Odoo Integration Services in the UK
Integrations are easy to demonstrate and hard to run. The work is not the connection, it is what happens on the day one side is down.
What changes the cost of an Odoo integration in United Kingdom
The delivery method is the same everywhere. What moves the number is what this market demands of the system, and how much of that Odoo already covers.
United Kingdom runs Mandatory e-invoicing for VAT invoices, run over Peppol (no local-language name, the UK operates in English). That is configuration and testing work inside the build, not an afterthought, and it is the item most often left out of a quote.
6 of the 17 payment options that matter in United Kingdom are not shipped with Odoo, so they need a paid connector or a build. 11 ship in the box.
10 of the 14 couriers used in United Kingdom have no Odoo connector. 4 do. Which ones you actually use changes the estimate more than the number of users does.
Odoo's United Kingdom localization does not cover everything. The gaps are listed on the country page and each one is either a build or a bought module.
Statutory payroll in United Kingdom has its own rules. Whether Odoo ships a payroll localization for this market decides if that is configuration or development.
Market facts on this page checked on 22 August 2026 by Waqas Riasat, Way4Tech.
Where United Kingdom starts from
United Kingdom runs 5 native Odoo localization items and 4 custom ones. Integrations here sit on top of whichever of those already exists, which is a different job to building on a market with no localization at all.
Where we deliver in the United Kingdom
An integration depends on which systems sit on the other end, not on which city the business sits in. London, Manchester, Birmingham, Leeds, Glasgow, Edinburgh, Bristol and Liverpool, and businesses across England, Scotland, Wales and Northern Ireland, are covered on the same terms.
What odoo integration has to satisfy in United Kingdom
The rules that decide how much of this is configuration and how much is a build. Everything below is from our United Kingdom register, checked against a primary source.
No B2B e-invoicing mandate is in force. Public-sector obligations already exist: UK contracting authorities must be able to receive and process EN 16931-compliant e-invoices, and NHS England requires Peppol.
- Structured, machine-readable invoice data that the recipient's system can process, not a PDF.
- Peppol as the core interoperability network, so a four-corner exchange through an access point rather than a filing to a government portal.
- No real-time reporting to HMRC at launch. The consultation response says real-time reporting will not be implemented in 2029 and would only follow once e-invoicing use is well established.
- Format choice, phasing and the treatment of legacy EDI are still open. Nothing firm until the Budget 2026 roadmap.
- Tax VAT standard rate is 20%. The reduced rate is 5% (for example children's car seats and home energy) and the zero rate is 0% (for example most food and children's clothes).
- Tax VAT registration is compulsory once total taxable turnover for the last 12 months goes over 90,000 pounds.
- Tax VAT returns are usually filed every 3 months. The deadline to file online and to pay is one calendar month and 7 days after the end of the accounting period.
- Tax Making Tax Digital for VAT covers all VAT-registered businesses. GOV.UK states they should all now be signed up. Returns are submitted from compatible software through HMRC's MTD VAT API, which is what Odoo's l10n_uk_reports module connects to.
- Tax Making Tax Digital for Income Tax started on 6 April 2026 for sole traders and landlords with qualifying income over 50,000 pounds in the 2024 to 2025 tax year. The 30,000 pound band (2025 to 2026 income) joins on 6 April 2027, and the 20,000 pound band (2026 to 2027 income) on 6 April 2028.
- Tax Construction Industry Scheme deductions are 20% for registered subcontractors and 30% for unregistered ones, with 0% for gross payment status. VAT, materials, plant hire, fuel and consumable stores come out of the payment before the percentage is applied.
- CT600-ready chart of accounts and a VAT100-ready tax structure
- UK accounting reports and VAT return submission to HMRC through the MTD VAT API
- Bacs files for paying suppliers and collecting from customers
- CIS monthly returns to HMRC and CIS deduction reporting
- Peppol exchange: Odoo runs its own access point and SMP, and the UK is on Odoo's list of countries eligible for Peppol registration
- UK payroll. Odoo ships no official UK payroll localization: the payroll localizations documented for v19 are Australia, Belgium, Egypt, Hong Kong, India, Jordan, Kenya, Mexico, Saudi Arabia, Turkiye, UAE and the US. The documented UK route is the Employment Hero Payroll integration. RTI submissions, auto-enrolment assessment and statutory payments are not in the standard product.
- iXBRL statutory accounts. Odoo does not tag accounts for HMRC or Companies House. That stays with the accountant's software, which matters more now that HMRC's free filing service closed on 31 March 2026 and Companies House goes software-only in April 2028.
- Multi-company HMRC submissions. Only one company and one user can be connected to HMRC at a time, so group filings have to be run in sequence.
- The 2029 e-invoicing build cannot be scoped yet. Peppol is confirmed as the network but the format, phasing and legacy EDI treatment come with the Budget 2026 roadmap.
Reviewed 2026-08-22. The full United Kingdom register
How we run the work
5 stages, the same in every market: Data flow mapping, Interface and access setup, Build with failure handling, Testing the unhappy paths, Go-live and reconciliation. The method does not change by country, so it is written up once rather than repeated here.
The integrations this market usually needs
Badged by what it takes in Odoo. Anything not marked In Odoo is a paid connector or a build, and that is the part quotes usually miss.
Questions we get asked
- How long does a typical integration take?
- A single well-documented flow with sandbox access on both sides is a short piece of work. What extends it is nearly always outside the code: waiting for credentials, discovering the other API is undocumented in the area you need, or finding that nobody has decided which system owns the customer record.
- Can you integrate a system that has no API?
- Often, through file exchange, database access or scheduled exports, and the result works. It is less immediate and needs stricter reconciliation because there is no acknowledgement to rely on. We would rather do that properly than pretend a scraped interface is an integration.
- Does Odoo have an official localization for United Kingdom?
- Yes. Odoo ships 5 native items for United Kingdom, covering the basics of the chart of accounts and statutory setup. 4 areas are still outside that localization and get built or bought separately.
- Is e-invoicing mandatory in the United Kingdom?
- No B2B e-invoicing mandate is in force. Public-sector obligations already exist: UK contracting authorities must be able to receive and process EN 16931-compliant e-invoices, and NHS England requires Peppol. The United Kingdom e-invoicing page carries the full detail and the sources.
- What VAT or sales tax does Odoo have to handle in the United Kingdom?
- VAT standard rate is 20%. The reduced rate is 5% (for example children's car seats and home energy) and the zero rate is 0% (for example most food and children's clothes).
- Do you work with businesses in London and other parts of the United Kingdom?
- Yes. An Odoo integration runs remotely by default, and being based in one city inside the United Kingdom does not change the plan or the price. Cities we cover for on-site visits: London, Manchester, Birmingham, Leeds, Glasgow, Edinburgh, Bristol, Liverpool. Regions we cover: England, Scotland, Wales, Northern Ireland. We travel on-site for discovery workshops and go-live week when the engagement calls for it.