November 20, 2025 · Av. Arb. Melis Belibağlı Buluz
The majority of disputes between the tax authority and taxpayers begin with the notification of tax/penalty notices issued as a result of a tax audit. The time limits that start running upon notification are of a preclusive nature, and if they are missed the assessment becomes final.
Time Limit for Filing an Action
Under the Administrative Procedure Law No. 2577, the general time limit for bringing an action before the tax court is thirty days from notification. Filing an action automatically stays collection of the assessed tax as a rule; therefore, a timely action constitutes an important safeguard for the taxpayer both in terms of seeking legal remedy and cash-flow management.
Pre-Action and Alternative Remedies
- Settlement: Where the conditions are met, settlement may be requested within thirty days of notification of the notice. If settlement fails, an action may be brought within the remaining period (at least fifteen days).
- Penalty reduction (Tax Procedure Law Art. 376): In return for waiving the right to litigate, reductions at the rates prescribed by law are applied to tax-loss penalties and irregularity penalties.
- Invitation to explain: At the pre-audit stage, the process may be concluded before reaching the litigation stage through acceptance of the explanation or correction of the return under certain conditions.
- Correction–complaint: In cases involving a tax error, the correction and complaint procedure may be pursued within the statute-of-limitations period for correction, even if the litigation deadline has passed.
Which Route Should Be Chosen?
Settlement, reduction and litigation are routes that may exclude one another and affect the applicable time limits; incorrect sequencing can cause irrecoverable loss of rights. When making a choice, the legal soundness of the assessment, the state of the evidence, precedent court decisions, the interest burden and the cash position of the business must all be considered together.
Key Scrutiny Areas in Litigation
- Statute of limitations for assessment and the regularity of notification
- Procedural safeguards in audit and assessment-committee processes
- The basis of the tax-base determination (books and records, cross-audits, sector data)
- The typicality elements of the penalty and the recidivism regime