Microservices solve specific problems
Microservices architectures are well suited to specific problems: independent scaling of different parts of a system, enabling multiple teams to work autonomously, and isolating failure domains. If none of those problems currently exist for your product, the case is weaker.
They also introduce real costs
Distributed systems bring genuine operational complexity — network reliability, data consistency across services, more complex debugging and increased infrastructure overhead. These costs are easy to underestimate before a migration and very visible after one.
A practical checklist before migrating
Is a specific part of the system scaling independently from the rest? Are multiple teams genuinely blocked by working in one shared codebase? Is deployment risk concentrated because unrelated changes ship together? If the answer to most of these is no, a monolith — well-structured internally — may still be the better choice.
Consider a modular monolith first
Structuring a monolith into clear, well-separated internal modules often captures much of the organizational benefit of microservices, with a fraction of the operational complexity. It's also a natural stepping stone if a genuine split becomes necessary later.
If you do migrate, go incrementally
Extracting one well-understood service at a time, rather than attempting a full rewrite, keeps the migration reversible and limits risk. It also lets the team build operational experience with distributed systems gradually.
