For a neobank, architecture sets the investment threshold that must be crossed before the business model can be validated.

Unlike a conventional software startup, a neobank needs regulated infrastructure, payment connectivity, compliance controls and operational processes in place before meaningful transaction volumes are reached. The real question is how quickly the architecture turns assumptions into evidence — while there is still time to adjust.

Teams typically consider three paths. The timelines below are based on SOLANTEQ’s delivery experience and depend on regulatory readiness, scope, localisation and external integrations.

1. DIY / MVP-first

The attraction is control and lean initial spend. The challenge is that a financial-services MVP already requires much of the compliance, resilience and reporting expected from a production environment.

This can mean 12–24 months before the first commercial transaction, with significant capital spent before customer behaviour is tested at scale.

2. Best-of-bread assembly

This approach maximises component choice and works well when specific systems are strategically important.

The trade-off is permanent integration overhead. Each vendor adds its own roadmap, data model, SLA and support process, while reconciliation and cross-vendor troubleshooting become part of day-to-day operations.

For early-stage ventures, delivery can stretch to 18–36 months.

3. Integrated platform

An integrated platform reduces the amount of architecture that must be assembled before launch. Core banking, payments, compliance controls, customer channels and operational tooling share a common architecture and data model.

The benefit is not only speed, but cohesion: less integration drag, clearer accountability and more capital available for testing pricing, acquisition, retention and unit economics.

Based on SOLANTEQ’s delivery experience, the first live transaction can be achieved within 3–6 months for SaaS or 6–9 months for on-premises deployments, assuming regulatory onboarding and external dependencies are scoped upfront.

Choosing between the three paths

Every path has its superpower — and its invoice.

DIY suits businesses where proprietary technology is the differentiator. Best-of-breed favours flexibility. An integrated platform trades some vendor independence for execution predictability.

The real question is which architecture lets the business test its most important assumptions without committing more capital than necessary before the evidence is in.

What do you want your architecture — and your capital — to prove in the first 12 months?