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Sommelier qualifications explained: Court of Master Sommeliers vs WSET

Qualifications · 2026-11-07

The two best-known wine qualifications test different things. Here is what each level involves, how long it takes and which one suits the job you want.

Nobody legally needs a certificate to work as a sommelier, but most restaurants, hotels and wine merchants look for one, and the right course speeds up everything you learn on the floor. Two organisations dominate: the Court of Master Sommeliers (CMS), which grew out of restaurant service, and the Wine & Spirit Education Trust (WSET), which grew out of the London wine trade. They overlap, but they are built for different purposes.

The Court of Master Sommeliers has four steps, taken in order. The Introductory Sommelier Certificate is a short course with a multiple-choice exam and covers the main regions, grapes, other drinks and basic service. The Certified Sommelier Examination adds the three things the Court always tests: theory, blind tasting and practical service at a table. The Advanced Sommelier Certificate raises the bar on all three, and the Master Sommelier Diploma is the final exam, passed by only a few hundred people since it began. The Court is organised in regional chapters (the Americas, Europe, Oceania and others), so prices, course lengths and dates vary by country.

What makes the Court different is service. Candidates are judged on opening and decanting bottles, serving sparkling wine safely, recommending wines to a guest and keeping calm under pressure. Tasting is deductive: you describe a wine and work out its grape, region and age. If you want to run a wine list in a restaurant, this is the qualification guests and managers will recognise first.

WSET has four levels in wine. Level 1 is a one-day introduction; Level 2 builds a solid knowledge of grapes and regions; Level 3 adds a written theory paper and a tasting exam using WSET's Systematic Approach to Tasting; and the Level 4 Diploma is around 500 hours of study across six units, from vineyard and winery to the business of wine, still, sparkling and fortified wines. WSET is classroom or online based, its qualifications are regulated in the UK, and it does not test table service.

Which one should you choose? For a floor career in restaurants, the Court's service exams are the most relevant, and many people take WSET Level 2 or 3 first to build theory. For buying, importing, retail, marketing or education, WSET is usually the better fit, and the Diploma is a common step towards the Master of Wine, a separate and even broader qualification run by the Institute of Masters of Wine. Many working sommeliers end up with both.

Whatever route you take, budget time as well as money. The early levels can be done in days, but the advanced levels need months of tasting groups, reading and practice service. Ask your employer about support: many restaurant groups and merchants pay for courses or give time off for exams.

Key points

• No certificate is required by law, but most employers look for one.
• Court of Master Sommeliers: four levels; tests theory, blind tasting and table service.
• WSET: four levels in wine; tests theory and tasting, not service.
• Restaurant floor career: Court exams, often after WSET Level 2 or 3.
• Buying, retail, education: WSET, with the Diploma as a route to Master of Wine.
• Check your local chapter or course provider for current prices and dates.

Sources

• Understanding the sommelier levels – WSET
• Introductory Sommelier Course and Examination – Court of Master Sommeliers Americas
• Court of Master Sommeliers Europe Prospectus 2025

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