GST Audit: Documents You Should Keep Ready
A departmental GST audit gives you very little time. Form ADT-01 lands with a minimum of fifteen working days’ notice, and the officer then expects several years of records, cross-tallied and explainable, almost immediately. Businesses that have to assemble everything after the notice arrives spend those two weeks in panic — and gaps discovered in a rush become demands.
The businesses that come through an audit cleanly are simply the ones whose files were already in order. This checklist sets out exactly what to keep ready and why each item is asked for.
Departmental audit activity has picked up sharply across Delhi NCR as earlier years are taken up for scrutiny, and demand for organised GST audit services in Delhi NCR has risen with it. Whether you handle the audit internally or with help, the document set below is the same.
The Three Audits You Might Face
Section 65 — departmental audit. Conducted by the tax authorities at your premises or their office. Notice comes in ADT-01 at least fifteen working days in advance. The audit must be completed within three months of commencement, extendable by the Commissioner by up to six more. Findings are communicated in ADT-02 within thirty days.
Section 66 — special audit. Where an officer believes value has been misdeclared or credit availed is beyond normal limits, the Commissioner can direct an audit by a nominated chartered accountant or cost accountant, via ADT-03, with the report in ADT-04. The government bears the professional’s fee.
Annual self-certification. GSTR-9 is the annual return, generally optional for turnover below ₹ 2 crore. GSTR-9C, the self-certified reconciliation statement, applies where aggregate annual turnover exceeds ₹5 crore. Self-certification does not reduce scrutiny — it shifts responsibility onto you.
In Delhi NCR, an audit may originate with the Central GST Commissionerate or the State authority depending on how your GSTIN is assigned, so the first thing to check on any notice is who issued it.
The Document Checklist
Registration and statutory records
GST registration certificate and all amendments, details of every additional place of business, LUT for exporters, and authorisations for signatories.
Returns filed
GSTR-1, GSTR-3B, GSTR-9 and GSTR-9C for each year under audit, plus ITC-04 for job work and GSTR-6 or GSTR-7 where applicable.
Financial records
Audited financial statements, trial balance, profit and loss account, balance sheet, income tax return and tax audit report in Form 3CD. Officers routinely compare GST turnover against these.
Outward supply documents
Tax invoices, bills of supply, export invoices, shipping bills, FIRC or BRC for export proceeds, credit and debit notes, delivery challans, e-invoices with IRN, and e-way bills.
Inward supply and ITC records
Purchase invoices, bills of entry for imports, reverse charge payment records with self-invoices, ISD invoices, and the working for credit claimed.
ITC eligibility working
Your Section 17(5) blocked credit schedule, Rules 42 and 43 apportionment working, the 180-day payment tracker, and Rule 37A reversal records.
Stock and job work
Stock registers showing opening balance, receipts, supplies and losses, plus job work challans and ITC-04 filings.
Ledgers and payments
Electronic cash, credit and liability ledgers, DRC-03 payment challans, and bank statements.
Contracts and positions
Agreements with major customers and vendors, rate and HSN classification working, cross-charge documentation between distinct persons, and related party transaction records.
Prior correspondence
Earlier notices, ASMT-10 replies, DRC-01B and DRC-01C responses, previous audit reports, and any orders passed.
The Five Reconciliations Officers Always Ask For
Have these prepared before the audit, not during it:
- GSTR-1 versus GSTR-3B — outward supplies declared against tax paid.
- GSTR-2B versus ITC claimed in GSTR-3B — the single most common source of demands.
- GST turnover versus audited financials — differences must be explained, not just noted.
- GSTR-9 versus books — the annual tie-out.
- E-way bills versus invoices — movement against declared supply.
Each difference should carry a written explanation with supporting documents attached. An unexplained difference is treated as a shortfall.
How Long You Must Keep Records
Records must be retained for at least 72 months from the due date of furnishing the annual return for the relevant year. Where an appeal, revision, or investigation is pending, retention continues until one year after final disposal or the 72-month period, whichever is later.
Electronic records must be backed up and reproducible. Given that departmental audits for earlier years are still being taken up, retention is not academic.
The Gaps That Turn a Routine Audit Into a Demand
Most audit demands come from a short list of recurring failures: ITC claimed but not appearing in GSTR-2B; blocked credits under Section 17(5) taken by oversight, usually on employee expenses; reverse charge liability not discharged on legal fees, transport or imported services; turnover in the financials exceeding turnover in the returns; stock differences with no reconciliation; and export documentation incomplete where a refund was claimed.
None of these is difficult to fix in advance. All of them are expensive once an officer finds them first.
This is the reasoning behind a pre-audit review. Running the same checks the department will run before ADT-01 arrives converts an unknown exposure into a known one — and gives you the option to correct voluntarily through DRC-03 at a far lower cost than a confirmed demand with interest and penalties.
Get Audit-Ready With GST Compliance Experts
Our GST audit services in Delhi NCR cover businesses across Delhi, Gurugram, Noida, Faridabad, and Ghaziabad, and we handle the process end to end:
- Pre-audit health check and gap analysis before any notice arrives
- Complete document compilation and indexing in the format officers expect
- All five reconciliations were prepared with written explanations for every difference
- Drafting replies to ADT-01 and representing you through the audit
- Response to ADT-02 findings and, where required, the show cause notice that follows
- Voluntary correction through DRC-03, which reduces exposure
If you have received an ADT-01, the reply window is already running. Call +91-9667793597, email info@gstcomplianceexperts.in, or reach us on WhatsApp today.
Frequently Asked Questions
- How much notice does the department give before a GST audit? Form ADT-01 must be issued at least fifteen working days before the audit begins.
- How long can a departmental audit take? Three months from commencement, which the Commissioner may extend by up to six further months.
- Who conducts a special audit under Section 66? A chartered accountant or cost accountant nominated by the Commissioner, with the fee borne by the government.
- Is GSTR-9C still certified by a chartered accountant? No. It is a self-certified reconciliation statement, which places the responsibility for accuracy on the taxpayer.
- What if records for an earlier year are missing? Reconstruct what you can from bank statements, portal data, and vendor copies, and disclose the position rather than leaving a gap unexplained.
- Can we correct errors found during the audit? Yes. Voluntary payment through DRC-03 before adjudication often reduces penalty exposure significantly.
- Which locations do your GST audit services in Delhi NCR cover? We support businesses across Delhi, Gurugram, Noida, Faridabad and Ghaziabad, and handle audits initiated by both Central and State GST authorities. Records can be reviewed remotely, with attendance at the audit in person where required.
