Credentials
What a credential costs, and who it works out for
A licence or a certificate is not a job and does not have a wage. It is an edge: money and months in, a particular kind of work out. These are sorted by how long the pay premium takes to cover the cost — never by pay, because a credential does not have any.
Why this is the page that has the denominator
Federal pay data reports what people who are EMPLOYED in an occupation earn. Everyone who trained for it and never got hired is absent from that figure entirely — which makes every median on every pay site, including ours, a survivor's number. The bodies that issue licences and certifications are the only organisations that count the people who trained. Setting those counts against employment is the closest anyone can get to the real denominator, and as far as we can tell nobody publishes it as a comparable set.
With one hard limit. Holding a credential is not the same as wanting a job with it. The share shown is an upper bound on how many holders are working in the field, and its complement is NOT an unemployment rate — it contains everyone who retired, changed direction, moved into management or teaching, or holds the credential as a second string. Where a body only publishes how many people qualified in a year rather than how many hold the credential today, we publish that count and refuse to turn it into a percentage.
Pay and employment: BLS Occupational Employment and Wage Statistics, May 2025. Credential-holder counts: the issuing body in each case, cited on the credential's own page.
The rules these pages follow
| Gate | Requirement |
|---|---|
| Never an hourly rate | A credential has no wage and is never sorted into a list ranked by one. The pay belongs to the job it unlocks and is shown against that job, on that job’s page. A record here carrying a pay figure of its own is rejected by the publish gate rather than by review. |
| Stock is never divided by flow | How many people passed an exam last year and how many people hold the credential today are different quantities. Each page states which it has. Where the count is an annual flow, the share-employed figure is withheld rather than caveated. |
| An upper bound, stated as one | Credential holders are not jobseekers. The share employed is the ceiling on how many trained people the field could draw on, and the remainder is not unemployment. That sentence appears on every page that shows the figure, in the body copy, not in a tooltip. |
| No source, no number | Every count names the body that published it, the year, and exactly what it counts — including what inflates it, such as one person licensed in several states. A credential whose numbers we cannot source publishes without them and says so. |
| The counterfactual is named | “Payback” is meaningless without saying payback against what. Ours is the employment-weighted median across every occupation on this site. We do not know what a reader earns now and do not assume it. |
| No courses, ever | We do not sell training, and no school or programme can pay to appear on these pages or to be ordered above another. That is the one revenue line permanently closed to this site, and it is the specific conflict these pages exist to correct. |
Self-employment failure rates · How this is calculated · Look up something else