How Spain's regional tax system works
Each autonomous community can set the rates and brackets for their portion of the IRPF. The central government sets the national tranche (approximately half the total rate); the region sets the other half. Madrid has historically maintained lower regional rates, making it the most tax-efficient Spanish region under standard IRPF — which is one reason it attracts high-net-worth individuals and large companies. Cataluña, Andalucía, Valencia, and the Basque Country each have distinct rate structures.
This matters for Spanish residents paying ordinary progressive rates. It does not matter for Beckham Law holders. Under the special expatriate regime, income is taxed at a flat 24% on a national basis — the regional tranche simply doesn't apply. A Digital Nomad Visa holder paying Beckham Law rates in Barcelona pays exactly the same rate as one paying in Madrid.
What the Basque Country and Navarra are different
The Basque Country (País Vasco) and Navarra have special economic agreements (concierto económico and convenio económico respectively) that give them even greater fiscal autonomy — they collect their own taxes and transfer a portion to the central government. Tax rules in these regions differ somewhat from the rest of Spain. For Digital Nomad Visa holders under Beckham Law, the practical impact is limited, but any Basque Country-specific tax advice should come from a professional familiar with the local regime.
For Digital Nomad Visa holders: the bottom line
If you elect Beckham Law, choose your city based on lifestyle, cost of living, community, and logistics — not tax rates. The regional difference is neutralized by the regime. If for any reason you are not electing Beckham Law (lower income, certain freelancer structures that complicate the election), city choice carries more tax weight, and a Madrid address does produce a somewhat lower standard IRPF bill than an equivalent Barcelona address at higher income levels. The Beckham Law guide explains the election process; the cities guide covers the lifestyle tradeoffs.
No. Beckham Law's 24% flat rate is a national rate that applies uniformly regardless of which region you live in. The regional IRPF variation that makes Madrid's standard tax rates lower than Cataluña's has no effect on Beckham Law holders. The regime was specifically designed to apply nationally.
For Beckham Law holders, no — the regional variation doesn't apply to you. For people who are not on Beckham Law and are paying standard progressive IRPF rates, the difference between Madrid (bottom bracket additions are lower) and Cataluña (higher top rates) can be meaningful at high income levels. But for Digital Nomad Visa holders who qualify for and elect Beckham Law, city choice is a lifestyle and logistical decision, not a tax optimization one.