SFAI member · international network in 70 countries
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Independent audit

Global experience, with founding-partner proximity.

Our founding partners trained at the leading audit firms. With SFAI's network across 70 countries, we provide assurance on your financial statements to international standards.

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Sustainability assurance

Is your TSRS report ready for its first assurance year?

From gap analysis to greenhouse gas verification, we prepare your sustainability report for independent assurance end to end.

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Capital markets

On your IPO journey, from prospectus to first KAP report.

Special independent audit of the financial statements included in the prospectus, and IPO readiness assessment.

IPO audit CMB priority criteria
2026 thresholds

Is your company subject to independent audit?

Total assets TRY 500 million, net sales TRY 1 billion, 150 employees. Enter your last two years and see the result instantly.

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Quick actionswith 2026 figures
Am I subject to audit?Check against 2026 thresholdsRediscountNotes receivable and payableInterest (adat)Current-account interest and VATSeverance payCeiling and stamp dutyNotice payNotice period, income tax and stamp duty
Free pre-check

Is your company subject to independent audit in 2026?

Enter three figures from your last financial year and we will compare them instantly with the current thresholds. Your data is not sent anywhere.

  • TRY 500 milliontotal assets
  • TRY 1.000 millionnet sales revenue
  • 150employees

Source: Presidential Decree No. 11066, Official Gazette 17.03.2026. At least two of the criteria must be exceeded in two consecutive financial years.

26services, 5 areas of expertise
3founding partners
70countries in the SFAI network
25,000+SFAI professionals
Services

Choose the area of expertise that fits your needs.

From statutory audit to crypto-asset reserve audit, every area is led by an experienced partner.

All services
01

Audit and Assurance

An independent opinion on your financial statements and reports that investors, lenders and regulators rely on.

All 8 services
02

Corporate Finance

Analysis that reveals the reality behind the numbers in valuation, acquisition and financing decisions.

All 4 services
03

Advisory

Practical solutions in internal control, risk, processes, finance transformation and technology.

All 6 services
04

IT Risk Management

The independent assurance regulators expect in crypto assets, personal data, MASAK and supply chain compliance.

All 5 services
05

Customers and Marketing

Market sizing, feasibility and consumer insight that give your growth decisions a data foundation.

All 3 services

Didn't find exactly what you need?

Tell us what you need for a special-purpose audit, a review report or a one-off engagement, and we will decide on the right team together.

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Services in focus

Be ready for new regulatory expectations.

Audit and AssuranceIndependent AuditAn independent auditor's opinion, to international standards, on the financial statements of companies subject to the Turkish Commercial Code, the CMB, the BRSA and the EMRA.Explore →Audit and AssuranceIPO AuditSpecial independent audit, in line with CMB regulations, of the financial statements to be included in the prospectus, and preparation for the IPO process.Explore →Audit and AssuranceTSRS and Sustainability AssuranceTSRS scoping, reporting readiness and independent assurance on your sustainability reports and greenhouse gas data; assurance on ESG and GRI reports too.Explore →Corporate FinanceValuationValuation of businesses, shares and intangible assets; purchase price allocation (PPA) and impairment testing.Explore →IT Risk ManagementCrypto Asset Platform Audit and AssuranceAsset audits, MASAK compliance assurance and technology infrastructure assurance for crypto asset service providers.Explore →
Why ARSEN

Big-firm methodology, boutique-firm access.

Our founding partners spent years as auditors and lead auditors at the leading audit firms, including the "Big Four". We apply the same methodology and quality discipline; the difference is that you can speak directly to the partner who makes the call.

01

Founding-partner access

The partner who will sign the report is on site and reachable from the opening meeting to the report.

02

Standard methodology

A risk-based audit approach aligned with Turkish Standards on Auditing and ISA, supported by data analytics.

03

International network

As an SFAI member we work in coordination with member firms on cross-border group audits.

04

Depth of expertise

Experience in niche areas, from IPOs to crypto assets and from TSRS to MASAK compliance.

International network

With SFAI, we are by your side in 70 countries.

ARSEN is a member of Santa Fe Associates International (SFAI), one of the world's 20 largest audit and advisory networks, and leads SFAI's presence in Turkey. We work with member firms on the audits of your foreign subsidiaries and on your cross-border transactions.

About SFAI
70countries
255offices
25,000+professionals
Audit process

From proposal approval to the report.

At every stage you know what comes next and what is expected of you.

  1. Acceptance and independenceIndependence assessment, engagement letter and audit timetable.
  2. Planning and risk analysisWe identify focus areas by understanding your business and control environment.
  3. FieldworkTests of controls, data analytics and substantive procedures.
  4. ReportQuality control, independent auditor's report and management letter.
2026 thresholds and amounts

The most requested figures at a glance.

Last updated: October 22, 2026

Full practical guide
Independent audit thresholdTRY 500 milliontotal assets · TRY 1 billion net sales · 150 employeesSeverance pay ceilingTRY 73,729.8701.07.2026 – 31.12.2026Late payment surcharge3.7% / monthfrom 13.11.2025Direct expensing limitTRY 12,0002026 · Tax Procedure Law 313
Insights

Audit circulars and updates

We interpret regulatory changes for you.

All insights
Guide

Appointing and Registering the Independent Auditor: TCC Article 399 Step by Step

Who appoints the auditor and when; how registration and announcement work; what happens if the deadline is missed? A short, practical guide for companies subject to independent audit.

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Guide

Preparing for an Independent Audit: 15 Documents Management Should Prepare

A preparation checklist that shortens fieldwork, lowers audit costs and helps you receive your report on time.

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Announcements

Priority Criteria for Concluding Initial Public Offering Applications

With Principle Decision i-SPK 128.30, the CMB gave priority, without waiting in the queue, to the IPO applications of companies meeting certain criteria.

Read more →
Glossary

Audit and finance terms in plain language.

Definitions of 219 terms, with the related regulation and service.

Go to the glossary
Independent auditReasonable assurance provided by an independent auditor on whether the financial statements are presented fairly, in all material respects, in accordance with the applicable financial reporting framework.Unmodified opinionThe opinion the auditor expresses on concluding that the financial statements are presented, in all material respects, in accordance with the applicable financial reporting framework.MaterialityA misstatement being large enough, individually or together with others, to influence the economic decisions of users of the financial statements.TAS 29 (Financial reporting in hyperinflationary economies)The standard requiring entities whose functional currency is the currency of a hyperinflationary economy to state their financial statements in terms of the purchasing power at the end of the reporting period.Transfer pricingThe pricing of goods, services and financing transactions between related persons; tax legislation requires these prices to be at arm's length.EBITDAEarnings before interest, tax, depreciation and amortisation; used as an indicator of the cash-like profitability generated by a company's core operations.Turkish Sustainability Reporting Standards (TSRS)The standards issued by the POA on the basis of the ISSB standards for companies' reporting of sustainability-related financial information.Financial due diligenceA detailed review of the target company's financial position, profitability, indebtedness and risks before an acquisition or investment.
Industries

Teams that know your industry's risks.

Our industry pages explain the accounting, tax and compliance issues specific to each sector.

All industries
Manufacturing and IndustryInventory valuation, cost accounting, incentivised investments and exports.Industry page →Construction and Real EstateRevenue recognised over time, multi-year contracts and investment property.Industry page →Financial ServicesRegulatory reporting, TFRS 9, internal systems and MASAK compliance.Industry page →Retail and ConsumerHigh transaction volumes, store leases, promotions and inventory management.Industry page →EnergyLicensed activities, regulatory assets (TFRS 20), major investments and sustainability.Industry page →Crypto AssetsReserve audits, CMB regulations, MASAK compliance and information systems security.Industry page →Precious MetalsResponsible supply chain assurance, Borsa Istanbul compliance and MASAK obligations.Industry page →Services and TechnologySubscription revenue, software development costs, R&D incentives and funding rounds.Industry page →E-commerceMarketplace and own-channel sales, returns and promotions, payment reconciliations, warehouse stock and data security.Industry page →Industry not listed?Let's work out which service you need in four questions.Service finder →
Frequently asked questions

Most frequently asked questions about independent audit

What services does ARSEN Audit provide?
We work in five areas of expertise: audit and assurance, corporate finance, advisory, information systems risk management and customer and marketing. Independent audit, IPO audit, sustainability assurance, valuation and crypto asset reserve audits are our most requested services.
Is my company subject to independent audit?
For the 2026 financial year, the general thresholds are total assets of TRY 500 million, annual net sales of TRY 1 billion and 150 employees. Companies exceeding at least two of these three criteria in two consecutive financial years are subject to independent audit. Different thresholds apply to some industries. You can check right away with our audit requirement test.
What information is needed to get an audit proposal?
The company name and industry, total assets and net sales for the last two years, headcount, number of subsidiaries and associates, the reporting framework applied (TFRS or BOBİ FRS), the financial year to be audited and, if any, details of the previous auditor are sufficient. You can send us this information through the proposal form.
How is the independent audit fee determined?
The fee is based on the estimated hours of work, considering the size of the company, its transaction volume, the number of subsidiaries, the reporting framework, the maturity of its accounting and internal control systems and the reporting timetable. Our proposal sets out the scope, team and timetable in writing.
When should the independent auditor be appointed?
Under Article 399 of the Turkish Commercial Code, the auditor is elected by the general assembly before the end of the financial year to be audited and, after election, is registered with the trade registry and announced. If no auditor has been elected by the fourth month of the financial year, one is appointed by the court. For details, read our guide to appointing an auditor.

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Proposal request

Tell us about your company and the scope.

A few details are enough; we will send our team, timeline and fee proposal in writing.

Phone+90 212 951 02 47 E-mail[email protected]
Head officeMerkez Mah. Ayazma Cad. Papirus Plaza No:37 Kat:6 Ofis:2, 34406 Kağıthane / İstanbul
US liaison office188 Thornberry Ln, Rensselaer, NY 12144, USA
+1 518 522 78 40

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