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Expert guides on Turkish and international accounting standards, tax management, e-fatura, inflation accounting, VAT, corporate tax and regulatory compliance. Fully updated for the 2026 Turkish tax calendar and international changes.
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The 2026 Turkish Tax Calendar: Corporate Tax, VAT, SGK and Withholding Deadlines
A month-by-month guide to every major tax filing deadline in Turkey for 2026 — corporate income tax, VAT declarations, SGK premiums, withholding tax, provisional tax periods and stamp duty. Includes the updated thresholds following the 2025 revaluation rate.
Read Full Guide →2026 Key Deadlines
Latest Articles
Why Are Accounting Firms Acquiring IT Service Providers?
Last Updated: June 2, 2026 The landscape of professional advisory services is undergoing a rapid structural transformation as traditional Certified Public Accounting (CPA) firms expand far beyond tax preparation and auditing. A prime example of this evolution is Adams…
How to Effectively Manage Joint Cost Allocation in Complex Manufacturing Environments?
Explore the complexities of joint cost allocation in manufacturing. Learn how to distribute costs between products from common processes using NRV and Sales Value methods to optimize tax efficiency and corporate margins.
Why Does Fixed Overhead Treatment Change Your Profitability in Absorption vs. Direct Costing?
Discover the critical differences between Direct and Absorption costing. Learn how fixed overhead treatment impacts inventory valuation and corporate profitability.
How Does Marginal Costing Strategy Drive Corporate Profitability?
Discover how marginal costing and the ‘next unit’ cost analysis empower C-level executives to make high-impact financial decisions and optimize profitability.
Mastering Standard Costing: How to Set Precision Targets for 2026 Financial Control
Discover the intricacies of standard costing, how to set precise financial benchmarks, and the critical role of variance analysis in corporate profit optimization.
How to Calculate Break-Even Point for a Business to Ensure 2026 Profitability?
Learn how to calculate the break-even point for your business using professional formulas. This 2026 guide covers fixed costs, variable costs, and contribution margins for C-level executives.
Optimizing Profitability: How Activity-Based Costing Transforms Resource Allocation in 2026
Activity-Based Costing (ABC) provides the surgical precision needed to track overhead. Learn how assigning costs based on specific business activities can transform your 2026 profitability strategy.
How to Implement Process Costing in Large-Scale Manufacturing Systems
Discover how to implement process costing in mass production. Learn to calculate equivalent units, allocate overhead, and protect manufacturing margins in 2026.
How Does Job Order Costing Drive Profitability in Specialized Custom Manufacturing?
Discover how job order costing provides the precision needed for custom billable work and specialized orders. Learn to track materials, labor, and overhead for maximum profit.
2026 Calendar
Key 2026 Regulatory Changes
Major accounting and tax regulation updates in effect for 2026
Inflation Accounting — Full Implementation
The postponement period ended. All companies subject to VUK must prepare inflation-adjusted financial statements using the TÜFE restatement method.
Read guide →CBAM Financial Reporting Obligations Begin
The EU’s Carbon Border Adjustment Mechanism moves from voluntary reporting to financial liability. Turkish exporters of steel, cement, aluminium and fertiliser affected.
Read guide →TFRS 19 — Subsidiaries without Public Accountability
New simplified IFRS standard effective for eligible subsidiaries. Reduces disclosure burden while maintaining comparability with full TFRS financial statements.
Read guide →Corporate Tax Annual Return Deadline
Annual corporate income tax return deadline — April 30, 2026. Provisional tax for Q1 2026 due by May 17. First instalment of annual tax payable by May 31.
Read guide →Topic Index
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