What is the difference between the EU Blue Card and Spain’s Highly Qualified Visa (HQP)?

Both are designed for skilled workers, but the EU Blue Card offers EU-wide mobility and a clear path to long-term EU residence. The HQP visa is specific to Spain, usually has lower salary requirements, and may be faster to obtain.Blue Card offers EU-wide mobility, stricter salary threshold; HQP is easier/faster for Spain only, lower salary bar.