

InkVoice is invoicing software for creating professional PDF invoices with features like client management, payment tracking, multi-currency support, tax calculations, and automatic invoice numbering. Invoices can be emailed directly to clients without third-party email setup. The recurring invoice system automates billing on customizable schedules, while reminder sequences notify clients before due dates, on due dates, and for overdue payments. A financial dashboard provides insights into revenue, outstanding balances, and overdue payments, with visual charts tracking revenue trends. Team collaboration tools enable shared workspaces with role-based permissions. Payment tracking supports partial and full payments, updating invoice statuses automatically. Additional tools include a free no signup invoice generator, VAT calculators, and XRechnung XML for e-invoicing compliance.

German e-invoicing, as MCP tools. Build a valid XRechnung 3.x (EN 16931, CII syntax) from invoice details, check an existing XRechnung or ZUGFeRD file and get back what is actually wrong with it, verify a Leitweg-ID down to its ISO 7064 check digit, and convert between net, tax and gross at any VAT rate. Everything here is anonymous, stateless and free. No account, no API key, nothing stored. A personal access token from an InkVoice account adds that account's own clients and invoices to the same URL. Also exposes a knowledge resource covering the German mandate timeline (receiving since 2025, issuing from 2027/2028), the § 14 UStG mandatory invoice fields, the § 33 UStDV small-amount threshold, how § 19 UStG Kleinunternehmer are treated, and which ZUGFeRD profiles do not qualify as an e-invoice at all. Maintained by InkVoice, which runs the same generator in production. Its output is checked against the official KoSIT Prüftool in CI.
Inkvoice is a vendor specializing in invoicing and billing solutions designed to streamline financial processes for businesses. Their platform offers features such as customizable invoice templates, automated billing, and expense tracking, aimed at enhancing efficiency and accuracy in financial management. Inkvoice caters to a variety of industries, providing tools that help businesses manage their cash flow and improve client relationships through professional invoicing practices.