Summary:
If you’re considering a career in teaching but want greater flexibility, becoming a supply teacher could be an excellent option. Supply teaching allows qualified educators to work in a variety of schools, gain valuable classroom experience, and choose assignments that fit around their lifestyle.
Whether you’re newly qualified, returning to teaching after a break, or looking for a change from a permanent role, this guide explains how to become a supply teacher in the UK and what to expect from the role.
If you’re interested in current opportunities, visit our For Teachers page to learn more about working with Ready to Teach.
A supply teacher provides temporary cover when a permanent teacher is unavailable. This could be due to illness, training days, maternity leave, vacancies, or unexpected absences.
Assignments can range from a single day to an entire academic term, depending on the school’s needs. Some supply teachers work across several schools, while others secure longer-term placements in one setting.
The role involves delivering lessons, managing classroom behaviour, supporting pupils’ learning and following the school’s policies and procedures.
Supply teachers play an important role in helping schools maintain continuity when unexpected absences occur. Learn more about how we support local schools on our For Schools page.
For most primary and secondary school teaching positions in the UK, you’ll need a recognised degree and Qualified Teacher Status (QTS).
| Role | Typical Requirement |
| Primary Supply Teacher | Degree + QTS |
| Secondary Supply Teacher | Degree + QTS |
| SEN Supply Teacher | Degree + QTS |
| Teaching Assistant | Qualifications vary, QTS not usually required |
Qualified Teacher Status can be achieved through several training routes, including university-led teacher training courses and school-based programmes.
If you’ve qualified overseas, you may be eligible to teach in the UK depending on your qualifications and experience.
It’s always worth checking the latest government guidance or speaking with a recruitment specialist if you’re unsure about your eligibility.
The process is often simpler than many people expect.
Many teachers are able to begin working relatively quickly once the registration and safeguarding process has been completed.
For many teachers, supply teaching offers an attractive balance between professional fulfilment and flexibility.
You can continue doing what you enjoy most, teaching and supporting pupils, without necessarily taking on all of the additional responsibilities associated with a permanent role.
In our experience, supply teaching appeals to a wide range of professionals, including newly qualified teachers, experienced educators seeking greater flexibility, and teachers returning to the classroom after a career break.
The role also provides exposure to different schools, leadership teams and teaching environments, helping you broaden your experience and develop new skills.
That said, supply teaching is not without its challenges. You’ll need to adapt quickly, build rapport with new classes and feel comfortable working in unfamiliar environments.
Choosing between supply teaching and a permanent role often comes down to personal preference and career goals.
| Factor | Supply Teaching | Permanent Teaching |
| Flexibility | High | Lower |
| Variety of Schools | High | Low |
| Planning & Marking | Usually Reduced | Higher |
| Long-Term Stability | Lower | Higher |
| Work-Life Balance | Often Greater | Can Vary |
We’ve found that some teachers use supply teaching as a long-term career choice, while others use it to gain experience before moving into a permanent position.
Supply teaching can be rewarding, but it isn’t the right fit for everyone.
If you prefer working with the same pupils every day, want a highly predictable routine, or are specifically looking for a long-term role within one school, a permanent teaching position may be a better option.
However, for teachers who enjoy variety, flexibility and the opportunity to experience different educational settings, supply teaching can be a highly rewarding career path.
Once you’re qualified and ready to start teaching, there are several ways to secure placements.
Working with an established agency can often provide access to a wider range of opportunities and ongoing support throughout your teaching journey.
If you’re unsure how to choose the right agency, read our guide on what to look for in a supply teaching agency before registering.
Ready to Start Your Supply Teaching Career?
Whether you’re newly qualified, returning to teaching, or simply looking for a more flexible way to work, supply teaching offers a valuable opportunity to continue making a difference in the classroom.
If you’d like to learn more about local supply teaching opportunities, get in touch with our team today. We’ll be happy to discuss available roles and help you find placements that match your skills, experience and career goals.
To learn more about the portal or request access, contact the Ready to Teach Cambridge team today.
In most cases, yes. Primary and secondary supply teachers typically require a degree and Qualified Teacher Status (QTS). Requirements may vary for certain support roles.
The 12-week rule relates to agency worker regulations. After completing 12 weeks in the same role at the same school, agency workers may become entitled to the same basic pay and working conditions as comparable permanent employees.
For many teachers, yes. It offers flexibility, variety and the opportunity to gain experience across different schools while maintaining a healthy work-life balance.
Yes. Early Career Teachers (ECTs) can undertake supply teaching and often use it as a way to gain experience in different school environments.
Most schools prefer supply teachers to hold Qualified Teacher Status. However, requirements can vary depending on the role, school type and local demand.