Digital Payment & Fintech Solutions

Cashless payment is now part of everyday life in Vietnam: from supermarkets and coffee shops to street vendors, QR codes are everywhere. According to the State Bank of Vietnam, the value of QR code transactions in Q1/2026 grew by more than 52% year on year. For businesses and financial institutions, the question is no longer whether to go digital, but how to keep payments secure, reconcile them accurately and scale when transaction volumes multiply.

SFIN’s Digital Payment & Fintech Solutions answer that question. We design and deliver next-generation payment systems (e-wallets, payment gateways, VietQR and custom digital finance platforms) on a unified, secure and transparent architecture.

What payment challenges do businesses face?

Working with banks, retail chains and service companies, SFIN sees the same problems again and again:

• Many channels, many providers: cards go through one partner, QR through another, and e-wallets through yet another connection. Transaction data is scattered and hard to consolidate.
• Manual reconciliation: accountants download statements from each bank and match them against orders in Excel. Discrepancies are often found days later.
• Hard-to-confirm bank transfers: staff open banking apps to check whether a customer has paid, which invites mistakes and fraud.
• Invoicing separate from payment: after collecting payment, staff still re-enter data into the e-invoicing software.
• Security risks: in-house systems often lack duplicate-transaction protection, transaction signing and anomaly monitoring.

What does SFIN’s digital payment solution include?

SFIN acts as the technology integration layer between a business’s sales channels and the national payment infrastructure. Funds are processed by banks and payment intermediaries licensed by the State Bank of Vietnam; SFIN provides the software, connectivity and platform operations.

1. Multi-channel payment gateway

One connection point for every payment method: domestic and international cards, NFC tap-to-pay, e-wallets, bank transfers and QR codes. Businesses integrate once through an API instead of working with each partner separately. All sales channels (website, mobile app, POS terminal, cashier counter) share one processing flow and one transaction database.

2. Dynamic and static VietQR

• Dynamic QR: the system generates a QR code containing the exact amount and order reference. Customers scan it with any banking app, with no manual input and no wrong amounts.
• Static QR: a fixed code displayed at the counter, ideal for household businesses and small outlets.
• Instant confirmation: when funds arrive, the system receives the balance-change notification and marks the order as “paid” automatically. Staff no longer need to check a banking app.

The VietQR Pay ecosystem that SFIN participates in connects more than 70 banks and financial institutions.

3. POS and SoftPOS payments

SFIN integrates its sales software directly into bank POS terminals: one device accepts cards, NFC and QR, and also creates orders, manages inventory and issues invoices. Since October 2026, SFIN’s SOFIN software comes pre-installed on Agribank POS terminals as part of the “Agribank POS – All-in-One Management, Optimized Operations” solution.

4. Automated reconciliation

Every transaction carries a unique ID from order to bank. The system automatically matches transaction data against bank data per session and flags exceptions (short payments, duplicates, refunds) for accountants to review. Revenue reports by channel, outlet and shift are updated in real time.

5. E-invoicing and digital signatures

Once a payment succeeds, an e-invoice can be issued immediately and sent to the customer by email or text message, with data transmitted to the tax authority as required by law (Decree No. 123/2020/ND-CP, as amended by Decree No. 70/2025/ND-CP). The solution also supports cash-register e-invoices for household businesses and retailers.

6. Digital finance platforms: BNPL, P2P lending, investment

For financial institutions, SFIN can build complete digital finance products. FINBLUE, a platform developed by SFIN, combines three services:

• Buy now, pay later (BNPL): installment payments with credit limits approved by an AI scoring model.
• Peer-to-peer (P2P) lending: borrowers are matched directly with investors, with the platform acting as a technology intermediary.
• Investment: customers can invest small amounts, with automatic portfolio allocation.

User protection is built in: credit limit alerts, payment reminders and transparent credit reporting.

Security and compliance: designed in, not patched on

Payments leave no room for error. Systems built by SFIN apply multiple layers of protection:

Protection layer	How it works
Authentication	Single sign-on (SSO) and multi-factor authentication (MFA) for administrators
Connection control	An API Gateway is the single control point for all partner connections
Transaction integrity	Digitally signed transactions to prevent tampering and repudiation; unique transaction IDs to prevent duplicates
Data security	Encryption at rest and in transit; multi-dimensional access control with a maker–checker process
Testing	Static code analysis and dependency vulnerability scanning; penetration testing by an independent firm before go-live
Monitoring	Complete audit logs; anomaly monitoring using rules and AI models

SFIN has worked with commercial banks’ information security requirements for third-party vendors, and designs its solutions in line with Vietnam’s legal framework for cashless payments (Decree No. 52/2024/ND-CP) and personal data protection (Decree No. 13/2023/ND-CP).

SFIN’s track record

SFIN’s leadership team has many years of experience building and operating major payment, e-wallet and digital lending platforms in Vietnam, including VNPT EPAY, Viettel Money and Tima. Highlights include:

• A credit scoring and anomaly detection system for a national-scale payment infrastructure organization, processing around 35 million transactions per day.
• Hanoi 5 Cua O (BHL Tourism & Trading JSC): fully digitized ticketing with e-invoicing and VietQR payments, with real-time revenue management.
• The Hanoi Train: e-invoicing for a premium rail service, with passengers receiving invoices within seconds.
• Agribank: SOFIN software pre-installed on POS terminals in the “Agribank POS – All-in-One Management, Optimized Operations” solution.
• More than 50,000 shops sell and accept payments every day on platforms built by SFIN.

“SFIN’s e-invoicing and VietQR payment solution has fully digitized our ticketing process. It gives passengers a seamless payment experience and lets us manage revenue transparently in real time.”

— Mr. Tao Duc Hiep, Chairman, BHL Tourism & Trading JSC (“Hanoi 5 Cua O”)

Who is this solution for?

• Banks and finance companies that need BNPL, digital lending, e-wallet platforms or software for their merchant networks.
• Retail chains, F&B and service businesses that want every payment method in one system, automated reconciliation and instant invoicing.
• Transport, tourism and event companies that sell tickets, collect payments across channels and need real-time revenue visibility.
• E-commerce platforms and fintech startups that need an experienced technology team to build products quickly and correctly.

Implementation process

1. Business assessment: work with sales, accounting and IT to map the current flow of money.
2. Solution design: choose payment channels, infrastructure partners, reconciliation rules and access rights.
3. Integration and testing: API integration, functional testing, load testing and security testing.
4. Measured pilot: run at small scale and measure agreed criteria (transaction success rate, confirmation time, reconciliation match rate).
5. Rollout and operations: scale across the organization, with support under a service level agreement (SLA).

Frequently Asked Questions

Contact us

Let SFIN help you build a digital payment system that is secure, transparent and ready to grow.

• Hotline: (+84) 969 877 888
• Email: [email protected]
• Contact page: sfin.vn/contact

Read more: AI & Big Data Solutions · SOFIN E-commerce Ecosystem · BNPL and P2P Lending in Vietnam · SFIN & The Hanoi Train: E-Invoicing for 5-Star Rail Service