Case Study: Northmill Bank turns referrals into a top acquisition channel with Voucherify

Northmill Bank launches referrals in weeks with Voucherify

Northmill Bank, a Swedish neobank, needed to build a compliant referral program but found most tools were built for ecommerce and could not handle their complex requirements. Swedish tax law imposed strict annual reward limits per customer, and the program required custom triggers based on milestones like card activation. The vendor Voucherify was selected to provide the referral engine that could enforce these hard guardrails while integrating with their existing tech stack.

The solution from Voucherify was implemented in weeks, handling the core referral logic, compliance cap validation, and reward rules. This allowed Northmill's marketing team to manage messaging through Braze while engineering focused on the event pipeline. As a result, referrals became one of the bank's fastest-growing and key acquisition channels. The same Voucherify-powered program, proven in Sweden, is now being rolled out to Finland, enabling international expansion.

Northmill Bank