London Market Underwriting Principles (LM3) is a Chartered Insurance Institute (CII) unit aimed at people working in, or doing business through, the London Market. It develops knowledge and understanding of underwriting disciplines in that market, and builds on the grounding provided by London Market Insurance Essentials (LM1) and London Market Insurance Principles and Practices (LM2). Together, LM1, LM2, and LM3 lead to the Certificate in London Market Insurance, a recognised qualification for UK insurance professionals.
This guide gives an accessible starting point for anyone considering LM3 as the next step in their London Market career. Brokers, underwriters, delegated authority specialists, and support staff are among those who can benefit from the information provided here. Those who want stronger technical skills and a clearer view of how risks are priced and documented in London may also find this useful.
This is a technical unit offered by the CII and Personal Finance Society for people working in or doing business through the London Market. The LM3 is designed to develop knowledge and understanding of the underwriting disciplines within the London Market.
The unit builds on:
Candidates who complete the LM1, LM2, and LM3 obtain the London Market Insurance Certificate.
There is no public restriction by job title, seniority, or professional designation to obtain this unit. The LM3 is open to anyone who enrols through the CII.
And while there are no formal educational or work experience qualifications, the CII advises LM3 candidates to take the LM1 and LM2. This is to gain foundational knowledge about the London Market and adequately prepare them for the LM3.
You can earn this qualification unit by completing the steps listed below. You can also pursue other important insurance credentials to help you achieve your career goals. If you are already an insurance broker in the UK, you can also try these additional career-boosting courses.
The LM3 is designed for anyone working in or conducting business through the London Market who wants to develop their knowledge and skills for a career in insurance or a support role. It also builds on knowledge from LM1 and LM2, so it best fits learners who have already completed or are comfortable with that level.
Learners should then purchase an enrolment or Enrolment Plus via the LM3 unit page on the CII/PFS website. Enrolment options typically include:
Step 3. Access the LM3 study materials
After purchase, instructions on accessing the course on RevisionMate, CII's online study platform, are sent to the registered email address.
Key points:
You can access the 2026 syllabus through the CII website.
During the enrolment period, you can study the LM3 content. If you purchased Enrolment Plus or standalone revision aids you can use:
If the package includes an exam, the learner books the LM3 exam via MyCII once purchase is complete. This booking step is where the learner chooses the:
exam date and time (within the valid exam window for the syllabus period)
exam mode and location, according to CII's current options
The LM3 examination consists of 75 multiple-choice questions (MCQs). On the booked date, complete the exam under CII exam rules. Passing the exam earns you the LM3 unit credits.
On its own, passing LM3 gives a completed unit. When you've also passed London Market Insurance Essentials (LM1) and London Market Insurance Principles and Practices (LM2), CII confirms completion of the Certificate in London Market Insurance. This final step is handled through the CII's qualification records once all three units have been passed and credited.
CII (including the Personal Finance Society-branded shop) is the main official source of LM3 study materials. There are also a small number of third‑party online revision providers that offer extra support (practice questions, videos, revision cards). Below is a list of what is currently available and legitimate online.
These are the only materials written, owned, and maintained by the CII for London Market Underwriting Principles (LM3). They can be found on the CII/PFS sites and on RevisionMate.
These CII/PFS products (study text, Key Facts booklet, Knowledge Checker) are the only official LM3 study materials and should be treated as the core reference set.
Underwriters, assistant underwriters, and related technical staff in London Market insurers, Lloyd's syndicates and managing agents gain from LM3. This is because it develops knowledge and understanding of the underwriting disciplines within the London Market. It helps these professionals understand how risks are evaluated, priced, and written in a way that fits London Market practice.
Brokers and broking support teams who work in or conduct business through the London Market benefit from taking the course. LM3 is designed for people who want to develop their knowledge and skills for a career in the insurance profession or in a support role. LM3 makes it easier for these professionals to structure placements, negotiate with underwriters, and understand how pricing and contract wording are decided.
Claims handlers, operations staff, technicians, actuarial analysts, compliance, and risk staff working around London Market underwriting benefit by gaining a clearer view of how underwriting decisions are made. The CII notes that LM3 provides the tools and knowledge and skills to be part of a dynamic market, which supports people in both front-line and support roles.
LM3 is one of the three units that achieve this qualification. This is useful for career progression, internal promotion, or demonstrating structured London Market expertise to employers.
People who already work in insurance elsewhere (for example, in regional UK markets or corporate roles) and are moving into London Market business. For these professionals, LM3 is a way to move from general insurance understanding into more specific London Market underwriting practice.
Earning the Certificate in London Market Insurance, which requires the LM3, allows you to apply for various roles within the industry, including:
For those already working with or in the London Market, earning this unit is worthwhile. The unit develops focused knowledge of London Market underwriting disciplines, so it helps build practical skills for roles with London Market insurers, Lloyd's syndicates, brokerage firms, and support functions. Gaining valuable knowledge and honing underwriting skills are essential to staying competitive in the London Market.
It is also one of the three units that complete the Certificate in London Market Insurance, which gives candidates a recognised London Market qualification on their CV. However, LM3 is quite specialised. It is designed for people working in or conducting business through the London Market or in related support roles. The content is less useful for professionals whose work sits entirely in domestic markets or other segments. Insurance professionals who may not find the LM3 a fit for their career objectives should check the CII from time to time, as they may offer new insurance certifications.
Subscribe to Insurance Business Premium today for access to more exclusive content on insurance qualifications in the UK.
