Tieto and Siirto Partner to Revolutionize E-Invoicing and Instant Payments in Finland

Tieto and Siirto have entered a strategic partnership to integrate instant payment capabilities with digital invoicing in Finland. For fintech professionals, this move represents a significant step in removing friction from the B2C billing cycle, leveraging a centralized registry to automate the delivery of e-invoices directly into consumer banking applications.

What was announced

The collaboration centers on the integration of Siirto’s newly launched centralized registry with Tieto’s Multichannel B2C e-invoicing solution. This technical bridge allows businesses to automatically retrieve a customer’s e-invoice address, enabling the delivery of the very first invoice directly to the user’s online banking interface. By bypassing traditional paper-based methods or manual email attachments, the partnership aims to streamline the entire lifecycle of a bill from issuance to settlement.

The service is designed for the Finnish market, where Siirto already maintains a significant footprint with more than 1 million registered users. The system works by utilizing the centralized registry to identify the correct digital destination for a bill, ensuring that consumers receive payment requests in a familiar environment. This eliminates the need for manual data entry, such as IBANs or reference numbers, which are common pain points in traditional bank transfers. The initiative focuses on enhancing accessibility and user-friendliness, ensuring that the invoicing ecosystem keeps pace with the rapid digitalization of the Finnish financial sector.

"Consumers shouldn't need a separate app to pay or receive an invoice – their bank app should already do it. No extra downloads, no friction. That's the direction instant payments in Finland is heading, and Tieto is a key partner in getting us there."

Mikko Ketola, CEO of Siirto.

The companies involved

Tieto is a major technology service provider headquartered in the Nordic region, offering a wide range of software and IT services across various industries, including financial services. The company’s Multichannel B2C e-invoicing solution is a core component of its financial technology portfolio, designed to manage complex billing flows for large organizations. Tieto plays a critical role in the Nordic digital infrastructure, supporting the transition away from legacy paper processes toward integrated cloud-based solutions.

Siirto is Finland's first real-time mobile payment system, operating under the brand Siirto Brand Oy. It was developed to allow instant money transfers between customers of different banks using only a phone number. The platform is supported by major financial institutions in the region, including Nordea and OP. By providing a common standard for instant payments, Siirto has become a central pillar of the Finnish retail payment landscape. The introduction of its centralized registry marks an evolution from simple peer-to-peer transfers to a more comprehensive financial utility that encompasses business-to-consumer billing and automated e-invoicing address management.

What FF News has reported before

FF News has previously tracked the broader Nordic financial landscape, including significant organizational changes at key Siirto stakeholders. In August 2026, we reported that Nordea Overhauls Leadership Team and Merges Risk and Compliance Functions, a move that signaled a shift in how one of the region's largest banks manages its internal operations. Additionally, our coverage of the wider market includes reports on infrastructure shifts, such as Evernorth Strengthens Positioning for Public Investors as It Advances Toward Nasdaq Listing, highlighting the ongoing activity within the Nasdaq-listed ecosystem where many Nordic tech firms operate.

What this means

This partnership signals a shift in the European payments landscape where "instant" is no longer just about the transfer of funds, but about the instantaneity of the entire billing workflow. By linking a national instant payment brand with a major e-invoicing provider, the Finnish market is putting pressure on traditional postal services and legacy PDF-via-email billing methods. The move highlights a growing industry consensus: the banking app is the final destination for all consumer financial interactions. For competitors, the challenge now lies in matching this level of deep integration. The success of this model will likely depend on whether other regional players can replicate such centralized registries to solve the "first invoice" problem that has long plagued digital adoption.