Spain leaves you with $4,246 more per year — a 7.4% net advantage over Germany on a $100,000 gross.

Both Germany and Spain operate on a worldwide-income basis, though each country's bracket structure and available regimes produce materially different outcomes. Top statutory rates are close — Germany at 45% vs Spain at 47% — so the outcome turns on bracket structure, social charges, and available regimes rather than the headline rate alone.

On a $100k single-resident employment profile under each country's default schedule, Spain produces the lower effective burden at 38.7% versus 43.0% in Germany — a 4.2 percentage-point gap that compounds to roughly $4,246 of additional take-home annually. Spain's uncapped social-security charge lifts its effective burden above what the bracket schedule alone would imply; Germany's contributions are capped, so high earners there pay a lower marginal social rate on income above the cap. Social-security contributions also differ: Germany charges 20.0% versus 6.3% in Spain, adding a second layer to the effective-rate spread that doesn't show in the income-tax brackets alone.

Spain offers the Beckham Law for qualifying incoming residents; Germany has no equivalent ICP-targeted regime currently modelled — new residents there enter the standard Germany schedule immediately. The Beckham Law runs for up to 6 years from first qualification, giving Spain a meaningful medium-term advantage for eligible movers who plan to stay. Eligibility requires 5+ years of prior non-residency in Spain — the regime is unavailable to returning nationals and anyone who has held Spain tax residency recently. For movers who don't qualify for Spain's Beckham Law, both countries revert to their default progressive schedules, where Germany's lower top rate still gives it a structural edge.