This is a worked example of how a firm of this type uses Advoca. Names and figures are fictitious.
The situation
A firm that advises SMEs on company law, contracts and acquisitions. Clients are businesses, some of them in the Netherlands or France. Many matters run on a fixed fee or with a budget.
How the firm uses Advoca
- Contacts with VAT and company number (KBO-nummer / numéro BCE), billing email address, default VAT regime and payment term per client.
- Intra-Community service: for a Dutch company the firm chooses the regime with the wording Art. 21 §2 of the Belgian VAT Code; Advoca applies 0%.
- Fixed fee and budget: per matter a fixed fee or a maximum budget with an alert percentage, so the firm can see when the budget is running out.
- E-invoicing: every invoice also exists as a UBL file with the firm's and the client's details; the firm sends it via its Peppol access point.
- Credit notes for corrections, referring to the original invoice.
B2B invoicing in 2026
Since 1 January 2026, invoices to Belgian businesses must be issued as structured e-invoices, by default via Peppol. The firm therefore records the VAT number of every business client and checks its own firm details; Advoca refuses to send an invoice without the firm's address and VAT number. Read the Peppol guide.
Which plan?
Advanced or Advanced+.
Get started in fifteen minutes
- Create your firm at secure.advoca.io: 30 days free, without a payment card.
- Fill in the Firm details: address, VAT number, IBAN. Your invoices can then go out straight away.
- Invite your colleagues with the right role (Team).
- Create the contacts and ongoing matters; the conflict check works from the very first party.
- Enter the key deadlines in each matter and upload the documents you need.
- Record your first time entries with a timer, and create your first invoices at the end of the month.