Interac e-Transfer 3.5 is the latest release in the Canadian electronic fund transfer system used by individuals and businesses to send money instantly via email or phone number. It’s widely adopted across Canada and is considered a core feature in mobile and internet banking.
The 3.5 version introduces enhanced features, new message types, and updated security protocols that institutions must support to remain compliant and competitive.
Key Enhancements in Interac e-Transfer 3.5
1. ISO 20022-Based Messaging
Interac 3.5 introduces new XML-based messaging, aligning with global payment standards (ISO 20022). This allows for richer data sharing and better automation of payment processes.
2. Expanded Use Cases
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Request Money Enhancements
Now more detailed and secure, including invoice-level metadata. -
SME and B2B Use Cases
Improved capabilities for business-to-business transfers.
3. Improved Fraud Detection
New fraud signals and additional data elements to help institutions detect anomalies in real time.
4. Future Compatibility
Sets the stage for real-time rails (RTR) integration under Payments Canada’s modernization roadmap.
What Financial Institutions Need to Do
If you’re a credit union or a bank, you’re likely either:
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Currently running Interac 3.4, or
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Not yet offering Interac e-Transfer as a service
In either case, there’s work to be done.
For Institutions on 3.4:
You need to upgrade to 3.5 before deadlines set by Interac and your payment service providers. This may require:
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System integration updates
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Testing across mobile and web channels
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Member communication updates
For Institutions Not Yet Offering Interac:
This is your chance to enter the market with the latest version from day one—fully compliant and ready for digital-first experiences.
How Acceinfo Can Help
At Acceinfo, we’ve helped credit unions and financial institutions across Canada:
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Upgrade from 3.4 to 3.5 with minimal downtime
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Build e-Transfer capabilities from scratch, fully integrated with core banking, mobile apps, and internet banking
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Ensure compliance with ISO 20022, FINTRAC, and Payments Canada standards
Whether you need an upgrade or a fresh implementation, our pre-built modules and deep financial integration expertise can save you months of development and certification effort.
Ready to Make the Move?
The Interac 3.5 transition is not just a technical upgrade it’s a strategic opportunity to enhance your member experience, future-proof your payments infrastructure, and unlock new revenue channels.
About Acceinfo
We specialize in digital banking solutions, CRM integrations, and secure financial application development tailored to Canadian financial institutions.