Having recently moved to Spain, I’ve been diving into the tax system and it’s quite overwhelming. The infamous ’millionaire’s tax’—also known as the wealth tax—is particularly confusing for many, who are unsure if they need to pay it or how to do so. I’ve spent some time digging through information and have put together this guide to share with you, focusing on the real estate component which is most relevant to us. I hope it helps others who are just as confused.
What is Wealth Tax?
Simply put, wealth tax is a tax levied on the total net assets you own in Spain. It is a state-level tax, but its collection and management are delegated to the autonomous communities. This means that the tax-free allowance, rates, and deductions vary by region, which is what makes it so complicated. The tax is calculated on your total personal net worth as of December 31st each year. So, don’t think about selling property at the end of the year to avoid it; the date is fixed.
How is Property Value Calculated for Wealth Tax?
For most of us, property is our largest asset. So, when calculating wealth tax, which value is used for your property? The tax agency will use the highest of the following three values:
- Cadastral Value (Valor Catastral): You can find this on your local property tax (IBI) bill.
- Reference Value (Valor de Referencia): This is a new reference price introduced in 2022, which can be checked on the Cadastre’s official website.
- Purchase Price: The price stated in your property purchase contract.

Regional Allowances and Deductions
Once you know how your assets are valued, the next step is to see if you exceed the tax-free allowance. The standard national allowance is €700,000. However, as mentioned, each autonomous community has its own rules. For example, in the communities of Madrid and Andalusia, although you still have to file, they offer a 100% tax credit on the Spanish Wealth Tax, which is effectively a full exemption! In contrast, Catalonia has a lower allowance of only €500,000. I’ve created a simple table below listing a few key regions:
| Autonomous Community | General Allowance | Primary Residence Allowance | Tax Credit |
| National Standard | 700,000 | 300,000 | None |
| Madrid | 700,000 | 300,000 | 100% |
| Catalonia | 500,000 | 300,000 | None |
| Valencia | 500,000 | 300,000 | None |
| Andalusia | 700,000 | 300,000 | 100% |
In addition to the general allowance, there’s another crucial deduction: your primary residence is exempt up to €300,000. For example, let’s say your only asset is a primary residence in Madrid valued at €800,000, with no other assets or liabilities. When calculating your Spanish wealth tax, your taxable base would be €800,000 - €300,000 = €500,000. Since this amount is below Madrid’s general allowance of €700,000, you wouldn’t owe any wealth tax. Even if it were over, Madrid’s 100% tax credit means you still wouldn’t pay anything. However, the situation is different in Catalonia, where any amount exceeding its €500,000 allowance would be taxed according to a progressive scale.
The wealth tax is genuinely complex, and everyone’s situation is different. If you have significant assets or a complicated financial profile, it’s highly recommended to consult a professional tax advisor (asesor). For the average person, it’s enough to understand the basics—knowing when you might need to file and pay gives you peace of mind. Feel free to discuss this in the comments, and please correct me if I’ve made any mistakes!