When someone stops being registered as actively working (due to unemployment without benefits, a leave of absence, or other circumstances), they can lose the ability to keep building rights toward their future pension. The special agreement with Social Security exists precisely to prevent that loss, by allowing people to keep contributing voluntarily.
What the special agreement is
It's a voluntary agreement with the General Treasury of Social Security that allows certain people who are no longer under a mandatory work-registration status to keep contributing on their own, maintaining the continuity of their contribution record for future benefits — mainly the retirement pension.
Who can sign one
There are several types of special agreement, each designed for a specific situation: people who stop being required to contribute after exhausting unemployment benefits without finding work, caregivers of dependent people, emigrants returning to Spain, or workers who leave the labor market before retirement age under certain circumstances, among other specifically regulated cases.
How the fee is calculated
The special agreement fee is generally calculated by applying a set contribution rate to a contribution base that the person can choose within certain limits, usually related to their average contribution base over a recent period before the situation that triggered the agreement. Unlike an active worker's contributions, under the special agreement the person signing up bears the entire fee themselves, with no employer contribution.
What it covers and what it doesn't
The special agreement generally covers retirement, permanent disability, and death and survivorship (which gives rise to widow's and orphan's pensions), but, except in specific variants, it doesn't grant rights to benefits such as unemployment or temporary disability, which fall outside its usual coverage.
When signing one can be worth it
Signing a special agreement makes sense mainly when you're close to completing the number of contribution years needed to maximize the percentage applied to your future pension, and you expect a prolonged period without work activity that, if not covered by the agreement, would leave a gap in your contribution record.
How to weigh whether the cost is worth it
Before signing up, it's worth calculating the total cost of the agreement over the period you expect to need it, and comparing it with the expected benefit to your future pension from maintaining that contribution continuity, since in some cases the cost may not be worth the marginal benefit gained in the final pension.
Estimate the impact on your future pension
Our retirement pension calculator lets you get an approximate estimate of how your contribution years affect your future pension — useful as a reference when weighing whether maintaining contribution continuity through a special agreement makes sense in your case.