Schema and XSD errors
Schema errors usually mean the XML structure, element order, required field or technical format does not match the supported schema expectation.
GIR XML validation
GIR XML validation should turn technical errors into reviewable next steps. GIR.WTF focuses on schema errors, required fields, format issues, mapping gaps and Belgian technical validation behaviour.
GIR.WTF handles the technical layer. The user and their advisers remain responsible for the underlying tax and legal positions, the reporting information and the final filing decisions.

Example validation cases
GIR.WTF presents validation as a technical feedback loop: identify the issue, connect it to the source input and keep the next review step visible before export.

Missing required technical fieldExample case: reporting-period, filing-entity or jurisdiction input is absent, so the message points back to the missing structured source field.
Malformed XML before schema checksExample case: pasted XML cannot be parsed safely, so the user sees a syntax-level issue before treating the document as schema-ready.
Belgian validation rule contextExample case: a Belgian technical validation message should identify the data gap or format issue for review without claiming authority acceptance.
What GIR.WTF does
GIR.WTF combines guided GIR XML generation, browser-based technical validation, schema mapping, Belgian technical checks and XML export in one focused product workflow.
Schema errors usually mean the XML structure, element order, required field or technical format does not match the supported schema expectation.
A validation issue often starts upstream: a missing reporting period, entity identifier, jurisdiction input or inconsistent structured answer.
Belgian validation rules add implementation checks on top of schema readiness. GIR.WTF treats those as technical validation messages, not legal conclusions.
Official sources
GIR.WTF is implementation software. OECD and FPS Finance remain the authoritative sources for the GIR XML schema, Belgian materials and official filing context.

Practical questions
Each focused GIR XML page starts from a concrete implementation problem: generating XML, validating structure, mapping the OECD schema, preparing Belgian context or reviewing validation-error behaviour.
Structural problems include invalid element order, missing required nodes and formats that do not match schema expectations.
Validation errors should identify whether the issue started with missing reporting-period, entity, jurisdiction or filing-context input.
Belgian validation behaviour belongs next to schema checks, but it remains technical implementation support rather than tax or legal advice.
Continue to the related workflowImplementation evidence
The public pages show the same boundary as the product: official sources define the schema and Belgian filing context; GIR.WTF provides the technical workflow around structured input, validation messages and export preparation.
The hub, generator, validator, schema, Belgium and validation-error pages each connect practical implementation questions with source-linked context and clear next workflow steps.
Teams preparing 2026 GIR XML work should verify the current OECD schema and user-guide source first. GIR.WTF adds a guided implementation layer around mapping, validation and export.
FPS Finance forms, tools, XSD and validation-rule materials are linked as official sources. GIR.WTF keeps Belgian implementation checks separate from tax advice or filing guarantees.
The browser demo exposes missing technical fields, malformed XML, unsupported document shape and format issues without sending pasted XML to the server.
Generator, validator, schema, Belgian validation rules, GIRNOT Belgium and MyMinfin notification preparation all resolve into the central GIR XML workflow.
GIR XML workflow
The GIR XML hub connects the practical implementation paths: generation, validation, schema readiness, Belgian technical context, GIRNOT, MyMinfin and validation-error detail.
Related implementation questions
These pages cover the common entry points for teams looking for GIR XML validation errors, OECD schema implementation, Belgian validation rules, GIRNOT and MyMinfin notification preparation.
GIRGIR means GloBE Information Return in Pillar Two. gir.wtf explains the Belgian GIR, GIRNOT, MyMinfin and GIR XML workflow for XML-ready review output. No tax or legal advice.
Belgian GIR validation rulesBelgian GIR validation rules page for Pillar Two teams preparing GloBE Information Return XML, GIR XSD checks, data gaps and reviewer-friendly validation output. No tax or legal advice.
GIRNOT BelgiumGIRNOT Belgium portal intake for the notification of the GIR filing entity: MyMinfin preparation, filing entity data checks and GIR/GIRNOT validation support. No tax or legal advice.
Pillar 2 GIR BelgiumPillar 2 GIR Belgium portal workflow for Belgian groups preparing GloBE Information Return data, GIRNOT scope, MyMinfin context and OECD GIR/XML validation. No tax or legal advice.
OECD GIR XML schemaOECD GIR XML schema 2026 readiness for Pillar Two teams: guided GIR data capture, XSD validation checks, XML export preparation and data gap review. No tax or legal advice.
MyMinfin GIR notificationMyMinfin GIR notification preparation for Belgian Pillar 2 teams: GIRNOT intake, filing entity data checks, XML-readiness and public-form boundaries. No tax or legal advice.
NederlandsGIR Belgie workflow voor Belgische Pijler 2-teams.
FrancaisWorkflow GIR Belgique pour les equipes Pilier 2.
FAQ
It is a technical issue with XML structure, required fields, formats, mapping or supported validation behaviour that needs review before export or submission workflow.
No. GIR.WTF can identify technical validation issues, but tax positions and reporting decisions remain with the user and advisers.
Portal access
Request access to the GIR portal. The first step is technical GIR/GIRNOT scope, data-gap and XML-readiness intake without submitting confidential production data through the public form.