Teaching assistants who want to move into training, assessing or teaching roles almost always start with the same question: which AET course actually gets you there? This guide ranks the routes that matter for TAs in 2026, with a straight verdict on each.
- Level 3 AET course for teaching assistants is the fastest legal route from classroom support into paid training roles — start here.
- PTLLS holders qualified before 2013 don’t need a new AET unless progressing to Level 4 or 5.
- Fast-track self-paced AET options suit TAs working full-time; expect several weeks part-time rather than months.
- Level 5 DET is the only route on this list that leads toward QTLS and FE lecturer work.
- Employer-funded AET routes exist for school-based TAs — ask HR before paying out of pocket.
Why this matters
A TA moving into a training role needs a qualification that a school, college or employer will actually recognise — not just a certificate that looks credible on paper. The PTLLS vs AET question trips up more people than it should: PTLLS was retired as the standard entry qualification and replaced by the Level 3 Award in Education and Training (AET), so anyone qualifying fresh in 2026 needs the AET, not the old award.
Getting the wrong level wastes months. A TA who books straight onto a Level 5 Diploma in Education and Training without holding Level 3 first will usually get bounced back by the awarding body or the college delivering it. The picks below are ordered by how directly they move a TA into an actual training or assessing role, not by price.
How this list was ranked
Each route is judged against three things a TA moving into training actually cares about in 2026: does it satisfy the minimum entry requirement for training roles, does it fit around a working TA's hours, and does it lead somewhere (Level 4, Level 5, assessor routes) rather than being a dead end. Pricing referenced below reflects current 2026 course listings; check the live page before enrolling since providers adjust pricing through the year.
The best AET routes for teaching assistants moving into training roles
1. Level 3 Award in Education and Training (AET)
The standard, non-negotiable entry point. Most employers advertising internal trainer, mentor or in-house coaching roles list Level 3 AET as the minimum qualification, and it's the qualification that replaced PTLLS as the industry standard. Level 3 AET courses for teaching assistants online cover planning, delivering and evaluating a microteach session, plus the theory units most awarding bodies require. TAs with no prior teaching qualification start here in 2026, full stop. Verdict: Buy.
2. Legacy PTLLS (Preparing to Teach in the Lifelong Learning Sector)
If a TA already holds a PTLLS certificate from before it was phased out, that qualification still counts for most Level 3-equivalent purposes and doesn't need retaking. The catch: PTLLS won't get accepted as a substitute if the job spec explicitly names AET, and some employers in 2026 no longer recognise it at all without a top-up. Worth checking before assuming it's still valid rather than assuming it isn't. Verdict: Hold if you already have it, Skip trying to obtain it fresh.
3. Level 4 Certificate in Education and Training (CET)
The step after Level 3, aimed at TAs who've already delivered some training and want to formalise assessment and evaluation skills. It's not required to start training colleagues, but it strengthens a case for a permanent training coordinator title rather than an ad-hoc one. Most TAs treat this as a year-two move once Level 3 AET is behind them, not a starting point. Verdict: Wait until Level 3 AET is complete.
4. Level 5 Diploma in Education and Training (DET)
The full teaching qualification, and the only route here that opens the door to QTLS and further education lecturer positions rather than in-house training only. The Level 5 Diploma in Teaching (Further Education and Skills) runs at £166.50 in 2026 and includes observed teaching practice, which most employers treat as the credential that separates a trainer from a lecturer. TAs planning to leave school-based support entirely for FE or adult education work should treat this as the target, even if it takes 12-18 months to complete around a job. Verdict: Buy if the goal is FE or lecturing, Skip if the goal is purely internal training.
5. Fast-track, self-paced online AET
Delivery format matters as much as content for a working TA. A self-paced route with rolling enrolment and no fixed class times lets a TA study evenings and weekends instead of committing to a fixed cohort schedule. The Advanced Teaching Pathway at £123.25 in 2026 is built around this exact constraint — no set lecture slots, tutor feedback on submitted work rather than live sessions. TAs juggling a full timetable and a family should prioritise this format over a fixed-cohort course even if the fixed-cohort option looks marginally cheaper. Verdict: Buy for anyone studying around full-time TA hours.
Comparison at a glance
| Route | Best for | Typical study time | Verdict |
|---|---|---|---|
| Level 3 AET | TAs starting from zero teaching qualification | Several weeks part-time | Buy |
| Legacy PTLLS | TAs who already hold it | N/A — no retake needed | Hold |
| Level 4 CET | TAs formalising an existing training role | Months, part-time | Wait |
| Level 5 DET | TAs targeting FE or lecturing | 12-18 months part-time | Buy for FE-bound TAs |
| Fast-track self-paced AET | TAs with full-time hours and no fixed schedule | Flexible, rolling enrolment | Buy |
Where to enrol
- Confirm the awarding body is Ofqual-regulated before paying — a Level 3 AET that isn't RQF-recognised won't satisfy most school or college HR departments in 2026.
- Ask about tutor feedback turnaround, not just "support included" — a microteach assignment sitting unmarked for three weeks stalls the whole qualification.
- Check employer funding first. Many schools reimburse or part-fund Level 3 AET for TAs moving into training-adjacent roles; asking before enrolling can change which course makes financial sense.
FAQ
What is the best AET course for teaching assistants in 2026?
The Level 3 Award in Education and Training is the best starting AET course for teaching assistants in 2026 because it’s the minimum qualification most employers require for internal training roles. TAs with no prior teaching credential should start there rather than a higher-level diploma.
Is AET better than PTLLS?
AET replaced PTLLS as the standard entry-level teaching qualification, so anyone qualifying fresh should take AET, not PTLLS. PTLLS certificates issued before the changeover generally still count, but employers advertising for AET specifically may not accept it.
How much does an AET course cost in 2026?
Self-paced AET routes for teaching assistants run from roughly £120 upward in 2026, depending on format and support level. Fixed-cohort or classroom-based versions typically cost more due to tutor contact hours.
How long does it take a teaching assistant to complete an AET course?
A self-paced Level 3 AET course typically takes several weeks of part-time study to complete, depending on how quickly the microteach and written assignments are submitted. Fixed-schedule cohort courses usually run longer because they follow set term dates.
Do you need a degree to take an AET course?
No degree is required for the Level 3 Award in Education and Training — it’s designed as an entry-level teaching qualification open to TAs and career changers alike. A degree becomes more relevant at Level 5 DET and beyond if QTLS is the goal.
Can a teaching assistant become a trainer with just Level 3 AET?
Yes, Level 3 AET satisfies most internal training, mentoring and coaching role requirements without needing Level 4 or 5. Progressing to Level 4 CET or Level 5 DET only becomes necessary for formal assessor, IQA or FE lecturing positions.
Is Level 5 DET necessary for a teaching assistant moving into training?
Level 5 DET is not necessary for in-house training roles but is necessary for further education lecturing and QTLS status. TAs aiming purely at internal training or coaching can stop at Level 3 AET.
What’s the difference between AET and CAVA for a TA moving into training?
AET qualifies someone to teach and deliver training sessions, while CAVA (the assessor qualification) qualifies someone to assess other people’s competence against a standard. A TA moving purely into a training-delivery role needs AET; one moving into assessing apprentices needs CAVA instead.
One last thing
The detail that catches most TAs out isn't the qualification level — it's the microteach. Every Level 3 AET course requires a recorded or observed teaching practice session, and it's the single most common reason candidates resubmit work. Reading through the AET micro-teach guide before starting the unit saves more time than choosing between providers ever will.
Related guides
- What you can teach with an AET qualification
- How to fund your AET course with grants and employer payment
- Level 3 AET for workplace trainers
