Spain's pension system is undergoing drastic changes redefining retirement age, with current regulations gradually increasing the retirement age until 2027. In 2026, the ordinary retirement age will be 66 years and 10 months for those who have contributed less than 38 years and 3 months. If at least this period has been contributed, it is possible to retire at 65 with 100% of the pension.

However, Social Security allows for retirement at 61 with 33 years of contributions, but only under very specific circumstances and conditions. This is known as involuntary early retirement, a modality that permits retiring up to 4 years before the ordinary age due to a forced job termination, such as collective dismissals, objective dismissals, or reasons beyond the worker's control.

To access this regulation, three fundamental requirements must be met: having contributed at least 33 years, with a portion within the last few years prior to retirement; that the job loss occurred for reasons independent of the worker's will (such as objective dismissals, employment regulation files, or company closure); and being registered as a job seeker for a minimum of six months before applying for the pension.

It is important to note that the minimum age is not fixed and depends on the legal retirement age for each case. Although 33 years of contributions allow access to involuntary early retirement, this does not guarantee retirement at 61. Most workers with long contribution histories will approach that age, while others will retire closer to 62 or 63. In practice, 33 years is a minimum requirement, but the actual retirement age varies according to each work history.