What gives Standards on Auditing the force of law in India?

Section 143(10) of the Companies Act 2013 expressly states that every auditor shall comply with the auditing standards. The auditing standards are those notified by the Central Government in consultation with NFRA, and the notification incorporates the Standards on Auditing issued by the Auditing and Assurance Standards Board (AASB) of ICAI. Failure to comply can result in NFRA monetary penalties under Section 132 (up to 10 times audit fees and 10-year debarment), ICAI disciplinary action under the Chartered Accountants Act 1949, and qualification of audit opinions being challenged.

When is SA 701 (Key Audit Matters) mandatory?

SA 701 is mandatory for audit reports of all listed companies on Indian stock exchanges (BSE, NSE, MSEI) and certain other entities. Key Audit Matters are matters that, in the auditor professional judgement, were of most significance in the audit of the current period financial statements - typically revenue recognition, valuation of significant estimates, going concern, business combinations, impairment testing. Each KAM is described with why it was a KAM and how the audit addressed it. NFRA and SEBI pay close attention to KAM quality in listed company audit reports.

What is the role of NFRA in Standards on Auditing compliance?

The National Financial Reporting Authority (NFRA), constituted under Section 132 of the Companies Act 2013, oversees auditors of Public Interest Entities (PIEs) - listed companies, banks, NBFCs above thresholds, insurance companies, and large unlisted companies. NFRA conducts financial reporting quality reviews of audited financial statements and the underlying audit working papers. SA compliance is a key focus area - particularly SA 230 documentation, SA 315 (Revised) risk assessment, SA 540 fair value estimates, SA 600 component auditor work, and SA 701 KAM drafting. NFRA can impose penalties up to 10 times audit fees plus 10-year debarment.

How is SA 600 applied to consolidated audits?

SA 600 Using the Work of Another Auditor (Component Auditor) governs principal auditor reliance on the work of auditors of components - subsidiaries, JVs, branches, associates - in a consolidated financial statement audit. Principal auditor must assess component auditor professional competence and independence; communicate clearly the scope and timing of work; review the component auditor working papers for material components; document the reliance basis. For MNCs with foreign component auditors, the procedures include accounting framework differences and language coordination.

What is SQC 1 and which audit firms must comply?

SQC 1 Standard on Quality Control 1 is the firm-level quality control standard issued by ICAI. It requires every audit firm in India to establish and maintain a system of quality control covering 6 elements - leadership responsibilities; relevant ethical requirements (independence); acceptance and continuance of client relationships; human resources; engagement performance; monitoring. SQC 1 compliance is mandatory for all CA firms in practice regardless of size; Peer Review verifies SQC 1 implementation.

What is ICAI Peer Review and when is it required?

ICAI Peer Review is conducted under the Peer Review Board framework - mandatory for audit firms auditing listed companies and other Public Interest Entities. Peer Review covers the firm SQC 1 quality control system and a sample of audit engagements. A Peer Reviewer (an experienced CA from another firm) examines working papers, interviews partners and staff, and issues a Peer Review Certificate which is required for the audit firm to continue auditing PIEs. Patron Peer Review preparation service helps audit firms close gaps before submission.

Do SAs apply to tax audit under Section 44AB?

Yes. Although Section 44AB of the Income Tax Act 1961 is the legal authority for tax audit (turnover Rs 1 crore or Rs 10 crore digital, or professional Rs 50 lakh), the audit itself is conducted by a Chartered Accountant in practice who is bound by the SAs. Form 3CA (where statutory audit is conducted) or Form 3CB (where no statutory audit is required), accompanied by Form 3CD, must be issued under the SA framework. UDIN through the ICAI portal is mandatory for tax audit reports too.

How are SAs different from Standards on Internal Audit (SIAs)?

SAs are issued by ICAI Auditing and Assurance Standards Board for external (statutory and tax) audit. SIAs are issued separately by ICAI Internal Audit Standards Board (IASB) and apply to internal audit conducted under Section 138 of the Companies Act 2013. SIAs include SIA 110 Nature of Assurance, SIA 240 Using Work of Another Internal Auditor, SIA 350 Review and Supervision. The two frameworks are complementary - SAs for external assurance, SIAs for internal assurance. Some entities use external CA firms to conduct internal audit, which would apply SIAs not SAs.

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Standards on Auditing (SAs): ICAI Framework Explained

Reviewed by CA and CS Team, Patron Accounting LLP ICAI & ICSI Registered| 15+ Years Experience| Last Updated: Verify Credentials →

Documents: Audit engagement letter (SA 210), planning memo (SA 300), working paper file (SA 230), MRL (SA 580), Audit Report (SA 700 Revised), KAM (SA 701)

Fees: Peer Review preparation Rs 25,000 to Rs 1 lakh; SA gap assessment Rs 1 lakh to Rs 10 lakh; NFRA inspection response Rs 1 lakh to Rs 50 lakh; SQC 1 Rs 50,000 to Rs 5 lakh

Eligibility: Mandatory for every audit by a Chartered Accountant in practice; Section 143(10) Companies Act 2013; ICAI Council notification gives binding authority

Timeline: SA gap assessment 2 to 4 weeks; NFRA inspection response 4 to 12 weeks; SQC 1 firm implementation 4 to 8 weeks; Peer Review prep 4 to 6 weeks

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Real Stories from Real People

Hear how teams across industries use Patron to save time, cut costs, & stay in control.

“

After our audit firm faced an NFRA query on SA 540 and SA 600 compliance, Patron team did a working paper remediation across 4 group audits in 12 weeks. Each SA paragraph gap was closed with new procedures, supplemental working papers, and revised technical memos.

Engagement Partner

Mid-tier Audit Firm

★★★★★

2 months ago

“

Patron 4-week independent SA gap assessment of our continuing statutory auditor identified 3 critical gaps and 6 significant ones. Used the findings to require working paper supplements before signing the next year ADT-1. Audit firm subsequently strengthened SA 315 procedures.

Audit Committee Chair

Listed Mid-Cap Company, Mumbai

★★★★★

3 months ago

“

Patron SQC 1 implementation took us 6 weeks - client acceptance procedures, engagement performance manuals, and monitoring system fully documented. Cleared our Peer Review without findings in the next cycle.

Managing Partner

CA Firm, Pune

★★★★★

1 month ago

“

Our consolidated audit involves 11 component auditors across 4 countries. Patron SA 600 review identified gaps in the principal auditor coordination - communication protocols, working paper review depth, and group reporting alignment. Improved audit quality and reduced NFRA risk exposure.

Group CFO

Manufacturing Conglomerate, Gurugram

★★★★★

4 months ago

“

Patron SA gap review on a Rs 1,200 crore acquisition target identified prior year audit quality concerns - templated SA 315 risk assessment and boilerplate SA 701 KAMs. Informed our purchase price adjustment and rep-and-warranty insurance scope.

Partner

PE Fund M&A Diligence Team, Delhi

★★★★★

5 months ago

“

Patron audit firm staff training programme on SA 315 Revised and SA 540 was case-study-based using current NFRA observations. 18 of our staff went through the half-week programme. Tangible improvement in working paper quality on the next audit cycle.

Audit Firm Senior Partner

Practice in Bangalore

★★★★★

6 months ago

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SA gap assessment, NFRA inspection response, SQC 1 implementation, Peer Review preparation, and audit firm staff training - delivered with senior partner CA involvement on every engagement and a starting fee of Rs 25,000.

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Overview What Are SAs SA Framework Our Services Procedure Documents NFRA Issues Fees Timelines Benefits Big 4 vs Patron FAQs

Standards on Auditing in India: A Snapshot

📌 TL;DR - Standards on Auditing Services at a Glance

Standards on Auditing (SAs) are mandatory procedural standards issued by the Auditing and Assurance Standards Board of ICAI, given legal force under Section 143(10) of the Companies Act 2013. Currently 39+ SAs covering audit objectives, engagement acceptance, planning, risk assessment, audit evidence, audit conclusions, and reporting. Listed companies face additional SA 701 (Key Audit Matters), and quarterly limited reviews under SRE 2410. Audit firms must implement SQC 1 for firm-level quality control and undergo ICAI Peer Review for engagements involving PIEs.

Quick-Reference Summary Table

Parameter	Detail
Issuing Authority	Auditing and Assurance Standards Board (AASB) of ICAI under Council notification
Legal Authority	Section 143(10) Companies Act 2013 - every auditor shall comply with the auditing standards
Standards Count	39+ SAs across 7 categories - general principles, planning, evidence, using work of others, conclusions and reporting, specialised engagements, related services
Quality Control	SQC 1 (firm-level quality control standard) issued by ICAI Council
Listed Company Special	SA 701 mandatory Key Audit Matters; SRE 2410 quarterly limited review under SEBI LODR Reg 33
Peer Review	ICAI Peer Review Board - mandatory for firms auditing listed companies and other PIEs
Regulator Oversight	NFRA (HQ Delhi) for PIE audits; ICAI Quality Review Board for non-PIE audits
Penalty for Non-compliance	ICAI disciplinary action under CA Act 1949; NFRA penalties under Section 132 + NFRA Rules 2018 (up to 10x of fees + 10-year debarment)

Standards on Auditing are not optional best practice - they are mandatory under Section 143(10) of the Companies Act 2013, which states that every auditor shall comply with the auditing standards.

Failure to follow SAs can result in qualified or adverse opinions being challenged, NFRA financial reporting quality review findings, ICAI disciplinary action, audit firm Peer Review failure, and where the audit relates to listed companies or banks, SEBI or RBI sanctions. SAs are the foundation of audit quality - they define what an audit must achieve (SA 200), how to plan it (SA 300), what evidence to gather (SA 500), and how to report findings (SA 700 Revised). Patron services start at Rs 25,000 for small firm Peer Review preparation.

Content is reviewed quarterly for accuracy.

What Are Standards on Auditing?

Standards on Auditing (SAs) are written procedural standards prescribed by the Auditing and Assurance Standards Board of the Institute of Chartered Accountants of India and approved by the ICAI Council. They define the minimum professional and technical requirements that a Chartered Accountant in practice must follow when conducting an audit of financial statements.

SAs cover the entire audit lifecycle - from acceptance of engagement (SA 210) through audit planning (SA 300), risk assessment (SA 315 Revised), gathering audit evidence (SA 500), using the work of other auditors (SA 600) and experts (SA 620), to forming an opinion (SA 700 Revised) and reporting Key Audit Matters (SA 701).

Indian SAs are converged with the International Standards on Auditing (ISAs) issued by the IAASB - the international counterpart. Convergence means Indian SAs are substantially the same as ISAs with limited modifications for the Indian context. The legal force comes from Section 143(10) of the Companies Act 2013 which mandates compliance for company audits, and from Section 44AB of the Income Tax Act 1961 which requires tax audits to follow SAs. Source: ICAI.

Key Terms for Standards on Auditing:

AASB: The Auditing and Assurance Standards Board of ICAI - the technical board that drafts Standards on Auditing for approval by the ICAI Council and notification by MCA under Section 143(10).

Section 143(10) Companies Act 2013: Statutory provision making compliance with auditing standards mandatory - every auditor shall comply with the auditing standards notified by the Central Government in consultation with NFRA.

SQC 1 (Standard on Quality Control 1): Firm-level quality control standard covering 6 elements - leadership, ethical requirements, client acceptance and continuance, human resources, engagement performance, and monitoring. Mandatory for every CA firm in practice.

SA 701 Key Audit Matters (KAM): Mandatory reporting in audit reports of all listed companies of matters that, in the auditor judgement, were of most significance in the audit - typically revenue recognition, valuation of significant estimates, going concern, business combinations, impairment testing.

NFRA (National Financial Reporting Authority): Independent regulator under Section 132 Companies Act 2013 - oversees auditors of Public Interest Entities; conducts financial reporting quality reviews; can impose penalties up to 10 times audit fees plus 10-year debarment.

ICAI Peer Review: Periodic working paper review of audit firms by an experienced CA Peer Reviewer - mandatory for firms auditing listed companies and other PIEs; cycle of 3-5 years depending on firm category.

Statutory Authority Section 143(10) + ICAI AASB + NFRA

SA Framework: 7 Category Hierarchy

Standards on Auditing are organised in 7 numbered categories, each covering a distinct phase or aspect of the audit. The structure is identical to the international ISA numbering convention adopted by IAASB. This hierarchical structure helps auditors navigate the framework systematically through the audit cycle.

Number Range	Category	Coverage
SA 100 to 199	Introductory Matters	General introductory material (currently no standalone SA in this range; principles embedded in SA 200)
SA 200 to 299	General Principles and Responsibilities	Overall objectives (SA 200), engagement terms (SA 210), quality control (SA 220), documentation (SA 230), fraud (SA 240), laws and regulations (SA 250), governance communication (SA 260), internal control deficiencies (SA 265), joint audit (SA 299)
SA 300 to 499	Risk Assessment and Response	Audit planning (SA 300), risk identification and assessment (SA 315 Revised), materiality (SA 320), responses to assessed risks (SA 330), service organisation considerations (SA 402), evaluation of misstatements (SA 450)
SA 500 to 599	Audit Evidence	Audit evidence (SA 500), specific items (SA 501), external confirmations (SA 505), opening balances (SA 510), analytical procedures (SA 520), audit sampling (SA 530), accounting estimates (SA 540), related parties (SA 550), subsequent events (SA 560), going concern (SA 570), written representations (SA 580)
SA 600 to 699	Using Work of Others	Component auditors (SA 600), internal auditors (SA 610), auditor experts (SA 620)
SA 700 to 799	Audit Conclusions and Reporting	Forming opinion and reporting (SA 700 Revised), Key Audit Matters (SA 701), modifications to opinion (SA 705 Revised), Emphasis of Matter (SA 706 Revised), comparative information (SA 710), Other Information (SA 720 Revised)
SA 800 to 899	Specialised Engagements	Special purpose frameworks (SA 800), single financial statement or element (SA 805), summary financial statements (SA 810)

Adjacent Standards Beyond SAs

SQC 1 (Standard on Quality Control 1): Firm-level quality control - mandatory for all audit firms
SRE (Standards on Review Engagements): SRE 2400 review of historical financial statements; SRE 2410 review of interim financial information (SEBI LODR Reg 33 quarterly limited review)
SAE (Standards on Assurance Engagements): SAE 3400 prospective financial information; SAE 3402 controls at service organisation; SAE 3410 greenhouse gas statements
SRS (Standards on Related Services): SRS 4400 agreed-upon procedures; SRS 4410 compilation engagements

Most Consequential SAs

SA 200 sets overarching objectives - reasonable assurance and professional scepticism. SA 230 mandates audit documentation enabling an experienced auditor to understand procedures performed; audit file assembled within 60 days of the audit report. SA 315 (Revised), effective FY 2022-23, requires entity-specific risk assessment including IT environment, with inherent and control risk separated. SA 600 governs principal auditor reliance on component auditors for consolidated audits. SA 700 (Revised) prescribes audit report format with Opinion first, Basis, KAM, Management Responsibility, Auditor Responsibility. SA 701 mandates Key Audit Matters for all listed company audits. SA 720 (Revised) requires reading Director Report and MD&A for inconsistencies.

Our Standards on Auditing Services

Service	What We Do
SA Gap Assessment for Audit Committees and Boards	Independent SA-compliance review of an existing audit engagement (whether Patron or another firm performed the audit) - examining engagement letter (SA 210), planning memo (SA 300), risk assessment (SA 315 Revised), audit evidence (SA 500), and reporting (SA 700 Revised, SA 701, SA 720 Revised); written gap report with paragraph-level references.
SA Gap Assessment for M&A Diligence Buyers	Pre-acquisition diligence on target company prior audit quality - identifying SA compliance gaps that may indicate audit risk or hidden financial reporting issues; informs purchase price adjustments and representation and warranty insurance.
NFRA Inspection Response (Company-Side)	Drafting written representations on accounting policy positions and audit findings; coordination with statutory audit firm on joint response; technical positions backed by SA paragraph references and ICAI guidance.
NFRA Inspection Response (Audit-Firm-Side)	For audit firms facing NFRA inspection - working paper review and remediation, SA compliance gap closure, written response drafting, technical position memos, post-inspection action plan.
SQC 1 Implementation for Audit Firms	Firm-level Quality Control system design and implementation - leadership and tone at top, ethical requirements monitoring, client acceptance and continuance procedures, human resources policies, engagement performance manuals, monitoring and remediation.
ICAI Peer Review Preparation	Audit working paper review against SA framework; gap closure; representation drafting; mock Peer Review walk-through; coordination with assigned Peer Reviewer.
Audit Firm Staff Training on SAs	Customised training programmes for newly qualified CAs and audit firm staff - SA 315 Revised risk assessment, SA 540 fair value estimates, SA 600 group audit, SA 701 KAM drafting; case-study-based with current NFRA inspection findings as learning material.
SA-Compliant Statutory Audit (Patron Own)	All Patron statutory audits are conducted in compliance with SAs - documented audit file (SA 230), planning memo (SA 300), risk assessment (SA 315 Revised), substantive testing (SA 500), audit report (SA 700 Revised), KAM for listed clients (SA 701).

Our Process

Our 6-Step SA Compliance Engagement Process

Patron follows a structured 6-step process for every Standards on Auditing engagement. Each step is documented against specific SA paragraphs and ICAI Implementation Guides so deliverables withstand future NFRA inspection or Peer Review scrutiny.

Step 1

Engagement Scoping and Engagement Letter

30-minute partner discovery call to understand the engagement type - SA gap assessment, NFRA inspection response, SQC 1 implementation, Peer Review preparation, or audit firm training. Fixed-fee quote and engagement letter under SA 210 framework within 24 hours.

Partner call SA 210 letter Fixed-fee quote

Scoped 01

Step 2

Working Paper File Review

For SA gap assessment, Patron reviews the existing audit working paper file - engagement letter (SA 210), planning memo (SA 300), risk assessment (SA 315 Revised), audit evidence (SA 500-580), management representation letter (SA 580), and audit report (SA 700 Revised); mapped against SA paragraph-level requirements.

SA 230 audit file SA 315 risk Paragraph-level

File Reviewed 02

Step 3

Gap Identification

Written list of SA compliance gaps with severity rating (critical, significant, minor); each gap referenced to specific SA paragraph; potential consequences (qualification of opinion, NFRA inspection risk, Peer Review failure, ICAI disciplinary action) documented.

Severity rating Paragraph cite Consequences mapped

Gaps Identified 03

Step 4

Remediation Plan

Detailed remediation plan with responsible person, timeline, and supporting evidence required; coordinated with audit firm (where applicable) for working paper supplements; technical memos drafted for material judgemental areas.

Owner assigned Timeline locked Evidence list

Plan Set 04

Step 5

Stakeholder Communication

For company-side engagements - Audit Committee briefing; for audit-firm-side engagements - partner team briefing; for NFRA inspection - drafting of written representations and supporting working papers; clear positioning on SA paragraph compliance.

Audit Committee Written reps Partner brief

Briefed 05

Step 6

Implementation and Documentation

Implementation of remediation actions; SQC 1 firm policies rolled out (where applicable); Peer Review submission package prepared (where applicable); NFRA inspection response submitted with supporting working papers; post-engagement debrief with lessons-learned memo.

Remediation done Submitted Lessons memo

Closed 06

Documents Required for SA Compliance Engagement

Patron requires the following documents to scope and execute a Standards on Auditing engagement. The exact list depends on whether the engagement is SA gap assessment, NFRA inspection response, SQC 1 implementation, Peer Review preparation, or audit firm training.

For SA Gap Assessment

Audit engagement letter (SA 210)
Audit planning memo (SA 300)
Risk assessment documentation (SA 315 Revised)
Materiality determination (SA 320)
Audit programmes and substantive testing working papers (SA 500-580)
Management representation letter (SA 580)
Audit report with UDIN (SA 700 Revised, SA 701 where applicable)

For NFRA Inspection Response

NFRA query letter and supporting documents requested by NFRA
Prior year working papers and audit firm internal review notes
Quality control documentation
UDIN registration printouts

For SQC 1 Implementation (Audit Firm)

Firm partnership deed; current quality control policies
Client acceptance procedures; engagement letter template
Audit programme templates; staff training records
Existing monitoring procedures

For Peer Review Preparation (Audit Firm)

List of audit engagements for the Peer Review period
Working paper files for sample engagements
Firm quality control policies; partner CVs and CA membership numbers
Prior Peer Review reports (if any)

For M&A Diligence SA Review

Target company prior 3-year audit reports and signed financial statements
Auditor engagement letter; auditor KAM section (if target is listed)
Management representation letter
Any qualified opinions or modifications history

Common SA Compliance Issues from NFRA Inspections

Challenge	Impact	How Patron Accounting Solves It
Inadequate SA 315 (Revised) risk assessment documentation	NFRA financial reporting quality reviews frequently identify SA 315 (Revised) gaps - audit firms documenting risk assessment in a templated checklist without entity-specific risk factor analysis, inadequate understanding of IT environment, missing inherent vs control risk separation. SA 315 (Revised) effective from FY 2022-23 onwards has significantly raised the bar.	Entity-specific risk assessment template with IT environment walkthrough, separated inherent and control risk components, and documented procedures responsive to each identified risk.
SA 540 fair value and accounting estimates inadequacy	Fair value measurements under Ind AS 113 - particularly Level 3 inputs for unlisted investments, business combinations, impairment testing - require detailed SA 540 procedures. NFRA inspections find common gaps - audit firms accepting management valuation models without independent challenge, missing sensitivity analysis, inadequate use of auditor expert under SA 620.	SA 540 procedures matrix with prescribed sensitivity testing, independent valuation challenge protocols, and SA 620 expert involvement where Level 3 inputs are used.
SA 600 component auditor inadequate review	Consolidated audits of MNCs and large groups require principal auditor to assess and review component auditor work under SA 600. NFRA findings include missing instructions to component auditor, inadequate scope of review of working papers, group reporting package not aligned with component audit work.	Standardised SA 600 communication and review protocol, group reporting package template, and documented review of component auditor working papers for material components.
SA 701 KAM drafting quality	For listed company audits, KAMs under SA 701 must be entity-specific, describing why the matter was significant and how the audit addressed it. NFRA inspections frequently find boilerplate KAMs - revenue recognition described generically without entity-specific risk factors and procedures.	KAM library with entity-specific drafting and review protocol; mock NFRA review before sign-off; SEBI and NFRA pay close attention to KAM quality in listed company reports.
SA 230 audit documentation completeness	Audit file assembly within 60 days of audit report under SA 230 - common gaps include missing date-stamps on working papers, incomplete cross-references between procedures and findings, post-archival changes without proper documentation.	Pre-archival completeness checklist with mandatory items by SA reference; NFRA treats missing documentation as if the procedure was not performed.
SA 720 (Revised) Other Information procedures	SA 720 (Revised) requires auditor to read other information (Director Report, MD&A, Corporate Governance Report) and identify material inconsistencies with financial statements. Common gap - auditor not reading or only superficially reading the Director Report; missing Other Information paragraph in audit report.	SA 720 procedure with structured comparison of Director Report vs audited financials; mandatory Other Information paragraph in every audit report under SA 700 Revised.

Standards on Auditing Service Fees

Fee Component	Amount
Patron Accounting Professional Fees	Starting from INR 25,000 (Exl GST and Govt. Charges)
Peer Review Preparation (Small Audit Firm)	Rs 25,000 to Rs 1,00,000 - working paper file review for selected engagements; gap closure list; representation drafting; coordination with Peer Reviewer
SA Gap Assessment - Single Engagement	Rs 1,00,000 to Rs 5,00,000 - written SA-by-SA gap report with paragraph references; severity rating; remediation plan
SA Gap Assessment - Large Group with Subsidiaries	Rs 5,00,000 to Rs 15,00,000 - holding company plus sample subsidiaries; SA 600 component auditor review; CFS audit working paper review
M&A Diligence SA Review (Pre-Acquisition)	Rs 1,50,000 to Rs 7,50,000 - target company 3-year audit quality review; risk areas identified; KAM analysis
NFRA Inspection Response (Company-Side)	Rs 1,00,000 to Rs 10,00,000 - written representation drafting; technical position memos; coordination with audit firm
NFRA Inspection Response (Audit-Firm-Side)	Rs 5,00,000 to Rs 50,00,000+ - working paper remediation; SA compliance gap closure; response drafting; post-inspection action plan
SQC 1 Implementation (Audit Firm)	Rs 50,000 to Rs 5,00,000 one-time - firm QC policy manual; client acceptance procedures; engagement performance protocols; monitoring system
Audit Firm Staff Training (Per Programme)	Rs 25,000 to Rs 5,00,000 - customised curriculum; case-study-based; current NFRA observations integrated
Government and ICAI Filing Fees	ICAI Peer Review Board fees and NFRA filing fees billed at actuals

All fees and charges listed are indicative only and do not constitute a binding offer. Final amounts may vary depending on the volume of work and the complexity involved.

Professional service charges for drafting, filing, and representation are separate from the statutory fees. The exact fee depends on the complexity of the case, disputed amount, and number of hearings required. Contact us for a detailed quote.

Get a free Standards on Auditing consultation - Call +91 945 945 6700 or WhatsApp us. No-obligation assessment.

Engagement Timelines

Stage	Estimated Timeline
Peer Review Preparation (Small Firm)	4 to 6 weeks - Weeks 1-2 file review; Weeks 3-4 gap closure; Weeks 5-6 mock review and submission
SA Gap Assessment - Single Engagement	2 to 4 weeks - Week 1 data; Weeks 2-3 review; Week 4 report and Audit Committee briefing
SA Gap Assessment - Large Group	6 to 12 weeks - includes holding company plus sample subsidiaries; SA 600 component auditor review
M&A Diligence SA Review	3 to 6 weeks - aligned with overall diligence calendar
NFRA Inspection Response (Company-Side)	4 to 8 weeks - query analysis; technical position drafting; auditor coordination; submission
NFRA Inspection Response (Audit-Firm-Side)	8 to 16 weeks - working paper review; gap closure; response drafting; submission; appearance preparation
SQC 1 Implementation (Audit Firm)	4 to 8 weeks - Weeks 1-2 current state assessment; Weeks 3-5 policy drafting; Weeks 6-8 roll-out and training
Audit Firm Training	1 to 4 weeks per programme - half-day to 5-day customised programmes

Standards on Auditing compliance is not a once-a-year tick box. Peer Review cycles run 3 to 5 years; NFRA inspections happen periodically and unannounced; SA gap assessment is best done before signing the next year ADT-1. Patron is engaged year-round - from quick assessments to multi-month NFRA inspection responses.

Key Benefits

Why Choose Patron for Standards on Auditing

Senior Partner CA on Every Engagement

15+ years of audit practice including direct experience with NFRA inspection response and ICAI Peer Review across multiple firms. Partner-led, not delegated to juniors.

SA-by-SA Paragraph-Level Depth

Every deliverable references specific SA paragraphs and ICAI Implementation Guides; not template-based checklists. Designed to withstand NFRA, Peer Reviewer, or any regulatory scrutiny.

Independence for SA Gap Assessment

Patron is independent of the audit firm being reviewed - clean SA 220 and Section 141 independence for company-side reviews and Audit Committee assignments.

Integrated Framework Cluster

SA reviews integrate with Patron Accounting Standards and Ind AS services - same partner CA handles audit framework and reporting framework questions in a single engagement.

4-Office Pan-India Presence

Marine Lines Mumbai, Wagholi Pune, Rohini Delhi, Golf Course Extension Road Gurugram - direct on-site availability for audit firm workshops and Audit Committee meetings.

Fixed-Fee Transparency

Written scoping memo and fixed-fee quote within 24 hours. No surprise overruns even on multi-week engagements like NFRA inspection response or SQC 1 implementation.

NFRA-Inspection-Grade Audit Files

All Patron statutory audits are conducted in compliance with SAs - documented audit file (SA 230), risk assessment (SA 315 Revised), substantive testing (SA 500), audit report (SA 700 Revised).

Year-Round SA Engagement

From quick Peer Review preparation to multi-month NFRA inspection responses, Patron is engaged year-round with audit firms, Audit Committees, CFOs, and M&A diligence teams.

Trusted by Audit Committees, CFOs and Audit Firms

10,000+ Businesses Served | 4.9 Google Rating | 50,000+ Documents Filed | 15+ Years of Practice

"After our audit firm faced an NFRA query on SA 540 and SA 600 compliance, Patron team did a working paper remediation across 4 group audits in 12 weeks. Each SA paragraph gap was closed with new procedures, supplemental working papers, and revised technical memos. The NFRA response was submitted with confidence and well-received."
- Engagement Partner, Mid-tier audit firm

Trusted by Audit Committees of listed companies, Group CFOs, mid-tier audit firms, and Big 4 M&A diligence teams. Patron operates in the mid-market and audit-firm-services niche.

Anonymised engagement: A listed-company Audit Committee engaged Patron for an independent SA gap assessment of their continuing statutory auditor. The 4-week review identified 9 SA gaps - 3 critical (SA 315 Revised risk assessment templating, SA 540 Level 3 fair value challenge, SA 701 boilerplate KAMs) and 6 significant. The Committee used the findings to require working paper supplements before signing the next year ADT-1 - and the audit firm subsequently strengthened its SA 315 procedures across all listed-company engagements.

With offices in Pune, Mumbai, Delhi, and Gurugram, Patron serves audit firms and Audit Committees across India - both in-person and remotely.

Big 4 vs Patron for SA Compliance Services

Factor	Big 4 / Top Firm	Patron Accounting
Fee level (single engagement SA gap)	Rs 5 lakh to Rs 25 lakh	Rs 1 lakh to Rs 5 lakh
Fee level (NFRA inspection audit-firm-side)	Rs 25 lakh to Rs 2 crore	Rs 5 lakh to Rs 50 lakh
Partner involvement	Director or partner rare for mid-market	Senior partner CA on every engagement
Independence for SA gap assessment	Conflict if Big 4 is parent firm auditor	Clean independence under SA 220 and Section 141
Audit firm SQC 1 implementation	Generally not offered to other audit firms (competitor concerns)	Yes - dedicated audit firm services line
Audit firm staff training	Internal only	External training for other audit firms
Engagement model	Brand plus global IFRS audit network	Partner attention plus audit firm services niche plus fixed fees
NFRA inspection response speed	4 to 16 weeks with layered review	4 to 12 weeks with direct partner drafting
M&A diligence SA review	Offered for Big 4 audit clients only	Open to any acquirer or PE fund regardless of target auditor

Related Patron Services

Standards on Auditing is the audit methodology framework. It pairs naturally with the audit service pages (where SAs are applied) and with the reporting framework pages (what is being audited).

Statutory Audit: SA-compliant statutory audit under Section 139 - the service where SAs are applied
Statutory Audit for Listed Companies: SA 701 KAM mandatory; SRE 2410 quarterly review; NFRA oversight
Statutory Audit for Private Limited Company: SA framework applied to Pvt Ltd audits
Statutory Audit for LLP: SAs apply to LLP audit under Rule 24(8) LLP Rules
Tax Audit (Section 44AB): SAs apply to tax audit; Form 3CA/3CB and 3CD
Internal Audit (Section 138): Internal audit uses SIAs (Standards on Internal Audit) - separate framework from SAs
Accounting Standards: AS plus Ind AS - what to report (SAs are how to audit that)
Ind AS: Ind AS deep dive - audited under the SA framework

Legal and Compliance Framework for SAs

Standards on Auditing draw their legal authority from the Companies Act 2013, the Chartered Accountants Act 1949, and the NFRA Rules 2018. The Income Tax Act 1961 extends SA compliance to tax audits under Section 44AB.

Provision / Authority	Detail
Section 143(10) Companies Act 2013	Every auditor shall comply with the auditing standards - the primary legal authority for SAs
Section 143(11) Companies Act 2013	Central Government to prescribe additional matters to be reported under CARO; CARO 2020 currently notified
Section 143(12) Companies Act 2013	Fraud reporting - above Rs 1 crore to Central Government per Rule 13; below to Audit Committee or Board
Section 142 Companies Act 2013	Remuneration of auditors - reference to compliance with auditing standards
Companies (Audit and Auditors) Rules 2014	Rule 12 on duties of auditor; Rule 13 on fraud reporting; procedural requirements
Chartered Accountants Act 1949	ICAI mandate to issue auditing standards through AASB; disciplinary mechanism under Schedule
NFRA Rules 2018	National Financial Reporting Authority to oversee compliance with auditing standards by auditors of Public Interest Entities
Section 132 Companies Act 2013	NFRA constitution and powers - including investigation, monetary penalties up to 10x of fees and 10-year debarment for non-compliance
ICAI Peer Review Board	Mandatory Peer Review for audit firms auditing listed companies and certain other PIEs; cycle of 3-5 years depending on firm category
ICAI Quality Review Board (QRB)	QRB oversight on audit quality for non-PIE audits
SEBI LODR 2015 Regulation 33	Quarterly limited review under SRE 2410 for listed company audits
Section 44AB Income Tax Act 1961	Tax audit by Chartered Accountant - SAs apply to tax audit as well
Form 3CA / 3CB and Form 3CD	Tax audit report formats issued under Income Tax Rules; signed under UDIN
UDIN (Unique Document Identification Number)	ICAI requirement - every audit report signed by a Chartered Accountant must have UDIN generated through the ICAI UDIN portal

External references: Institute of Chartered Accountants of India (ICAI) | National Financial Reporting Authority (NFRA) | Ministry of Corporate Affairs (MCA) | India Code (Companies Act 2013 + Chartered Accountants Act 1949)

Frequently Asked Questions

Common questions on the legal force of Standards on Auditing, SA 701 Key Audit Matters, NFRA oversight, SA 600 component auditor work, SQC 1 quality control, ICAI Peer Review, tax audit, and the distinction between SAs and Standards on Internal Audit.

Quick Answers

Who issues SAs? Auditing and Assurance Standards Board (AASB) of ICAI, approved by ICAI Council.

Legal force? Section 143(10) Companies Act 2013 - mandatory compliance for every auditor.

Number of SAs? 39+ SAs across 7 numbered categories from SA 100 to SA 810.

SA 701 mandatory for? All listed company audits plus certain other entities; KAM disclosure required.

SQC 1 applies to? Every CA firm in practice regardless of size - firm-level quality control.

NFRA penalty range? Up to 10 times audit fees plus 10-year debarment under Section 132 and NFRA Rules 2018.

Patron starting fee? Rs 25,000 for small firm Peer Review preparation.

NFRA Inspections Are Periodic and Unannounced

Standards on Auditing compliance is the primary basis for NFRA inspection findings, ICAI Peer Review outcomes, and audit firm professional indemnity exposure. For audit firms auditing listed companies and other Public Interest Entities, Peer Review cycles run 3-5 years with mandatory submission to ICAI Peer Review Board; NFRA inspections happen periodically and unannounced. For Audit Committees and Boards, SA gap assessment of an incoming statutory auditor or a continuing engagement is best practice before signing the next year ADT-1.

For M&A diligence buyers, SA gap review of target company audits identifies hidden audit quality risk before deal closure.

Get a fixed-fee Standards on Auditing engagement quote - Call +91 945 945 6700 or WhatsApp us. Partner CA response with written scoping memo within 24 hours.

SA Framework. NFRA Inspection. Peer Review. One Specialist.

Standards on Auditing are the procedural backbone of every statutory audit, tax audit, and assurance engagement performed by a Chartered Accountant in India. Section 143(10) of the Companies Act 2013 makes compliance mandatory; NFRA enforces compliance for Public Interest Entities with penalties of up to 10 times audit fees plus 10-year debarment; ICAI Peer Review Board enforces compliance through periodic working paper review; ICAI disciplinary mechanism enforces compliance through complaint-based proceedings. The SA framework is comprehensive - covering audit objectives (SA 200), engagement acceptance (SA 210), planning (SA 300), risk assessment (SA 315 Revised), audit evidence (SA 500-580), using work of others (SA 600-620), and reporting (SA 700-720 Revised) - with adjacent standards SQC 1, SRE, SAE, and SRS.

Patron Accounting offers a dedicated Standards on Auditing service line - SA gap assessment for Audit Committees, Boards, and M&A diligence buyers; NFRA inspection response for both company and audit firm sides; SQC 1 implementation for audit firms; ICAI Peer Review preparation; and audit firm staff training. Our own statutory audits are NFRA-inspection-grade SA-compliant. With 15+ years of practice, 4-office pan-India presence, senior partner CA involvement on every engagement, and fixed-fee transparency, Patron is the specialist counsel for Standards on Auditing compliance in India.

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Standards on Auditing Advisory Across India

Patron serves Audit Committees, audit firms, and Group CFOs across India - both in-person from our four offices and remotely everywhere else.

Our Offices Across India

In-person SA gap assessment, NFRA inspection response, and audit firm workshops in our four offices, remote coverage everywhere else.

Related Services

Audit services where SAs are applied and reporting framework counterparts

Statutory Audit

India

Statutory Audit (Listed Cos)

India

Tax Audit (Section 44AB)

Content Created: 14 May 2026 | Last Updated: | Next Review: 14 November 2026 | Reviewed By: CA & CS Team, Patron Accounting LLP

This page is reviewed every 6 months (Freshness Tier 2 - Audit and Assurance). Triggers for earlier review include ICAI AASB notification of new or revised SA, NFRA Rules 2018 amendment, ICAI Peer Review Board guidelines update, Section 143(10) Companies Act amendment, SEBI LODR Reg 33 review cadence change affecting SRE 2410, UDIN portal procedural changes, new SQC 1 amendments, or Chartered Accountants Act 1949 disciplinary mechanism amendment.