Keep your existing ERP when reporting invoices under a Hungarian VAT number. SimplyX RTIR connects your source system to NAV Online Invoice, submits invoice data and tracks the processing result. If your ERP cannot produce NAV XML, we can scope a custom data mapping and configuration.
Primary connection and formats
For foreign businesses with a Hungarian VAT number, Hungarian companies with an international background, and corporate groups using a non-Hungarian ERP, invoice issuance can stay in the existing system. SimplyX RTIR handles the technical reporting connection, including custom data mapping where required.
A foreign business may have NAV invoice-reporting obligations even without a Hungarian subsidiary or local employees. The scope depends on its transactions and the applicable invoicing rules, not simply on having a Hungarian VAT number.
Connect your international ERP to RTIR instead of moving invoice issuance to a Hungarian invoicing product. We scope the available API or export, required source fields and the reporting workflow with your team.
If your ERP cannot produce NAV Online Invoice 3.0 XML, we can design a custom mapping from the available source data. We agree the fields, transformation rules and any source-system changes, then test the connection before go-live.
Starting Hungarian VAT registration? Plan the reporting connection alongside registration, before issuing invoices that fall within the reporting obligation. SimplyX RTIR provides technical integration; VAT registration and the scope of your obligations should be agreed with your tax adviser. NAV guidance on reporting scope.
Tell us your ERP, Hungarian VAT-registration stage, invoice volume and available data format. We will scope the mapping, implementation and service quote.
Transmission alone is not sufficient. NAV must receive and process the data successfully; a failed submission must be repeated.
Invoice data is transmitted when the invoice is issued, rather than through a separate user operation.
Data must be sent electronically to the Online Invoice system in the format and structure published by NAV.
The reporting obligation is fulfilled once NAV confirms successful processing. A rejected report requires a new submission.
RTIR is designed to manage invoice data received from an enterprise system as a validated, traceable transaction through to the NAV response.
Two distinct roles: RTIR M2M is the SimplyX platform; NAV Online Invoice M2M is the government reporting interface it connects to.
The screenshots below were captured from the running current version of the SimplyX RTIR client portal. Companies, invoices and processing results shown are freshly generated demonstration data; customer data and application access are not public.
NAV submission statuses, invoices requiring attention and selectable-period volume analytics.
Want to see the same flow with your own ERP data? In a consultation we assess your source system and the rollout steps.
Request an integration consultationAlongside submission through RTIR, the platform supports NAV data retrieval, verification and organisational access. These are complementary capabilities; its central role remains the reliable data connection between your enterprise system and NAV.
Invoice data available in NAV Online Invoice can be retrieved, while query results and history remain searchable and exportable.
Inbound and outbound NAV data can be compared with VAT analytics (which also underpins the eVAT M2M return process), surfacing amount, date, missing-record and potential duplicate differences for review.
Hungarian tax numbers can be checked against NAV data, while EU VAT numbers can be validated through the European Commission’s VIES service, individually or in batches.
Companies, users, API keys and access levels can be separated, supporting corporate-group and accounting-firm operating models.
Technical-user credentials, company separation, duplicate protection and a complete event history together make the process verifiable.
The password and keys required for the NAV Online Invoice interface connection can be managed as secrets, separately from application data.
Users can access only the reporting data and settings of the businesses assigned to them.
A unique idempotency key ensures that repeating the same request does not create another submission.
Every relevant status and event remains traceable from data intake through the NAV processing result.
The integration is not tied to a single ERP brand. We design it around the source system's connectivity, invoice workflow and required operational controls.
Yes. A foreign business with Hungarian VAT registration may have invoice-reporting obligations without a Hungarian subsidiary or local employees. The applicable invoicing rules, transactions and exceptions determine the scope. Confirm this with your tax adviser; RTIR provides the technical reporting connection.
SimplyX can scope custom data mapping and configuration from the available ERP data to the NAV Online Invoice 3.0 structure. We first review source fields, transformation rules and any missing data. Integration and testing are required; a ready-made adapter is not assumed.
Yes. SimplyX RTIR is a middleware platform that handles NAV reporting for invoice data from your existing invoicing or ERP system. Invoice issuance stays in the source system; the data connection and required integration work are scoped before implementation.
The source system connects to RTIR, which handles NAV submission and processing-result tracking. This uses a middleware connection instead of a direct NAV integration; source-data transfer, mapping and testing still need to be implemented.
Yes. Companies, users and API keys can be separated. Users can access reporting and settings for their assigned companies. The company structure and access levels are agreed during implementation.
A connection can be designed for ERP, invoicing and custom enterprise systems. The integration method is selected from the source system's available API, export options and data structure.
Yes. Once the integration is configured, invoice data moves from the source system to RTIR and then to the NAV Online Invoice interface without a separate user operation.
RTIR retrieves and retains NAV's processing result. The submission, NAV status and related events remain searchable for operational and audit purposes.
Temporary technical failures are handled through retry and logged status management. Final business or data errors can be reviewed separately.
Yes. Implementation includes validating source data and connectivity, followed by integration testing against NAV's test environment before production launch.
A Hungarian VAT number without a local subsidiary: understand the reporting scope and prepare an ERP connection before the first reportable invoice.
Connect a non-Hungarian ERP to NAV Online Invoice with scoped field mapping, validation and testing while keeping invoice issuance in your system.
Prepare finance, IT and your international ERP for NAV Online Invoice reporting: access, source data, mapping, test cases and operational ownership.
In the first consultation we review together:
Still researching? The free checklist walks through the integration in 30 points. Questions? Email [email protected]. Application access is provided after implementation and access configuration.
