How enforcement prosecutors in Türkiye calculate the time a convicted person actually serves, updated for the 11th Judicial Package, with the rules on conditional release, open prison transfer and supervised release explained.

This page explains how a prison sentence in Türkiye is actually served: when a convicted person becomes eligible for conditional release, when they can move to an open prison, and when supervised release begins. The content follows Law No. 5275 on the Execution of Penalties and Security Measures (5275 SK), the 11th Judicial Package of 2026 and the current case law of the 1st Criminal Chamber of the Court of Cassation (Yargıtay 1. CD). It covers repeat offenders, drug offenses, sexual offenses and other special situations.

The calculator itself is available on the Turkish page: link.

Notice: The tool produces an estimate under Law No. 5275 and the 11th Judicial Package. The binding result is the decision of the execution judge (infaz hâkimliği). Every file is different.

Finding Out Your Release Date: A Two-Step Process

Step 1: Calculation at No Charge

Use the calculator on the Turkish page to obtain your estimated release date right away. If you enter an e-mail address, you can receive the result as a PDF. The calculation follows Law No. 5275 and the 11th Judicial Package.

Step 2 (Optional, from TRY 7,200): Three Packages, from Information to Strategy to Action

Official Legal Opinion, TRY 7,200. A formal document signed by Att. Mesut İlme, with QR-code verification. Details (in Turkish)
Roadmap Report, TRY 10,200. Three scenarios, an inventory of arguments in your favor and Court of Cassation precedents. Details (in Turkish)
Intervention Package, TRY 27,000. Two petitions ready for signature, which you file with the court yourself. Details (in Turkish)

Run the calculation first; the results screen suggests the package that fits your situation. Credit card installments of up to 12 months are available. Pricing is consistent with the Minimum Attorney Fee Tariff (AAÜT) of 4 November 2025 (Official Gazette No. 33067) and includes VAT.

Author and Calculation Method

Att. Mesut İlme, Yalova Bar Association reg. no. 287, criminal and execution law. Last updated: 2 August 2026. Based on Law No. 5275, the 11th Judicial Package and the case law of the 1st Criminal Chamber of the Court of Cassation. Author profile (in Turkish)

Execution Law in 2026: What Changed After the 11th Judicial Package?

Last updated: 19 May 2026. Practice trends following Law No. 7571 (25 December 2025).

The Provisional Article 10 Period Was Cut from Five Years to Three

Law No. 7456 (July 2023) granted a five-year early supervised release entitlement for offenses committed before 31 July 2023. The 11th Judicial Package (Law No. 7571, 25 December 2025) reduced this to three years. The change has led to disputes over vested rights in files caught in the transition period. Under the principle of the more favorable law (Turkish Penal Code (TCK) Art. 7), the interpretation adopted by the 1st Criminal Chamber of the Court of Cassation is of critical importance.

Sexual Offenses and Violence Against Women Were Excluded

The offenses under TCK Art. 102 (sexual assault), TCK Art. 103 (sexual abuse of a child), TCK Art. 86/3 (intentional injury of a woman or spouse) and TCK Art. 105 (basic sexual assault) were removed entirely from the Provisional Article 10 reduction by the 11th Judicial Package. For persons convicted of these offenses, the sentence calculation notice (müddetname) continues to follow the old regime. The calculator takes this exception into account.

Aggregated Sentences: the "Virus Logic" and Separation

Recent decisions of the 1st Criminal Chamber show that when a convicted person who has a sentence for an offense committed before 31 July 2023 later has even a short sentence added and aggregated with it, there is a risk that the three-year early supervised release entitlement is lost for the entire file. In that situation, a petition for separation of aggregated sentences (in Turkish) is a strategic legal step; once the aggregation is separated, the more-favorable-law principle can be applied.

A Stricter Execution Regime for Repeat Offenders

Under TCK Art. 58, repeat offenders are subject to a special execution regime. The conditional release ratio rises to 2/3 for a first repeat and to 3/4 for a second. The 11th Judicial Package shortened the supervised release periods applied to repeat offenders. In frequently seen recidivism files such as drug use (TCK Art. 191), the calculation should be redone.

Why It Matters to Spot Errors in the Prosecutor's Calculation

Enforcement prosecutors issue thousands of sentence calculation notices every month. Applying the wrong conditional release ratio, omitting credit for time already spent in detention (mahsup) or skipping the Provisional Article 10 reduction can turn a one-day calculation error into months or years of extra prison time. Under Law No. 5275 Arts. 98 to 101, you have 15 days from service of the notice to object to the execution judge. If you miss the deadline, you lose the right.

To identify a faulty notice, a sample objection petition against a sentence calculation notice (in Turkish) and a lawyer's analysis are essential. The calculator applies the general rules, but only a lawyer can identify the specific erroneous step in your own notice. To read and verify the dates in your notice step by step, you can also use our separate page on checking the sentence calculation notice (in Turkish).

11th Judicial Package Scope Table: Detailed Analysis

Which offense types benefit from which reduction, which offenses are excluded, and how is the interpretation of the 1st Criminal Chamber developing? For the full scope table, see our page 11th Judicial Package Provisional Article 10 Interpretation Table (in Turkish).

The Execution Regime in Turkish Criminal Law: Time-to-Serve Criteria and Problems in Practice

A comprehensive legal guide in light of 2026 case law and the 11th Judicial Package.

In our legal system, defendants and their counsel usually see the end of the trial stage and the finalization of the conviction after review by the Court of Cassation or the Regional Court of Appeal as "the end of the road." This misconception is the main reason for irreversible loss of rights and for extra years lost in prison corridors. A final conviction is only a beginning. The real contest is played out in the execution law phase, which determines how that judgment is carried out.

The calculator on the Turkish version of this page was written to simplify the tangle of Turkish legislation. But dates produced by a machine are mere data without a lawyer's strategic input. In this article by İlme Law Office, we examine the legal anatomy of "time to serve," the complexities of Law No. 5275 on the Execution of Penalties and Security Measures, the balance shifted by the 11th Judicial Package, and the ways to challenge the sentence calculation notices prepared by enforcement prosecutors.

1. The Dynamic Nature of Execution Law and the "Omnibus Law" Paradox

Execution law is the least stable area of the Turkish legal system, the one most affected by the political climate, and one that omnibus laws and provisional articles have turned into a patchwork. While the statutes governing an ordinary contract or civil case stay the same for decades, execution legislation undergoes a sweeping "judicial package" operation almost every two years.

Behind this dynamism lie prison capacity problems and shifting criminal justice policy. Ninety-nine percent of the measures known to the public as "amnesties" are not general or special amnesties in the technical sense. They are changes to the execution regime. A ten-year sentence imposed by the court still appears as ten years on the criminal record, but the time the person spends in prison, the conditions for moving from a closed to an open institution and the supervised release ratios are altered.

This is exactly why the question "My friend got five years and was out after one, so why am I serving three?" is the situation we encounter most often when reviewing execution files. Every convicted person's execution is as unique as a fingerprint: a mathematical function of the offense date, the offense type and personal circumstances.

2. The Sword of Time: Why the "Offense Date" Changes Everything

The heart of the calculation, and of the calculator, is the offense date. Not the date the sentence became final, and not the date the person entered prison, but the day the offense was committed determines the applicable execution regime. Under the principle of retroactive application of the more favorable law, if the execution rules change to the person's detriment after the offense, the old and more favorable law applies; if they change in the person's favor, the new law applies.

Three historic thresholds cut the Turkish execution system into three parts:

A. The 30 March 2020 Threshold (Law No. 7242)

Enacted during the Covid-19 pandemic, this law changed the backbone of the execution system. For ordinary offenses committed before 30 March 2020, the conditional release ratio was 2/3; this law reduced it to 1/2. For offenses committed before that date (with exceptions), the supervised release period was also extended to three years.

B. The 31 July 2023 Threshold (Law No. 7456 / Provisional Article 10)

Introduced to reduce prison overcrowding, this provisional article opened a wide door to release for offenses committed on or before 31 July 2023 (other than the excepted offenses). The rule granted early transfer from closed to open prison and five years of early supervised release, and became known to the public as the "five-year amnesty." That wide door was soon narrowed by a new judicial package.

C. The December 2025 Threshold: The 11th Judicial Package (Law No. 7571)

This is the most recent change and the one that reshuffled the cards for convicted persons. With the 11th Judicial Package, in force since 25 December 2025:

The well-known five-year early release rule in Provisional Article 10 was cut back to three years.
Violence against women, intentional injury of a spouse, sexual abuse of a child and basic sexual assault were removed entirely from the reduction, and it was laid down that persons convicted of these offenses serve their sentences in full.
A harsh "virus" logic was introduced into the rules on aggregation of sentences (içtima). If a convicted person has a sentence for an offense committed before 31 July 2023, and even a one-month sentence for an offense committed after 31 July 2023 is added to it and aggregated, all three-year early release reductions in that file are lost.

Note: When you select the offense date in the calculator, the algorithm that runs in the background analyzes these historical transitions for you within seconds.

3. Conditional Release (Parole): Trimming the Sentence

A person sentenced by the court to ten years does not spend all ten years in prison. Provided the convicted person is of good conduct in prison, the state releases them after a certain proportion of the sentence has been served, with the aim of reintegrating them into society. This is called conditional release.

The applicable ratio depends directly on the type of offense:

The 1/2 Ratio (Ordinary Offenses)

For standard offenses such as theft, fraud, insult, threat and negligent injury, half of the sentence is served. (Example: a person sentenced to six years becomes eligible for conditional release at the end of three years.)

The 2/3 Ratio (Serious Offenses and First-Time Repeat Offenders)

Applies to intentional killing, torture, tormenting, basic sexual assault, offenses against state secrets, and persons who have made a habit of offending (first repeat).

The 3/4 Ratio (Exceptional and Terrorism Offenses)

For manufacturing and trafficking of narcotic or stimulant substances (TCK Art. 188), terrorism offenses (all acts within the scope of Law No. 3713), aggravated sexual assault and sexual abuse of a child, the legislator shows no leniency. Three quarters of the sentence is served under prison conditions.

The 4/4 Ratio (Second Repeat)

For second-time repeat offenders, and for persons sentenced to aggravated life imprisonment for offenses against state security committed within the framework of an organization, there is no conditional release. These persons do not leave closed prison for the rest of their lives.

4. Transfer Within the Prison System: From Closed to Open Prison

In the Turkish penal system, prisons are divided by security level into two kinds: closed and open. Closed institutions are high-security facilities with walls and armed guards. Open institutions have more of a "campus" or "workshop" atmosphere, with no external security; inmates work during the day and return to their dormitories in the evening, and leave and telephone rights are very broad.

The main goal of every inmate is to move to an open institution as soon as possible. The transfer is not automatic. Under the Regulation on Transfer to Open Penal Institutions, the rule is this:

Unless the inmate falls under one of the exceptions allowing direct placement in an open institution (negligent offenses or very short sentences), they must spend one tenth of the conditional release period, not of the total sentence, in a closed prison.

Example Calculation:

An inmate sentenced to eight years for theft.

The conditional release ratio is 1/2, so the time to serve is four years.
Four years is 1,460 days (4 × 365).
One tenth of 1,460 days is 146 days.
This inmate must spend at least 146 days (about five months) in a closed prison. The remaining period can be spent in an open prison.

Caution: Completing the period is not enough on its own to move to an open prison. The inmate must obtain a "good conduct" decision from the Administration and Observation Board. An inmate who receives a disciplinary sanction (for example, for keeping a phone in the dormitory or fighting) loses the right to transfer.

5. Freedom With Limits: Supervised Release

Supervised release means that the convicted person is released from prison entirely a certain time before the conditional release date (most often one year before) and returns to civilian life, but is subject to obligations such as reporting to sign in, attending seminars, unpaid community work or electronic tagging.

Under normal conditions the general rule is supervised release one year before the conditional release date. However, through the 11th Judicial Package and the other omnibus laws described in section 2 above, this one-year rule can extend to as much as three years depending on the offense date.

Special Cases: Patients and Mothers

In line with the "social state" principle, the legal system gives certain disadvantaged groups positive treatment:

Women inmates with a child aged 0 to 6

The execution ratio is generally applied more favorably, and supervised release periods can be extended to four years, except for exceptional offenses.

Serious illness, disability or old age

Persons found by a report of the Forensic Medicine Institute (ATK) to be unable to sustain their lives on their own under prison conditions may have execution of their sentence deferred, or their supervised release period extended.

CAUTION: Supervised release is applied more like a favor than a right. Even a single breach of the rules (for example, not going to the police station on the signing day, or committing a new offense) causes the execution to be revoked (a "burned" execution). The person is taken back to closed prison by the police and serves the entire remaining period there.

6. Enforcement Prosecutor Calculation Errors and the Path to Review

When your sentence becomes final, the file goes to the Enforcement Prosecutor's Office. The enforcement prosecutor calculates all the complex ratios, offense dates and detention credits described in this article and prepares a one-page document called the sentence calculation notice (müddetname). This document is the roadmap that tells the prison administration: "You received this person on this date; transfer them to open prison on this date; send them to supervised release on this date; and release them definitively on this date."

Yet the greatest tragedy of the system is this: enforcement prosecutors prepare thousands of notices every day and make legal errors on a remarkable scale.

They may miscode an ordinary offense that qualifies for the three-year reduction under Provisional Article 10 and calculate it as an excepted offense.
They may forget to credit the days the person spent in detention in an earlier file that ended in acquittal (mahsup).
They may skip the rule that counts one day as two or three days for offenses committed as a minor.
Worst of all, they may misinterpret the 11th Judicial Package aggregation rules and wrongly cancel the person's favorable reduction.

An ordinary inmate believes the date on the notice handed to them and serves extra years in prison. But that document is not gospel; it is neither final nor beyond challenge. For how to read the notice, its five critical dates and the most common errors, see our guide to checking the sentence calculation notice.

7. Challenging the Calculation: The Role of Legal Counsel

If you or a relative face the prospect of imprisonment, reading pages of articles online or running an estimate with the calculator is only the first step. Just as reading test results online and operating on yourself would be fatal, leaving the execution process to the discretion of the prison administration without a lawyer's strategic input can be just as damaging.

What Our Office Does

1. Objection to the Execution Judge and Review of the Prosecutor's Calculation

We recalculate the notice served on you or delivered in prison line by line and law by law. Where the prosecutor's office has made even the smallest error in a reduction, we apply immediately to the execution judge for cancellation of the notice and recalculation of the periods in your favor. Errors of this kind can amount to months or even years of prison time.

2. Separation of Aggregated Sentences (İçtima)

If you have several sentences from different courts, the prosecutor's office combines them into a single execution. Which sentences are aggregated, in what order and under which legal period is of vital importance. We request the "separation" of aggregation decisions that work against you, applying the legal formulas that protect you from the harsh effects of the 11th Judicial Package.

3. Objection to Good Conduct Decisions of the Administration and Observation Board

Even after you complete the required period in prison, the board may say "this person is not of good conduct and has shown no remorse" and postpone your release for months. Board decisions are often boilerplate and lack legal reasoning. We object to them before the execution judge and the Heavy Penal Court, submitting the Court of Cassation and Constitutional Court case law holding that execution cannot be revoked on abstract grounds, in order to clear the way for your release.

4. International Experience

Beyond Türkiye, we handle for clients in Germany, Florida (USA) and other jurisdictions requests to suspend execution of final Turkish sentences, limitation period calculations and expungement of criminal records, on a sound doctrinal footing.

Your Freedom Cannot Be Left to Mathematical Chance

Execution law does not forgive "maybe" or "let's wait and see." A credit request not made today, or an aggregation decision challenged the wrong way, means cold winters behind concrete walls, far from your loved ones.

We serve clients throughout Türkiye, both remotely and in person. Stop wondering "how much will I serve?" Run the basic calculation with the tool on the Turkish page, but for your actual release plan and execution strategy, contact us now.

Remember: the state may lock the prison door, but the force of the law and a well-founded legal intervention can open that lock. For a lawyer's analysis of your file, deferral of execution (on health or education grounds), transfer to an open institution and objections to the sentence calculation notice, contact Att. Mesut İlme without delay. Time keeps running for your freedom or that of your loved ones; turning that time to your advantage is our job.

8. Practical Calculation: Step-by-Step Numerical Example and Legislation Summary

Step-by-Step Numerical Example (10 Years' Imprisonment, Drug Offense, TCK Art. 188)

Sentence imposed: 10 years' imprisonment; offense type: drug trafficking (TCK Art. 188); offense date: 2026; no recidivism, no detention credit. Under Law No. 5275 Art. 107, the conditional release ratio is 3/4:

Total sentence in days: 10 years × 365 = 3,650 days
Time to serve (conditional release): 3,650 × 3/4 = 2,738 days (about 7 years 6 months)
Actual time in closed prison (1/10 rule): 2,738 ÷ 10 = 274 days (about 9 months)
Open prison plus supervised release (1 year): transfer to open prison after the closed period, plus the final year on supervised release. Open prison period = 2,738 − 274 − 365 = 2,099 days (about 5 years 9 months).

Closed prison	Total time to serve (conditional release)	Release on full completion
274 days	2,738 days	3,650 days

Note: The example above is the standard scenario for drug trafficking. Special situations such as recidivism, detention credit, age over 70 or a woman inmate with a child aged 0 to 6 change the ratios. The calculator takes all of these parameters into account automatically.

Law No. 5275: Summary Table of Key Articles

Article	Subject	Practical effect
Art. 9	Execution of imprisonment (closed/open institution)	For inmates over 70, seriously ill inmates and women with a child aged 0 to 6, the conditional release ratio is reduced by 1/10
Arts. 98 to 101	Issuing the sentence calculation notice; aggregation	The enforcement prosecutor prepares the notice; if it is wrong, an objection is filed with the execution judge
Art. 105/A	Supervised release measure	Begins one year before the conditional release date; for some offenses it is 6 months, or it is extended up to 3 years
Art. 107	Conditional release ratios	Ordinary offenses: 1/2 · intentional killing: 2/3 · sexual and drug offenses: 3/4 · terrorism: 3/4
Provisional Art. 10	11th Judicial Package (Law No. 7571, December 2025)	For offenses before 31 July 2023, early supervised release reduced from 5 to 3 years; sexual offenses and domestic violence excluded

Full text: mevzuat.gov.tr, Law No. 5275 · Court of Cassation decision search · General Directorate of Prisons and Detention Houses · Constitutional Court (individual application case law).

Execution Calculation for Sexual Offenses (TCK Arts. 102, 103, 104)

For sexual assault, sexual abuse of a child and sexual intercourse with a minor, the execution regime falls into the strictest category. Both the conditional release ratio and the supervised release periods differ from the general rule:

Conditional release ratio: under Law No. 5275 Art. 107/4, a ratio of 3/4 applies (1/2 for ordinary offenses). For a ten-year sentence, the time to serve rises to 7.5 years.
Supervised release: in sexual offenses the supervised release period is, in some cases, 6 months instead of one year, or it may not apply at all.
Effect of the 11th Judicial Package (December 2025): sexual abuse of a child and basic sexual assault were removed entirely from the three-year early release reduction in Provisional Article 10. Persons convicted of these offenses serve their sentences in full.
Recidivism: since the conditional release ratio for sexual offenses is already 3/4, recidivism (TCK Art. 58) causes no further increase, but the supervised release conditions become even stricter.

Practical example: 8 years' imprisonment for sexual assault (TCK Art. 102): ratio 3/4 = 6 years to serve (2,190 days), NO Provisional Article 10 reduction, and a reduced supervised release period. The calculator applies this special regime automatically.

For more complex situations (the victim's age category, the type of act, aggregation status), book a consultation with a lawyer (in Turkish).

Related Legal Templates (For Information Only)

The template petitions below are provided for general information in line with the advertising rules of the Union of Turkish Bar Associations (TBB). For a specific file, they should be adapted together with your lawyer.

Sample objection petition against a sentence calculation notice: a template petition to the execution judge under Law No. 5275 Arts. 98 to 101.
Sample petition for separation of aggregated sentences: strategy for a separation request after the 11th Judicial Package.
11th Judicial Package Provisional Article 10 interpretation table: the Law No. 7571 amendment, its scope, threshold date and effect.
Application template for the execution judge (in Turkish): the general application process, types of request and a template petition.
Sample criminal appeal petition (in Turkish): challenging the judgment before it becomes final, for the two-week appeal window.
Guide to the regional appeal process (in Turkish): time limits, filing procedure and the Regional Court of Appeal (BAM) process.

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Frequently Asked Questions

How is time to serve calculated?

Time to serve = prison sentence × conditional release ratio (1/2 for ordinary offenses, 3/4 for drug and sexual offenses, 2/3 for intentional killing) − supervised release period. Detention credit, recidivism, age and special circumstances change this calculation. The calculator on the Turkish page applies Law No. 5275 and the 11th Judicial Package instantly.

How did the 11th Judicial Package (Law No. 7571) affect execution periods?

With the 11th Judicial Package, Law No. 7571 (25 December 2025), the Provisional Article 10 reduction fell from five years to three, and sexual assault, sexual abuse of a child, intentional injury of a woman or spouse, and basic sexual assault were excluded from the reduction. The regime specific to repeat offenders was tightened.

What is the mandatory closed prison period (the 1/10 rule)?

Under the law, to be transferred to an open prison and to benefit from supervised release, inmates must actually spend a certain proportion of their sentence (generally 1/10, with good conduct) in a closed penal institution.

How is time to serve calculated for repeat offenders?

For persons who offend again (repeat offenders), the execution ratios are heavier. Depending on the type of offense, the ratio is generally applied as 2/3 or 3/4 instead of 1/2, and supervised release is subject to stricter rules.

How long is served on a life sentence?

Life imprisonment is executed as 24 years under TCK Art. 37. The conditional release ratio is generally 2/3, which means 16 years in prison. Aggravated life imprisonment is executed as 30 years, with a conditional release ratio of 3/4 (22.5 years).

How is detention credit (time already served) calculated?

Detention credit (mahsup) is the deduction of time spent in pretrial detention from the execution of the sentence. For inmates who were under 15 at the offense date, the credit is tripled; for those aged 15 to 18 it is doubled (TCK Art. 31). This multiplier deducts more than the actual detention period from the sentence.

Is there an execution reduction for inmates over 70?

Yes. Under Law No. 5275 Art. 9, the conditional release ratio for inmates over 70 is reduced by 1/10. This means earlier release. The same provision may also apply to seriously ill inmates.

Is there a special rule for women inmates with a child aged 0 to 6?

Yes. Under Law No. 5275 Art. 9, the conditional release ratio is reduced for women inmates with a child aged 0 to 6, and supervised release periods can be extended to four years, except for exceptional offenses.

How reliable is the calculator?

The calculator was prepared according to Law No. 5275, the TCK, the Turkish Civil Code (TMK) and the provisions of the 11th Judicial Package. The results are estimates and do not replace a binding decision of the execution judge. Every file is unique. Consult a lawyer for definitive information.

How is execution calculated for sexual offenses?

For offenses against sexual integrity (TCK Arts. 102 to 105), the execution regime differs from other offenses. The conditional release ratio is generally 3/4, and supervised release periods are more limited. For sexual abuse of a child (TCK Art. 103) in particular, the ratios are heavier still. In the calculator, select the "sexual integrity" offense type to see your detailed execution period.

How long does a person sentenced to 13 years for drug trafficking serve?

For drug trafficking (TCK Art. 188), the execution ratio depends on the offense date. In the period after Law No. 7242, the conditional release ratio is generally 3/4. A person sentenced to 13 years would calculate a conditional release period of roughly 9 years 9 months, depending on recidivism and the offense date; after supervised release is deducted, the net time to serve may be shorter. Use the calculator for a result specific to your situation.

How long does a person sentenced to 12 or 25 years serve?

Net time to serve depends less on the length of the sentence than on the offense type, the offense date and recidivism. A 12-year sentence, for example, gives a conditional release period of 6 years at the 1/2 ratio for ordinary offenses and 9 years at the 3/4 ratio for drug offenses. A 25-year sentence gives 12.5 or 18.75 years at the same ratios. Deducting supervised release shortens the actual time further. Select the offense type and date in the calculator for a personalized result.

My calculation does not match the prosecutor's dates. What should I do?

The calculator applies the rules of Law No. 5275 and the 11th Judicial Package. If you see a difference from the dates in the official notice issued by the prosecutor's office, check the dates line by line on our verification page. If there is a genuine error, an objection can be filed with the execution judge under Law No. 5275 Arts. 98 and 101. For a lawyer's analysis, you can use our Roadmap Report service.

How does recidivism change the calculation?

Recidivism means that a person with a previous final prison sentence commits a new offense. In that case the conditional release ratios increase: for ordinary offenses, the ratio may rise to 2/3 on a first repeat and to 3/4 on a second. Supervised release periods are shortened or may be removed entirely. Recidivism seriously affects the calculation, so a lawyer's execution analysis is recommended.

How long is served on a 12-year sentence? On a 25-year sentence?

As of 2026, a 12-year sentence executed at the 1/2 ratio gives a conditional release period of about six years; one year of that may be spent on supervised release. A 25-year sentence means roughly 12.5 years of actual execution. Offense type, recidivism and age change these periods; use the calculator for a precise figure.

What is the conditional release ratio for repeat offenders?

Under TCK Art. 58, repeat offenders are subject to a special execution regime: the conditional release ratio rises to 2/3 on a first repeat, and 3/4 applies on a second. The supervised release period is shortened and in some cases removed entirely. A detailed analysis report is recommended for an individual assessment.

How does the 11th Judicial Package affect execution periods?

The 11th Judicial Package, Law No. 7571 (in force 25 December 2025), granted through Provisional Article 10 three years of early supervised release for offenses committed before 31 July 2023, but excluded sexual assault, sexual abuse of a child and intentional injury of a woman or spouse from that scope. The calculator reflects this update.

I received a summons to surrender. What should I do? Is my time running out?

A surrender period runs from service of the summons. Within that period you can file an objection to the sentence calculation notice or a request for deferral of execution with the execution judge (Law No. 5275 Arts. 98 to 101 and Law No. 4675). If you miss the deadline, you lose the right. We recommend speaking to a lawyer immediately.

How long does a first-time repeat offender sentenced to 2 years for drug use serve?

Drug use (TCK Art. 191) is in the ordinary offense category; on a first repeat, the conditional release ratio is 2/3. For a two-year sentence, the conditional release period is about 16 months; after supervised release (generally one year) is deducted, the time in closed prison may be a few months. Use the calculator for an exact figure.

When can I move to an open prison?

Transfer to an open prison takes place one year before the conditional release date (before the supervised release period). The ratio is 1/2 for ordinary offenses, 2/3 for intentional killing and 3/4 for drug and sexual offenses. The calculator shows the open prison transfer date in its results.

What is the effect of the 11th Judicial Package on aggregated (multiple) sentences?

If you have a sentence for an offense committed before 31 July 2023 (with a three-year early supervised release entitlement) and a short sentence for an offense after 31 July 2023 is aggregated with it, there is a risk of losing early supervised release for the whole aggregated file (the "virus logic" of the 1st Criminal Chamber of the Court of Cassation). In that situation, a request for separation of the aggregation is a strategic legal step.

Does execution stop during the judicial recess (20 July to 31 August)?

No. The judicial recess (20 July to 31 August) affects court hearings; execution is an ADMINISTRATIVE process and continues during the recess. Sentence calculation notices are issued, summonses are served and surrender periods run. Applications to the execution judge and requests for deferral of execution can also be filed during the recess. If you have received a notification, do not let the period lapse by relying on the recess.

Does the appeal period run during the judicial recess?

In criminal proceedings, as a rule, periods that fall within the judicial recess do not run and are deemed extended by three days from the end of the recess (Code of Criminal Procedure (CMK) Art. 331/4). However, periods relating to cases with DETAINED persons continue to run during the recess. The safest course is to file your application without leaving the time calculation to the recess, so that you do not have to work out which rule applies to you.

Legal Support on the Calculated Period

For sentence calculation, release dates and criminal law advice, you can book an online appointment to discuss your situation with our lawyer.

Related Legal Resources

Our office's services in criminal and execution law, and related content:

Criminal defense lawyer in Yalova (in Turkish): criminal cases and defense representation.
Criminal law guide (in Turkish): a comprehensive guide to the TCK, the CMK and execution legislation.
Deferral of the announcement of the verdict (HAGB) (in Turkish): conditions for deferral and its effects on execution.
Att. Mesut İlme (in Turkish): over 20 years in criminal and execution law, Yalova Bar Association reg. no. 287.
Legal consultation appointment: a meeting with a lawyer about the sentence calculation notice and the execution process.
Current legal articles (in Turkish): up-to-date content on execution, sentence calculation notices and criminal law.

Sentence Execution Calculation 2026: Time to Serve and Conditional Release