Spain's employer Social Security cost is a fixed 30.65% rate, unusually simple compared to Germany's four separately-capped schemes or France's ten-line charges patronales, but it only applies up to a maximum contribution base that's revised every year. For most salaries, that's the whole story: 30.65% plus a variable accident-insurance premium, done.
What changed in 2025 is what happens above that base. Historically, earnings above the cap simply stopped accruing Social Security contributions entirely, a real saving for employers of senior staff. The new solidarity contribution claws some of that back, at a lower rate than the main 30.65%, but it's no longer zero. This is a genuinely new mechanic, not yet widely reflected in older employer-cost guides.
One more detail worth tracking: the MEI contribution (0.75% of the 30.65% total for 2026) is legislated to keep rising every year through 2029. A calculator built on last year's rate would already be slightly out of date, this one uses the confirmed 2026 figure.