GIRO
GIRO (General Interbank Recurring Order) is Singapore's electronic interbank payment system for batch processing of low-value, high-volume fund transfers including direct debits (bill payments) and direct credits (payroll, government disbursements).
🔄 Key Characteristics
- Batch processing system — not real-time; transactions are aggregated and settled in cycles.
- Supports both direct debit (pull) and direct credit (push) transactions.
- Widely used for recurring payments: utilities, insurance premiums, mortgage instalments, income tax.
- Operated by Banking Computer Services (BCS).
- Processing and settlement timing depend on the submission cycle, participating banks, and applicable non-business days.
- Governed by ABS GIRO Operating Procedures.
🧾 Transaction Types
| Transaction Type | Direction | Common Use Cases |
|---|---|---|
| Direct Debit | Pull from payer | Utility bills, insurance premiums, loan repayments |
| Direct Credit | Push to payee | Payroll, CPF contributions, government grants |
| GIRO Deduction Authority | Authorisation | Mandate permitting an approved billing organisation to initiate direct debits |
🛠️ Operational Workflow
Direct Debit (Bill Payment):
- Biller submits batch debit file to their bank on agreed schedule
- Originating bank validates file format (ABS GIRO file specifications)
- File submitted to BCS for interbank routing
- Receiving (debiting) bank processes debit against customer accounts
- Failed transactions (insufficient funds, account closed) returned to originating bank
- Interbank obligations settled under the GIRO processing timetable
- Biller receives credit advice and exception report
🧮 Example Calculation
Illustrative scenario: A monthly mortgage GIRO deduction of SGD 3,200 is submitted for processing on the 25th of the month.
| Timeline | Event |
|---|---|
| Before the applicable cut-off | Biller submits the batch debit file |
| Processing cycle | File is validated and routed to the debiting bank |
| Value date | Debit is attempted and interbank obligations are settled |
| After processing | Biller receives the outcome and exception report |
Actual cut-off times, value dates and return handling depend on the participating bank and billing arrangement.
📋 Compliance & Monitoring
- GIRO mandates and transaction records retained in accordance with applicable law and the institution's retention policy
- Unauthorised debit disputes investigated under the participating bank's complaint and dispute procedures
- Daily balancing of GIRO credits and debits against BCS settlement reports
- Failed transaction (return) rate monitored; high return rates may result in biller suspension
- AML screening on large GIRO credit batches before processing
- Compliance with MAS Notice 626 and ABS GIRO Operating Procedures