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Dutch tax on your assets in Spain

Living in the Netherlands and still own property, savings or investments in Spain? You have to declare them in Box 3. The Netherlands–Spain tax treaty stops you paying twice on property, but savings and investments stay taxable here. Here's how it works, and a calculator to see what it means for you.

Property in Spain

A house, flat or land in Spain counts in your Box 3 wealth at its value on 1 January. Under the treaty Spain may tax that property, and the Netherlands exempts the share of Box 3 tax that falls on it.

So you usually pay no Dutch tax on it, but you still have to declare it. It also counts when the tax-free allowance is spread over your assets, so your other wealth can be taxed slightly more.

Bank accounts and investments in Spain

Savings, deposits, shares and funds in Spain stay taxable in Dutch Box 3, just like assets here. The Netherlands is your country of residence and keeps the right to tax them.

If Spain withheld tax on interest or dividends, it's credited against the Dutch tax on that slice, up to that Dutch tax and the rate the treaty allows.

Converting and declaring

Convert amounts to euros at the exchange rate on 1 January of the tax year. Keep a year-end statement from the bank or broker and a valuation of any property.

Many countries automatically share account information with the Belastingdienst. If you left foreign assets out in earlier years, correcting it voluntarily usually means a lower fine than if the Belastingdienst finds it first.

Money from family in Spain

Gifts from parents or relatives living in Spain are not subject to Dutch gift tax, unless the giver is a Dutch national who left the Netherlands less than 10 years ago. From the next 1 January the money does count in your Box 3.

What Spain itself taxes

  • A Spanish home you own as a non-resident costs IBI (municipal property tax) and non-resident income tax (IRNR) every year, even when it stands empty: Spain taxes a notional rent on it. If you let it, the actual rent is taxed instead.
  • When you sell, the buyer withholds 3% of the price as an advance on your Spanish capital gains tax, which you settle with a non-resident return.

Your accounts and products in Spain

  • Spanish bank accounts and deposits count as savings in Box 3, funds and shares as investments. Spanish banks share account data with the Belastingdienst automatically.
  • A Spanish plan de pensiones is generally treated as a pension right rather than Box 3 wealth; cashing it in while you live here is taxed in the Netherlands.

Common situations

  • Inheriting from parents who lived in Spain: there is no Dutch inheritance tax when the person who died lived abroad (unless they were a Dutch national who left the Netherlands less than 10 years before). What you inherit counts in your Box 3 from the next 1 January.
  • Own a holiday home in Spain from the Netherlands? It counts in Box 3 (relief applies), and Spain taxes it each year through IRNR: the two are separate and both apply.

Worked example (2026)

You live in the Netherlands, single, with € 50.000 in a Dutch savings account. In Spain you own a home in Alicante worth € 180.000 and € 10.000 in a Spanish savings account.

Box 3 tax on everything€ 3.262
Treaty relief for the home− € 2.926
Box 3 tax you pay€ 336

The home still raises the tax a little: it counts when the tax-free allowance is spread over everything you own. The tax Spain levies on the home itself comes on top. Sources: belastingdienst.nl, agenciatributaria.es.

Keep calculating

General information based on Dutch treaty practice for Box 3. Your own situation may differ; have foreign assets checked by an adviser if in doubt.