Financial Services Luxembourg · licensed accountant · business permit 10077274 · RCS B213987

NEUTRAL 2026 COMPARISON 14 criteria · 4 packages · Luxembourg context

Odoo, Sage BOB, Winbooks, Horus:
the 2026 comparison
for Luxembourg.

A neutral comparison of the four accounting and ERP packages most widely used in the Grand Duchy, on 14 operational criteria for SMEs, SOPARFIs and accounting firms. No editorial bias, no marketing, based on the hands-on practice of Financial Services Luxembourg and the publishers' official documentation. Recommendation by profile, real 2026 prices and a built-in decision tree.

14 criteria assessed Real 2026 prices Lux GAAP compliance Recommendation by profile Decision tree Neutral comparison by Financial Services Luxembourg
See the 14-criteria matrix Recommendation by profile
14 Criteria assessed
compliance + features
4 Packages compared
Odoo, Sage, Winbooks, Horus
5 Typical profiles
dedicated recommendation
2026 Prices updated
as at 23 May 2026
01Overview 0214-criteria matrix 03Real 2026 prices 04Lux compliance 05Functional scope 06By profile 07Decision tree 08FAQ
Question 01

What is the difference between Odoo, Sage BOB, Winbooks and Horus in Luxembourg?

Sage BOB, Winbooks and Horus are accounting packages (specialists); Odoo is a full ERP (generalist). The first three excel at Luxembourg accounting, VAT, eCDF and FAIA but require third-party tools for CRM, sales, purchasing, inventory and payroll. Odoo unifies all these flows in a single open source platform, at a lower licence cost, at the price of an accounting interface that is slightly less efficient for pure data entry.

Odoo

01

Belgian open source ERP created in 2005, 13M+ users worldwide. Native Luxembourg module (l10n_lu) with PCN 2020, eCDF, FAIA. Covers accounting, CRM, sales, purchasing, inventory, MRP, payroll, projects and e-commerce in one platform.

  • Full ERP
  • Open source
  • REST API
  • Native l10n_lu
  • ~EUR 20/user
  • Native Peppol

Sage BOB

02

Belgian-Luxembourg accounting software, formerly BOB 50, the historical leader among accounting firms. Sage BOB Expert version dedicated to firms. Native PCN 2020, eCDF, FAIA, e-VAT. Add-on modules (BOB-Demat, BOB-Cash, BOB-Presta).

  • Accounting specialist
  • BOB Expert for firms
  • Native PCN 2020
  • Add-ons
  • Publisher pricing
  • Peppol on roadmap

Winbooks

03

Belgian accounting software created in 1989, widely established among Belgian-Luxembourg SMEs and accounting firms. Four versions (Classic, Connect, On Web, View). Native PCN 2020, eCDF, FAIA. Gradual transition approach to the cloud.

  • Accounting specialist
  • 4 versions
  • Native PCN 2020
  • CODA import
  • Publisher pricing
  • Cloud Connect

Horus

04

Belgian accounting software dedicated to accounting firms (experts-comptables). Designed specifically for managing multiple client files. PCN 2020, eCDF, FAIA. Horus Connect for collaboration with clients. More niche than Sage and Winbooks.

  • Firm accounting
  • Multi-client files
  • Native PCN 2020
  • Horus Connect
  • Publisher pricing
  • Native FAIA
Question 02

Full matrix of the 14 criteria that set the 4 ERPs apart in Luxembourg.

Out of 14 operational criteria assessed for the Luxembourg market, Odoo comes out ahead on 9 (open API, modules beyond accounting, multi-company, licence price, data ownership, native AI, Peppol, EU hosting, ecosystem). Sage BOB and Winbooks win on 3 criteria (pure data-entry efficiency, long-standing support, established auditor integration). Horus wins on 2 criteria (multi-client files for accounting firms, initial training).

Criterion
Sage BOB
Winbooks
Horus
Odoo (Financial Services Luxembourg)
01 · PCN 2020 chart of accountsLux GAAP compliance
Native
Native
Native
Native (l10n_lu)
02 · eCDF XML generationRCS and CTIE filing
Native
Native
Native
Native
03 · FAIA exportAED Circular 780
Add-on module
Native
Native
l10n_lu_saft
04 · Functional scopeBeyond accounting
Accounting only
Accounting + payroll
Accounting + payroll
Full ERP
05 · Multi-companySeveral entities in 1 instance
1 database / company
1 database / company
Multi-client files
Multi-company
06 · Multi-currencyEUR/USD/CHF/GBP with automatic rates
Sage Currency
Limited
Yes
Native ECB
07 · Open API / integrationsConnecting third-party tools
Paid add-ons
Paid API
Limited
Native REST
08 · AI invoice OCRAutomatic data entry
BOB-Demat
Third-party add-on
Add-on module
Native v17+
09 · European B2B Peppol2030 requirement
Roadmap
Yes
Roadmap
Native v17+
10 · PSD2 bank feedAutomatic sync with LU banks
Manual CODA
Manual CODA
Manual CODA
Native PSD2
11 · Licence costSME, 5 users / month
Publisher pricing
Publisher pricing
Publisher pricing
Per user
12 · Data ownershipOpen source vs proprietary
Sage proprietary
WB proprietary
Horus proprietary
Open source, owned by the client
13 · EU hostingGDPR and sovereignty
BE/LU
BE/LU
BE
BE (Odoo.sh)
14 · LU integrator ecosystemMarket maturity
Very mature
Mature
Mature niche
Fast-growing
Question 03

How do you compare the real cost of these four ERPs in Luxembourg?

The four publishers do not bill on the same basis, which makes any comparison based on the monthly amount alone misleading. Odoo bills per user, with a separate hosting cost on Odoo.sh. Sage, Winbooks and Horus bill per licence or per client file, with localisation modules sometimes included, sometimes charged as extras. Price lists change regularly: consult those published by each publisher for an up-to-date figure, and above all compare the scope covered.

Odoo
Per user
plus hosting
Billed per user according to the chosen plan. On Odoo.sh, hosting is charged as a separate cost. The Luxembourg localisation is included in the Enterprise offering.
Winbooks
Per licence
depending on version
Four versions with separate pricing. Payroll and additional modules are generally charged on top of the basic accounting offering.
Horus
Per client file
firm-oriented model
Pricing designed for firms managing multiple client files. The cost follows the number of client files managed rather than the number of users.
Sage BOB
Per licence
plus add-ons
Basic accounting offering, extended by additional modules billed separately, notably for dematerialisation and bank management.
Calculation methodology. Publishers' 2026 public prices for 5 concurrent users with basic Luxembourg modules (accounting, VAT, eCDF, FAIA). Excluding initial configuration (one-off EUR 2,500 to EUR 8,000), excluding monthly accounting firm support (EUR 200 to EUR 2,500/month depending on profile), excluding additional sector-specific modules. For Odoo, Odoo.sh is the official cloud option; Odoo Online is less flexible but ~EUR 15/user/month; Odoo Community is free but requires in-house hosting and technical maintenance.
QUESTION 04

What Lux GAAP compliance do the 4 ERPs really offer?

All four packages (Odoo, Sage BOB, Winbooks, Horus) are Lux GAAP compliant with PCN 2020, eCDF and FAIA, but their level of native integration differs. Sage BOB and Horus, designed for the Belgian-Luxembourg market from the outset, have the most mature and most automated compliance. Winbooks and Odoo added it later through their localisation modules (l10n_lu for Odoo), with the same regulatory level but a few additional manual steps.

PCN 2020 Standardised chart of accounts
4 compliant packages
eCDF XML CTIE and RCS filing
4 native packages
FAIA AED Circular 780
4 compliant packages
Lux VAT 17/14/8/3%, OSS
4 native packages
Native compliance from the outset

Sage BOB and Horus

  • Designed for the Belgian-LU market 1990+historical
  • Mature PCN, eCDF, FAIA15+ years
  • Lux legal updatesquarterly
  • House of Training coursesofficial
Compliance through localisation

Winbooks and Odoo

  • Compliance added 2010+module
  • Very comprehensive Odoo l10n_luv14+
  • FAIA via l10n_lu_saftdedicated module
  • Continuous updatescloud
Differences in depth

Compliance edge cases

  • Multi-currency SOPARFIOdoo + Horus > Sage + WB
  • Multi-entity holdingsOdoo native
  • CSSF-regulated fundsOdoo on-premise
  • Manufacturing MRP + accountingOdoo only
Big Four and auditors

Acceptance by statutory auditors

  • Sage BOBhistorical benchmark
  • Winbooksuniversally accepted
  • Horusaccepted, firm niche
  • Odooaccepted since 2020
Question 05

Beyond accounting, what does Odoo do that the others do not?

Odoo covers 12 functional areas that Sage BOB, Winbooks and Horus do not cover, or only through third-party tools that have to be coordinated: sales CRM, quotes and orders, e-commerce and marketplaces, point of sale (POS), multi-warehouse inventory management, MRP production planning, project management and timesheets, HR beyond payroll, marketing automation, helpdesk, electronic signature, and website. This is the central argument that justifies migration for multi-flow organisations.

Sales and CRM

01

Odoo manages the sales pipeline, quotes with automatic follow-ups, and their conversion into orders and then invoices without re-keying. Sage BOB, Winbooks and Horus do not cover CRM, which requires Salesforce, HubSpot or Pipedrive alongside.

  • Pipeline
  • Quotes
  • Orders
  • Follow-ups
  • Email tracking
  • Lead scoring

E-commerce and POS

02

Odoo natively integrates an e-commerce website and an in-store point of sale with shared inventory. Luxembourg accountants on Sage or Winbooks have to connect Shopify, WooCommerce or Lightspeed through paid connectors, with re-keying.

  • Native e-commerce site
  • In-store POS
  • Multi-shop
  • EU OSS
  • Peppol
  • Shared inventory

Multi-warehouse inventory

03

Odoo Inventory manages several physical warehouses, tracking by serial number or lot, internal transfers, drop-shipping and cycle counts. Essential for trading, manufacturing and e-commerce. The other ERPs refer you to Sage Stock, Winbooks Logistics or Odoo itself.

  • Multi-warehouse
  • Serial numbers
  • Lot traceability
  • Transfers
  • Drop-ship
  • Stock counts

Industrial MRP

04

Odoo Manufacturing manages bills of materials (BOM), manufacturing orders, work orders, quality control and preventive maintenance. Sage, Winbooks and Horus have no equivalent: Luxembourg manufacturers have to add SAP B1 or Microsoft Dynamics.

  • BOM
  • Production orders
  • Routings
  • Quality
  • Maintenance
  • PLM

Projects and timesheets

05

Odoo Project orchestrates engagements, timesheets, milestones and time-based invoicing. Critical for service and consulting companies. Sage BOB and Winbooks have no equivalent; Horus offers a light module limited to accounting firms.

  • Project Kanban
  • Timesheets
  • Milestones
  • T&M invoicing
  • Profitability
  • Gantt

HR beyond payroll

06

Odoo HR covers Luxembourg payroll (l10n_lu_hr_payroll, CCSS, RTS) AND recruitment, onboarding, leave, appraisals, training and expense management. Sage and Winbooks handle payroll only; Horus does not natively cover LU payroll.

  • LU payroll + CCSS
  • Recruitment
  • Onboarding
  • Leave
  • Appraisals
  • Expense claims
Question 06

Which ERP to recommend for your profile?

Financial Services Luxembourg recommends different ERPs for five typical profiles in Luxembourg: single-task accounting firm → Sage BOB Expert or Horus, growing multi-flow SME → Odoo.sh, SOPARFI and multi-entity holding → Odoo, self-employed with simple accounting → Winbooks On Web, manufacturer → Odoo only. No ERP is universally superior; the right choice depends on the actual scope of your business.

Profile 01 · Single-task accounting firm

Accounting firm with 10+ client files, pure accounting

Sage BOB Expert or Horus

If your business is solely your clients' accounting, with no sales management or inventory, Sage BOB Expert remains the historical benchmark of the Luxembourg market and Horus the niche alternative dedicated to accounting firms. Optimised accounting data-entry interface, mature support, House of Training courses. Odoo brings no added value in this specific case.

Profile 02 · Growing SME

5-50 employees, trading or services, multi-flow

Odoo.sh Enterprise

For an SME combining accounting + CRM + sales + purchasing + payroll, Odoo.sh unifies everything in one platform, which eliminates re-keying between tools and the cost of connectors. The l10n_lu module covers the standardised chart of accounts and Luxembourg VAT returns. This is the dominant profile among the clients of Financial Services Luxembourg.

Profile 03 · SOPARFIs and holdings

Multi-entity, multi-currency, Lux GAAP consolidation

Odoo Enterprise (custom)

For multi-entity SOPARFIs and family offices, Odoo Enterprise natively handles multi-company with consolidation, multi-currency at ECB rates, intragroup eliminations and investor reporting. Sage BOB and Winbooks handle one company per database, which makes groups more complex. See our dedicated Odoo SOPARFI page.

Profile 04 · Simple self-employed

Sole trader or single-member SARL, light accounting

Winbooks On Web

For a self-employed person who wants a light tool that is quick to learn, without oversizing, Winbooks On Web (cloud version) is the most pragmatic choice. Reasonable pricing, simple interface, full Lux compliance. Odoo would be oversized. Sage BOB is heavier for this profile.

Profile 05 · Manufacturing industry

Production, BOM, multi-site, lot traceability

Odoo Enterprise only

For a Luxembourg manufacturer with production, only Odoo offers Lux GAAP accounting + integrated MRP (BOM, manufacturing orders, routings, quality, preventive maintenance). Sage, Winbooks and Horus have no MRP equivalent, which forces you to connect SAP B1 or Dynamics with re-keying. A major saving for manufacturers.

Profile 06 · Fintech or SaaS scale-up

Subscriptions, IFRS 15, revenue recognition, IP Box

Odoo Enterprise + custom

For Luxembourg fintechs and SaaS companies, Odoo Subscription natively handles recurring billing, IFRS 15 revenue recognition and the IP Box. The REST API allows integration with Stripe, Adyen, Mollie. Sage BOB and Winbooks do not handle ARR complexity. Horus is not suited to tech companies.

Question 07

The decision tree in 3 questions to decide in 2 minutes.

Three questions are enough to identify the right ERP in Luxembourg in 2026: do I need functions beyond accounting, how complex is my structure (single or multi-entity), and what is my target licence budget. Combining these three axes gives a practical recommendation, validated by the experience of Financial Services Luxembourg across 50+ engagements.

Question 1 of 3

Do you need tools beyond accounting (CRM, sales, inventory, payroll, projects)?

No, pure accounting only You keep the books of an accounting firm, or your business only generates simple invoices, with no sales management, no inventory and no complex payroll. → Sage BOB Expert or Horus
Yes, I combine several flows You need to manage sales, purchasing, inventory, payroll, projects, e-commerce or MRP in addition to accounting. Unification in an ERP becomes critical. → Question 2
Question 2 of 3

Do you have one or several legal entities (multi-company, multi-currency)?

A single company, EUR only You operate a single Luxembourg legal entity, in EUR only, with no subsidiaries or holdings in other countries. → Question 3 (budget)
Several companies or currencies You operate several companies (SOPARFI + subsidiaries), multiple currencies (EUR/USD/CHF), or consolidate several entities. Native multi-company is essential. → Odoo Enterprise
Question 3 of 3

What ERP licence budget are you targeting (5 users / month)?

Tight licence budget You want to minimise the licence cost while benefiting from a full open source ERP, and accept a slightly longer learning curve. → Odoo.sh
Comfortable budget EUR 180-250/month You prioritise simplicity, a mature ecosystem and an optimised accounting data-entry interface. The extra licence cost is acceptable. → Winbooks On Web or Sage BOB
Financial Services Luxembourg supports all 4 ERPs

Our recommendation is not biased towards Odoo. Financial Services Luxembourg supports its clients on all four packages according to their actual profile, and carries out the migration where appropriate. The free 30-minute review objectively identifies the right choice for you.

Question 08

ERP comparison FAQ Luxembourg 2026

Eight questions structured with FAQPage Schema.org markup for reading by search engines and AI assistants. All figures and timelines come from the publishers' official documentation and from the hands-on practice of Financial Services Luxembourg across 50+ ERP engagements in Luxembourg since 2021.

What is the best accounting software in Luxembourg in 2026?

+
The best accounting software in Luxembourg depends on your actual scope: Sage BOB Expert or Horus for a single-task accounting firm, Odoo for an SME or SOPARFI combining several flows, Winbooks On Web for a self-employed person with no complexity. For a single-task accounting firm: Sage BOB Expert or Horus. For a multi-flow SME or SOPARFI: Odoo. For a simple small business: Winbooks On Web. See our decision tree in section 07.

Odoo vs Sage BOB: which one to choose in Luxembourg?

+
Between Odoo and Sage BOB in Luxembourg, Sage BOB is enough if your needs are limited to accounting, VAT, eCDF and FAIA, as its data-entry interface is more efficient. Odoo becomes the obvious choice as soon as you combine accounting, CRM, sales, purchasing, inventory or payroll on the same database. If you only need accounting, VAT, eCDF and FAIA: Sage BOB is enough and its interface is more efficient for pure bookkeeping entry. If you combine accounting with CRM, sales, purchasing, inventory or payroll: Odoo unifies everything and saves re-keying, with a broader functional scope.

How do you compare the real cost of these four ERPs?

+
Comparing the real cost of these four ERPs means looking beyond the monthly amount: billing models differ, with Odoo billing per user with separate hosting, Sage and Winbooks per licence, and Horus per client file. Configuration and accounting fees weigh more heavily over three years. Odoo.sh is billed per user with a separate hosting cost. The four publishers' price lists change regularly: consult their pricing pages for an up-to-date figure. The decisive cost item remains configuration and accounting support, not the licence.

Do all these ERPs handle Luxembourg eCDF and FAIA?

+
All four ERPs handle Luxembourg eCDF and FAIA: Odoo, Sage BOB, Winbooks and Horus produce the VAT return in XML format for the eCDF platform and a compliant FAIA export. Sage and Horus were designed for the Belgian-Luxembourg market; Odoo and Winbooks added it through their localisation. All four packages (Odoo, Sage BOB, Winbooks, Horus) natively generate the eCDF return in XML format for the CTIE and the FAIA export compliant with the AED FAIA specifications. The difference: Sage BOB and Horus were designed for the Luxembourg market from the outset. Winbooks and Odoo added it later through their localisation (l10n_lu for Odoo) with the same level of compliance.

Odoo Enterprise or Odoo Community for Luxembourg?

+
Odoo Enterprise is recommended for Luxembourg because it includes the tax localisation, generation of eCDF returns, the FAIA export and publisher support. Odoo Community is free but requires third-party modules for local compliance and in-house maintenance. Community is free but requires third-party modules for Luxembourg compliance, plus in-house hosting and technical maintenance. For a Luxembourg SME or accounting firm, Odoo Enterprise on Odoo.sh remains the optimal value for money (~EUR 20/user/month).

Can an Odoo file be audited as easily as a Sage BOB file?

+
Auditing an Odoo file is as workable as auditing a Sage BOB file: the compliant FAIA export, the auditors' trial balance, journals by period and read-only access cover the usual requests of statutory auditors (réviseurs d'entreprises). The l10n_lu_saft module generates a FAIA compliant with the AED FAIA specifications, equivalent to that of Sage BOB Expert or Horus. Auditors receive read-only access to the Odoo instance, the auditors' trial balance, journals by period and the FAIA export.

What is Sage BOB Expert vs Sage BOB 50?

+
Sage BOB Expert is the version intended for accounting firms and practices, Sage BOB 50 the version intended for SMEs. Both share the same accounting engine, with Expert adding multi-client file management and collaborative functions. It adds multi-client file management and collaborative features. Standard Sage BOB 50 is for SMEs, Sage BOB Expert for firms. Both share the same accounting engine. Sage renamed the offering in 2024 (dropping the '50', which dated from the era of a maximum of 50 files).

Which ERP is the most widely used in Luxembourg?

+
The most widely used ERPs in Luxembourg remain Sage BOB and Winbooks, historically established among accounting firms and SMEs. Horus is present among specialist firms, while Odoo has been growing since 2022 among multi-flow SMEs and SOPARFIs. Horus is used by specialist firms. Odoo has been growing rapidly since 2022 among growing SMEs and SOPARFIs, thanks to its cost-to-functionality ratio and its open ecosystem.

What are the drawbacks of Odoo?

+
Odoo's drawbacks lie less in the software than in its configuration. Four points come up systematically in the engagements we take over. The learning curve is longer than with specialised accounting software, because the scope is broader. An approximate accounting configuration remains invisible day to day and only comes to light at the VAT return or at year-end closing. Overly deep custom developments complicate version upgrades, and maintaining them carries a recurring cost. Finally, the displayed price does not cover the real cost: configuration, data migration, training and maintenance come on top. A useful point for Luxembourg: the free Community edition does not include the tax localisation needed for eCDF returns and the FAIA export.

Is Odoo an ERP?

+
Odoo is an ERP, that is, an integrated business management software package: it brings together accounting, sales, purchasing, inventory, manufacturing and human resources on a single database, activated module by module. This is what distinguishes it from accounting software such as Sage BOB, Winbooks or Horus, which records transactions without generating them at source.

Is Odoo accounting software?

+
Odoo is accounting software among other functions: its Accounting module covers the PCN 2020 chart of accounts, the four Luxembourg VAT rates, fiscal positions, generation of VAT returns in XML for eCDF and the FAIA export. The difference from specialised accounting software is that the accounting is fed by the other modules rather than entered separately.

Is Odoo software free?

+
Odoo is free in its Community edition, which is open source and can be installed on your own infrastructure, as well as in an online offering limited to a single application. For a Luxembourg company, this free use quickly reaches its limit: the tax localisation, generation of VAT returns in XML for eCDF and the FAIA export fall under the Enterprise offering, licensed per user. Hosting, configuration and maintenance come on top in all cases.

How much does Odoo software cost?

+
The price of Odoo software depends on the plan chosen, the number of users and the hosting mode, with Odoo.sh incurring costs separate from the licence. As price lists change regularly, refer to the official pricing page. At Financial Services Luxembourg, licences are re-invoiced at the publisher's price with no commission, and the decisive budget item remains the initial configuration, from EUR 2,500 to EUR 8,000 excl. VAT depending on complexity.

Who are Odoo's competitors in Luxembourg?

+
Odoo's competitors in Luxembourg are mainly Sage BOB, Winbooks and Horus, three accounting packages historically established among accounting firms and SMEs in the Grand Duchy. They cover accounting, VAT, eCDF and FAIA, but not sales, inventory or manufacturing, which then require third-party tools. In the large-group segment, SAP and Microsoft Dynamics occupy a different market.

What is the best alternative to Odoo in Luxembourg?

+
The best alternative to Odoo in Luxembourg depends on your scope: Sage BOB Expert or Horus for an accounting firm that only does multi-client bookkeeping, Winbooks On Web for a self-employed person with no inventory or manufacturing. These alternatives become less relevant as soon as several business flows need to share the same database.

Is Odoo reliable for Luxembourg accounting?

+
Odoo is reliable for Luxembourg accounting provided it is correctly configured. Its localisation produces VAT returns in XML format for eCDF and the FAIA export expected during a tax audit, and statutory auditors (réviseurs d'entreprises) accept files kept on this basis. Reliability depends on the configuration of taxes, accounts and partner records: that is where the anomalies we correct most often are found, not in the software.

Leaning towards Odoo after this comparison? Read the full pillar page.

Financial Services Luxembourg is an Odoo-native accounting firm. If your profile matches Odoo (multi-flow SME, SOPARFI, manufacturing, fintech), our pillar page details the 24 modules, the 8 industries we support, the 8 services delivered, the Financial Services Luxembourg pricing and the comprehensive FAQ on Odoo in Luxembourg.

Read the Odoo pillar page
Odoo hub

Go further with Odoo in Luxembourg

The Odoo pages of Financial Services Luxembourg, licensed accountant: integration, configuration, VAT, migration and e-invoicing.

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