Fiscal representative in Spain: meet your tax obligations without leaving your country

The legal obligation to appoint a fiscal representative

Article 47 of Ley 58/2003, de 17 de diciembre, General Tributaria (General Tax Act) establishes that taxpayers not resident in Spain must appoint a representative with residence in Spanish territory where expressly required by the regulations governing each tax, or where required by the tax administration. This is not a recommendation: it is a legal obligation whose breach can carry serious consequences.

The obligation is of particular importance in the context of the Impuesto sobre la Renta de No Residentes (IRNR — Non-Resident Income Tax), governed by the consolidated text approved by Real Decreto Legislativo 5/2004. The IRNR regulations expressly establish the obligation to appoint a representative for non-resident taxpayers, except in cases of income paid by withholding agents who are themselves obliged to withhold, where the obligation may not be directly enforceable but is in practice necessary for the effective management of the relationship with the AEAT.

The representative acts as the formal link between the non-resident taxpayer and the Spanish tax administration. They receive on the taxpayer’s behalf all notifications, are responsible for ensuring filing obligations are met on time, and may be required by the AEAT to provide additional information. Their designation is communicated to the AEAT through a written communication or through the declaration form itself.

Who needs a representative and why

The most common scenarios in practice for fiscal representation in Spain cover several distinct profiles:

Non-resident property owners: the most frequent case. A German, French, Dutch, or British citizen who owns an apartment on the Spanish coast has IRNR obligations regardless of whether they let it out or not. If the property is at their disposal and is not rented, they are taxed on imputed property income (1.1% or 2% of the cadastral value, depending on whether the value was revised in the last ten years). If they rent it out, they are taxed on the rental income. In both cases, filing the Modelo 210 is mandatory.

Post-Brexit UK nationals: since 1 January 2021, UK nationals have lost the favourable tax treatment they had as EEA citizens. Those who purchased property in Spain as EEA residents and now live in the United Kingdom must adapt their tax position to the new framework, including the formal appointment of a fiscal representative.

Companies without a permanent establishment (establecimiento permanente): a foreign company providing services to Spanish clients without an office, branch, or permanent establishment in Spain may have IRNR or VAT obligations (in which case it would need a VAT representative). The determination of whether a permanent establishment exists is a technical question requiring specific analysis.

Non-resident heirs of assets in Spain: when a person with assets in Spain dies and their heirs reside abroad, those heirs must settle Inheritance Tax before the relevant regional administration and frequently need to appoint a fiscal representative to manage the process.

IRNR tax obligations for property owners

The non-resident owner of a property in Spain has, at a minimum, an annual obligation to file the Modelo 210 IRNR return. The content and amount depend on the situation of the property:

Property not rented out: the law imputes an annual income of 2% of the cadastral value of the property (or 1.1% if the cadastral value was revised or updated in the last ten years). The applicable IRNR rate is applied to that imputed income: 19% for residents in the EU/EEA and 24% for residents in third countries. The return is filed on Modelo 210 between 1 January and 31 December of the year following the tax year being declared.

Property rented out: rental income is taxed at 19% (EU/EEA residents) or 24% (third-country residents) on the net return. EU/EEA residents may deduct expenses directly related to the property (community fees, IBI property tax, insurance, depreciation); third-country residents are taxed on gross income without deduction of expenses. The return may be filed quarterly or on an accumulated annual basis.

Property sale: the capital gain obtained on the transfer of a property in Spain is subject to IRNR. The buyer is legally required to withhold 3% of the sale price and pay it to the AEAT on Modelo 211, on account of the seller’s capital gains tax. The non-resident seller must file Modelo 210 to declare the actual gain and, where appropriate, obtain a refund of any excess withheld.

The risk of not having a representative

The absence of a fiscal representative does not make the taxpayer invisible to the AEAT. The Spanish tax administration holds information on registered properties (from the Land Registry and notaries), on income and withholdings (from withholding agent declarations), and on international transactions (from automatic information exchange between EU tax administrations and countries with mutual assistance treaties).

When the AEAT cannot locate the taxpayer because they have no appointed representative, notifications are served by publication in the Official State Gazette (BOE). The taxpayer has ten business days from publication in the BOE to appear and collect the notification. If they do not appear, the notification is deemed served and deadlines begin to run. The typical result is that the taxpayer discovers months or years later that they have final assessments, enforcement surcharges, and in some cases charges over the property itself.

Voluntary regularisation: correcting years without filing Modelo 210

A frequent practical situation is the non-resident property owner who has not filed Modelo 210 for several years — sometimes because they were unaware of the obligation, sometimes because nobody explained it when they bought the property — and who wishes to regularise before the AEAT detects it. In this scenario, the correct approach is to file the returns for the years not yet statute-barred on a voluntary basis, before receiving any requirement.

The tax limitation period in Spain is four years, counted from the day after the filing deadline for each return. For IRNR on imputed income for the 2021 tax year (whose deadline expired on 31 December 2022), the limitation period will be reached on 1 January 2027. After that date, the AEAT cannot assess that year. The limitation period operates year by year, so each year becomes statute-barred independently.

Voluntary filing of late returns without a prior AEAT requirement gives rise only to late-filing surcharges (artículo 27 de la Ley General Tributaria), the amount of which depends on the time elapsed since the filing deadline: an additional 1% for each full month of delay, with a maximum of 15% after one year, plus the corresponding late-payment interest. No penalties apply when the filing is spontaneous. If, on the other hand, the AEAT initiates an audit before the taxpayer regularises, penalties can range from 50% to 150% of the unpaid liability, in addition to interest.

BMC manages regularisation processes for non-resident property owners with outstanding Modelo 210 years, including calculation of amounts due, filing of returns, and negotiation of deferred payment if the total amount regularised is substantial. Request a no-obligation quote — see our fee structures.

Double taxation treaties: impact on non-resident taxation

Spain has an extensive network of double taxation treaties (CDI — convenios de doble imposición) with more than ninety countries. These treaties, which take precedence over domestic law under Article 96 of the Constitution and Article 7.1 of the General Tax Act, can reduce or modify the IRNR rates applicable to non-residents.

The most frequent impact of CDIs in the fiscal representative context arises in two situations: property rental income and capital gains from property transfers. In both cases, the CDI generally attributes taxing rights to the state where the property is located (Spain), but may establish a maximum withholding or tax rate lower than the general 24% rate.

For residents in countries without a CDI with Spain, the general IRNR rate is 24%. For residents in countries with a CDI, the applicable rate may be lower, but the reduction requires proof of tax residence in the relevant country by means of a tax residence certificate (certificado de residencia fiscal) issued by the tax authorities of the country of residence. Without this certificate, the AEAT may apply the general rate. BMC manages the obtaining and presentation of tax residence certificates that allow application of the reduced CDI rates.

The role of the fiscal representative in property sale transactions

The sale of a Spanish property by a non-resident owner gives rise to a particularly important representation obligation. The buyer of the property is legally required to withhold 3% of the sale price and pay it to the AEAT as a withholding on account of the non-resident seller’s IRNR (Modelo 211). This withholding applies in all cases, regardless of whether a gain or loss has been made.

The non-resident seller has three months from the date of transfer to file Modelo 210 for capital gains, declaring the actual gain or loss. If the actual gain is less than the 3% withholding, the seller is entitled to a refund of the excess. If the actual gain exceeds the withholding, the difference must be paid. In the event of a loss, a full refund of the withholding may be claimed.

Correct IRNR settlement on property transfers requires documenting the acquisition value (purchase price plus acquisition costs and taxes), the transfer value (sale price less transfer costs attributable to the seller), and any applicable indexation coefficients. An incorrectly calculated settlement can result in over-taxation or a refund lower than that to which the seller is entitled. The fiscal representative ensures that these calculations are made correctly and that the supporting documentation is filed in the proper form and within the relevant deadlines.