CORAA
Internal audit programme - Tax compliance audit programme

Statutory and Tax Compliance Internal Audit Programme programme.

A statutory and tax compliance internal audit programme tests whether GST, TDS/TCS, income tax, ROC, payroll statutory, notices, consultant coordination, portal access and DSC controls are complete, timely and evidenced.

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Why this cycle matters

Compliance failures create interest, penalty, blocked credit, notices and management distraction. Internal audit should test the control system around compliance, not only whether one return was filed.

Incomplete compliance universe
Delayed GST/TDS/ROC/payroll filings
ITC, TDS or challan mismatches
Notices not tracked to closure
Portal/DSC access not controlled
Consultant dependencies not reviewed
Fieldwork programme

Audit procedures, evidence and sample basis procedures

Compliance universe and calendar

Objective: All registrations, returns and owners are mapped.

Procedure steps
  • Review compliance universe completeness.
  • Match due dates, owners and evidence requirements.
  • Test delayed or missed filings.
Evidence

Compliance calendar, registration list, return tracker, challans.

Sample basis

All applicable registrations and selected months/quarters.

GST and ITC

Objective: GST returns and ITC claims are supported.

Procedure steps
  • Compare sales/purchase registers to GST returns.
  • Review ITC reconciliation and blocked-credit checks.
  • Test notices and refund/RCM workflows where relevant.
Evidence

GSTR-1/3B/9, 2B recon, ITC register, challans, notices.

Sample basis

Selected periods plus high-value exceptions.

TDS/TCS and income tax

Objective: Withholding, payment and return controls operate.

Procedure steps
  • Review TDS/TCS rate and threshold application.
  • Match challans to returns and ledgers.
  • Trace tax-audit/income-tax data handoffs.
Evidence

TDS/TCS workings, challans, returns, Form 26AS/AIS tie-outs, tax schedules.

Sample basis

High-value sections and exception vendors/customers.

ROC, payroll statutory and portal access

Objective: Entity filings and portal authority are controlled.

Procedure steps
  • Test MCA/ROC and board-compliance evidence.
  • Review PF/ESI/PT filing evidence.
  • Inspect portal users, DSC custody and consultant access.
Evidence

MCA SRNs, board records, PF/ESI/PT returns, portal user list, DSC register.

Sample basis

All critical filings and active portal users.

Data requests

  • Compliance universe and filing calendar
  • GST returns, reconciliations, challans, notices and refund/RCM files
  • TDS/TCS workings, challans, returns, 26AS/AIS tie-outs
  • ROC SRNs, payroll statutory filings, portal users and DSC register

Analytics to run

  • Return filed after due date
  • Challan not matched to liability
  • ITC in books not in 2B
  • Notice overdue without response
  • Portal user not mapped to employee/consultant approval

Red flags

  • Compliance calendar has no owner
  • Manual return adjustments not reviewed
  • Same DSC used by multiple users
  • Consultant files return without management review
  • Repeated late fees/interest but no root-cause action
Execution workflow

Build a defensible file RCM to evidence.

Use this cycle programme after the SOW, data request list and RCM are aligned. The Excel workbook should carry sample rationale, extraction filters, preparer sign-off, reviewer sign-off and observation references.

Authority

Use current standards and entity facts sources

ICAI IASB lists the Compendium of Standards on Internal Audit as on February 2026 as applicable from 1 April 2026. Use this page as a practical workpaper starter, then verify the latest standard, law, regulation, ERP report and client fact pattern before concluding.

FAQ

Tax compliance audit programme questions answers

What should a statutory compliance audit programme cover?

It should cover the compliance universe, GST, TDS/TCS, income tax, ROC filings, payroll statutory compliance, notices, portal access, DSC custody and consultant controls.

Is this statutory and tax compliance programme a substitute for professional judgement?

No. It is a fieldwork starter. The internal auditor must tailor it to the approved scope, ERP, delegation matrix, locations, volumes, materiality, prior findings and current legal position.

Can I download a statutory and tax compliance audit programme in Excel?

Yes. Use the linked CORAA workbook for the cycle. It contains editable RCM, testing, evidence and monitoring sheets that can be used as a fieldwork base.

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