The detail
For a UAE business, DET and ADDED are the mainland counterparts of each other, and understanding them is mostly about knowing which applies to you and what they do, and, importantly, what they do not do.
The Dubai Department of Economy and Tourism (DET, formerly the Department of Economic Development or DED) is the authority responsible for mainland business licensing and economic regulation in the emirate of Dubai. It issues and renews mainland trade licences, registers business activities, and administers the commercial framework for Dubai mainland companies. The Abu Dhabi Department of Economic Development (ADDED) does the equivalent for the emirate of Abu Dhabi, mainland licensing, activity registration, and economic regulation there.
So the core difference is jurisdictional: DET governs Dubai mainland, ADDED governs Abu Dhabi mainland. A mainland company deals with the authority of the emirate it is licensed in. They are analogous bodies performing analogous functions in their respective emirates, each with its own procedures, activity lists and licensing specifics, but conceptually parallel.
What is essential to understand is the boundary of their role. DET and ADDED are licensing and economic-regulation authorities, they govern your right to trade and your business licence. They are not tax authorities. Corporate tax and VAT are administered federally by the Federal Tax Authority, and neither DET nor ADDED sets, collects or administers them. This distinction matters because businesses sometimes conflate their licensing authority with their tax obligations, assuming that dealing with DET or ADDED covers their tax position. It does not: your DET or ADDED licence is one thing, your federal tax registration and filing another, and both must be handled.
What DET and ADDED each do
Both authorities perform the mainland economic-regulation role for their emirate, which includes:
- Issuing mainland trade licences: the licence that permits a mainland company to operate in the emirate
- Renewing licences: the annual (or periodic) renewal that keeps the business in good standing
- Registering business activities: defining what the licensed company is permitted to do
- Regulating commercial activity: administering the mainland business framework in the emirate
- Related approvals: the various registrations and approvals that accompany mainland licensing
- DET only: a tourism remit: DET also carries responsibilities for Dubai’s tourism sector, reflected in its name
The functions are parallel: each is the mainland licensing and economic authority for its emirate. The main functional nuance is that DET’s remit explicitly includes tourism (hence ‘Economy and Tourism’), while ADDED is focused on economic development, but for a general mainland business, the licensing role is what matters and it is equivalent.
Mainland versus free zone, and which authority applies
A key point of context is that DET and ADDED are the mainland authorities. They are relevant to mainland companies, whereas free zone companies are licensed by their free zone, not by DET or ADDED.
If you establish a mainland company in Dubai, DET is your licensing authority. If you establish a mainland company in Abu Dhabi, ADDED is. But if you establish in a free zone (DMCC, IFZA, JAFZA, ADGM, KIZAD, DIFC, and so on) your licensing authority is that free zone, which issues and renews your licence and sets its own requirements (including, often, audit obligations), and you do not deal with DET or ADDED for your licence. This is why understanding your setup matters: ‘which authority governs my licence’ has a different answer for a mainland company than a free zone one, even within the same emirate.
This also explains why the DET/ADDED distinction, while real, is often less consequential for a business than the mainland-versus-free-zone distinction. Whether you are DET or ADDED depends only on which emirate your mainland company sits in, and the two authorities perform equivalent functions. Whether you are mainland (DET/ADDED) or free zone (your zone) affects much more, your licensing authority, your permitted activities, your audit requirements, and aspects of how corporate tax’s free zone rules may apply to you. So when mapping your obligations, the first question is usually mainland or free zone, and only then, if mainland, which emirate’s authority, DET or ADDED, applies.
Keeping licensing and tax separate in your mind
The most useful takeaway from the DET-versus-ADDED question is a clear separation in your own understanding between your licensing authority and your tax obligations, because conflating them causes real gaps.
Your licensing authority (DET, ADDED, or your free zone) governs your right to trade: your trade licence, its renewal, your permitted activities, and (for free zones) often your audit requirements. Your tax obligations, corporate tax and VAT, are federal, administered by the Federal Tax Authority, and entirely separate from your licensing authority. Renewing your DET or ADDED licence does not address your corporate tax registration or filing; registering for corporate tax does not renew your licence. They are parallel obligations that must both be met, and a business that attends to one while assuming it covers the other leaves a gap.
In practice, a well-run mainland company tracks both: the DET or ADDED licence-renewal cycle on one track, and the federal corporate tax and VAT obligations on another, coordinated so nothing is missed. For a free zone company, it is the zone’s licensing and audit requirements on one track and federal tax on the other. The DET/ADDED distinction itself is simple (same role, different emirate) but the more valuable insight it points to is that your licensing authority and your tax authority are different bodies with different requirements, and keeping them distinct in your compliance planning is how you ensure both your licence and your tax filings stay in good order.
What trips people up
- Thinking DET and ADDED are fundamentally different, when they are the same role in different emirates.
- Assuming your licensing authority handles your tax, when tax is federal via the FTA.
- Confusing renewing a licence with meeting tax obligations, which are separate.
- Expecting DET or ADDED to be relevant to a free zone company, when the free zone is its authority.
- Focusing on the DET/ADDED distinction over the more consequential mainland-versus-free-zone one.
- Overlooking that both a licence and a tax registration must be maintained.
- Assuming activities permitted by one authority automatically apply under another.
How to act on this
- Identify whether you are mainland or free zone: the more consequential question.
- If mainland, know your authority: DET for Dubai, ADDED for Abu Dhabi.
- Track your licence-renewal cycle with the relevant authority.
- Separately track your federal corporate tax and VAT obligations with the FTA.
- Coordinate both so neither the licence nor the tax filings are missed.
Related questions
Frequently Asked Questions
What is the difference between DET and ADDED?
DET (Dubai Department of Economy and Tourism) and ADDED (Abu Dhabi Department of Economic Development) are the mainland business licensing and economic authorities for their respective emirates, DET for Dubai, ADDED for Abu Dhabi. They perform the equivalent role; the difference is simply which emirate each governs.
What does DET do?
DET is Dubai’s mainland licensing and economic-regulation authority (formerly the DED). It issues and renews mainland trade licences, registers business activities, and administers the commercial framework for Dubai mainland companies. Its remit also includes tourism, reflected in its name, Economy and Tourism.
What does ADDED do?
ADDED is Abu Dhabi’s mainland economic development authority, performing the equivalent role to DET in Abu Dhabi, issuing and renewing mainland trade licences, registering activities, and regulating commercial activity in the emirate. It is ADDED you deal with for a mainland company licensed in Abu Dhabi.
Which authority applies to my company?
It depends on where and how you are set up. A Dubai mainland company deals with DET; an Abu Dhabi mainland company deals with ADDED. A free zone company (in DMCC, IFZA, ADGM, DIFC and so on) is licensed by its free zone, not by DET or ADDED. So identify mainland versus free zone first, then, if mainland, the emirate.
Do DET or ADDED handle corporate tax?
No. DET and ADDED are licensing and economic-regulation authorities, not tax authorities. Corporate tax and VAT are administered federally by the Federal Tax Authority. Renewing your DET or ADDED licence does not address your tax obligations, and the two must be handled separately.
Are DET and ADDED relevant to free zone companies?
No. Free zone companies are licensed by their free zone, which issues and renews the licence and sets its own requirements, including any audit obligations. A free zone company does not deal with DET or ADDED for its licence. Those authorities are for mainland companies in their respective emirates.
Is the DET/ADDED distinction important?
Less so than the mainland-versus-free-zone distinction. Whether you are DET or ADDED depends only on which emirate your mainland company sits in, and the two do equivalent things. Whether you are mainland or free zone affects much more, your authority, activities, audit requirements and how free zone tax rules may apply.
Does my licence cover my tax obligations?
No. Your licensing authority governs your right to trade, your licence, its renewal, your activities. Your tax obligations are federal and separate. A business that renews its licence but overlooks corporate tax registration and filing, or vice versa, leaves a gap. Both must be tracked and met independently.
What should I actually track?
Two parallel tracks: your licence-renewal cycle with the relevant authority (DET, ADDED or your free zone) and your federal corporate tax and VAT obligations with the FTA. Coordinating both ensures neither your right to trade nor your tax filings lapse. The DET/ADDED distinction is simple; keeping licensing and tax separate in your planning is the valuable part.
Tell us where and how your company is set up, mainland or free zone, which emirate. We will map your licensing authority and your separate federal tax obligations so both stay in good order.
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Last reviewed 27 July 2026. Rates, thresholds and deadlines change, the e-invoicing provider deadline has already moved once. Confirm current requirements with the Federal Tax Authority before acting, or ask us to check your position.