Headless CMS migration cost, according to published guides, runs from about $10,000 to $100,000 or more. Setting up a traditional CMS for a small or medium site is quoted at $500 to $5,000. That gap is real, and for some businesses it pays back. For a lot of others it is money spent fixing the wrong problem.
The licence is rarely the surprise. Plans range from free tiers and about $100 a month up to roughly $489 a month for a team plan and around $2,000 a month at enterprise level. The integrations are where budgets move: connecting the new CMS to your forms, search, commerce or analytics is quoted at $5,000 to $15,000 when simple and $20,000 to $50,000 or more when it is not.
The biggest cost is usually content. Hygraph's migration guide calls content and data management arguably the biggest and most costly part of the job. Old content is tied to the old system, with fields, formatting and plugins that do not map across cleanly. Someone has to audit what you have, decide what to keep, and design the new content model. That model is a long-lived decision. It sets what your editors can and cannot do for years, and it is hard to change once a thousand entries sit inside it.
Then there is search. Every URL, title and meta tag has to survive the move, and the same guide says to check them and run a broken link checker before launch. A migration that drops your rankings costs more than the build did, because the traffic you lose is the traffic that pays for the site. The redirect map and the crawl check are dull work that decides whether the launch goes well. Hand that part to someone who has done it before.
After launch the bill continues. One guide puts headless maintenance at 15% to 25% of the licence cost per year. Usage-based pricing counts entries, locales, API requests, bandwidth and assets, so a growing site pays more. Hosting runs from $5 a month to several thousand. Headless also needs a developer on call. When an editor wants a new field or layout, that usually means a ticket, where a traditional setup often lets them do it themselves. Budget for it, and budget a contingency too: Hygraph suggests around 15 to 20%.
So when does it pay off? When your content has to go to more than one place, such as the website, an app, a kiosk and email. When you run several languages. When your content library is large and your developers are blocked by the old CMS. In those cases, publishing once and reusing everywhere saves real time, and the Webstacks guide says costs grow more slowly as you expand. Neither source gives a breakeven date, and we are not going to invent one. Both are written by firms that sell headless work, so read their enthusiasm with that in mind.
When does it not? One brochure site, one language, a few editors, and a CMS that mostly works. Spending $10,000 or more because the editing screen is slow is the wrong fix. Check the template, the hosting and the plugins first. We think headless is a good answer to a specific problem and a poor default.
Before you ask anyone for a quote, write down four things: how many channels you publish to, how many languages, how many people edit, and what actually hurts today. Bring that list to a studio and ask them to argue against going headless. If they cannot find a reason to talk you out of it, you have a real case for the move.