Got a CA certificate, audited balance sheet or tax audit report? Check its UDIN here in seconds: instant format check, a cross-check against the document, one click to ICAI's official portal for the final confirmation, and a verification record for your loan file.
This page checks the UDIN's format and its consistency with the document. It cannot confirm a UDIN exists. Only ICAI's portal (udin.icai.org) can do that, so always complete Step 3.
After checking on ICAI, note the result here and download a one-page record (Word or PDF) with the UDIN, document details and check results.
UDIN (Unique Document Identification Number) is a number that a practising Chartered Accountant generates on ICAI's UDIN portal for each certificate, report or document they sign. The CA records key details of the document against it, so a bank, regulator or anyone else can later confirm the document was really issued by that CA and hasn't been altered or forged.
18 characters in all: the last two digits of the year it was generated, the CA's 6-digit ICAI membership number, and a 10-character code from ICAI's system (usually 6 letters followed by 4 digits). That's why the membership number inside the UDIN must match the one on the CA's signature and stamp.
ICAI made UDIN mandatory in phases during 2019: first for certificates (from 1 February 2019), then GST and tax audit reports (from 1 April 2019), and then all audit and assurance reports (from 1 July 2019). Documents signed by a CA after these dates should carry a UDIN. A CA must generate the UDIN within a set window after signing; check ICAI's current rules for the exact period.
Documents bankers commonly receive that need a UDIN include audited financial statements, tax audit reports, net-worth and turnover certificates, stock and book-debt certificates, end-use and fund-utilisation certificates, Form 15CB for foreign remittances, and CA-certified CMA data or projections.
A CA-signed certificate or audit report dated after 2019 without a UDIN should not be relied on until one is provided.
The 6 digits inside the UDIN differ from the membership number on the signature or stamp.
The UDIN's year is before the document's date, or long after it.
Document type, date or other particulars on ICAI's portal don't match the document in hand.
Each document gets its own UDIN. A UDIN reused on another certificate is a strong sign of forgery.
ICAI shows the UDIN as revoked, or can't find it. Ask the CA directly before accepting the document.
No. Only ICAI's UDIN portal can confirm a UDIN exists and show the details the CA recorded. This page catches typing errors and obvious fakes (wrong length, impossible year, mismatched membership number), then sends you to ICAI for the final check.
No. Every check runs inside your own browser. Nothing is sent to or saved by AskBanker.in, and the downloaded record is created on your device.
ICAI uses the OTP to confirm a real person is making the request and to keep a log of who verified which UDIN. It's part of ICAI's own process.
Re-check the date of the document you entered on ICAI's page, then ask the CA to confirm the UDIN in writing. Treat the document as unverified until ICAI shows a matching record.
See ICAI's official UDIN portal at udin.icai.org, and our Credit Appraisal Tools, CMA Data guide and Banking Formats.
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