By contributing to this, you will be entitled to the same level of protection as all nationals. It is paid mainly for by workers’ contributions (currently around 6.4% of the monthly salary), but the state also contributes around 20%. Coverage under Spanish Social Security legislation generally means that you are exempt from making contributions to your country of origin; However, agreements between Spain and other EU/EEA countries allow nationals of these countries and residents of Spain to continue to be part of their national Social Security system for a limited period.
You may also be asked to provide copies of some or all of the above translated in Spanish; Check if this is the case with the Social Security office in your area.
After one or two months, you will receive a registration card (social security/SIP card) by mail. Keep in mind that a card will provide coverage for both spouses in a marriage even if only one of them is working and for all dependent children (under 16) who are registered on the card.
If you are a pensioner, you will qualify for social security benefits if you receive a state pension from another EU/EEA country, or a country that has an agreement with Spain. You and your spouse will be entitled to the benefits, but you must prove your right to a pension by obtaining form E-121 from your country of origin.
If you retire to Spain before reaching the Spanish retirement age, you must obtain private medical insurance coverage.