Invoicing built for Belgium.

Structured UBL with the Belgian elements, validated against the official Helger schematron before it ever leaves the app. Invalid invoices are stopped at the gate, not rejected downstream.

Invoice sequences are row-locked at the database and nothing is ever hard-deleted. Your numbering survives concurrency, crashes, and audits.

Send a quote, follow it through accepted, rejected or expired, and convert it in one step. Lines, client and totals carry across instead of being retyped.

Corrections issue as proper credit notes against the original invoice. Payments book against the balance, partial ones included, so what shows as outstanding is what is actually outstanding.

Record what you spend and review it before it counts. Your VAT position reflects both sides of the ledger, not just what you invoiced.

Multi-rate VAT handled properly, with a reporting screen that reflects what you actually invoiced — not a spreadsheet you rebuild every quarter.

Revenue by month, VAT position, payment behaviour, and breakdowns per client and per product. Every figure is derived from your invoices, not from a summary you keep by hand.

Products and services with their units, prices and VAT rates, reused across invoices and quotes. Set the rate once rather than remembering it on every line.

Templates are versioned and published, so changing your layout never rewrites documents you already sent. Every invoice renders to a PDF that holds up in the real world — already used in production through Belgian document delivery workflows.

One box over invoices, credit notes, clients and products — for when you have half an invoice number off a bank statement and need the rest.

Real multi-tenancy, tested. One account, many companies, strictly separated — built for accountants running books for dozens of businesses.

Run it in the browser, or run the desktop app with your data in a local database on your own machine. Same product either way — your choice where the data lives.