Migrating an insurance portfolio means moving all policies, customers, coverages, premium history and claims from an existing management system to a new one, with no service disruption for policyholders or the distribution network. For an insurer, a wholesale broker or an MGA, it is often the most sensitive part of modernising the IT system.
Why migrate an insurance portfolio?
The most common reasons are a legacy system that has become hard to evolve, a growing number of disconnected tools, long lead times to launch or update a product, and the ambition to bring AI into the core of policy administration. Migration then becomes a prerequisite for agility rather than a goal in itself.
What are the main migration approaches?
Three approaches are commonly used:
- Big bang: the whole portfolio switches over on a single date. Fast on paper, but all the risk is concentrated in one moment.
- Lift & shift: data and rules are moved as they are into the new system. Simpler, but it carries over the limits of the old one.
- Progressive migration (strangler pattern): the new system replaces the old one business domain by business domain, or product by product. This is the safest approach for large or multi-line portfolios.
Key steps for a successful migration
- Map the existing setup: products, coverages, business rules, data flows with partners and delegated authorities.
- Clean and standardise the data: duplicates, incomplete policies, inconsistent reference data. Data quality determines the success of the project.
- Configure products in the new insurance suite instead of redeveloping them.
- Migrate in batches and run in parallel: compare billing, renewals and premium calculations between the old and new systems.
- Support change management for operations teams and the distribution network.
What risks should you anticipate?
The main risks are data loss or corruption, interrupted premium collection, discrepancies in premium calculations and disrupted teams. A step-by-step migration, with checkpoints at each batch, keeps them under control.
How Korint supports portfolio migration
Korint is an AI-native, modular, API-first insurance suite used by insurers, wholesale brokers, MGAs and delegated authorities in France and across Europe. It covers the entire insurance lifecycle, in P&C and individual health: underwriting, portfolio management, pricing, claims and distribution network management.
Its modularity makes progressive migration possible: a company can start with one product or one module (underwriting, claims, AI), then extend the scope without starting from scratch. Products are configured in low-code, and the platform connects to existing tools through its native integrations and APIs.
See how it works in practice in our use case on modernising an existing insurance portfolio, or book a demo.