These are examination fees only. They register you for the official International Lean Six Sigma Institute (ILSSI) exam; they do not include a training course. On passing, your certification is issued by ILSSI, the global professional body, with a digital badge for LinkedIn and your resume.
- Yellow Belt exam $220, Green Belt exam $290, Black Belt exam $470, all + GST (AUD)
- Online, proctored, timed multiple-choice format (50, 100 or 150 questions by belt level)
- One free exam retake included with your registration
- Administered by Lean Sigma Experts Australia (LSEA), an ILSSI-accredited partner
- Official ILSSI exam
- Third-party certification
- Online proctored
- One free retake included
- Exam fees only
What is the ILSSI certification exam?
The ILSSI certification exam from the International Lean Six Sigma Institute (ILSSI) is a proctored, timed way to certify your Lean Six Sigma knowledge with a globally recognised professional body. You register through Lean Sigma Experts Australia (LSEA), ABN 81 604 347 604, an ILSSI-accredited partner, sit the official online exam at Yellow, Green or Black Belt level, and on passing receive your ILSSI certification with a digital badge for LinkedIn and your resume.
This page is for the exam only. It suits professionals who have already completed Lean Six Sigma training, with us or with another provider, or who have practical experience and want their knowledge independently certified under exam conditions. If you need to learn the material first, start with a training course: our self-paced Yellow Belt, Green Belt and Black Belt programmes cover the full body of knowledge for each belt level, so they prepare you for this exam directly.
ILSSI exam fees in Australia (2026)
| Exam | Fee (AUD, + GST) |
| ILSSI Certified Yellow Belt™ Exam | $220 |
| ILSSI Certified Green Belt™ Exam | $290 |
| ILSSI Certified Black Belt™ Exam | $470 |
These are examination fees only. Training courses are sold separately. All fees are quoted in Australian dollars and exclude GST. Prices may be subject to change.
Download the ILSSI exam fees brochure (PDF)
Exam or training course: which one do you need?
| ILSSI exam (this page) | Training course | |
| What you get | Official ILSSI examination and, on passing, an ILSSI certification with digital badge | Full training content, graded assessments and an LSEA course certificate |
| Fee basis | Exam fee only ($220 to $470 + GST by belt) | Course fee (from $925 + GST, includes all training content and graded assessments) |
| Typical path | Taken after training | Taken first; prepares you for this exam if you want it |
Many professionals complete a course, use the LSEA certificate as their working credential, then add an external certification when they want independent, third-party recognition as well.
How the exam process works
- 1. Register: choose your belt level above and complete your purchase. We arrange your ILSSI exam registration and email your instructions.
- 2. Prepare: study against the Lean Six Sigma body of knowledge for your belt level, using your course materials or ILSSI's published standards. Your exam access details and scheduling are confirmed by email.
- 3. Sit the exam: the ILSSI exam is taken online under proctored conditions: 50 multiple-choice questions in 1 hour for Yellow Belt, 100 in 2 hours for Green Belt, or 150 in 3 hours for Black Belt.
- 4. Retake if needed: one free exam retake is included with your registration.
- 5. Get certified: on passing, the International Lean Six Sigma Institute issues your certification, with a digital badge you can display on LinkedIn and your resume.
What is the International Lean Six Sigma Institute (ILSSI)?
The International Lean Six Sigma Institute (ILSSI) is a global professional body dedicated to advancing Lean Six Sigma excellence through internationally recognised certification, education and best-practice standards. ILSSI certifications follow standardised assessments aligned with global Lean Six Sigma standards, and ILSSI exams are available in 11 languages.
ILSSI examinations are delivered online under proctored, timed conditions, which many employers read as a rigorous assessment format. Successful candidates receive an ILSSI certification with a digital badge, and join a worldwide community of Lean Six Sigma practitioners.
Lean Sigma Experts Australia is accredited for ILSSI exams, and the accreditation can be checked on ILSSI's public partner register.
Benefits of the ILSSI exam
- Globally recognised Lean Six Sigma certification, validated internationally
- Online, proctored exams for secure and convenient testing
- One free exam retake included
- Digital badges to showcase your achievement on LinkedIn and your resume
- Standardised assessments aligned with global Lean Six Sigma standards
- Exams available in 11 languages
- Flexible pathways, including project-based certification options
- Access to a worldwide community of Lean Six Sigma practitioners
ILSSI or CSSC: two external certification pathways
Lean Sigma Experts Australia is accredited for two named, independently verifiable external certification bodies, and you can choose the one that fits how you like to be assessed. Both are exam-only fees, separate from training.
| ILSSI (this page) | CSSC | |
| Certifying body | International Lean Six Sigma Institute, a global professional body | Council for Six Sigma Certification, a US-based independent third party |
| Format | Online, proctored, timed multiple-choice exam | Open-book, non-timed; online or at a testing centre |
| Attempts | One free retake included | Three attempts within 12 months |
| Fees (ex GST) | YB $220 / GB $290 / BB $470 | YB $250 / GB $365 / BB $495 |
| Suits you if | You want a proctored, timed exam and a digital badge | You want an open-book format with no time pressure and a public registry listing |
Prefer the open-book format? See the CSSC Lean Six Sigma certification exams. Unsure which fits? Ask us before you register.
Why register through Lean Sigma Experts Australia
Your ILSSI exam is administered by Lean Sigma Experts Australia (LSEA), ABN 81 604 347 604, an ILSSI-accredited partner whose accreditation you can verify on ILSSI's public partner register. Registering here means you deal with an Australian registered business, pay in Australian dollars with a GST tax invoice, and can ask us which belt level or certification body fits your experience before you commit. If you later decide you need the training as well, the courses and both exam pathways are in one place.
Frequently asked questions
What is the difference between the ILSSI exam and a training course?
The ILSSI exam is an assessment only: you pay an exam fee, sit the official proctored test, and on passing receive certification from the International Lean Six Sigma Institute. A training course teaches you the material and includes its own graded assessments and an LSEA course certificate. The exam fees on this page do not include any training.
Who issues the certification when I pass?
The International Lean Six Sigma Institute (ILSSI) issues your certification. The exam is administered in Australia by Lean Sigma Experts Australia, an ILSSI-accredited partner, which is separate from the body that certifies you, and that separation is what makes the credential independently credible.
How much does the ILSSI exam cost in Australia?
As at 2026, the ILSSI exam fees through Lean Sigma Experts Australia are $220 for Yellow Belt, $290 for Green Belt and $470 for Black Belt, all plus GST and quoted in Australian dollars. These are exam fees only; training courses are priced separately.
What is the exam format?
ILSSI exams are online, proctored and timed, using multiple-choice questions: 50 questions in 1 hour for Yellow Belt, 100 questions in 2 hours for Green Belt, and 150 questions in 3 hours for Black Belt.
What happens if I do not pass?
One free exam retake is included with your registration.
Do I need to complete training before sitting the exam?
Most candidates complete a Lean Six Sigma course first, because the exam tests the full body of knowledge for your belt level under timed, proctored conditions. ILSSI also offers flexible pathways, including project-based certification options; contact us and we will confirm the pathway that fits your experience.
How do the ILSSI and CSSC exams differ?
ILSSI exams are proctored, timed, multiple-choice tests with one free retake and a digital badge. CSSC exams are open-book and non-timed, with three attempts within 12 months and a public certification registry. Both are independent certification bodies, and Lean Sigma Experts Australia is accredited for both, so you can choose the format that suits you.
How can an employer see that my certification is genuine?
ILSSI certifications come with a digital badge you can display on LinkedIn and share with employers. The accreditation of Lean Sigma Experts Australia as an ILSSI partner can also be checked by anyone on ILSSI's public partner register.
Ready to certify, or need the training first?
To register for your ILSSI exam, choose your belt level above and add it to your cart. If you need to learn the material first, start with a course built to the full body of knowledge, or contact us if you are unsure which pathway fits.