E-Invoicing
Generate, validate and view XRechnung and ZUGFeRD files per EN 16931, plus an obligation check — for the B2G/B2B e-invoicing mandate.
All tools in this category
XRechnung Generator
Generate XRechnung XML (UBL) per EN 16931 / XRechnung 3.0 from your invoice data — B2G-compliant.
ZUGFeRD Generator
Generate a ZUGFeRD/Factur-X PDF with embedded EN 16931 XML — human-readable and machine-readable at once.
E-Invoice Viewer
Upload an XRechnung/ZUGFeRD file and view it in readable form — entirely in the browser, no server upload.
E-Invoicing Obligation Check
Find out in a few questions when you must be able to receive and issue e-invoices (§14 UStG, Germany).
E-Invoice Validator
Checks an XRechnung/ZUGFeRD file against the EN 16931 mandatory fields — a pre-check, not a replacement for the official KoSIT validator.
Good to know about this category
Calculators, generators and templates for invoicing, e-invoicing, cost calculation and business planning — for freelancers and small businesses.
So typical administrative tasks can be handled without expensive accounting software.
- Create quotes and invoices
- Calculate revenue, profit and break-even
- Generate XRechnung and ZUGFeRD
- Keep a cash book and sketch a business plan
- Review results before sending them out
- Additionally back up important documents locally
- Consult a tax advisor for tax-related questions
The information, templates, scripts, calculations and recommendations provided are intended for educational and assistance purposes only. Always review and test any generated result before production use. IT Smart Service accepts no liability for misuse, data loss, outages, security incidents, or legal, financial or technical damages arising from incorrect or improper use. Responsibility for validation, testing and deployment decisions rests with the user.
Related Categories
Create invoices, quotes, delivery notes and other business documents in a legally compliant way — with a customer database and automatic document chaining.
Revenue, profit and tax calculators, cash book, digital cash register and TSE reporting assistant — everything around ongoing bookkeeping and cash management in one place.
Company profile, customer database, products/services and backup — the foundation for all other business tools, plus payment transactions and reports coming soon.
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