How Many Times Can You Sit a Spanish Oposición?

For the vast majority of corps and scales in the Spanish public administration, there is no legal limit on how many times you can sit an oposición. You can present yourself to every new convocatoria for the same post as many times as you like, provided you still meet the requirements set out in that call, such as the qualification and any age limit. The administration does not keep a record that counts your previous attempts or penalises you for having tried before; each new convocatoria starts from zero for every candidate.

That said, “no limit” does not mean “no constraints.” Two requirements can effectively cap how many times you get to try: the age window some posts set, and the specific qualification the convocatoria demands.

Why most oposiciones have no attempt limit

The legal basis for access to public employment in Spain, the TREBEP, ties eligibility to objective conditions, primarily nationality, age and qualification, not to a candidate’s exam history. Since selection is meant to be decided purely by mérito y capacidad in each specific process, building in a cap on attempts would contradict that principle: it would exclude someone from a fair chance at a given convocatoria for reasons unrelated to their performance in it.

Each cuestionario, each supuesto práctico and each nota de corte is scoped to that single convocatoria. There is no “saved score” carried over from a previous attempt in the overwhelming majority of processes; if you don’t clear every eliminatory exercise this time, you start the next convocatoria’s exam from the same starting line as everyone else.

Where an age limit does cap your attempts

Some corps, mostly in security and armed forces, set a maximum age for entry. Guardia Civil’s Escala de Cabos y Guardias, for instance, requires candidates to be within a specific age range at the time set by the convocatoria. Once you age out of that range, you are no longer eligible for that specific scale, which functionally ends your ability to keep attempting it, regardless of how many times you tried before.

Policía Nacional’s Escala Básica sets a minimum age of 18 with no fixed upper limit stated by the corps itself as of the current convocatoria, though age relaxation rules can apply to some categories. Checking your own numbers against the current bases is worth doing early, and the age calculator on this site can help you work out where you stand against a given cut-off date.

Does a change in qualification requirement affect repeat attempts?

Occasionally. If a convocatoria updates its required titulación between calls, for instance moving a minimum requirement, a candidate who qualified under a previous convocatoria’s rules could, in principle, find themselves ineligible under a later one, though this is uncommon for stable corps with long-standing requirement structures like the ones on this site.

The more common practical issue is candidates confusing the qualification for one group with another. Understanding the A1, A2, C1 and C2 group system clears up why your degree or diploma may or may not open the door to a given oposición at all.

What repeated attempts are actually worth

Since there is no penalty for trying again, the real question is what you should be doing between attempts. Passing an exam but ranking below the nota de corte often puts you on a bolsa de trabajo, so an unsuccessful attempt at the fixed plaza is rarely wasted effort in a concurso-oposición process, since it can lead to temporary work and to merits that boost your score next time. Deciding how long to keep trying before switching strategy is a fair question too; see how long it typically takes to reach a competitive level for setting realistic expectations about the study horizon involved.

Frequently asked questions

Is there any Spanish oposición with a fixed attempt limit? Very few. Most corps place no cap on the number of convocatorias you can sit; where a limit exists, it is almost always an indirect effect of an age ceiling rather than a stated cap on attempts.

Do I have to reapply from scratch for every convocatoria? Yes. Each convocatoria requires a new application (instancia) and, in most processes, a new exam, since scores do not carry over between separate calls.

Does failing an oposición affect my chances in future calls? No, the administration does not penalise repeat candidates, and a tribunal grading a new convocatoria has no visibility into your past results in a prior one.

Can age relaxation extend how long I have to keep trying? In some corps, yes; certain categories such as veterans or people with specific circumstances can benefit from an extended age limit set out in the convocatoria, which effectively lengthens the window you have to keep attempting.

If I pass but don’t get a plaza, does that count against a future attempt? No, and it can actually help: passing without a plaza typically places you on the corresponding bolsa de trabajo and can add merits for a future concurso-oposición attempt at the same corps.