Latest Updates:

SLS Manifesto for Education 2026 available now

Depute Headteacher

£ 28.65

Per Month until end of June 2026
  • Professional learning courses
  • Events & conferences
  • Exceptional help & advice
  • Access to Field Officer and General Secretary
  • Access to first class legal advice & support
Sign up now!

Faculty Head/Principal Teacher/Business Manager/BursarMost Popular

£ 21.10

Per Month until end of June 2026
  • Professional learning courses
  • Events & conferences
  • Exceptional help & advice
  • Access to Field Officer and General Secretary
  • Access to first class legal advice & support
Sign up now!

Headteachers

£ 37.20

Per Month until end of June 2026
  • Professional learning courses
  • Events & conferences
  • Exceptional help & advice
  • Access to Field Officer and General Secretary
  • Access to first class legal advice & support
Sign up now!

Why Join?

As a school leader you need information that’s relevant to your role as a senior leader. Because SLS only represents leaders of secondary schools, all our work is focused on the sector, from financial management to understanding the latest government guidelines. We’ll give you the professional support and guidance you need and you can also be assured of the best trade union support should things ever go wrong. Our membership numbers continue to grow as more leaders recognise the benefits of joining an association that so clearly addresses their needs. Can you afford not to join us?

Are there any incentives?

The current rates are shown below.  Following the AGM in November 2020 it was agreed that from 1st February each year they may increase slightly.  At the AGM 2025 in March it was agreed to hold the rates at the current levels for another year. The current full charge: Heads – Annual £446.40 Monthly £37.20,  Deputes – Annual £343.80 Monthly £28.65, Faculty Head / Principal Teacher / Bursar / Business Manager – Annual £253.20 Monthly £21.10.