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Corporate Tax Registration in UAE: Step-by-Step EmiraTax Portal Guide 2025

Complete EmiraTax portal guide for UAE corporate tax registration. Step-by-step process, required documents, deadlines, and expert tips to avoid penalties. 37 years experience serving 28,000+ clients.

F
Farahat & Co Audit Team
Ministry-Approved Auditors
December 3, 2025
18 min read

Need to register for corporate tax in the UAE but overwhelmed by the EmiraTax portal process? With the UAE Corporate Tax Law now in full effect since June 2023, every mainland and free zone business earning above AED 375,000 annually must complete corporate tax registration through the Federal Tax Authority's EmiraTax system. Missing registration deadlines can result in penalties starting at AED 10,000making timely, accurate registration critical for Dubai businesses.

As Ministry-approved auditors with 37 years of experience serving over 28,000 UAE companies, we've guided hundreds of businesses through the corporate tax registration maze. This comprehensive guide provides everything you need to successfully navigate the EmiraTax portal, complete your registration, and obtain your Tax Registration Number (TRN) without costly errors.

Understanding Corporate Tax Registration in UAE

Corporate tax registration represents the mandatory compliance process through which UAE businesses register with the Federal Tax Authority (FTA) to obtain a Tax Registration Number (TRN) for corporate tax purposes. This registration is distinct from VAT registration and serves as your business's unique identifier in the UAE corporate tax system established under Federal Decree-Law No. 47 of 2022. For comprehensive tax consultation services, partnering with experienced advisors ensures accurate registration.

Key Components of Corporate Tax Registration

Tax Registration Number (TRN): Your unique 15-digit identifier issued by the FTA upon successful registration. This number must appear on all tax returns, correspondence with authorities, and official business documents related to corporate tax.

EmiraTax Profile: Your secure digital account within the FTA's EmiraTax system where you manage all corporate tax obligations including registration updates, return filing, payment processing, and authority communications.

Tax Period Selection: During registration, you designate your tax period (typically aligning with your financial year) which determines when your annual corporate tax returns are due.

Business Classification: You must accurately classify your business activity, legal structure, and taxable status during registrationthis classification determines your tax obligations, filing requirements, and applicable rates.

Corporate Tax Registration vs VAT Registration in UAE

Many Dubai businesses confuse corporate tax registration with VAT registration, but these are entirely separate compliance requirements:

  • Corporate Tax Registration: EmiraTax Portal (new dedicated section), AED 375,000 annual revenue threshold, 9% on profits above AED 375,000, Annual return frequency
  • VAT Registration: EmiraTax Portal (existing VAT section), AED 375,000 annual taxable supplies (mandatory), 5% on taxable supplies, Quarterly or monthly returns

Critical insight: Even if you're already VAT-registered, you must separately register for corporate tax. Your VAT TRN does not satisfy corporate tax registration requirements.

Who Must Register for Corporate Tax

Mandatory Registration Categories

All UAE Mainland Companies: Every Limited Liability Company (LLC), public joint stock company, private joint stock company, sole establishment, and branch of a foreign company operating in UAE mainland must register for corporate tax regardless of revenue level.

Free Zone Companies Above Threshold: Free zone entities generating annual revenue exceeding AED 375,000 must register. This includes Dubai South, DMCC, JAFZA, DAFZA, and all other UAE free zones.

Natural Persons Conducting Business: Individual entrepreneurs, freelancers, and professionals operating under commercial licenses who generate annual revenue above AED 1,000,000 from business activities must register.

Registration Exemptions

Certain entities are exempt from corporate tax:

  • Government entities and government-controlled entities
  • Businesses engaged exclusively in extractive industries already subject to emirate-level taxation
  • Qualifying public benefit organizations and charities
  • Qualifying investment funds meeting specific requirements

Registration Timeline and Critical Deadlines

Registration Deadlines for Existing Businesses

If your business was already established and operating when the Corporate Tax Law took effect, your registration deadline depends on your financial year-end:

  • December 31 (Calendar Year): First tax period starts January 1, 2024 – Registration deadline: May 31, 2024
  • June 30: First tax period starts July 1, 2023 – Registration deadline: November 30, 2023

Critical Rule: You must register within 3 months from the beginning of your first tax period subject to corporate tax.

Registration Deadlines for New Businesses

Mainland Companies: Must register within 3 months of incorporation, regardless of revenue level or activity commencement.

Free Zone Companies: Must register within 3 months of incorporation if you know revenue will exceed AED 375,000.

Late Registration Penalties

Failing to register by deadlines results in administrative penalties:

  • Not registered by deadline: AED 10,000
  • Intentional failure to register: Up to AED 50,000 + potential criminal prosecution

Required Documents and Information

Essential Information You'll Need

Legal Entity Information:

  • Official legal name (exactly as appears on trade license)
  • Trade license number and dates
  • Licensing authority
  • Legal form/structure
  • Date of incorporation
  • Business activities

Financial Information:

  • Financial year-end date
  • First tax period start date
  • Accounting method (accrual or cash basis)
  • Expected annual revenue

Ownership Structure:

  • Ultimate Beneficial Owner (UBO) information for all owners with 25%+ ownership
  • UBO Emirates ID or passport numbers
  • Ownership percentages

Required Supporting Documents

Mandatory for All Businesses:

  • Valid trade license (clear, color PDF scan)
  • Memorandum and Articles of Association
  • Emirates ID copies of all owners/partners
  • Passport copies of all foreign owners/partners
  • Tenancy contract or property ownership certificate (Ejari registered in Dubai)
  • Recent financial statements

Step-by-Step Registration Process

Step 1: Access EmiraTax Portal

  1. Navigate to https://emar.tax.gov.ae/
  2. Login using UAE Pass or email registration
  3. Navigate to "Corporate Tax" section
  4. Click "Register for Corporate Tax"

Step 2: Business Entity Information

Complete all sections carefully:

  • Legal entity details (exact name from trade license)
  • Business activities (primary and secondary)
  • Registered address
  • Financial year and tax period selection
  • Contact information

Step 3: Ownership and Control Information

Identify all Ultimate Beneficial Owners (UBOs):

  • Natural persons with 25%+ ownership
  • Ownership percentages must total 100%
  • Upload UBO identification documents

Step 4: Tax Registration Classification

  • Select taxpayer category (Resident Person, Non-Resident Person, etc.)
  • Indicate free zone status if applicable
  • Elect Small Business Relief if revenue <AED 3M

Step 5: Document Upload

Upload all required documentation:

  • Trade license
  • Memorandum & Articles of Association
  • Emirates ID copies
  • Passport copies
  • Tenancy contract
  • Financial statements

Step 6: Review and Submit

  1. Review comprehensive summary of all information
  2. Read declaration carefully
  3. Confirm accuracy and submit
  4. Note application reference number
  5. Receive confirmation email

Step 7: Monitor Application Status

  • FTA reviews application (5-7 business days for complete applications)
  • Check status in EmiraTax portal
  • Respond immediately to any information requests
  • Receive TRN upon approval

Post-Registration Requirements

Immediate Actions

Within 7 days of receiving TRN:

  • Update business records with TRN
  • Inform finance team and accountant
  • Configure accounting software for corporate tax tracking

Ongoing Compliance Obligations

Annual Tax Return Filing:

  • Due date: 9 months after tax period end
  • Payment deadline: Same as return filing
  • Submit audited financial statements with return

Registration Information Updates:

  • Notify FTA within 20 business days of any changes
  • Changes in ownership, address, activities, etc.

Record Keeping:

  • Maintain comprehensive records for 7 years
  • Financial records, tax calculations, correspondence

Common Registration Errors to Avoid

  1. Mismatched Entity Names: Legal name must exactly match trade license
  2. Incorrect Financial Year Selection: Choose carefullydifficult to change later
  3. Incomplete UBO Information: Ownership percentages must total 100%
  4. Wrong Business Activity Classification: Select accurate ISIC codes
  5. Poor Quality Document Uploads: Ensure clear, legible PDF scans
  6. Email Address Typos: Double-check email for FTA correspondence

Expert Tips for Smooth Registration

Strategic Timing

  • Best days: Sunday through Tuesday
  • Avoid: Thursday/Friday and last 3 days before deadline
  • Submit 4-6 weeks before deadline for processing time

Document Preparation

  • Create "Corporate Tax Registration Package" folder
  • Scan at 300 DPI minimum in color
  • Keep files under 5MB
  • Verify all documents are legible

Information Verification

  • Have second person verify all information
  • Ensure trade license names match Emirates IDs exactly
  • Confirm ownership percentages add to 100.00%

Professional Support from Audit Firms Dubai

As Ministry-approved auditors with 37 years of UAE tax and audit experience, Audit Firms Dubai (Farahat & Co) provides comprehensive corporate tax registration support:

Complete Registration Service: We handle your entire registration from information gathering through FTA approval Fast-Track Processing: Our expertise ensures complete, accurate first-time submissions Classification Optimization: We analyze your business to ensure optimal tax classification Ongoing Compliance Support: Complete corporate tax return preparation, filing, and advisory

Contact Information

Call: +971 42 500 251 Email: info@auditfirmsdubai.ae Website: https://auditfirmsdubai.ae

Conclusion

Corporate tax registration marks a critical compliance milestone for UAE businesses. With proper preparation, accurate information, and strategic timing, you can complete the EmiraTax registration process efficiently and avoid costly penalties. Don't delaystart your registration process now to ensure ample time for successful completion before your deadline.


Important Disclaimer

The information provided in this article reflects the regulatory environment as of 2026. Laws and regulations in the UAE are subject to change. This content is for general information only and does not constitute professional legal or financial advice. We recommend consulting with a qualified auditor or legal advisor for your specific situation.

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