Tipping in Madrid remains a gesture of appreciation rather than a mandatory obligation in 2026. For a standard group walking tour or a "Free Tour," a tip of €5 to €10 per person is considered the respectful norm if the experience was high quality. For a more intensive, full-day private guide, a tip of €20 to €40 for the group is appropriate, though many locals would say 10% of the total tour cost is a generous ceiling. It is important to distinguish between freelance guides and official museum employees; those working for the government in places like the Prado often cannot accept tips. In 2026, Madrid has seen an increase in digital tipping through QR codes, but cash is still the preferred method for tour guides. Unlike the 20% standard in the U.S., a tip in Spain is truly a "propina"—a small token for service that went above and beyond. If the guide was mediocre or just going through the motions, a simple "Gracias" is socially acceptable without any financial gratuity.