Turia
Now Live in Turia

UDIN Tracking for CA Firms

Every UDIN your firm issues, in one searchable register, tied to the client, the task it was issued for, and the invoice that follows.

Last reviewed 5 October 2026 · Verify current UDIN rules on the ICAI portal

The key question: if a bank called this afternoon to confirm a net worth certificate your firm signed seven months ago, how long would it take to find the UDIN?

For most firms, the answer is "longer than it should." The UDIN was generated on the ICAI portal, typed onto the certificate, and the signed PDF was emailed to the client. After that, the number lives in that PDF, in a sent-mail folder, and perhaps in a partner's personal spreadsheet. Nobody is being careless. There's simply no single place in the firm where every UDIN goes.

UDIN tracking for CA firms means having that place. Think of it like a cheque book's counterfoils. You'd never hand out cheques without keeping the counterfoil, because the counterfoil is how you know later what you signed, for whom and for how much. A UDIN register is the firm's counterfoil for every document a member certifies.

A Real-Life Scenario: Iyer & Co, Coimbatore

Iyer & Co is an illustrative two-partner firm in Coimbatore with around 350 clients. Its audit work is steady, but most of its UDINs don't come from audits. They come from certificates: net worth certificates for visa and loan applications, turnover certificates for tenders, Form 15CB for foreign remittances, and assorted certificates banks ask for at short notice. In a busy year, the firm generates several hundred UDINs.

Three things happened in one quarter.

  • The bank call. A bank manager emailed to verify a net worth certificate issued in November. CA Lakshmi Iyer spent 40 minutes searching sent emails before finding the PDF, and with it, the UDIN.
  • The review request. During a quality review, the firm was asked for a list of certificates signed by each partner during the year. Building that list from PDFs and email took an articled assistant the best part of two days.
  • The unbilled work. When the partners finally compiled the list, they found 18 certificates from the quarter that had never been invoiced. They were small jobs, ₹2,000 to ₹5,000 each, done in a rush for regular clients, and they added up to roughly ₹60,000 of work the firm had signed for but not billed.

None of these is unusual. Each one is what happens when the UDIN is treated as the end of the job rather than a record that connects the job to the client and the bill.

ONE QUARTER AT IYER & CO, WITHOUT A UDIN REGISTER

!40 minutes to find one UDIN for a bank verification
!2 days to build a member-wise certificate list for a review
!18 certificates, about ₹60,000 signed but never invoiced

The Surprise: Most UDIN Risk Is in Small Certificates, Not Audits

Firms tend to think of UDIN as an audit formality. Audits are planned, documented and billed, so their UDINs rarely go missing. The real exposure sits in the high-volume, low-fee certificates: the net worth certificate a client needs by tomorrow, the turnover certificate for a tender, the 15CB for a remittance. They're done quickly, often by whichever partner is free, and they're exactly the ones that slip out of the billing cycle and out of the firm's records.

How the Same Quarter Looks With Turia

With UDIN tracking in Turia, every certificate starts as a task against the client, like any other assignment. When the partner signs and generates the UDIN on the ICAI portal, the UDIN is recorded on that task. That one habit changes all three problems:

  • Verification calls take seconds. The bank asks about a certificate; someone searches the firm's UDIN register and has the client, the document and the date immediately.
  • Review lists come from a report. Every UDIN the firm has recorded can be searched and reported on across clients and members, instead of being rebuilt from email.
  • Certificates reach the invoice. Because the UDIN sits on a task, and tasks flow through to billing in Turia, a certificate that has a UDIN is a certificate that shows up when the firm raises its invoices.

For Iyer & Co, the ₹60,000 of unbilled certificates in a single quarter is the number that matters most. Recovering even part of that each quarter pays for the firm's practice management software several times over.

The Basics

What Is UDIN?

UDIN stands for Unique Document Identification Number. It is an 18-digit, system-generated number required for every document, certificate or audit report certified or attested by a practising professional, such as a Chartered Accountant, in India.

The member generates the UDIN on ICAI's UDIN portal and quotes it on the signed document. Anyone relying on that document, whether a bank, a regulator or a government department, can then check on the same portal that it's genuine.

2

characters

Year

Last two digits of the year the UDIN is generated

6

characters

Membership number

The ICAI membership number of the signing member

10

characters

System code

A system-generated alphanumeric code unique to the document

How the 18 characters of a UDIN are made up.

Why It Exists

The Purpose of UDIN

Prevents forgery

Stops non-professionals from faking a CA's signature or credentials and passing themselves off as qualified accountants.

Ensures authenticity

Banks, regulators and authorities can check on the official portal, in seconds, whether a document is genuine.

Tracks compliance

Helps the professional institute monitor how many certificates each practitioner issues, so they stay within prescribed limits.

The Real Problem

Generating a UDIN Is Easy. Finding It Later Isn't.

In most firms, the UDIN is generated on the ICAI portal, typed onto the certificate, and then lives only inside that signed PDF, an email thread, or a partner's personal spreadsheet. Months later, a bank asks to confirm a net-worth certificate, or a reviewer wants every UDIN issued for a client in the year, and someone has to go digging.

There's a quieter cost too. A certificate gets issued as a favour or in a rush, the UDIN is generated, and the work never makes it onto an invoice. When UDINs aren't connected to the work and the billing, that leakage is invisible.

How It Works

How Turia Tracks UDIN for Your Firm

UDIN tracking in Turia isn't a separate spreadsheet. It sits on the same client and task your team already works on.

01

Work is done as a task

The audit, certificate or attestation is tracked as a task against the client, like any other assignment.

02

UDIN is recorded

Once the UDIN is generated on the ICAI portal, it's recorded in Turia against that client and task.

03

It joins the firm register

Every UDIN the firm has issued sits in one searchable register, with reports across clients and members.

04

Billing stays connected

Because the UDIN is tied to the task, the certified work flows through to the invoice instead of slipping through unbilled.

Search and reports

Find any UDIN the firm has issued and pull reports across clients and members, without opening a single PDF.

Connected to tasks

Each UDIN lives on the task for the audit, certificate or attestation, so you always know which piece of work it certifies.

Connected to billing

Certified work flows from the task to the invoice, so every certificate the firm signs is also a certificate the firm bills.

Before and After

Why Centralized UDIN Tracking Matters

CapabilityPDFs and SpreadsheetsTuriaTuria
Finding a UDINSearch old emails, signed PDFs or a partner's personal sheetSearch the firm's UDIN register in one place
Link to the workNo connection between the UDIN and the assignmentEvery UDIN is tied to the client and the task it came from
BillingCertificates issued but not always invoicedCertified work sits on a task that flows through to billing
Member-wise countCounted by hand when someone asksReports across members and clients from the register
Partner visibilityEach partner keeps their own recordOne view of every UDIN issued by the firm

What a Good UDIN Register Should Hold

Whatever system a firm uses, a UDIN register is only useful if every entry answers the questions that come up later: which client the document was for, what kind of document it was, which member signed it, when it was issued, and which piece of work it belongs to. In Turia, the client and the task carry most of that context automatically, because the UDIN is recorded on work that already exists.

It also helps to treat the register as part of the firm's quality controls, not a side list. ICAI's quality review process expects firms to be able to show how their engagements are documented and controlled, and a complete, searchable UDIN record is one of the simplest ways to show that for certification work.

Easy Rules to Remember

Safe: record every UDIN in one firm-wide register on the day it's generated, against the client and the task.

Risky: leaving UDINs only inside signed PDFs and emails. They're there, but nobody can find or count them when it matters.

Safer still: make "create the task first" the rule for every certificate, even the urgent ones, so the UDIN, the work and the invoice always stay together.

Where This Connects

UDIN tracking sits on Turia's task management and client management, alongside compliance management. If certificates are part of a group's work, client grouping lets you bill the holding company for all of it. Read what CA firms say about Turia, or see Turia's pricing.

100s of CA firms use Turia Practice every day

Turia client CA firm logo
Turia client CA firm logo
Turia client CA firm logo
Turia client CA firm logo
Turia client CA firm logo
Turia client CA firm logo
Turia client CA firm logo
Turia client CA firm logo
Turia client CA firm logo
Turia client CA firm logo
Turia client CA firm logo
Turia client CA firm logo

Frequently Asked Questions

What is UDIN?

UDIN stands for Unique Document Identification Number. It is an 18-digit, system-generated number required for every document, certificate or audit report certified or attested by a practising Chartered Accountant in India.

Where is a UDIN generated?

A UDIN is generated by the signing member on ICAI's official UDIN portal. Turia does not generate UDINs; it records and tracks the UDINs your firm has generated, against the right client and task.

How can someone verify a UDIN?

Banks, regulators and other authorities can verify a UDIN on ICAI's UDIN portal, which confirms whether the document was genuinely certified by the member it claims to come from.

Why does a CA firm need centralized UDIN tracking?

Without a central register, UDINs live in signed PDFs, email threads and individual partners' spreadsheets. When a bank, client or reviewer asks for one, someone has to dig for it. A central register, tied to the client and task, makes every UDIN searchable and keeps member-wise counts visible to the firm.

How does UDIN tracking connect to billing in Turia?

Each UDIN is recorded against the task the certificate or report was issued for. Because tasks flow through to invoicing in Turia, certified work stays connected to billing instead of being issued and forgotten.

Can I search past UDINs and pull reports?

Yes. Every UDIN recorded in Turia sits in one firm-wide register that can be searched and reported on, across clients and members.

Is UDIN tracking available on every Turia plan?

See Turia's pricing for current plans and what each includes.

Every UDIN, One Register

Record each UDIN against the client and the task, search the firm's full register, and keep certified work connected to billing.

Request a DemoCall Us