A Certified Scrum Master is someone trained and tested on how to run a software development team using the Scrum framework

The Certified Scrum Master (CSM) credential means a person has completed training on Scrum — a method for organizing how software teams work together — and passed an exam to prove they understand it. It does not mean they manage people in the traditional sense. Instead, a CSM helps a team follow Scrum rules, removes obstacles that slow the team down, and makes sure the team talks to each other and to the people requesting the work.

The certification is issued by the Scrum Alliance, a nonprofit organization. It is one of the most common credentials in software development, partly because many companies now use Scrum and partly because the training is relatively short — usually one or two days — compared to other tech certifications.

Key Takeaways

  • A Certified Scrum Master helps a team follow Scrum practices but does not hire, fire, or assign work to individual team members.
  • The CSM credential requires attending a two-day training course and passing a 50-question exam with a 74 percent passing score.
  • The certification lasts two years and must be renewed by paying a fee or by earning Scrum Education Units through additional training and work.
  • CSM is one credential among several Scrum certifications; others include Product Owner and Scrum Developer, each with different roles.

What a Certified Scrum Master actually does on the job

A CSM's day-to-day work centers on keeping the team's Scrum process running smoothly. This includes running the daily standup meeting — a 15-minute check-in where each person says what they did yesterday, what they are doing today, and what is blocking them. The CSM also runs the sprint planning meeting at the start of each two-week cycle, the sprint review at the end, and the retrospective where the team talks about what went well and what to improve.

Beyond meetings, a CSM removes what Scrum calls "impediments" — things slowing the team down. If a developer cannot start work because they are waiting for access to a database, the CSM tracks down the right person to grant it. If two teams are stepping on each other's work, the CSM helps them coordinate. If the team is being interrupted constantly by urgent requests, the CSM helps protect their focus time.

A CSM also coaches the team on Scrum itself. If the team is not estimating work accurately, or if they are taking on too much in a sprint, the CSM talks through why and suggests adjustments. They are a teacher and a problem-solver, not a boss.

How the CSM certification training and exam work

To earn the CSM credential, you attend a two-day in-person or online course taught by a Scrum Alliance-authorized trainer. The course covers the Scrum framework, the three roles (Product Owner, Scrum Master, and Development Team), the ceremonies or meetings, and how to handle common problems. You learn by discussion and case study, not by memorizing rules.

After the course, you have 14 days to take a 50-question multiple-choice exam. You need to score 74 percent or higher to pass. The exam tests whether you understand how Scrum works in practice — not just definitions, but how to handle real situations like a team member leaving mid-sprint or a stakeholder demanding a change mid-cycle.

The exam costs money separately from the course. Course prices vary by trainer and location, typically ranging from several hundred to over a thousand dollars. The exam itself costs around $100 to $150.

How long the certification lasts and how to keep it

A CSM credential is valid for two years from the date you pass the exam. After two years, you must renew it. Renewal has two paths: pay a renewal fee (usually $100 to $150), or earn Scrum Education Units by taking additional Scrum training, writing about Scrum, or working as a Scrum Master and documenting your experience.

Many people choose to renew by paying the fee rather than earning units, since the fee is straightforward. However, some employers or clients prefer to see that a CSM is actively learning, so they value the unit-based renewal path.

CSM versus other Scrum certifications

The Scrum Alliance offers several certifications beyond CSM. The Certified Scrum Product Owner (CSPO) trains someone to manage what the team builds — deciding priorities, talking to customers, and accepting finished work. The Certified Scrum Developer (CSD) is for people actually writing the code, teaching them how to work within a Scrum team. There is also the Certified Scrum Professional (CSP), which requires experience and combines multiple certifications.

A CSM is the most common entry point because many organizations need someone to run the Scrum process, and the role does not require deep technical knowledge. A CSPO is more specialized and usually goes to someone with product or business background. A CSD is for developers who want formal training in Scrum practices.

Where CSM fits in a software team's structure

A CSM typically reports to a manager or director, though the reporting line varies by company. Some organizations have one CSM per team of 5 to 10 people. Larger organizations might have one CSM overseeing two or three teams, or a CSM who works across multiple teams in a coaching role.

The CSM role is distinct from a project manager. A project manager often controls budget, timeline, and resources. A CSM has no budget authority and does not assign work to individuals — the team decides how to divide the work among themselves. This separation is intentional: Scrum assumes that teams work better when they self-organize rather than being told what to do.

Why companies care about the CSM credential

Many companies require or prefer the CSM credential for anyone hired into a Scrum Master role because it signals that the person understands the framework. The credential is not a legal requirement — there is no law saying a Scrum Master must be certified — but it has become an industry standard. Job postings often list "CSM or equivalent experience" as a requirement.

The credential also gives a common language. A CSM from one company can move to another and both sides know roughly what the role entails. Without the credential, "Scrum Master" might mean very different things at different organizations.

Frequently Asked Questions

Do I need to be a software developer to get a CSM?

No. The CSM training does not require coding knowledge. You need to understand what a software team does and how Scrum organizes their work, but you do not need to write code yourself. Many CSMs come from project management, business analysis, or other non-technical backgrounds.

How much does the CSM certification cost in total?

Course costs vary by trainer and location, typically $500 to $1,500. The exam costs $100 to $150. Renewal every two years costs $100 to $150 unless you earn education units instead. Some employers pay for the training as part of hiring or professional development.

Can I take the CSM exam without attending the official course?

No. You must attend a Scrum Alliance-authorized two-day course before you are allowed to take the exam. The course attendance is a prerequisite, not optional. You cannot self-study and test directly.

What happens if I fail the CSM exam?

You can retake the exam. There is no limit on attempts, though you pay the exam fee each time. Most people pass on the first try because the course prepares you well for the questions asked.

Is CSM the same as being a project manager?

No. A project manager typically controls budget, timeline, and resource allocation. A CSM has no budget authority and does not assign work to individuals. A CSM helps the team follow Scrum practices and removes obstacles, while a project manager oversees the project as a whole.