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UAE Unified Number (UID): The Complete Guide — What It Is, Where to Find It, and How to Check It Online

Krystyna Sokolovska
Krystyna Sokolovska
Published: September 8, 2025
13 min read

Summary (for users in a hurry)

  • Unified Number (UID) = your immigration identifier in the UAE.

  • You’ll see it on entry permits, residence visa stickers/eVisas, and you can retrieve it via GDRFA/ICP online services.

  • It is not the same as your Emirates ID number or your residence permit/visa number.

  • You’ll need your UID to apply for Emirates ID, manage visa renewal/cancellation, and use many government services.

  • If your UID is missing or duplicated, GDRFA/ICP can locate/merge it.

What is the UAE Unified Number (UID)?

The UAE Unified Number, often called the UID number, is a unique immigration identifier assigned to every individual who enters the UAE and interacts with its immigration system. Think of it as your permanent immigration profile number: it links your identity across visas, entry permits, and residency records.

Key points:

  • The UID is generated and maintained by GDRFA (General Directorate of Residency and Foreigners Affairs) and recognized across the UAE’s immigration platforms, including ICP (Federal Authority for Identity, Citizenship, Customs & Port Security).

  • A person usually receives a UID upon first entry or when an entry permit/visa is issued.

  • The UID does not expire; it’s your long-term immigration identity.

  • It is frequently required for Emirates ID applications, residence visa issuance/renewal, and various government e-services.

Why people confuse it: The UAE system uses multiple identifiers—UID, Emirates ID number, residence visa number, residence file number—each with a different purpose. This guide clarifies the differences and shows where to find each one.

UID vs Emirates ID vs Residence Visa Number vs File Number

Below is a side-by-side comparison to help you quickly understand each term and avoid mixing them up:

Identifier Issued By Purpose Where You’ll See It Does It Change?
UID (Unified Number) GDRFA (recognized by ICP) Immigration identity linking all visa & entry records Entry permit, residence visa sticker/eVisa, online portals No (permanent; duplicates can be merged)
Emirates ID Number ICP National ID for residents (banking, telecom, services) Emirates ID card & ICP account Stays same while valid; reissued on renewal
Residence Visa Number GDRFA Identifies a specific residence visa Residence visa (sticker/eVisa PDF) Yes (new visa/renewal → new number)
Residence File Number GDRFA/ICP Immigration/residency file reference Visa sticker/eVisa & portals May change with sponsor/category
Labour Card Number MOHRE Employment identity in labour system MOHRE app/portal May update with job/status

Where to Find Your UID Number (passport, visa, eVisa)

Depending on your document type and the emirate, your UID may appear in slightly different sections or labels. Look for any of the following cues:

  1. Residence Visa (sticker or eVisa PDF)

    • Often labelled “Unified Number”, “UID No.”, or “Unified ID”.

    • On eVisas, it appears in the header block alongside visa and file details.

  2. Entry Permit / Entry Visa

    • If you are entering for employment, investment, family sponsorship, or study, the entry permit document generally shows the UID.

  3. Passport Page with UAE Visa

    • If you have a physical sticker, scan the printed fields. Some formats list “UID” explicitly; others place it near file number.

  4. Online Portals

    • GDRFA and ICP can display your UID after you enter passport details and personal information.

Pro tips:

  • Don’t confuse UID with the Emirates ID number printed on your card. They serve different systems (immigration vs national identity).

  • If your visa shows “Unified Number” and a sequence of digits—that’s your UID number.

  • Format: There is no single universal length/format across all years and categories; formats can vary. Focus on the label rather than guessing by pattern.

How to Check Your UID Number Online (GDRFA, ICP, Amer)

There are multiple legitimate ways to retrieve or verify your UID number:

Option 1 — GDRFA Dubai (web)

Step 1 — Open the official website
Go to the GDRFA Dubai website and open the Unified Number / File Validity inquiry page (names can vary: Unified Number Inquiry, File Validity, Entry Permit Inquiry). If you don’t see it in the menu, use the site search for “Unified Number” or “UID”.

Step 2 — Enter your details
Fill in the required fields exactly as in your passport:

  • Passport Number (no spaces)

  • Nationality (from the dropdown)

  • Date of Birth (use the site’s date format)

  • Gender (shown on some forms)

Step 3 — Complete the verification
Solve the simple security check (captcha/math question) and confirm any on-screen terms.

Step 4 — Submit the request
Click Submit to run the query.

Step 5 — View your result
If a match is found, the page will display your Unified Number (UID) and related immigration file details.

If no record appears:

  • Recheck the passport number, DOB format, and nationality selection.

  • Try again without extra spaces or symbols.

  • If the portal still shows “no records found,” visit an Amer Centre or use the ICP Smart Services portal to cross-check.

Option 2 — ICP Smart Services (all Emirates)

  1. Go to ICP Smart Services (smart services portal).

  2. Use the File Validity or Visa/Residency inquiry tool.

  3. Provide passport, nationality, and DOB.

  4. The portal displays your UID along with visa status when records match.

Option 3 — Amer Centres (Dubai)

  • Visit any Amer Centre with your passport and visa copy.

  • Request a UID lookup or file validity check at the counter.

Heads-up: Portal labels and menu names can change over time; if one path isn’t visible, use the portal’s search bar for “file validity”, “unified number inquiry service”, or “UID”.

How to Get a UID Number (first time, lost UID, duplicates)

First-time issuance

You don’t apply separately for a UID. It is generated automatically when an entry permit or visa is issued, or upon first entry through UAE immigration. This applies to employees, investors, dependents, students, and even tourists.

If you “lost” your UID

  • Retrieve it using GDRFA or ICP online tools (see previous section).

  • If the portal can’t find it, visit Amer (Dubai) or an ICP service centre with your passport.

Duplicate UIDs (rare but critical)

  • Sometimes people end up with two UIDs (e.g., multiple entries under different statuses or older system migrations).

  • Duplicates can cause trouble when applying for Emirates ID, residence renewals, or labour contracts.

  • Solution: Ask GDRFA/ICP to merge UIDs so that all records map to one unified profile.

How the UID relates to Labour Card (MOHRE)

Many users search for “how to check labour card online” or “how to get labour card number online” while dealing with UID:

  • The labour card (now largely digital via MOHRE app/portal) is your employment identifier in the labour system.

  • Your UID is often referenced in cross-checks between immigration (GDRFA/ICP) and labour (MOHRE) records.

  • To check your labour card details:

    1. Install/open the official MOHRE app or visit the MOHRE e-services site.

    2. Sign in (or use UAE Pass).

    3. Use “My Contracts” / “Labour Card” sections to retrieve your profile.

  • While you can’t derive a UID solely from MOHRE, consistent identity data (passport, Emirates ID) helps systems match you correctly.

Common Use Cases & When You’ll Need UID

  • Applying for Emirates ID (EID): UID is a required field during EID registration/renewal.

  • Residence visa issuance/renewal/cancellation: Immigration services reference UID to ensure your file is consistent.

  • Changing sponsor or job: Authorities link your immigration profile via UID.

  • Government e-services: Housing, licensing, and health services may ask for UID in online forms.

  • Correcting immigration records: If there’s any mismatch in your identity data, officers will use the UID to trace your file.

Troubleshooting & Edge Cases

“My visa shows no UID field”

Some print layouts or PDFs hide it behind different labels (e.g., Unified Number, UID No., or nested in file details). Run a GDRFA/ICP search with passport data.

“My UID and Emirates ID don’t match records”

That’s normal—they’re different systems. If your Emirates ID application fails due to record mismatch, visit ICP with your documents; they can reconcile data referencing your UID.

“Two UIDs found under my name”

Request a UID merge at GDRFA/ICP. Bring passport, any old entry permits, and residence visa copies.

“I changed my passport—will my UID change?”

No. UID stays the same. Update your passport details with GDRFA/ICP/MOHRE so all systems reflect your new passport number.

“Tourist with UID—does it matter?”

Yes. Tourists receive a UID too. If you later switch to employment or investor residence, that UID helps link your record.

Examples & Practical Tips

Practical tips to avoid confusion

  • Screenshot your eVisa and entry permit and keep a digital copy. Use your system search for “Unified Number” or “UID”.

  • In forms, don’t paste your Emirates ID number where UID is requested. They’re different.

  • When contacting support (GDRFA/ICP/Amer), have ready: passport, entry permit/eVisa, residence visa copy, and Emirates ID (if any).

Example labels you might see (textual mock-ups)

  • Unified Number / UID No.: 1234567890

  • File No.: 201/XXXXXXX/XXXXXX

  • Residence Visa No.: XXXXXXXXX

  • Emirates ID No.: 784-XXXX-XXXXXXX-X

Note: These are anonymized examples. Actual lengths and formats can vary by year, emirate, and document type.

FAQ: UAE UID / Unified Number

Below is an expanded FAQ designed to capture long-tail searches and People-Also-Ask (PAA) style queries while remaining user-friendly.

Q1. What is a UID number in the UAE?
It’s your Unified Number — a permanent immigration identifier used by GDRFA/ICP to link your entry permits, visas, and residency records.

Q2. What does “UID number means” / “UID means UAE” refer to?
It refers to the UAE’s Unified Identification Number assigned to each individual in the immigration system.

Q3. Is the UID number the same as my Emirates ID number?
No — UID is for immigration records; the Emirates ID number is your national identity number printed on the card.

Q4. Where can I find my UID number?
On your entry permit or residence visa (sticker/eVisa), or via GDRFA/ICP online inquiries using your passport details.

Q5. What is a residence permit number in the UAE?
It’s the number of your current residence visa (permit); it’s different from your UID.

Q6. What is the residence file number on a UAE visa?
It’s the immigration file reference tied to your case and may change with sponsor/status updates.

Q7. How can I check my UID number online in the UAE?
Use GDRFA (Dubai) or ICP Smart Services (all emirates) and run a file/visa validity check with passport, nationality, and DOB.

Q8. What is the UAE unified number on a passport?
If your passport has a UAE visa, the Unified Number/UID is shown on the visa page or eVisa PDF.

Q9. Is there an “unified number inquiry service”?
Yes — GDRFA and ICP portals provide online inquiry/file-validity tools that reveal your UID.

Q10. What is the difference between a UAE visa number and a UID number?
The visa number identifies a specific residence visa; the UID is your permanent immigration identity.

Q11. Can I get a UID number without a residence visa?
Yes — tourists/visitors receive a UID when an entry permit/visa is issued.

Q12. How to get a UID number in the UAE if I can’t find it?
Retrieve it via GDRFA/ICP portals using passport details, or visit an Amer/ICP center with your documents.

Q13. What if I have two UID numbers?
Ask GDRFA/ICP to merge the duplicates so all records map to one UID.

Q14. Does the UID number expire?
No — it’s a permanent identifier and does not expire.

Q15. Where is the visa number on a UAE visa?
On the residence visa sticker/eVisa, usually labeled “Visa No.” or “Residence Permit No.”

Q16. Is the UID number printed on the Emirates ID card?
No — the card shows your Emirates ID number, not the UID.

Q17. How to check labour card online?
Log in to the official MOHRE app/portal (often via UAE Pass) and view “My Contracts/Labour Card.”

Q18. Are “UID number in Emirates ID” and “Emirates ID number” the same?
No — “UID” is immigration; the number on the card is your Emirates ID.

Q19. What is “UDB number” in the UAE context?
A system/portal code seen in some screens; it’s not your UID or Emirates ID.

Q20. What is the “Unified ID number” vs “Unified Number”?
They’re the same thing — the UID (Unified Identification Number).

Q21. Can I check my UID with only my passport number?
Usually yes — portals ask for passport details plus nationality and date of birth.

Q22. My UID is missing on the printed visa — what do I do?
Search online via GDRFA/ICP; if not found, request confirmation/correction at Amer/GDRFA/ICP.

Q23. Does each family member have their own UID?
Yes — every individual receives a unique UID.

Q24. Will changing my employer/sponsor change my UID?
No — your UID stays the same; only visa/file numbers may change.

Q25. I changed my passport number — do I need a new UID?
No — update passport details with GDRFA/ICP/MOHRE; the UID remains.

Q26. Is “unified number in passport” the same as “residence number”?
No — “unified number” is the UID; “residence number” usually refers to the visa/permit number.

Q27. What is the “UID full form”?
Unified Identification Number (often shortened to Unified Number/UID).

Q28. Can I check my UID number online in Dubai specifically?
Yes — use the GDRFA Dubai portal; for other emirates, use ICP Smart Services.

Q29. Does the UID relate to tax identification numbers?
No — UID is an immigration identifier, not a tax number.

Q30. Where to find the UID number on an eVisa PDF?
In the top information block alongside file and visa details, labeled “Unified Number/UID.”

Q31. What do searches like “unified number dubai” or “uid number dubai” mean?
They’re regional variants of the same query; the UID is federal and valid across all emirates.

Q32. Is “residence file number UAE” the same as “visa number”?
No — the file number is your immigration case reference; the visa number identifies the permit.

Q33. How to check UID number online UAE with Emirates ID only?
Log in with Emirates ID to the portal, then use file/visa validity tools — most checks still require passport details.

Q34. What if my online search shows no records?
Re-enter details carefully, try both GDRFA and ICP; if still no match, visit Amer/ICP with your passport.

Q35. Can agencies or PROs retrieve my UID?
Yes — authorized PROs (e.g., Inlex Partners) can help via official channels with your consent and documents.

Glossary of Immigration Identifiers

  • UID / Unified Number / Unified Identification Number: Permanent immigration identifier.

  • Emirates ID Number: National identity number for residents, printed on the Emirates ID card.

  • Residence Visa Number / Residence Permit Number: Identifies a specific residence visa.

  • Residence File Number: Immigration file reference associated with your case.

  • MOHRE Labour Card Number: Employment identity in the labour system (separate from immigration).

Final Thoughts + Professional Help

Your UAE Unified Number (UID) is the backbone of your immigration identity. You’ll need it when applying for Emirates ID, renewing your residence visa, changing employers, or using many public e-services. If your UID is missing, if you can’t retrieve it online, or if you suspect duplicates, resolve it early—otherwise routine applications can stall.

Need help?

Inlex & Partners assists individuals and companies across the UAE with:

  • UID lookups and corrections (including duplicate merges).

  • Residence visa applications, renewals, cancellations.

  • Emirates ID applications and updates.

  • MOHRE (labour) procedures and employer changes.

Get in touch to streamline your immigration journey.

Phone/WhatsApp: +971 52 956 8390
Email: office@inlex-partners.com

About the Author

Krystyna Sokolovska
Krystyna Sokolovska

UAE Business Setup Expert (10+ years)

Krystyna is a UAE business setup expert with 10+ years of hands-on experience helping founders and SMEs launch and grow in the Emirates. She guides clients end-to-end — choosing the right mainland or free zone structure, securing licenses and visas, opening bank accounts, and staying compliant — so they can start operating faster and with confidence.

All articles by Krystyna

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