Opens in a new tab

How to bid on public tenders in Spain

Spain runs a largely electronic procurement system in which almost every public tender, national or regional, can be found through one central platform. This guide explains where Spanish tenders are published, which rules apply in 2026 and what a company from another European country needs before it bids.

Where are public tenders in Spain published?

Spanish public tenders are published on the Plataforma de Contratación del Sector Público (PLACSP), which is run by the Ministry of Finance. PLACSP lists seven regions with their own connected platforms (Andalusia, Catalonia, Galicia, Madrid, Navarre, the Basque Country and La Rioja). These regions must still publish their calls for tender and the results on PLACSP, directly or through an automatic link, so it works as a single search point. Contracts above the EU thresholds also appear on TED.

To bid you register as an operador económico (economic operator) and use the platform’s submission tool, which needs the Autofirma application and a recognised electronic certificate. If your foreign certificate is not accepted, the platform’s guide lets you choose “Otros” as identification type and submit without an electronic signature, but recommends signing the documents by other means and telling the contracting authority.

Which rules and thresholds apply to public tenders in Spain?

The main law is Ley 9/2017 de Contratos del Sector Público (LCSP), and utilities follow Royal Decree-Law 3/2020. The EU thresholds from 1 January 2026 are:

Contract type Threshold (excl. VAT)
Works EUR 5,404,000
Supplies and services, central government EUR 140,000
Supplies and services, other authorities EUR 216,000
Supplies and services, utilities EUR 432,000
Social and other specific services EUR 750,000

Below EUR 40,000 for works and EUR 15,000 for supplies and services, contratos menores (minor contracts) can be awarded directly. Since 10 April 2026, Ley 1/2026 sets a minimum reserve of 15% for state contracting bodies: that share of their yearly spending on certain supplies and services is reserved for social initiative special employment centres and work integration companies, and other companies cannot bid on those contracts.

Do foreign companies need classification or ROLECE registration in Spain?

Companies from other EU or EEA countries do not need Spanish clasificación empresarial (contractor classification). It is mandatory for works contracts of EUR 500,000 or more, but Article 78 of the LCSP exempts EU and EEA companies, which prove their solvency as the tender documents require instead.

ROLECE (Registro Oficial de Licitadores y Empresas Clasificadas del Sector Público, the official register of bidders) matters more. Registration is free and is requested through the Ministry of Finance e-office, and its certificates prove your capacity and solvency to every contracting authority. In the procedimiento abierto simplificado (simplified open procedure), used for works up to EUR 2,000,000 and supplies or services below EUR 140,000, bidders must as a rule be registered by the bid deadline, or have applied before it, as long as this does not limit competition. EU and EEA companies may instead prove their capacity and solvency through their home country’s official list of approved operators or by documents sent after ranking. A ROLECE decision can take three months, so apply early if you plan to bid regularly.

Do you need to bid in Spanish?

Yes. Foreign companies must submit documents with an official translation into Spanish, or into the co-official language of the region where the authority is based, such as Catalan or Basque.

In the ordinary open procedure you first submit a declaración responsable (self-declaration) on the DEUC form, the Spanish name for the European Single Procurement Document. Foreign companies also declare that they accept the jurisdiction of Spanish courts. Only the best-ranked bidder then provides full evidence within 10 working days (7 in the simplified procedure) and usually lodges a garantía definitiva (performance guarantee) of 5% of its price excluding VAT. Missing this deadline counts as withdrawing the bid and can cost a penalty of 3% of the tender budget excluding VAT.

What practical requirements apply to foreign bidders in Spain?

Spanish tax rules require any company with tax-relevant activity in Spain to hold a NIF (número de identificación fiscal, tax number), so a foreign company performing a contract will in practice need one.

Before posting staff to Spain, you must notify the labour authority of the region where the work takes place, for example through the online Ley45 portal. Posted workers must get at least Spanish minimum conditions, including pay under the sector collective agreement, and bids that are abnormally low because they breach such agreements must be rejected. Construction firms working on a Spanish site must also be registered in the Registro de Empresas Acreditadas (REA).

Common mistakes and deadlines in Spanish tenders

Submitting a bid means accepting the tender documents without reservations, so adding your own conditions can get you excluded. If you bid alone and also in a UTE (unión temporal de empresas, a temporary joint venture), all your bids are rejected. Correctable defects must usually be fixed within three days.

The recurso especial en materia de contratación (special procurement appeal) must be filed within 15 working days. It is free and covers works above EUR 3 million and supplies or services above EUR 100,000. For these contracts, the contract cannot be signed until 15 working days after the award notice is sent. Appeals against state bodies go to the TACRC (Tribunal Administrativo Central de Recursos Contractuales), while regional and local contracts go to the regional tribunal or to the TACRC where the region has an agreement with it.

Frequently asked questions

Do I need a Spanish company or branch to bid on public tenders in Spain?

No. EU and EEA companies can bid directly and prove their legal capacity through their home country's company register. A UTE with other firms only has to be formally set up if it wins.

Can I submit my bid in English?

Usually not. Bid in Spanish or the region's co-official language unless the tender documents explicitly allow another language.

How much time do I get to prepare a bid in Spain?

Above the EU thresholds, an open procedure gives at least 35 days from sending the notice to the EU Publications Office, which can be cut by five days when bids are submitted electronically. Below the EU thresholds the minimum is 15 days, or 26 for works, and in the simplified procedure at least 15 days, or 20 for works.

Considering a tender in Spain?

TenderEurope works with local specialists who know Spanish public procurement from the inside. They help you find the right tenders, get ROLECE registration and your documents in place, and write the bid in Spanish.