A worker in Spain who remains medically unable to work does not have to return simply because 18 months of medical leave have passed. The 545-day threshold marks the end of the ordinary temporary-incapacity period and the start of an assessment by the Instituto Nacional de la Seguridad Social (INSS). The absence of a new appointment or notification is not proof of recovery: a return-to-work obligation depends on an official medical or administrative decision, not simply on the passage of time.
Under the General Social Security Law, temporary incapacity arising from common or occupational illness, as well as accidents that are work-related or not, may last up to 365 days. If recovery is expected, the INSS can extend the period by up to 180 days, bringing the ordinary maximum to 545 days, roughly 18 months. Temporary incapacity and permanent incapacity are distinct legal categories. Permanent incapacity requires an assessment of lasting limitations and their effect on a worker’s occupation or ability to work.
After 545 Days: Waiting for a Decision
At the 545-day limit, ordinary temporary incapacity ends, but the case does not automatically lead to a return to work or a finding of permanent incapacity. The INSS must assess whether to issue a medical discharge, recognize permanent incapacity, or continue the assessment in circumstances allowed by law. The effects of temporary incapacity may continue while that determination is made; this is not an automatic declaration of permanent disability.
Payment arrangements may also change. Depending on the worker’s case and coverage, payment may shift from the employer-managed arrangement to direct payment by the INSS or the relevant collaborating mutual insurer. That is an administrative change, not evidence that the worker has been medically cleared. Employees should watch for communications and attend required medical examinations. Unjustified failure to do so can expose benefits to suspension or termination.
Three Possible Outcomes from the INSS
The INSS has up to 90 days to examine the worker’s situation after the 545-day maximum is reached. It may clear the worker to return or recognize a degree of permanent incapacity; where the law allows, it can continue the assessment. The 90-day period is a decision timetable, not a guarantee that every case will receive an immediate final resolution. The combined period of temporary incapacity and any authorized extension cannot exceed 730 days from the original sick-leave date.
Employment Status and Company Obligations
During the 90-day review period and any authorized extension, employers are no longer required to make Social Security contributions for the affected worker. The employment contract does not automatically end when the 545-day period is exhausted. Companies may notify Social Security of the situation or issue a final settlement of outstanding payments, but these actions do not constitute dismissal unless there is clear evidence of an intention to terminate the contract. The Spanish Supreme Court has clarified that a severance payment or notification alone is not enough to prove a tacit dismissal. At this stage, the decisive medical-discharge determination belongs to the INSS, not the employer. A worker may challenge an official decision through the applicable procedures and within the relevant deadlines.
Financial and Legal Uncertainty
For many, the waiting period brings financial and legal uncertainty. Payments may be delayed or change in amount, while the worker’s future employment status remains unclear. As one recent case involving a long-serving self-employed worker highlights, the Spanish social security system can leave individuals in a precarious position even after decades of contributions.
Workers should stay alert to official notifications from the INSS or their mutual insurer. Until a formal decision is issued, reaching 545 days alone does not mean a worker has been cleared to return. The outcome depends on the INSS’s decision and the worker’s medical and occupational circumstances.
