Professional E-Invoicing for Germany & EU

NCS E-Rechnung is the complete e-invoicing solution for Dolibarr, specifically developed for German and EU requirements.

Key Features

• ✅ X-Rechnung 3.0 XML (UBL 2.1 and CII format) - Latest standard!
• ✅ Local validation (fast XML schema check) - NEW!
• ✅ Online validation (KoSIT-compliant via evalid.netcorsoft.eu) - NEW!
• ✅ Validator server included (SSL-secured) - NEW!
• ✅ ZUGFeRD 2.2 (PDF/A-3 with embedded XML)
• ✅ Factur-X (EN 16931 profile)
• ✅ Automatic generation when creating invoices
• ✅ Import supplier invoices (XML & ZUGFeRD PDF)
• ✅ 100% EN 16931 compliant
• ✅ Enterprise security (XXE protection, file limits) - NEW!
• ✅ Leitweg-ID support (for German authorities)
• ✅ Multilingual: DE, EN, FR, ES, IT

Perfect for

• 🇩🇪 German B2B businesses (e-invoice mandatory from 2025)
• 🏛️ Companies invoicing government agencies (B2G)
• 🌍 EU-wide invoicing (PEPPOL, Factur-X)

Installation

1. Download ZIP file
2. In Dolibarr: Home → System → Modules → Deploy external module
3. Upload ZIP and activate
4. Configure in Setup → Enable Auto-generate XML
5. Done! X-Rechnungen are now created automatically

Technical Requirements

• Dolibarr ≥ 13.0 (recommended: ≥ 16.0)
• PHP ≥ 7.4 (recommended: ≥ 8.0)
• Extensions: xml, dom, zip

Support

• 30 days email support included
• German & English support
• Complete documentation in 5 languages
• Premium support available (€99/year)

License

GPL v3 (Open Source) - Full source code access

🚀 NCS E-Rechnung vx.x.x - Why Buy?

The E-Invoicing Mandate is Here - Are You Ready?

Starting in 2025, electronic invoicing is mandatory for B2B transactions in Germany. Authorities already require X-Rechnungen. Without a compliant solution, you risk:

❌ Rejection of your invoices
❌ Payment delays
❌ Fines and penalties
❌ Loss of contracts

✅ With NCS E-Rechnung, You Are Safe!

Full Compliance

• ✅ X-Rechnung 3.0 (UBL 2.1 & CII) - ⭐ Latest standard for authorities!
• ✅ ZUGFeRD 2.2 (PDF/A-3) - For B2B customers
• ✅ Factur-X (EN 16931) - For international partners
• ✅ 100% EN 16931 compliant - Legally secure
• ✅ Optional Online Validation - ⭐ NEW! evalid.netcorsoft.eu (KoSIT-compliant)

Automation Saves Time & Money

• ⏱️ Automatic XML Generation - No more manual work
• ⏱️ Auto-Import of supplier invoices - Saves hours
• ⏱️ One Click - Done!

Buy Once, Use Forever

• 💰 Only €150 one-time - No mandatory monthly subscriptions!
• 💰 Unlimited Invoices - No limits
• 💰 Unlimited Installation - On your own Dolibarr systems

🆚 Comparison: NCS E-Rechnung

Secure comprehensive compliance for your business.

💡 Calculation Example (5 Years):

NCS E-Rechnung: €150 one-time = €150 total External Platform: €20/month × 60 months = €1.200 total —

💎 What Makes NCS E-Rechnung Special?

1. German Compliance - Perfectly Implemented

Developed for the German market with all special cases: - Leitweg-ID for authorities - Buyer-Reference for B2B - Project ID & Contract Number - Delivery Date & Payment Terms

2. Plug & Play - Ready in 5 Minutes

1. Upload ZIP
2. Activate module
3. Save settings
4. Done!

3. Open Source & Autonomous - Full Control

• Runs 100% locally on your server
• Source code is accessible
• No dependency on a provider
• GPL v3 License

4. Professional Support

• 30 days email support included
• Complete documentation
• Optional: Premium Support for €99/year

🎯 Who is NCS E-Rechnung For?

✅ Perfect for:

• Companies with government contracts (B2G)
• B2B businesses (mandatory from 2025!)
• Small to medium enterprises
• Dolibarr users seeking full compliance (Import & Export)
• Privacy-conscious companies (no forced cloud!)

⚠️ Not ideal for:

• Purely B2C businesses (not yet mandatory)
• Companies without Dolibarr
• Those who do not need electronic invoices

📊 Return on Investment (ROI)

Time savings per invoice (Import & Export):

• Manual XML creation / typing: ~15 minutes
• With NCS E-Rechnung: 0 minutes (automatic)

With 20 invoices per month:

• Time saved: 5 hours/month = 60 hours/year
• At €50/hour: €3,000 value/year

Plugin Cost: €150
Amortization: After ~2-3 invoices! ✅

🚀 Buy Now and Get Started!

What You Get:

✅ Complete Plugin (ncsxrechnung-1.1.0.zip)

✅ 30 Days Email Support

✅ Updates for 1 Year

✅ Documentation in 5 languages

✅ Installation Guide

✅ Open Source (GPL v3)

Price: Only €150 one-time

No hidden costs! No cloud subscriptions! No limits!

💳 Payment Methods

• 🏦 Bank Transfer (SEPA)
• 💳 Credit Card (Visa, Mastercard)
• 💰 PayPal

After payment, you will receive within 24 hours: - Download link via email - Invoice (as an X-Rechnung, of course! 😉) - Installation support

❓ Frequently Asked Questions

Does the plugin work with my Dolibarr version?

From Dolibarr 13.0 upwards. Recommended: 16.0+

Can I test the plugin?

Unfortunately, no. But: 14-day right of withdrawal! (Note: Expires upon download).

What happens after 1 year?

The module continues to run indefinitely! Updates are optional: By repurchasing or Premium Support (€99/year).

Can I customize the plugin?

Yes! GPL v3 allows free customization.

Is my data sent to the cloud?

Basically No! Everything runs locally on your server. Sole exception: You actively click the optional online validation function.

📞 Contact & Ordering

NetCorSoft 🌐 Website: https://www.netcorsoft.de
📧 Sales: sales@netcorsoft.de
📧 Support: support@netcorsoft.de

Order: Email to sales@netcorsoft.eu with subject “Buy NCS E-Rechnung”

⚡ Last Chance: Introductory Offer!

Only now: €150 instead of €199!

(Introductory price valid until 31.12.2026)

✅ Order Now!

Email: sales@netcorsoft.de
Subject: NCS E-Rechnung Order

We will reply within 24 hours!

Copyright © 2026 NetCorSoft Made in Germany with ❤️ by NetCorSoft

Support Policy

NCS E-Rechnung Plugin

NetCorSoft | Version: x.x.x | Date: March 2026

Basic Support (30 days included)

What is included?

✅ Email support (support@netcorsoft.eu)
✅ Installation help - Assistance with plugin installation
✅ Configuration support - Help with local settings
✅ Technical questions - Answering questions about usage
✅ Bug reports - Reporting of local errors in the software

Response times

• Business days (Mon-Fri): 48 hours
• Weekend/Holidays: No processing

Support languages

• German
• English

Validity

30 days from purchase date

How to create a support ticket

1. Email to: support@netcorsoft.de
2. Subject: NCS E-Rechnung Support - [Your Problem]
3. Content:
   • Purchase date
   • Dolibarr version
   • PHP version
   • Detailed error description
   • Screenshots (optional)
   • Log files (if available)

Premium Support (€99/year optional)

Additional features

✅ Unlimited support - No ticket limits
✅ Phone support - Direct phone help
✅ Priority processing - Your tickets have priority
✅ 24h response time - Even on weekends
✅ Guaranteed updates - All updates for the core software free
✅ Priority bugfixes - Your bugs are prioritized
✅ Customizations - Up to 1 hour per year included

Response times

• Business days: 24 hours
• Weekend: 48 hours
• Critical bugs: As soon as possible

Booking

Email to: sales@netcorsoft.de
Subject: Premium Support Booking

What is NOT included in support?

❌ Availability of the voluntary online validator (Operation of evalid.netcorsoft.eu is strictly optional and downtimes do not constitute a support case)
❌ Individual developments (chargeable, from €120/hour)
❌ Tax advice (consult a tax advisor)
❌ Legal advice (consult a lawyer)
❌ Dolibarr basics (see Dolibarr documentation)
❌ Server administration (not our responsibility)
❌ Custom workflow adaptations (chargeable)

Bug Reports

What is a bug?

A bug is present when: - The local plugin does not perform the documented core functions - Errors occur that make invoicing operations impossible - Security vulnerabilities are present in the code

How do I report a bug?

1. Check: Is it really a bug or a user error?
2. Reproduce: Can you reproduce the error on your system?
3. Email: support@netcorsoft.de
4. Provide:
   • Exact steps to reproduce
   • Expected behavior
   • Actual behavior
   • Screenshots/log files
   • Dolibarr & PHP version

Processing time

• Critical bugs: 1-3 business days
• Normal bugs: 5-10 business days
• Minor bugs: Next update

Feature Requests

Do you have an idea for a new feature?

Free: Submit your idea - we will review it for inclusion in future versions

Paid: Development of special features from €120/hour

Contact

NetCorSoft 📧 Support: support@netcorsoft.de
📧 Sales: sales@netcorsoft.de
🌐 Website: https://www.netcorsoft.de

Copyright © 2026 NetCorSoft Made in Germany with ❤️ by NetCorSoft

Terms and Conditions

NCS E-Rechnung Plugin - One-time Purchase

NetCorSoft | Date: March 2026 | Version: 1.1.0

§1 Scope

These Terms and Conditions apply to the purchase and use of the Dolibarr plugin “NCS E-Rechnung” (hereinafter “Software”) from NetCorSoft (hereinafter “Provider”).

§2 Subject Matter

1. The subject matter of the contract is the provision of the software “NCS E-Rechnung” version x.x.x as a ZIP file for download.

2. The software is a locally running Dolibarr plugin for creating and processing X-Rechnung, ZUGFeRD, and Factur-X electronic invoices.

3. The software is licensed under GPL v3 (GNU General Public License Version 3). Full license text: https://www.gnu.org/licenses/gpl-3.0.html

4. The contract includes:

• Download access to the software (ZIP file)
• 30 days email support
• Access to updates and bugfixes for 1 year
• Documentation in 5 languages (DE, EN, FR, ES, IT)

1. Voluntary Additional Services: An optional online validator (evalid.netcorsoft.eu) is provided as a voluntary additional service “as is”. This service is explicitly not a owed part of the main contract and is not mandatory for the core function of the software.

§3 Price and Payment

1. The purchase price is €150.00 (one-time, plus applicable VAT).

2. Payment methods:

• Bank transfer
• PayPal
• Credit card

§4 License and Usage Rights

1. The software is licensed under GPL v3.

2. The customer may:

• Use the software
• Copy and distribute the software
• Modify and adapt the software
• Distribute modified versions (also under GPL v3)

1. The customer may use the software on unlimited own Dolibarr installations.

2. Usage of the local software is unlimited in time.

§5 Support and Updates

Basic Support (30 days included)

• Email support for installation and configuration
• Response time: 48 hours (business days)

Updates (1 year included)

• Bugfixes and security updates
• Compatibility updates
• Feature updates may be included but are not guaranteed

Premium Support (€99/year optional)

• Unlimited email & phone support
• Response time: 24 hours
• Guaranteed updates
• Priority bugfixes
• Included customizations (up to 1 hour/year)

Discontinuation of Support and Development (Exit Clause)

Important Notice: The provider reserves the right to discontinue development, distribution, support for the plugin, and any voluntary online services (specifically the optional online validator evalid.netcorsoft.eu) at any time, without replacement, and without stating reasons.

In case of discontinuation: - Already paid premium support will be refunded proportionally - The locally running plugin remains usable under GPL v3 without time limits - The source code remains open and available - Customers can continue development themselves or have it adapted by third parties

The provider is not obligated to: - Provide permanent updates or new versions - Provide support beyond the agreed period - Adapt the plugin for future Dolibarr versions - Implement future legal format changes (e.g., new ZUGFeRD versions) - Permanently operate the voluntary online validator

§6 Warranty

1. Statutory warranty rights apply (2 years from delivery).

2. The software is provided “as is”. The provider does not warrant:

• Error-free and uninterrupted operation in every server environment
• Compatibility with all future Dolibarr versions or third-party plugins
• Tax or legal correctness of generated documents
• The permanent availability of the optional online validator

§7 Liability

1. The provider is fully liable for intent and gross negligence.

2. For slight negligence, liability is limited to:

• Breach of essential contractual obligations
• Contractually foreseeable damage
• Maximum amount of the purchase price (€150)

1. Limitation of liability:

The provider is not liable for: - Indirect damages or consequential damages - Lost profits - Data loss (if avoidable through appropriate backup) - Tax or legal errors in generated invoices - Downtime, unavailability, or permanent shutdown of the voluntary online validator - Damages from improper use or modification of the open software

1. The customer is solely responsible for:

• Final verification of generated invoices for content and legal correctness
• Compliance with tax and legal requirements (e.g., retention periods)
• Regular data backup

§8 Right of Withdrawal (for consumers)

Consumers have a 14-day right of withdrawal. B2B customers are excluded from this right.

Note: The right of withdrawal expires prematurely upon the successful download of the digital content and start of use of the software!

§9 Applicable Law

1. German law applies, excluding the UN Convention on Contracts for the International Sale of Goods (CISG).

2. Contract language is English. In case of translations, the German version is authoritative.

Contact

NetCorSoft Email: info@netcorsoft.de
Support: support@netcorsoft.de
Website: https://www.netcorsoft.de

Copyright © 2026 NetCorSoft Made in Germany with ❤️ by NetCorSoft

Disclaimer

NCS E-Rechnung Plugin

NetCorSoft | Version: 1.1.0 | Date: March 2026

Disclaimer

This plugin is a locally running software and is provided “AS IS” without any warranty.

NetCorSoft is not liable for:

1. Tax and legal correctness of generated invoices or rejection by authorities
2. Technical functionality, error-free operation, or future compatibility
3. Availability of the optional online validator (evalid.netcorsoft.eu)
4. Financial damages, business interruptions, or lost profits
5. Data security or data loss on your systems

Your Responsibility

You are fully responsible for:

✅ Invoice verification: Check every generated invoice before sending
✅ Legal compliance: Compliance with all tax and legal regulations (e.g., retention periods)
✅ Data backup: Regular backups of your Dolibarr database and file system
✅ Testing: Test the software extensively before production use
✅ Consultation: Consult a tax advisor or lawyer if unsure

Recommendations

1. Test the plugin thoroughly in a staging environment before production use
2. Have generated invoices reviewed by a certified tax advisor
3. Use official government XRechnung validators for legally binding checks
4. Create full backups before installation

Statutory Rights

This disclaimer does not affect: - Statutory warranty rights (2 years) - Liability for intent and gross negligence - Liability for personal injury - Product liability

Contact

For questions or issues:

NetCorSoft 📧 Email: support@netcorsoft.de
🌐 Website: https://www.netcorsoft.de

Copyright © 2026 NetCorSoft Made in Germany with ❤️ by NetCorSoft