Dubai issues several distinct trade licence categories, and the professional versus commercial distinction is one of the most consequential — it affects ownership rules, the local service agent requirement, and which legal structures (sole establishment, civil company, LLC) actually fit your activity.
What each category covers
A professional licence covers services delivered primarily through personal skill or expertise — consultancy, legal services, medical practice, accounting, and similar service activities. A commercial licence covers general trading, buying and selling goods, and other commercial activities. Industrial licences (manufacturing) are a third, separate category not covered by this distinction.
Why the distinction matters for ownership and structure
Professional licences have historically had more flexible foreign ownership rules in some cases, sometimes still involving a local service agent (who does not take an equity stake, unlike the pre-reform local partner requirement) for certain activities — while commercial licences follow the standard ownership rules that now permit 100% foreign ownership for most activities following the UAE's reforms. Confirm the current specific rule for your activity, since categorisation affects which structures (sole establishment, civil company) are actually available to you.
Getting this right before you apply
Choosing the correct licence category for your actual activity matters more than it might first appear, since it determines your available legal structures and ownership rules — confirm your activity's specific classification with DET before finalising your business plan. This site's Business Setup Cost Calculator and Free Zone vs Mainland Tool can help with the broader formation decision once your activity category is confirmed.