Odoo

Odoo's headline price is the easy part to understand. What it costs to make Odoo fit your business is harder, and that's where most evaluations go wrong.

Odoo is a Belgian ERP built as a set of apps (accounting, sales, CRM, inventory, manufacturing, purchasing, point of sale, website, eCommerce, HR, projects, helpdesk and more) that share one database. You switch on what you need and add the rest later. Odoo's homepage claims 28 million users and 40k+ community apps in its ecosystem. Those are vendor figures, but the size of the ecosystem is real, and it shapes both the strengths and the risks covered below.

What Odoo Is in 2026

Odoo ships one major version a year. Odoo 20.0 was released in September 2026; Odoo 19.0 came out in September 2025. Under Odoo's published support policy, each major version gets three years of standard support, so 19.0 is planned to run until September 2028 and 20.0 until September 2029. Extended support after that costs extra and is only available on Odoo.sh or on-premise.

Odoo 19 brought AI agents, natural-language search, a reworked bank reconciliation screen, a new tax-return feature with deadline checks, and two new apps (ESG and Equity). Odoo 20 goes further on accounting: parent accounts replace account groups, account codes become optional, journal entries that hit bank accounts must now come from bank transactions, and payment statuses were renamed ("In Process" becomes "Paid", "Paid" becomes "Reconciled"). If your accountant learned Odoo on an older version, plan some retraining.

One change deserves a flag. In Odoo 20, all AI features require IAP credits, Odoo's pay-as-you-go in-app purchase system. AI is no longer a flat part of the subscription.

Editions and Pricing (October 2026)

There are two codebases and three ways to host them.

• Odoo Community is open source (LGPL-3). No licence fee, but you host it yourself, and several apps and features are Enterprise-only.
• Odoo Enterprise is Community plus proprietary modules, sold per user. You can switch from Community to Enterprise later; Odoo describes Community as the core Enterprise is built on.
• Hosting: Odoo Online (Odoo's SaaS), Odoo.sh (Odoo's managed platform for custom code), or on-premise.

List prices on odoo.com for Spain, checked in October 2026:

• One App Free: €0. One app, unlimited users, on Odoo Online.
• Standard: €24.90 per user/month billed yearly, or €31.10 billed monthly. All apps, Odoo Online only. A launch discount (€19.90 yearly) applies for 12 months to the initially ordered users.
• Custom: €44.90 per user/month billed yearly, or €56.90 billed monthly (€35.90 discounted for the first 12 months). Adds Odoo Studio, agentic AI, multi-company and external API access, and it's the only plan that can run on Odoo.sh or on-premise.
• Light User: listed at €7.90.

Odoo Online hosting is included, with up to 100 GB of storage. Odoo.sh hosting is not included in any plan: you pay separately for workers, storage and staging environments. Odoo recommends one extra worker per 25 back-end users.

Quick maths at list price: 15 users on Standard, billed yearly, is 15 × €24.90 × 12 = €4,482 a year in licences. On Custom it's €8,082 a year, before any Odoo.sh fees. That jump matters. Need Studio, an API integration with your e-shop, or a second legal entity? Then you're on Custom.

Strengths

• Breadth in one database. Sales orders, stock moves, invoices and accounting entries all live together. A quote becomes a delivery and then an invoice without exports or connectors.
• Transparent list pricing. Rare in ERP. You can work out the licence bill from a public page before talking to anyone.
• The ecosystem. Thousands of community modules, plus the OCA (Odoo Community Association) repositories, cover gaps that Odoo SA doesn't. For Spain, the OCA `l10n-spain` repository is active.
• Freedom to leave the SaaS. Custom plan customers can move between Odoo Online, Odoo.sh and self-hosting. Community users can run indefinitely without a licence.
• Modern web interface. It runs in the browser and feels closer to a current SaaS app than to a classic desktop ERP.

Limitations

• The Standard-to-Custom gap. Studio, multi-company and external API access all sit on Custom. Many growing companies end up there, at nearly double the per-user price.
• Annual upgrade pressure. Three years of standard support sounds generous until you realise every major upgrade means testing custom modules and community add-ons again. Upgrades are allowed from any version still under standard support (or out of it for less than six months).
• Module quality varies. Odoo SA maintains its own apps; third-party modules depend on whoever wrote them. Check maintainers, version support and test coverage before installing.
• Community has real gaps. Some features that matter in Spain, including the official Spanish tax-report module, live only in Enterprise (more on this below).
• AI is metered. From Odoo 20, AI features consume IAP credits, so budget for usage.

Spain: Verifactu, SII and Localisation

This is where Odoo has done concrete work, and it's documented.

The Spanish localisation installs `l10n_es` (PGCE 2008 chart of accounts), `l10n_es_reports` and its 2024 and 2025 updates, `l10n_es_edi_facturae` (Facturae for public administration invoicing) and `l10n_es_intrastat`. Installed separately:

• `l10n_es_edi_verifactu` and `l10n_es_edi_verifactu_pos` for Verifactu, sending invoices and POS orders to the AEAT and printing the QR code on the invoice.
• `l10n_es_edi_sii` for SII (Suministro Inmediato de Información).
• `l10n_es_edi_tbai` and `l10n_es_pos_tbai` for TicketBAI in Álava, Bizkaia and Gipuzkoa.

The Verifactu, SII and TicketBAI modules are in Odoo's open-source repository under LGPL-3 for versions 18.0, 19.0 and 20.0, so Community users get them too. The Tax Report menu, with Modelos 111, 115, 130, 303, 347, 349 and 390, comes from `l10n_es_reports`, which isn't in the open-source repository. On Community, the usual route is OCA `l10n-spain` (for example `l10n_es_aeat_mod303`). OCA ports for each new version arrive gradually, so check before upgrading.

Timing: Real Decreto-ley 15/2025 pushed Verifactu to 1 January 2027 for corporate income tax payers and 1 July 2027 for everyone else, including autónomos. Companies already on SII are exempt from Verifactu, as Odoo's own documentation notes. SII remains mandatory for companies with turnover above €6 million, those registered in REDEME (monthly VAT refunds) and VAT groups.

What the Spain documentation doesn't cover is payroll. If you need Spanish nóminas, Seguridad Social filings and collective agreements, ask your partner exactly how they'll handle it before you sign.

Implementation: Time, Cost Drivers, Partners

Odoo sells Success Packs for implementation. As listed in October 2026, they range from a 4-hour Starter pack to Standard (50 hours, €5,500) and Pro (200 hours, €19,800), with 15% off for new customers. Those hours give you a feel for scale: a simple setup for a few users fits in the smaller packs; data migration and customisation push you up.

Spain also has a large partner network. Odoo's directory lists 110 partners in Spain (9 Gold, 35 Silver, 66 Ready) as of October 2026.

The main cost drivers:

• Customisation. Every custom module has to be maintained across upgrades.
• Data migration from your current ERP or accounting tool.
• Spanish compliance setup: certificates, tax mapping, Verifactu or SII testing.
• Hosting choice. Odoo.sh adds platform costs; self-hosting adds sysadmin time.
• Payroll and other Spain-specific gaps you may cover with external tools.

Who Should (and Shouldn't) Choose Odoo

Good fit:

• Spanish SMEs from roughly 5 to a few hundred users that need inventory, manufacturing, eCommerce or multi-step sales, not just invoicing.
• Companies replacing a patchwork of separate tools with one database.
• Teams with a technical person or a trusted partner who can own upgrades.
• Businesses that want a public price list and the option to self-host.

Look elsewhere if:

• You're an autónomo or micro-business that only needs Verifactu-compliant invoicing and bookkeeping. A simpler Spanish invoicing tool is cheaper to run.
• You expect zero-maintenance software. Odoo's yearly release cycle means regular upgrade work.
• You need deep industry processes that a large enterprise suite already covers out of the box, across dozens of countries.

Bottom line? Odoo gives Spanish SMEs real ERP scope at a published price, with Verifactu, SII and TicketBAI modules maintained by the vendor. Budget for the Custom plan if you'll customise, and for a partner who knows Spanish compliance.