# efsta Documentation

> Documentation of the efsta EFR fiscalization middleware, efsta E-Invoicing, Digital Bill and the efsta portal. The EFR has one local HTTP API for all countries: every transaction goes through `POST /register`, and the business case follows from the fields sent. Country rules are annotations on that one API.

The links below point to clean Markdown copies of the pages; the EFR API and guides are also available as one file. EFR API specification version 2026-09-16.

## Machine-readable

- [EFR OpenAPI specification](https://docs.dev.efsta.eu/efr-api/efr-openapi.yaml): OpenAPI 3.1 document of the EFR API, generated from the same model as these docs
- [efsta MCP server](https://mcp.docs.dev.efsta.eu/mcp): Model Context Protocol server (Streamable HTTP, no authentication) with tools for business-case requirements, request examples, payload validation and docs search
- [EFR API and guides as one file](https://docs.dev.efsta.eu/llms-full.txt): every page of the EFR API and EFR guides sections below

## EFR API

- [EFR Additional Functions](https://docs.dev.efsta.eu/llms/efr/api/additional-functions.md): EFR API additional functions: utility endpoints for data exports, reprints, and system management.
- [AI & Agent Integration](https://docs.dev.efsta.eu/llms/efr/api/ai-agent-integration.md): Connect Claude Code, Cursor or GitHub Copilot to the efsta MCP server to answer EFR integration questions from the official specification.
- [EFR API](https://docs.dev.efsta.eu/llms/efr/api/api.md): EFR API reference: base endpoints, authentication, configuration, and profile management.
- [Business Cases](https://docs.dev.efsta.eu/llms/efr/api/business-cases.md): EFR API business cases: practical examples for sales, voids, reprints, invoices, and country-specific transactions.
- [Country specific Business Cases](https://docs.dev.efsta.eu/llms/efr/api/country-specific.md): Country-specific EFR API elements, configurations, and business case extensions for all supported countries.
- [EFR Rule Set](https://docs.dev.efsta.eu/llms/efr/api/rule-set.md): Complete EFR API rule set: all transaction request and response elements with country-specific annotations.

## EFR guides

- [efsta System](https://docs.dev.efsta.eu/llms/efr.md): Overview of the efsta EFR (Electronic Fiscal Register) middleware, supported countries, and quick start links.
- [EFR Architecture](https://docs.dev.efsta.eu/llms/efr/architecture.md): Technical architecture of the efsta EFR middleware: components, data flows, and deployment options.
- [Cloud EFR](https://docs.dev.efsta.eu/llms/efr/cloud.md): Cloud EFR is a fully efsta-managed fiscalisation service where EFR runs in efsta's cloud infrastructure.
- [Container Usage](https://docs.dev.efsta.eu/llms/efr/container.md): Guide to running the efsta EFR as a Docker container, including setup and configuration.
- [Available Countries](https://docs.dev.efsta.eu/llms/efr/countries.md): Overview of all countries supported by the efsta EFR, with links to country-specific documentation.
- [Getting Started](https://docs.dev.efsta.eu/llms/efr/getting-started.md): Getting started with the efsta EFR: prerequisites, installation, and first steps for POS integration.
- [System Requirements](https://docs.dev.efsta.eu/llms/efr/system-requirements.md): System requirements for the efsta EFR: hardware, software, and network endpoint prerequisites per country.

## EFR country specifics

- [EFR Austria](https://docs.dev.efsta.eu/llms/efr/AT.md): Quick start guide for integrating the efsta EFR in Austria: RKSV prerequisites, setup, and FinanzOnline registration.
- [Austria – Export](https://docs.dev.efsta.eu/llms/efr/AT/export.md): Data export guide for the efsta EFR in Austria: DEP export format and FinanzOnline reporting.
- [Austria – FAQs](https://docs.dev.efsta.eu/llms/efr/AT/faqs.md): Frequently asked questions about the efsta EFR integration in Austria.
- [Austria – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/AT/fiscal.md): Austria fiscalisation requirements: VAT handling, FinanzOnline registration, and RKSV compliance using the efsta EFR.
- [Austria – Fiscal Devices](https://docs.dev.efsta.eu/llms/efr/AT/fiscal-devices.md): Supported fiscal security devices for the efsta EFR in Austria, including smartcard and remote certificate options.
- [Austria – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/AT/receipt-layout.md): Austria receipt layout requirements and field mapping for fiscalised receipts using the efsta EFR.
- [EFR Belgium](https://docs.dev.efsta.eu/llms/efr/BE.md): Quick start guide for integrating the efsta EFR in Belgium: FDM prerequisites, setup, and White Box fiscalisation.
- [Belgium – Export](https://docs.dev.efsta.eu/llms/efr/BE/export.md): Data export guide for the efsta EFR in Belgium: fiscal archive and audit export formats.
- [Belgium – FAQs](https://docs.dev.efsta.eu/llms/efr/BE/faq.md): Frequently asked questions about the efsta EFR integration in Belgium.
- [Belgium – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/BE/fiscal.md): Belgium fiscalisation requirements: FDM setup, VAT handling, and Certified POS compliance using the efsta EFR.
- [Belgium – Fiscal Devices](https://docs.dev.efsta.eu/llms/efr/BE/fiscal-devices.md): Supported fiscal security devices (FDM) for the efsta EFR in Belgium.
- [Belgium – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/BE/receipt-layout.md): Belgium receipt layout requirements and field mapping for fiscalised receipts using the efsta EFR.
- [EFR Czechia](https://docs.dev.efsta.eu/llms/efr/CZ.md): Quick start guide for integrating the efsta EFR in Czechia: prerequisites and setup steps.
- [Czechia – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/CZ/fiscal.md): Czechia fiscalisation requirements and EFR configuration using the efsta middleware.
- [Czechia – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/CZ/receipt-layout.md): Czechia receipt layout requirements and field mapping for fiscalised receipts using the efsta EFR.
- [EET 2.0 Roadmap](https://docs.dev.efsta.eu/llms/efr/CZ/roadmap.md): Czechia is reintroducing the electronic registration of sales.
- [EFR Germany](https://docs.dev.efsta.eu/llms/efr/DE.md): Quick start guide for integrating the efsta EFR in Germany: KassenSichV, TSE setup, and fiscalisation steps.
- [DE Appendix](https://docs.dev.efsta.eu/llms/efr/DE/appendix.md): Appendix for the efsta EFR Germany guide: additional references and supplementary information.
- [DATEV Guide](https://docs.dev.efsta.eu/llms/efr/DE/datev.md): Guide to integrating DATEV MeinFiskal with the efsta EFR for German fiscalisation and archiving.
- [Germany – Export](https://docs.dev.efsta.eu/llms/efr/DE/export.md): Data export guide for the efsta EFR in Germany: TSE export and DSFinV-K audit format.
- [Germany – FAQs](https://docs.dev.efsta.eu/llms/efr/DE/faqs.md): Frequently asked questions about the efsta EFR integration in Germany.
- [Germany – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/DE/fiscal.md): Germany fiscalisation requirements: KassenSichV, TSE certification, and DSFinV-K compliance using the efsta EFR.
- [Germany – Fiscal Devices](https://docs.dev.efsta.eu/llms/efr/DE/fiscal-devices.md): Supported TSE (Technical Security Elements) for the efsta EFR in Germany, including hardware and cloud options.
- [DATEV-onboarding](https://docs.dev.efsta.eu/llms/efr/DE/imports/DATEV-onboarding.md): 1) To request the activation of DATEV MeinFiskal, please contact your partner manager. 2) To participate to the Pilot phase, a pilot agreement is required. </details>
- [Process Documentation](https://docs.dev.efsta.eu/llms/efr/DE/process.md): Process documentation guide for German KassenSichV compliance, including templates in English and German.
- [Germany – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/DE/receipt-layout.md): Germany receipt layout requirements and field mapping for KassenSichV-compliant receipts using the efsta EFR.
- [Mandatory Reporting](https://docs.dev.efsta.eu/llms/efr/DE/reporting.md): Mandatory reporting requirements and EFR setup for the German cash register reporting obligation.
- [EFR Denmark](https://docs.dev.efsta.eu/llms/efr/DK.md): Quick start guide for integrating the efsta EFR in Denmark: DSRS prerequisites, setup, and fiscalisation.
- [DK Appendix](https://docs.dev.efsta.eu/llms/efr/DK/appendix.md): Appendix for the efsta EFR Denmark guide: DSRS declaration templates and additional references.
- [Denmark – Export](https://docs.dev.efsta.eu/llms/efr/DK/export.md): Data export guide for the efsta EFR in Denmark: SAF-T and DSRS audit export formats.
- [Denmark – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/DK/fiscal.md): Denmark fiscalisation requirements: DSRS, SAF-T reporting, and cash register regulation using the efsta EFR.
- [Denmark – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/DK/receipt-layout.md): Denmark receipt layout requirements and field mapping for DSRS-compliant receipts using the efsta EFR.
- [EFR Spain](https://docs.dev.efsta.eu/llms/efr/ES.md): Quick start guide for integrating the efsta EFR in Spain: TicketBAI and VERI*FACTU prerequisites and setup.
- [Spain – FAQs](https://docs.dev.efsta.eu/llms/efr/ES/faqs.md): Frequently asked questions about the efsta EFR integration in Spain.
- [Spain – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/ES/fiscal.md): Spain fiscalisation requirements: TicketBAI and VERI*FACTU compliance and configuration using the efsta EFR.
- [Receipt Layout TicketBAI](https://docs.dev.efsta.eu/llms/efr/ES/receipt-layout-ticketbai.md): Receipt layout requirements and QR code specifications for TicketBAI-compliant receipts using the efsta EFR.
- [Receipt Layout VERI*FACTU](https://docs.dev.efsta.eu/llms/efr/ES/receipt-layout-verifactu.md): Receipt layout requirements and QR code specifications for VERI*FACTU-compliant receipts using the efsta EFR.
- [TicketBAI](https://docs.dev.efsta.eu/llms/efr/ES/ticketbai.md): TicketBAI integration guide for the efsta EFR in Spain: certificate setup, LROE model, and device registration.
- [Special VAT Regimes (REDE / Simplificado)](https://docs.dev.efsta.eu/llms/efr/ES/vat-regimes.md): Spanish VAT law knows special regimes next to the general one.
- [VERI*FACTU](https://docs.dev.efsta.eu/llms/efr/ES/verifactu.md): VERI*FACTU integration guide for the efsta EFR in Spain: Declaration of Conformity and system compliance.
- [EFR France](https://docs.dev.efsta.eu/llms/efr/FR.md): Quick start guide for integrating the efsta EFR in France: NF 525 prerequisites, setup, and fiscalisation steps.
- [France – Appendix](https://docs.dev.efsta.eu/llms/efr/FR/appendix.md): Appendix for the efsta EFR France guide: additional references and supplementary technical information.
- [France – Export](https://docs.dev.efsta.eu/llms/efr/FR/export.md): Data export guide for the efsta EFR in France: fiscal archive export and integrity verification.
- [France – FAQs](https://docs.dev.efsta.eu/llms/efr/FR/faqs.md): Frequently asked questions about the efsta EFR integration in France.
- [France – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/FR/fiscal.md): France fiscalisation requirements: NF 525 compliance, fiscal archive creation, and VAT handling using the efsta EFR.
- [France – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/FR/receipt-layout.md): France receipt layout requirements and field mapping for NF 525-compliant receipts using the efsta EFR.
- [EFR Croatia](https://docs.dev.efsta.eu/llms/efr/HR.md): Quick start guide for integrating the efsta EFR in Croatia: fiskalizacija prerequisites, OIB setup, and steps.
- [Croatia – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/HR/fiscal.md): Croatia fiscalisation requirements: fiskalizacija, OIB handling, and receipt signing using the efsta EFR.
- [Croatia – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/HR/receipt-layout.md): Croatia receipt layout requirements and field mapping for fiskalizacija-compliant receipts using the efsta EFR.
- [EFR Hungary](https://docs.dev.efsta.eu/llms/efr/HU.md): Quick start guide for integrating the efsta EFR in Hungary: NAV online prerequisites, setup, and fiscalisation.
- [Hungary – Appendix](https://docs.dev.efsta.eu/llms/efr/HU/appendix.md): Appendix for the efsta EFR Hungary guide: additional references and supplementary information.
- [Hungary – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/HU/fiscal.md): Hungary fiscalisation requirements: NAV online reporting and fiscal printer configuration using the efsta EFR.
- [Hungary – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/HU/receipt-layout.md): Hungary receipt layout requirements and field mapping for NAV-compliant receipts using the efsta EFR.
- [EFR Italy](https://docs.dev.efsta.eu/llms/efr/IT.md): Quick start guide for integrating the efsta EFR in Italy: RT printer setup, SDI, and fiscalisation steps.
- [IT Appendix](https://docs.dev.efsta.eu/llms/efr/IT/appendix.md): Appendix for the efsta EFR Italy guide: additional references and supplementary technical information.
- [Italy – FAQs](https://docs.dev.efsta.eu/llms/efr/IT/faqs.md): Frequently asked questions about the efsta EFR integration in Italy.
- [Italy – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/IT/fiscal.md): Italy fiscalisation requirements: RT printer, fiscal receipt, and Agenzia delle Entrate compliance using the efsta EFR.
- [Custom Printer](https://docs.dev.efsta.eu/llms/efr/IT/fiscal_custom.md): Configuration guide for custom RT fiscal printers with the efsta EFR in Italy.
- [Epson Printer](https://docs.dev.efsta.eu/llms/efr/IT/fiscal_epson.md): Configuration guide for Epson RT fiscal printers with the efsta EFR in Italy.
- [Italy – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/IT/receipt-layout.md): Italy receipt layout requirements and field mapping for RT printer-compliant receipts using the efsta EFR.
- [efsta SSW](https://docs.dev.efsta.eu/llms/efr/IT/ssw.md): Overview of the efsta SSW (Software Solution SW) for Italy: architecture and compliance information.
- [EFR Lithuania](https://docs.dev.efsta.eu/llms/efr/LT.md): Quick start guide for integrating the efsta EFR in Lithuania: IEKA security module setup and VMI registration.
- [LT Appendix](https://docs.dev.efsta.eu/llms/efr/LT/appendix.md): Appendix for the efsta EFR Lithuania guide: additional references and supplementary information.
- [Lithuania – FAQs](https://docs.dev.efsta.eu/llms/efr/LT/faq.md): Frequently asked questions about the efsta EFR integration in Lithuania.
- [Lithuania – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/LT/fiscal.md): Lithuania fiscalisation requirements: IEKA security module, VMI reporting, and VAT handling using the efsta EFR.
- [Lithuania – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/LT/receipt-layout.md): Lithuania receipt layout requirements and field mapping for VMI-compliant receipts using the efsta EFR.
- [EFR Norway](https://docs.dev.efsta.eu/llms/efr/NO.md): Quick start guide for integrating the efsta EFR in Norway: SAF-T prerequisites, NUF registration, and setup.
- [NO Appendix](https://docs.dev.efsta.eu/llms/efr/NO/appendix.md): Appendix for the efsta EFR Norway guide: additional references and supplementary information.
- [Norway – Export](https://docs.dev.efsta.eu/llms/efr/NO/export.md): Data export guide for the efsta EFR in Norway: SAF-T audit export format and configuration.
- [Norway – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/NO/fiscal.md): Norway fiscalisation requirements: SAF-T, cash register regulation, and audit export using the efsta EFR.
- [Norway – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/NO/receipt-layout.md): Norway receipt layout requirements and field mapping for SAF-T-compliant receipts using the efsta EFR.
- [EFR Poland](https://docs.dev.efsta.eu/llms/efr/PL.md): Quick start guide for integrating the efsta EFR in Poland: fiscal printer setup, JPK, and fiscalisation steps.
- [Poland – Appendix](https://docs.dev.efsta.eu/llms/efr/PL/appendix.md): Appendix for the efsta EFR Poland guide: additional references and supplementary technical information.
- [Poland – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/PL/fiscal.md): Poland fiscalisation requirements: fiscal printer setup, JPK reporting, and VAT handling using the efsta EFR.
- [Poland – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/PL/receipt-layout.md): Poland receipt layout requirements and field mapping for fiscal printer-compliant receipts using the efsta EFR.
- [EFR Portugal Guide](https://docs.dev.efsta.eu/llms/efr/PT.md): Guide to the efsta EFR implementation for Portugal: SAF-T fiscalisation requirements and integration.
- [Portugal - SimplePOS Guidelines](https://docs.dev.efsta.eu/llms/efr/PT/simplePOS.md): efsta SimplePOS guidelines for Portugal: lightweight POS fiscalisation using the efsta EFR.
- [Quick Start](https://docs.dev.efsta.eu/llms/efr/SE.md): Quick start guide for integrating the efsta EFR in Sweden: control system setup, Infrasec TCS, and registration.
- [Sweden – Export](https://docs.dev.efsta.eu/llms/efr/SE/export.md): Data export guide for the efsta EFR in Sweden: control system export format and audit data.
- [Sweden – FAQs](https://docs.dev.efsta.eu/llms/efr/SE/faqs.md): Frequently asked questions about the efsta EFR integration in Sweden.
- [Sweden – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/SE/fiscal.md): Sweden fiscalisation requirements: control system, Skatteverket reporting, and receipt rules using the efsta EFR.
- [Sweden – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/SE/receipt-layout.md): Sweden receipt layout requirements and field mapping for Skatteverket-compliant receipts using the efsta EFR.
- [EFR Slovenia](https://docs.dev.efsta.eu/llms/efr/SI.md): Quick start guide for integrating the efsta EFR in Slovenia: fiskalizacija prerequisites, FURS setup, and steps.
- [Slovenia – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/SI/fiscal.md): Slovenia fiscalisation requirements: fiskalizacija, FURS registration, and receipt handling using the efsta EFR.
- [Slovenia – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/SI/receipt-layout.md): Slovenia receipt layout requirements and field mapping for fiskalizacija-compliant receipts using the efsta EFR.
- [EFR Slovakia](https://docs.dev.efsta.eu/llms/efr/SK.md): Quick start guide for integrating the efsta EFR in Slovakia: eKasa prerequisites, VRP setup, and fiscalisation.
- [SK Appendix](https://docs.dev.efsta.eu/llms/efr/SK/appendix.md): Appendix for the efsta EFR Slovakia guide: additional references and supplementary information.
- [Slovakia – Fiscal Requirements](https://docs.dev.efsta.eu/llms/efr/SK/fiscal.md): Slovakia fiscalisation requirements: eKasa registration, VRP setup, and receipt rules using the efsta EFR.
- [Slovakia – Receipt Layout](https://docs.dev.efsta.eu/llms/efr/SK/receipt-layout.md): Slovakia receipt layout requirements and field mapping for eKasa-compliant receipts using the efsta EFR.

## E-invoicing

- [E-Invoicing System](https://docs.dev.efsta.eu/llms/e_invoicing.md): Overview of the efsta E-Invoicing system, supported countries, and integration options.
- [E-Invoicing | Additional Properties](https://docs.dev.efsta.eu/llms/e_invoicing/api/additional.md): Additional UBL properties and E-Invoicing configuration fields supported by the efsta EFR.
- [E-Invoicing | General API Information](https://docs.dev.efsta.eu/llms/e_invoicing/api/general.md): General API reference for efsta E-Invoicing: endpoints, request/response formats, and delivery options.
- [E-Invoicing | Architecture](https://docs.dev.efsta.eu/llms/e_invoicing/architecture.md): Technical architecture of the efsta E-Invoicing system, including components and data flows.
- [E-Invoicing | Belgium](https://docs.dev.efsta.eu/llms/e_invoicing/country-specific/BE.md): Country-specific E-Invoicing requirements and Peppol configuration for Belgium using the efsta EFR.
- [E-Invoicing | Germany](https://docs.dev.efsta.eu/llms/e_invoicing/country-specific/DE.md): Country-specific E-Invoicing requirements for Germany (XRechnung, Peppol B2B/B2G) using the efsta EFR.
- [E-Invoicing | France](https://docs.dev.efsta.eu/llms/e_invoicing/country-specific/FR.md): B2B E-Invoices are exchanged over the Peppol-Network through a certified platform, while B2C and cross-border transactions are transmitted to the tax administration (DGFiP) via E-Reporting.
- [E-Invoicing | Italy](https://docs.dev.efsta.eu/llms/e_invoicing/country-specific/IT.md): Country-specific E-Invoicing requirements for Italy (SDI, regulatory-compliant preservation) using the efsta EFR.
- [E-Invoicing | Poland](https://docs.dev.efsta.eu/llms/e_invoicing/country-specific/PL.md): Country-specific E-Invoicing requirements for Poland (KSeF authentication, certificates) using the efsta EFR.
- [Poland E-Invoicing FAQs](https://docs.dev.efsta.eu/llms/e_invoicing/faqs/PL.md): Frequently asked questions about E-Invoicing in Poland (KSeF) using the efsta EFR.
- [certificate](https://docs.dev.efsta.eu/llms/e_invoicing/imports/certificate.md): The efsta Portal only allows the simultaneous installation of both Authentication and Offline certificates, as both are needed in order for KSeF to properly function with the efsta infrastructure.
- [E-Invoicing | Quick Start Guide](https://docs.dev.efsta.eu/llms/e_invoicing/quickstart.md): Step-by-step guide to enabling, configuring, and sending E-Invoices using the efsta EFR integration.
- [E-Invoicing | Use Cases](https://docs.dev.efsta.eu/llms/e_invoicing/usecases.md): Common E-Invoicing use cases supported by the efsta EFR, with examples for supported countries.

## Optional

- [Changelog](https://docs.dev.efsta.eu/llms/bill/Changelog.md)
- [Company Options](https://docs.dev.efsta.eu/llms/bill/Management/CompanyOptions.md): Company settings and configuration options in the efsta Digital Bill management portal.
- [Company Overview](https://docs.dev.efsta.eu/llms/bill/Management/CompanyOverview.md): Overview of company management features in the efsta Digital Bill portal.
- [Customer Cards](https://docs.dev.efsta.eu/llms/bill/Management/CustomerCardOptions.md): Customer card configuration options in the efsta Digital Bill management portal.
- [Dashboard](https://docs.dev.efsta.eu/llms/bill/Management/Dashboard.md): Overview of the efsta Digital Bill dashboard: monitoring receipt activity and system status.
- [Dynamic Content / Formulas](https://docs.dev.efsta.eu/llms/bill/Management/DynamicContent.md): Extended access to data from lists (e.g. from positions, head or foot) can be made using square brackets (e.g. ={ESR.Foot[1]}) where the counting starts at 0 for the first element.
- [Introduction of Management UI](https://docs.dev.efsta.eu/llms/bill/Management/Introduction.md): Introduction to the efsta Digital Bill management portal: features, access, and initial configuration.
- [Layout Options](https://docs.dev.efsta.eu/llms/bill/Management/LayoutOptions.md): Layout configuration options for digital receipts in the efsta Digital Bill management portal.
- [QuickStart](https://docs.dev.efsta.eu/llms/bill/Management/QuickStart.md): Quick start guide for the efsta Digital Bill management portal: first steps to create and deploy digital receipts.
- [Simple Bill - Layout Sections](https://docs.dev.efsta.eu/llms/bill/Management/SimpleBill/LayoutSections.md): Similar to QR codes, additional information in the form of a barcode can be added to any part of the receipt.
- [Simple Bill - View Options](https://docs.dev.efsta.eu/llms/bill/Management/SimpleBill/ViewOptions.md): This section allows you to choose one of three different layouts, each designed for specific devices and print formats.
- [Smart Bill - Feedback](https://docs.dev.efsta.eu/llms/bill/Management/SmartBill/Feedback.md): Customers can rate their experience and post comments until the ned of the following month after the bill's creation date (i.e. a bill created on 15.03.2024 can be rated until 30.04.2024).
- [Smart Bill - Importing data](https://docs.dev.efsta.eu/llms/bill/Management/SmartBill/Imports.md): M: mandatory properties are marked with X
- [Smart Bill - Layout Sections](https://docs.dev.efsta.eu/llms/bill/Management/SmartBill/LayoutSections.md): The Smart Bill default sections are the sections that are provided by the Bill itself and contain data based on the raw information stored in the ESR or (partially) on the enriched data (e.g. the i...
- [Smart Bill - Location Details](https://docs.dev.efsta.eu/llms/bill/Management/SmartBill/LocationDetails.md): To allow additional information for the contact detail section of the Smart Bill, location details can be maintained.
- [Smart Bill - Quickstart Guide](https://docs.dev.efsta.eu/llms/bill/Management/SmartBill/QuickStart.md): Quick start guide for efsta SmartBill: setting up smart digital receipts for your business.
- [Billing](https://docs.dev.efsta.eu/llms/faq/billing.md): Frequently asked questions about efsta billing: subscription plans, invoices, and account management.
- [Austria – Frequently Asked Questions](https://docs.dev.efsta.eu/llms/faq/countries/austria.md): Frequently asked questions about efsta EFR fiscalisation in Austria: certificates, FinanzOnline, and common errors.
- [Belgium – Frequently Asked Questions](https://docs.dev.efsta.eu/llms/faq/countries/belgium.md): Frequently asked questions about efsta EFR fiscalisation in Belgium: FDM setup, certification, and compliance.
- [France – Frequently Asked Questions](https://docs.dev.efsta.eu/llms/faq/countries/france.md): Frequently asked questions about efsta EFR fiscalisation in France: NF 525 compliance, archiving, and setup.
- [Germany – Frequently Asked Questions](https://docs.dev.efsta.eu/llms/faq/countries/germany.md): Frequently asked questions about efsta EFR fiscalisation in Germany: TSE, KassenSichV, and DSFinV-K compliance.
- [Italy – Frequently Asked Questions](https://docs.dev.efsta.eu/llms/faq/countries/italy.md): Frequently asked questions about efsta EFR fiscalisation in Italy: RT printers, SDI, and fiscal receipt handling.
- [Lithuania – Frequently Asked Questions](https://docs.dev.efsta.eu/llms/faq/countries/lithuania.md): Frequently asked questions about efsta EFR fiscalisation in Lithuania: IEKA security module and VMI reporting.
- [Portugal – Frequently Asked Questions](https://docs.dev.efsta.eu/llms/faq/countries/portugal.md): Frequently asked questions about efsta EFR fiscalisation in Portugal: SAF-T requirements and integration.
- [Spain – Frequently Asked Questions](https://docs.dev.efsta.eu/llms/faq/countries/spain.md): Frequently asked questions about efsta EFR fiscalisation in Spain: TicketBAI, VERI*FACTU, and certification.
- [Sweden – Frequently Asked Questions](https://docs.dev.efsta.eu/llms/faq/countries/sweden.md): Frequently asked questions about efsta EFR fiscalisation in Sweden: control system, Skatteverket rules, and registration.
- [Digital Receipt](https://docs.dev.efsta.eu/llms/faq/digital-receipt.md): Frequently asked questions about the efsta Digital Receipt solution: setup, configuration, and end-user usage.
- [EFR](https://docs.dev.efsta.eu/llms/faq/efr.md): Frequently asked questions about the efsta EFR: API usage, error codes, and general integration topics.
- [Poland E-Invoicing](https://docs.dev.efsta.eu/llms/faq/einvoicing/poland-einvoicing.md): Frequently asked questions about E-Invoicing in Poland using the efsta EFR: KSeF authentication and certificates.
- [Escalation Topics](https://docs.dev.efsta.eu/llms/faq/escalation-topics.md)
- [Portal](https://docs.dev.efsta.eu/llms/faq/portal.md): Frequently asked questions about the efsta Portal: company management, configuration, and user access.