Accumulation of Sentences in Spain (Art. 988 LECrim): 2026 Guide

The legal accumulation of sentences governed by Art. 988 LECrim is, in many cases, the institution that separates a life behind bars from a recovery of liberty in a reasonable time. As criminal lawyers experienced in the enforcement of multiple sentences, we explain how it works in 2026 and how to request it.

The Institution of Art. 988 LECrim

When the same convicted person has several sentences for different offences, Art. 988 LECrim allows them to be legally merged under a maximum enforcement penalty. It is not an arithmetical addition: it applies the limits of Art. 76 CP to avoid effectively perpetual sentences. Its basis lies in the principles of the humanity of penalties, social reintegration (Art. 25.2 of the Constitution) and proportionality.

The Triple of the Greatest and the Limits of Art. 76 CP

Art. 76 CP establishes two concurrent rules: the triple-of-the-greatest rule (the maximum effective enforcement will be three times the most serious penalty imposed) and an absolute limit. The absolute maximum limits are:

• 20 years: the general rule.
• 25 years: if any of the offences has a legally provided penalty over 20 years.
• 30 years: if two or more offences have a penalty over 20 years.
• 40 years: qualified cases of terrorism or criminal organisation.

This benefit is not optional: it is mandatory for the sentencing court.

Supreme Court Doctrine: Connection and Accumulation

• Flexible chronological criterion: offences committed before the date the first conviction became final are accumulable, even if tried separately.
• Procedural, not substantive, connection: substantive connection (offences of the same type) is not required; it is enough that they could have been tried in a single process.
• Inclusion of euro-judgments: following Framework Decision 2008/909/JHA, convictions delivered by courts of other EU Member States can be accumulated with the Spanish ones if they meet the chronological criterion.

A correctly framed accumulation can reduce enforcement by years of actual imprisonment.

Procedure: Standing, Jurisdiction and Appeals

• Standing: the convicted person (through their defence), the public prosecutor or the court of its own motion.
• Competent body: the last sentencing body that delivered the most recent final judgment.
• Processing: a reasoned order, after hearing the prosecutor and the convicted person.
• Appeals: the accumulation order is open to cassation, on the grounds of Art. 849.1 LECrim.

The resulting effective penalty is the basis for calculating the time limits for third grade and parole.

Euro-Judgments and Prison Benefits

Framework Decision 2008/909/JHA, transposed by Law 23/2014, opened the door to the accumulation of euro-judgments. The maximum penalty resulting from the accumulation is the basis for all prison benefits: progression to third grade, leave permits and parole. An accumulation that reduces the penalty from 40 to 20 years allows, in practice, access to third grade at 10 years instead of 20.