Location guide · Spain

Custom ERP, AI Agent & SaaS Development in Spain

Location guides for 7 cities in Spain, from Madrid, Barcelona and Valencia. Flip Retail builds custom ERP, AI agents, web applications and SaaS for businesses in Spain from Jaipur, India, and delivers remotely.

City guides
7
Jaipur time is
4 h 30 min aheadStandard time
Currency
Euro (EUR)
Indirect tax
VAT 21%
E-invoicing
Phasing inVeriFactu
Data protection
GDPR

01 — Compliance

Rules your software must follow in Spain

Tax, e-invoicing, data-protection and AI rules that shape an ERP, billing system or AI agent in Spain. Last reviewed October 2026.

Indirect taxVAT (IVA), standard rate 21%Standard rate 21% with reduced rates of 10% and 4%; most businesses file quarterly Modelo 303 returns, while large companies file monthly and report invoices via SII. The Canary Islands (IGIC), Ceuta and Melilla are outside the Spanish VAT territory.
E-invoicingPhasing in · VeriFactu; SII; B2B e-invoicing via AEAT public solution or private platforms (UBL, CII, EDIFACT, Facturae); FACe for B2GVeriFactu-compliant invoicing software becomes mandatory from 1 Jan 2027 for corporate-tax payers and 1 Jul 2027 for other businesses, and under Order HAC/1028/2026 (published 5 Oct 2026) domestic B2B e-invoicing becomes mandatory from 6 Oct 2027 for businesses with prior-year turnover above €8 million and from 6 Oct 2028 for all others. Large companies (turnover above €6 million) already report invoice records near-real-time via SII.
Data protectionGDPR plus Organic Law 3/2018 on Personal Data Protection and Guarantee of Digital Rights (LOPDGDD)GDPR applies directly, supplemented by Organic Law 3/2018 on Personal Data Protection and Guarantee of Digital Rights (LOPDGDD) and supervised by the AEPD; B2B buyers expect an Art. 28 data processing agreement, a sub-processor list and, in practice, EU/EEA hosting or SCC-covered transfers.
AI rulesThe EU AI Act applies directly: prohibited AI practices have been banned since 2 Feb 2025, general-purpose AI model rules apply since 2 Aug 2025 and transparency duties (e.g. chatbot disclosure, AI-content labelling) since 2 Aug 2026, while the Digital Omnibus on AI (in force 27 Jul 2026) moved stand-alone high-risk (Annex III) obligations to 2 Dec 2027 and product-embedded high-risk (Annex I) obligations to 2 Aug 2028; Spain has created a dedicated AI supervisor, AESIA (Agencia Española de Supervisión de la Inteligencia Artificial).
Systems we migrate from or connect toHolded, Wolters Kluwer a3, Sage, Odoo, Quipu, SAP Business OneMasters, ledgers, stock and open balances move across and are reconciled before cutover.
Payment rails for web apps and SaaSBizum, Redsys card payments, SEPA Direct Debit, Stripe, Adyen, PayPal
Also worth knowingThe Basque Country and Navarre run their own TicketBAI invoicing regimes instead of VeriFactu, and B2G invoices go through FACe in Facturae format. Software vendors must issue a statement of conformity (declaración responsable) for VeriFactu-compliant billing systems.

General information, not legal or tax advice. Rules change, so we confirm current requirements during discovery; your tax adviser should confirm anything that affects filings.

Sources consulted:

02 — Cities

7 city guides in Spain

Each guide covers the local economy, the industries we would build for first, and how working with Jaipur fits your hours.

Andalusia

  • MálagaTourism & hospitality, Technology & startups
  • SevilleTourism & hospitality, Aerospace & defence supply chain

Aragon

  • ZaragozaLogistics & ports, Automotive & auto components

Basque Country

  • BilbaoSteel & metals, Energy, oil & gas

Catalonia

  • BarcelonaTourism & hospitality, Automotive & auto components

Community of Madrid

  • MadridFinancial services & fintech, Construction & building materials

Valencian Community

03 — Industries

Industries we would build for in Spain

The industries that come up most across the cities we cover in Spain.

Tourism & hospitality

ERP
Kitchen and outlet inventory with recipe costing, multi-property purchasing, and reconciliation of bookings, channel commissions and payments.
AI agent
A guest-messaging agent that answers enquiries, handles booking changes and suggests upgrades in the guest's language, around the clock.
Portal or app
Direct-booking websites, itinerary builders and B2B portals for travel agents.
Software for tourism & hospitality

Automotive & auto components

ERP
Customer schedules turned into production plans, lot and heat-number traceability from raw material to dispatch, and the packing, labelling and advance-shipping-notice rules each customer demands.
AI agent
An agent that reconciles customer schedules, goods-receipt notes and debit notes every day and flags mismatches before they become payment disputes.
Portal or app
A supplier portal where tier-2 vendors confirm schedules, upload inspection reports and see payment status.
Software for automotive & auto components

Construction & building materials

ERP
Project-wise material budgets and consumption, site stores and subcontractor billing; and for material makers and traders, dealer networks, schemes and freight-inclusive pricing.
AI agent
An agent that reads site reports and delivery challans, matches them to purchase orders and flags over-consumption against the bill of quantities.
Portal or app
A site app for material requests, daily progress photos and labour attendance.
Software for construction & building materials

04 — Services

What we build for businesses in Spain

03

AI agent development

Custom AI agents that do real work inside your business: qualify leads on WhatsApp, read and key documents, take orders, chase payments and update your ERP or CRM, with a person approving anything that matters.

Learn more
04

Web application development

Customer portals, internal tools, dashboards, marketplaces and workflow apps, built with React and Next.js on solid back ends and APIs, and shipped in two-week increments you can use as they are built.

Learn more
05

SaaS product development

From MVP to multi-tenant platform: we design, build and run SaaS products with subscription billing, tenant isolation, role-based access and AI features built in.

Learn more

05 — FAQ

Custom software in Spain: common questions

Do you work with businesses in Spain?

Yes. Flip Retail is based in Jaipur, India, and works with Spain businesses remotely. We have no office in Spain; discovery happens on video calls, you get working software every two weeks, and the engineers who write the code are on the calls.

Can a custom ERP handle VAT and e-invoicing in Spain?

Yes. Invoicing is built for Spain's VAT (standard rate 21%). VeriFactu-compliant invoicing software becomes mandatory from 1 Jan 2027 for corporate-tax payers and 1 Jul 2027 for other businesses, and under Order HAC/1028/2026 (published 5 Oct 2026) domestic B2B e-invoicing becomes mandatory from 6 Oct 2027 for businesses with prior-year turnover above €8 million and from 6 Oct 2028 for all others. Large companies (turnover above €6 million) already report invoice records near-real-time via SII. A custom ERP connects to VeriFactu through its official API or an accredited provider, and we confirm the current requirements in discovery.

How do you handle GDPR?

GDPR applies directly, supplemented by Organic Law 3/2018 on Personal Data Protection and Guarantee of Digital Rights (LOPDGDD) and supervised by the AEPD; B2B buyers expect an Art. 28 data processing agreement, a sub-processor list and, in practice, EU/EEA hosting or SCC-covered transfers. You choose where the system is hosted, access is role-based, and we work on test or masked data during development wherever possible.

Can you migrate us from Holded, Wolters Kluwer a3 or Sage?

Yes. Masters, ledgers, stock items and opening balances move across and are reconciled with your accountant before cutover, ideally at a year-end or quarter-end.

Are there AI rules we need to follow in Spain?

The EU AI Act applies directly: prohibited AI practices have been banned since 2 Feb 2025, general-purpose AI model rules apply since 2 Aug 2025 and transparency duties (e.g. chatbot disclosure, AI-content labelling) since 2 Aug 2026, while the Digital Omnibus on AI (in force 27 Jul 2026) moved stand-alone high-risk (Annex III) obligations to 2 Dec 2027 and product-embedded high-risk (Annex I) obligations to 2 Aug 2028; Spain has created a dedicated AI supervisor, AESIA (Agencia Española de Supervisión de la Inteligencia Artificial). We design AI agents with logging, human oversight and clear disclosure from the start, which covers most current requirements.

Contact

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