Umbraco or WordPress? Which CMS fits your business
The platform question usually gets asked too early. It only makes sense once you know who maintains it, what gets integrated and how long the site should live.
The real difference
WordPress is open and flexible because almost everything is solved with plugins. That is exactly where the risk comes from: every plugin is third-party code with its own update rhythm and its own security posture. Umbraco models content strictly: there are defined content types with defined fields. Editors can break less, but the model has to be designed properly up front.
When WordPress is the right choice
Small to mid-sized, content-driven sites. Blogs, associations, practices with manageable scope. When someone on the team knows it, or when a maintenance contract covers plugin upkeep.
When Umbraco is the right choice
Multiple languages with a real translation workflow. Multiple locations or tenants. Editorial teams with different permissions and approval processes. Integration with existing systems over APIs. And anywhere IT already runs a .NET environment.
Cost over five years
Licence cost is zero for both. The difference is maintenance. WordPress produces many small updates, Umbraco fewer larger ones. In total they land in a similar place but distribute the work differently. It only gets expensive with commercial per-seat platforms: with ten editors that quickly adds up to a five-figure sum over five years which open source avoids entirely.
The question that actually matters
Not "which system is better", but: who maintains the site in two years? If the answer is "our team", backoffice usability decides. If it is "our agency", what decides is how easily that agency can be replaced. Both systems allow it, because the source code and content are yours.
Migration is not a reason to stay
Content can be migrated between both, including a redirect plan so rankings are not lost. The effort depends on the number of pages and how structured the old content is, not on the target system.