UDIN Registration Online – Generate and Verify Your UDIN Easily
Ensure the authenticity of your CA-certified documents. We help you with hassle-free UDIN registration, generation, and verification.
Basic UDIN Certificate Package
Starts at just ₹4,999/-
UDIN Certificate Request Form
What is UDIN?
The Unique Document Identification Number (UDIN) is a unique number generated by Chartered Accountants (CAs) to validate the authenticity of documents they certify.
It helps prevent document misuse and ensures transparency in financial and legal verification.
In these 18 digits, the
- First 2 digits are YY - The last 2 digits of the current year. For instance, 96 from the year 1996.
- Next 6 digits are MMMMMM - The membership number of ICAI.
- Next 10 Digits are AANNNAANNN – Alpha-numeric system-generated code.
Who Needs UDIN?
UDIN is mandatory for all practicing CAs while certifying documents like:
- Audit Reports
- GST, Income Tax & Financial Statements
- Company Incorporation Certificates
- Loan or Net Worth Certificates
- Any other CA-attested document
Why UDIN is Important
- Prevents misuse of CA certification
- Ensures document authenticity
- Easy online verification by authorities
- Builds client trust and credibility
UDIN Registration Online Process
Visit udin.icai.org and log in with your ICAI membership credentials.
Provide key information like date, document type, and client details.
System generates a unique 18-digit UDIN instantly.
Mention the generated UDIN on the document before sharing it.
UDIN Registration Online – DSC Requirement
To complete your UDIN Registration Online, a valid Digital Signature Certificate (DSC) is required for authentication. The DSC ensures the security and authenticity of your documents while verifying your identity digitally. Without a registered DSC, professionals cannot generate or validate UDINs on the official portal.
Our UDIN Services
UDIN Registration Help
Assistance in creating an account and generating UDIN for the first time.
UDIN Verification Support
We verify and cross-check your UDIN for compliance.
Lost UDIN Recovery Help
Assistance to retrieve or regenerate lost UDINs.
Compliance Guidance
Full guidance on UDIN regulations and ICAI norms.
Frequently asked questions
Is UDIN mandatory for all CA documents?
Yes, UDIN is compulsory for all attest functions by practicing CAs.
Can I generate UDIN for old documents?
Yes, but it must be generated within 15 days from the date of signing the document.
How can I verify a UDIN?
What if I forget to mention UDIN?
The document may not be considered valid by authorities.
Need help with UDIN registration Online or verification?
Our experts at My Legal Tax are here to guide you every step of the way.