Shift4 & Flatpay: Revolutionizing the Nordics with Transparent Payment Solutions

At Shift4, we’re on a mission to simplify payments for businesses everywhere. That’s why our partnership with Flatpay has been so rewarding—it’s a collaboration built on a shared vision of delivering transparency and simplicity to merchants. Together, we’re transforming the payment landscape in the Nordic and European regions, enabling businesses to thrive with innovative, straightforward solutions.
The Complexity We’re Solving
Merchants across the Nordics often need help with fragmented payment systems, high fees, and unclear pricing. Flatpay was founded to address these issues head-on with a single, transparent payment solution that eliminates unnecessary complexity.
With a single flat transaction fee for all card types and no hidden costs, Flatpay ensures merchants can focus on growing their business instead of dealing with complicated payment systems. This bold approach is why they’ve quickly become a standout in the market.
How Shift4 Powers Flatpay’s Vision
In May 2022, Flatpay took a bold step in revolutionizing payments in Denmark by partnering with Shift4 as their primary acquirer and technology provider. They had a vision: to empower small and medium-sized businesses (SMBs) with simple, transparent, and cost-effective payment solutions. Shift4’s technology became the foundation that brought this vision to life, enabling Flatpay to enter the market with confidence and scale rapidly.
Learn more about our partnership.
Effortless Onboarding
When Flatpay needed a way to handle the high volume of SMBs eager to join their platform, we stepped in with a customized onboarding API. This streamlined process meant merchants could start accepting payments without delays, helping them focus on growing their businesses.
Flexible Features
From tailored acquiring services to surcharging capabilities, our solutions gave merchants more control over their payments. Whether a boutique shop or a local grocer, every business could adapt our tools to meet their unique needs.
Forward-Thinking Innovation
Our collaboration didn’t stop at launch. Together with Flatpay, we’re developing Dynamic Currency Conversion (DCC) and enhancing their ecommerce capabilities. These forward-thinking solutions ensure merchants are prepared to compete in an increasingly digital and globalized world.
Delivering Value to Merchants

Through this partnership, merchants benefit from a one-stop shop for payment solutions. No more juggling multiple providers or worrying about hidden costs. With Flatpay, they get free terminals, transparent pricing, and a single fee that covers even the most comprehensive packages—including cash register and terminal solutions.
Setting New Standards in Payments
This partnership exemplifies how innovation and collaboration can transform the payments industry. Flatpay’s all-in-one system has set a new benchmark for transparency, simplicity, and service in the Nordics.
At Shift4, we’re proud to support Flatpay’s growth and its mission to redefine payments. With plans to expand into ecommerce and continuous enhancements in their offerings, Flatpay is raising the bar—and Shift4 is here to help them every step of the way.
Join the Revolution
Shift4’s advanced commerce-enabling technology powers millions of transactions worldwide. Whether you’re a PSP partner or a merchant, we’re here to deliver solutions that simplify payments and help your business thrive in the Nordics and beyond.