A suspicious transaction report in Bangladesh is the formal notice a bank, insurer, broker or other reporting organisation must send to the Bangladesh Financial Intelligence Unit when it suspects money laundering or terrorist financing. Reports rose to over 30,000 in FY25, and regulators now judge compliance programmes by the quality of what is filed.

What a suspicious transaction report in Bangladesh is

Bangladesh's anti-money laundering regime depends on private institutions spotting unusual activity and telling the authorities. The Bangladesh Financial Intelligence Unit (BFIU), an independent unit housed at Bangladesh Bank, receives and analyses these reports and shares intelligence with law enforcement agencies, the Anti-Corruption Commission and foreign financial intelligence units.

A suspicious transaction report in Bangladesh, usually called an STR, is filed when a reporting organisation suspects that a transaction relates to proceeds of crime, money laundering or financing of terrorism. A suspicious activity report, or SAR, covers suspicious behaviour or attempts that may not involve a completed transaction. Both go to the BFIU and both are treated with the same confidentiality.

The scale of reporting

According to the BFIU annual report released on 15 July 2026, reporting organisations submitted 30,199 STRs and SARs in FY25, comprising 20,524 STRs and 9,675 SARs, compared with 17,345 in FY24. Banks filed 28,755 reports, money transfer organisations 1,095 and non-bank financial institutions 250. Reporting has risen almost six-fold since FY21, reflecting both better detection and greater regulatory pressure after 2024.

The legal framework

Several laws and instruments create the duty to file a suspicious transaction report in Bangladesh. The table summarises them.

The statutes are available on the Laws of Bangladesh portal, and circulars and guidance are published by the BFIU. Because BFIU revises its circulars regularly, compliance teams should check for the latest sector circular before updating policies.

Who must file a suspicious transaction report in Bangladesh

The Money Laundering Prevention Act defines "reporting organisations". The list is broad and has been extended over time. It includes:

• Banks and financial institutions, including finance companies under the Finance Company Act 2023.
• Insurers.
• Money changers and money or value transfer service providers, including mobile financial services.
• Stock dealers and brokers, portfolio managers, merchant bankers, securities custodians and asset managers.
• Non-government organisations and non-profit organisations, and cooperative societies.
• Real estate developers and agents.
• Dealers in precious metals and stones.
• Trust and company service providers.
• Lawyers, notaries, other independent legal professionals and accountants when they carry out specified transactions for clients.

The last three groups are the "designated non-financial businesses and professions". They are expected to file a suspicious transaction report in Bangladesh in the same way as banks when they encounter suspicious activity in covered transactions, such as buying and selling property or managing client money.

What counts as suspicious

The Act does not require proof of a crime. A reporting organisation must report when it has reasonable grounds to suspect that funds or a transaction may be connected with an offence. BFIU guidance gives sector-specific red flags. Common indicators include:

• Inconsistent with profile. Transactions that do not match the customer's known income, business or history.
• Structuring. Splitting cash deposits or withdrawals to avoid reporting thresholds.
• Rapid movement. Funds passing quickly through an account with no clear business purpose.
• Third parties. Unexplained payments to or from unrelated persons or shell companies.
• Trade anomalies. Over- or under-invoicing, mismatched goods descriptions or unusual shipping routes.
• Reluctance. Customers who refuse to provide information or give false documents.
• Politically exposed persons. Large or unusual transactions involving PEPs or their associates without a clear source of funds.

Trade-based money laundering

Trade misinvoicing is a major concern in Bangladesh, given the size of the garment export sector and import payments. Banks handling letters of credit and export proceeds should check prices against market benchmarks, verify counterparties and shipping details, and file a suspicious transaction report in Bangladesh when anomalies cannot be explained.

Cash transaction reports versus STRs

Reporting organisations also file cash transaction reports (CTRs) for cash transactions above thresholds set by BFIU, regardless of suspicion. A CTR is routine and threshold-based; an STR is judgement-based. The two are different obligations. A large cash deposit may require a CTR without any STR, while a small, structured series of deposits below the threshold may justify an STR even though no CTR is triggered.

Do not treat filing a CTR as a substitute for considering whether a suspicious transaction report in Bangladesh is needed. Supervisors specifically look for structuring designed to stay below CTR thresholds.

Step-by-step: filing a suspicious transaction report in Bangladesh

Each organisation's procedure must be set out in its AML policy approved by the board. A typical process looks like this.

1. Identify the red flag. Front-line staff, transaction monitoring systems or relationship managers identify unusual activity.
2. Escalate internally. The matter goes to the branch AML officer and then the chief anti-money laundering compliance officer (CAMLCO), without informing the customer.
3. Analyse. The compliance team reviews KYC records, transaction history, linked accounts and open-source information.
4. Decide. The CAMLCO decides whether reasonable grounds for suspicion exist and records the reasons, whichever way the decision goes.
5. File. The report is filed with the BFIU through goAML, with a clear narrative and supporting documents.
6. Follow up. The organisation responds to BFIU requests for further information and applies any suspension or freezing instruction.
7. Review the relationship. The customer's risk rating is updated, enhanced monitoring is applied and exit is considered where appropriate.

Writing a useful narrative

The narrative is the most important part of the report. It should explain who is involved, what happened, when, how much, through which accounts and why it is suspicious. A narrative that merely says "transaction inconsistent with profile" gives the BFIU little to work with. Good narratives make the difference between a report that leads to intelligence and one that is filed away.

Tipping off and confidentiality

The Act prohibits disclosing to the customer or any third party that a suspicious transaction report in Bangladesh has been made or is being considered, or that an investigation is under way. Tipping off is an offence. Staff training should cover how to handle customer questions when a transaction is delayed for review without revealing the reason.

Confidentiality also protects the reporter. The Act provides protection for reporting organisations and their officers who report in good faith, so they are not liable to the customer for breach of confidentiality. That protection depends on following the proper internal process and reporting to the BFIU, not to anyone else.

Record keeping and KYC

Reporting depends on good records. The Act requires reporting organisations to verify customer identity, keep records of identity and transactions for the period the law prescribes, commonly at least five years after the relationship ends, and provide information to the BFIU on request. Customer due diligence must be risk-based, with enhanced due diligence for high-risk customers and politically exposed persons.

A suspicious transaction report in Bangladesh is only as good as the KYC behind it. If the organisation cannot show who the customer is, what business they run and what their expected transactions are, it cannot reliably say what is unusual. Weak KYC is the most common finding in BFIU inspections.

Freezing, suspension and BFIU powers

Filing is not always the end of the matter. Under the Money Laundering Prevention Act and the Anti-Terrorism Act, the BFIU can instruct a reporting organisation to suspend or freeze transactions in an account for a period set by the law, and can extend that period where needed for analysis. Banks must comply promptly and record the instruction. The account holder is not told the reason by the bank, although court orders and law enforcement action may follow.

The BFIU can also ask any reporting organisation for information and documents, and share intelligence with the Anti-Corruption Commission, the Criminal Investigation Department, the National Board of Revenue and foreign counterparts through the Egmont Group. A well-documented suspicious transaction report in Bangladesh makes these follow-up requests easier to answer.

Sanctions screening

Separate from STRs, reporting organisations must screen customers and transactions against United Nations Security Council sanctions lists and domestic lists under the Anti-Terrorism Act. A match requires immediate freezing and reporting as directed. Screening systems should be updated whenever lists change.

Mobile financial services and digital payments

Mobile financial services have transformed payments in Bangladesh, and with them the patterns of suspicious activity. Common red flags include many small inbound transfers into one wallet from unrelated senders, rapid cash-out through agents, wallets registered with borrowed identity documents and use of wallets to collect funds for online gambling or fraud schemes. MFS providers are reporting organisations and must monitor agent networks as well as customer wallets.

Fintech companies, payment service providers and e-commerce platforms that handle customer money should map their obligations early. Even where a business is not itself a reporting organisation, its bank partner will expect cooperation and may file a suspicious transaction report in Bangladesh about the platform's flows if they appear unusual.

Penalties for non-compliance

The Money Laundering Prevention Act gives the BFIU power to act against reporting organisations that fail to comply with their obligations. Failures can lead to fines within the range set by the Act, which practitioners report as reaching up to Tk 25 lakh for a reporting organisation, and to requests to the licensing authority to suspend or cancel the organisation's licence or registration. Officers responsible can face personal consequences.

Money laundering itself is a serious criminal offence under the Act, with imprisonment and fines, and confiscation of property involved. Staff who knowingly assist launderers can be prosecuted. For context on corruption-related offences, see our guide to anti-corruption and bribery compliance.

Recent enforcement climate

Since 2024, Bangladesh has pursued asset recovery and investigations into alleged money laundering by politically connected persons and business groups, with the BFIU, the Anti-Corruption Commission and other agencies involved. This has increased scrutiny of banks' historical reporting and of whether suspicious transactions were missed or ignored.

Building an effective STR programme

From our work with reporting organisations, effective programmes share several features:

• A board-approved AML policy and a CAMLCO with real authority and resources.
• Risk assessment of customers, products, delivery channels and geography, updated regularly.
• Transaction monitoring rules calibrated to the organisation's actual business, not generic thresholds.
• Training for front-line staff with sector-specific red flags and case studies.
• A documented decision trail for every alert, including decisions not to report.
• Quality assurance of filed reports and feedback from BFIU.
• Independent audit of the AML programme.

Organisations that can show this framework are in a strong position when BFIU inspects, and they file each suspicious transaction report in Bangladesh with greater confidence.

Professionals and non-financial businesses

Lawyers, accountants and real estate businesses often feel uncertain about reporting. For legal professionals, the obligation applies to specified transactions such as buying and selling real estate, managing client money or assets, and creating or managing companies, and must be balanced against legal professional privilege. Professionals should adopt a written procedure, appoint a compliance officer and train staff to recognise red flags in property and company transactions.

Real estate developers should verify the identity and source of funds of buyers, especially for cash payments and purchases through third parties. A buyer who pays large sums in cash or through multiple accounts, or who insists on recording a lower price in the deed, presents classic red flags.

Frequently asked questions about suspicious transaction report in bangladesh

How we can help

We help reporting organisations build and test AML programmes, draft policies and escalation procedures, train staff on filing a suspicious transaction report in Bangladesh, respond to BFIU inspections and handle investigations and enforcement. Learn more about our compliance and risk practice.

Primary sources: the Money Laundering Prevention Act 2012 and Anti-Terrorism Act 2009 on the Laws of Bangladesh portal; circulars, guidelines and annual reports of the Bangladesh Financial Intelligence Unit; banking regulation from Bangladesh Bank; Dhaka Tribune report on the BFIU FY25 annual report (15 July 2026).

This article is general information about Bangladeshi anti-money laundering law as of October 2026 and is not legal advice. BFIU circulars, thresholds and penalties change; confirm current requirements with the BFIU or a qualified lawyer before acting.