Content authored by practitioners with experience at Amazon India, Intuit QuickBooks, and the Tata Group. Meet the team →
A CA firm running outsourced compliance for 80 enterprise clients executes 80 parallel monthly cycles on a shared statutory calendar — onboarding, pulls on the 1st, matching by the 10th, filing by the 20th — and any gap in role allocation, SA 230 evidence capture, or exception triage at scale cascades into missed TDS and GST deadlines across multiple clients.
Operate a three-role workflow — article clerk for data pulls and first-pass matching, manager for exception review, partner for sign-off — enforced by access control. Anchor the cycle to statutory dates: 1st–5th pulls, 6th–10th matching, 11th–13th exception triage, 14th–18th GSTR-3B prep, 19th–20th filing. Archive source data and audit trail for 7 years to satisfy SA 230.
Batch calendar keyed to statutory due dates, onboarding checklist template (engagement letter, GSTINs, TAN, bank list, Tally backup, COA mapping), exception classification rubric (vendor error, client error, timing, data quality), deliverable pack template (15–50 pages per client), and 7-year archival retention on source JSON/Excel.
A predictable 80-client monthly cycle closed on the 20th with all clients filed, SA 230 working papers archived per client, exception registers signed off by partners, and branded deliverables issued to each client — no missed deadlines, no ICAI documentation gaps.
A CA firm running monthly compliance for 80 enterprise clients has a workflow rhythm as predictable as the statutory calendar itself. Every 1st, every 10th, every 20th. The CA firm client reconciliation workflow runs in parallel across all clients — not sequentially — because the deadlines are shared. This guide covers the full workflow from onboarding a new client through the repeating monthly cycle, exception review, and client deliverables.
What the CA Firm Client Reconciliation Workflow Is
The CA firm client reconciliation workflow is the end-to-end process by which the firm takes client raw data — bank statements, purchase invoices, Tally exports — and produces reconciled, filing-ready statutory outputs. Unlike an internal finance team’s workflow, the firm’s workflow is multi-tenant by design: 50 to 500 clients run through the same cycle simultaneously, each with isolated data and its own sign-off chain.
Three roles typically share the workflow. Article clerks execute the data pulls, matching, and first-pass exception triage. Managers review exceptions and sign off on clean reconciliations. Partners sign the final client deliverable and handle any escalated queries. The workflow software enforces role separation through access controls.
The Monthly Cycle: Step by Step
Days 1 to 5 — Data Acquisition
On the 1st, GSTR-2B for the prior month becomes available. The tool pulls GSTR-2B JSON per client GSTIN in batch. Simultaneously, article clerks collect client bank statements (MT940, CSV, or PDF per bank), Tally backups, and purchase registers. Form 26AS for TDS reconciliation is pulled from the Income Tax portal. For 80 clients with 200 GSTINs and 150 bank accounts, this is 430 distinct pulls — manageable only if automated.
Days 6 to 10 — Matching and Variance Identification
The tool matches each dataset against the corresponding client ledger. GSTR-2B against purchase register. Form 26AS against TDS receivable. Bank statement against book of accounts. Variances are classified automatically into buckets: vendor error, client error, timing difference, data quality. Typical match rates fall in the 85 to 95% band after the first pass, with 5 to 15% of transactions routing to exception review.
Days 11 to 13 — Exception Review with Client
The article clerk drafts resolution notes for each exception. The manager reviews. The firm then raises queries with the client — usually 5 to 25 queries per mid-size client per month. Clients respond with corrections, additional documents, or acknowledgements. The exception register is updated and routed back for re-reconciliation.
Days 14 to 20 — Filing and Deliverables
With exceptions resolved, GSTR-3B is pre-filled from the reconciled ITC figure and filed on or before the 20th. TDS returns, GSTR-1, and other statutory filings follow their respective deadlines. The firm’s monthly deliverable pack — branded under the firm’s letterhead — goes to the client within 2 to 3 days of filing.
Role Allocation by Clerk Load
| Role | Typical client load | Primary tasks | Sign-off authority |
|---|---|---|---|
| Article clerk | 15 to 30 clients | Data pulls, matching, first-pass exceptions | None |
| Assistant manager | 40 to 60 clients | Exception review, client query drafting | Clean reconciliations |
| Manager | 80 to 120 clients | Variance escalations, GSTR-3B review | Complex reconciliations |
| Partner | Full book (80+) | Final sign-off, client escalations | Final deliverable |
India-Specific Workflow Considerations
The 1st to 20th monthly cycle aligns exactly with India’s GST calendar: GSTR-2B on the 14th (now earlier from 2024), GSTR-3B on the 20th, TDS return filing by the 7th of the following month. A CA firm’s workflow is not configurable to a different cadence — it is locked to the Income Tax and GST calendars. Firms servicing enterprise clients with outsourced GST compliance must maintain this rhythm without exception, since missed deadlines translate directly into client penalties and firm reputational cost.
The ICAI’s SA 230 (Audit Documentation) and SA 500 (Audit Evidence) requirements apply to every reconciliation the firm signs off. Source data, matched output, exception register with resolution notes, and partner sign-off must be archived for 7 years. Firms using reconciliation software India designed for multi-client practice get this audit trail automatically — every action is timestamped and attributed to a user.
For enterprise clients that hold 3 to 8 GSTINs and multiple TDS section exposures, the workflow complexity multiplies. A GST reconciliation software that can parallelise GSTIN-level reconciliation within a single client workspace is essential above 200 client GSTINs in the firm’s book.
The ICAI Standards on Auditing define the documentation and evidence requirements that govern how the CA firm’s workflow output must be structured.
Frequently asked questions about CA firm client reconciliation workflow in India are answered below.