutions and designated non-financial businesses and professions.

All CMS licence holders are legally obligated to file STRs with STRO when there are reasonable grounds to suspect that property is connected to money laundering (ML), terrorism financing (TF), or proliferation financing (PF).

Statutory Basis

The obligation to file STRs arises from:

  • Section 39 of the Corruption, Drug Trafficking and Other Serious Crimes (Confiscation of Benefits) Act (CDSA): Requires reporting of knowledge or suspicion of property connected to drug dealing or criminal conduct
  • Section 8 of the Terrorism (Suppression of Financing) Act (TSOFA): Requires reporting of knowledge or suspicion of property connected to terrorism
  • MAS Notice 626, Paragraph 15 (Banks) and MAS Notice SFA 04-N02 (Capital Markets Intermediaries): STR requirements applicable to the respective regulated populations under FSM Act 2022 sec 16. For Regnify-onboarded CMS licensees, SFA 04-N02 is the directly applicable notice; Notice 626 governs banks in parallel

Who Must File

The filing obligation applies to:

  • CMS licence holders and their officers and employees
  • Licensed financial advisers
  • Banks, merchant banks, and finance companies
  • Insurers and insurance intermediaries
  • Designated non-financial businesses and professions (DNFBPs)

Any person (not just financial institutions) who knows or has reasonable grounds to suspect that property is connected to ML/TF must file an STR.

When to File an STR

Grounds for Suspicion

An STR must be filed when a CMS licence holder knows or has reasonable grounds to suspect that:

  1. Property represents the proceeds of drug dealing or criminal conduct
  2. Property was used or is intended to be used in connection with drug dealing or criminal conduct
  3. A transaction is connected to money laundering or terrorism financing
  4. A customer or beneficial owner is a designated person under sanctions legislation

Suspicion Indicators — Capital Markets Context

The following are non-exhaustive indicators that may give rise to a duty to report:

Customer behaviour: - Reluctance to provide identification or providing false/inconsistent information - Unusual concern about reporting requirements or compliance procedures - Requests to structure transactions to avoid thresholds or reporting requirements - Sudden, unexplained changes in transaction patterns

Transaction characteristics: - Transactions with no apparent economic or business purpose - Transactions inconsistent with the customer's known financial profile or investment objectives - Frequent large cash deposits followed by securities purchases - Rapid buying and selling of securities (churning) with no apparent profit motive - Third-party funding from unrelated parties or unusual jurisdictions

Account activity: - Use of multiple accounts with no clear business rationale - Dormant accounts that suddenly become active with large transactions - Transfers between accounts of apparently unrelated persons - Accounts used primarily as pass-through vehicles

Securities-specific indicators: - Purchase of securities just before material non-public announcements (potential insider trading) - Coordinated trading patterns across multiple accounts (potential market manipulation) - Use of nominee or omnibus accounts to obscure beneficial ownership - Cross-border transfers of securities with no apparent investment rationale

Filing Procedures

STRO Online Notification and Reporting System (SONAR)

All STRs must be filed electronically via SONAR (https://sonar.gov.sg). The system provides:

  • Secure electronic filing
  • Structured data entry templates for different institution types
  • Confirmation of receipt and reference number
  • Ability to submit supplementary information to existing reports

Filing Timeline

  • As soon as reasonably practicable after the suspicion arises
  • MAS expects STRs to be filed within 1 business day of the suspicion being formed at the compliance level
  • For urgent matters (e.g., terrorism financing), immediate filing is expected, followed by a detailed report
  • There is no threshold — suspicion alone triggers the obligation, regardless of transaction value

Information Required in an STR

An STR submitted to STRO should include:

  1. Reporting institution details: Name, licence type, contact person
  2. Subject details: Full name, identification numbers, date of birth, nationality, address, occupation
  3. Account/relationship details: Account numbers, account type, date opened, signatories
  4. Transaction details: Date, amount, currency, type of transaction, counterparties
  5. Grounds for suspicion: Clear description of the facts and circumstances that gave rise to the suspicion
  6. Supporting information: Relevant documents, transaction records, correspondence
  7. Actions taken: Whether the transaction was completed, frozen, or declined

Quality of STR Filing

MAS and STRO emphasise the importance of quality STR filing:

  • Clearly articulate why the activity is suspicious (not just that it is unusual)
  • Provide context — explain how the transaction deviates from expected behaviour
  • Include all relevant identifying information for the subjects
  • Attach supporting documentation where possible
  • Avoid formulaic or generic descriptions of suspicion

Tipping-Off Prohibition

Scope of Prohibition

Under Section 48 of the CDSA and Section 10 of the TSOFA, it is a criminal offence for any person to:

  • Disclose to any person that an STR has been filed or will be filed
  • Disclose information that is likely to prejudice any investigation related to the STR
  • Disclose information from which the filing of an STR could be inferred

Exemptions

The tipping-off prohibition does not apply to:

  • Disclosure to MAS or other competent authorities for regulatory or supervisory purposes
  • Disclosure between financial institutions within the same group, provided both are subject to AML/CFT requirements and the disclosure is for CDD or transaction monitoring purposes
  • Disclosure to legal counsel for the purpose of obtaining legal advice (subject to conditions)
  • Disclosure in the course of legal proceedings

Penalties

Breach of the tipping-off prohibition is punishable by:

  • CDSA: Fine not exceeding S$250,000 or imprisonment not exceeding 3 years, or both
  • TSOFA: Fine not exceeding S$250,000 or imprisonment not exceeding 5 years, or both

Safe Harbour Provisions

Protection for Reporting Persons

Persons who file STRs in good faith are protected under safe harbour provisions:

  • No breach of confidentiality: Filing an STR does not constitute a breach of any obligation of secrecy or restriction on disclosure imposed by law, contract, or professional conduct rules
  • No liability for disclosure: A person who files an STR in good faith shall not be liable for any loss arising from the disclosure
  • No civil or criminal liability: The filing of an STR cannot give rise to an action for breach of confidence or any other civil or criminal proceedings

Condition for Protection

The safe harbour applies only if the STR is filed in good faith — that is, the filer genuinely believes or suspects that the activity is connected to ML/TF, and the report is not made maliciously or recklessly.

Under Section 44 of the CDSA, when a person suspects that property involved in a proposed transaction represents the proceeds of criminal conduct, the person must:

  1. File an STR before the transaction is carried out
  2. Obtain consent from STRO to proceed with the transaction
  3. Not carry out the transaction until consent is received or the consent period has lapsed
  • STRO has 7 days from receipt of the STR to issue a consent order (refusal to consent) or allow the transaction to proceed
  • If STRO does not issue a consent order within 7 days, the transaction may proceed
  • STRO may extend the refusal period by applying to the court for a restraint order

Practical Considerations

  • The consent regime does NOT apply to TSOFA (terrorism financing) matters — property connected to terrorism must be frozen immediately
  • CMS licence holders should have procedures to identify transactions that require prior consent
  • The 7-day period starts from the date STRO acknowledges receipt of the STR, not the date of filing

Internal Procedures

STR Escalation Process

CMS licence holders should establish a clear internal escalation process:

  1. Front-line staff identify potentially suspicious activity and escalate to their supervisor
  2. Supervisor conducts initial review and, if suspicion is maintained, escalates to compliance
  3. Compliance officer reviews the case, gathers additional information, and determines whether an STR should be filed
  4. STR filed via SONAR by the designated compliance officer
  5. Post-filing actions documented and any additional monitoring implemented

Training

Staff must be trained to:

  • Recognise indicators of suspicious activity relevant to their role
  • Understand the internal escalation procedures
  • Know the tipping-off prohibition and its implications
  • File STRs correctly using SONAR (for compliance staff)

Record Keeping

CMS licence holders must maintain:

  • Records of all internal suspicious activity reports (SARs) and their outcomes
  • Copies of all STRs filed with STRO
  • Records of decisions not to file (with documented rationale)
  • Communications with STRO and law enforcement
  • Retention period: at least 5 years from the date of filing

Key Regulatory References

  • Corruption, Drug Trafficking and Other Serious Crimes (Confiscation of Benefits) Act (CDSA), Sections 39, 44, 48
  • Terrorism (Suppression of Financing) Act (TSOFA), Sections 8, 10
  • MAS Notice 626, Paragraph 15 — Suspicious Transaction Reporting (Banks)
  • MAS Notice SFA 04-N02 — Suspicious Transaction Reporting (Capital Markets Intermediaries; directly applicable to Regnify-onboarded CMS licensees)
  • MAS Notice 824 — Suspicious Transaction Reporting (Finance Companies)
  • MAS Notice FAA-N06 — Suspicious Transaction Reporting (Financial Advisers)
  • MAS Guidelines to Notice 626 (STR quality and filing expectations)
  • STRO website: https://www.police.gov.sg/advisories/crime/commercial-crimes/suspicious-transaction-reporting-office

Relevance to Regnify

For CMS licence holders using Regnify:

  • Representative onboarding: If suspicious activity is identified during the onboarding process (e.g., false documentation, unusual circumstances), an STR must be filed before proceeding
  • Workflow integration: The approval workflow should include checkpoints where compliance officers can flag and escalate suspicious circumstances
  • Audit trail: Regnify's audit logging should capture all compliance decisions, including STR-related actions (without disclosing the fact of an STR filing in general-access records)
  • Tipping-off controls: Access to STR-related information within Regnify should be restricted to authorised compliance personnel

Previous Next

Back to AML / CFT