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Your accounting firm, one click away.

Bookkeeping, tax, payroll, legal and advice: choose your services, see the price straight away and order online. For a tailored file, request a free quote and get an answer within 48 hours.

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Working at the firm?

Sign in to Silicon ioi to open your files, the monitor and ioi Smart Demat.

Most requested services

Fixed prices, excl. VAT, no surprises.

See all

How it works

Four steps, no appointment unless you need one.

  • 1. Choose

    Browse the sections: each service shows its price or says « on quote ».

  • 2. Order or request a quote

    Fixed-price services are ordered directly; the others become a quote request.

  • 3. Send your documents

    Scan your documents with ioi Smart Demat: they land straight in your file.

  • 4. Follow your file

    Questions, documents and approvals in your ioi Chat room shared with the team.

Illustration: a laptop synchronised with the cloud

An accounting firm connected to your ERP

The sales and purchase invoices you record in Silicon ioi reach us automatically, with no export or e-mail. We follow your activity in real time and warn you before deadlines.

The result: less paper, returns filed on time and advice based on up-to-date figures.

A special case?

Inheritance, crypto-assets, tax audit, business takeover: describe your situation and get a clear offer within 48 hours.

Frequently asked questions

Another question? Call us on +32 4 221 48 60.

Are prices excluding VAT?

Yes, all prices exclude VAT (21%). VAT is added on the invoice.

What does « from » mean?

It is the minimum price of the service. We confirm the final amount before we start, depending on the size of your file.

How does an « on quote » service work?

Add it to the cart in quote mode and send your request: you receive a detailed, no-commitment offer within 48 hours.

What is the base package?

Bookkeeping, VAT returns, customer listing, annual accounts and the corporate or personal tax return are grouped in a monthly package based on your volume. Request your package quote.

Do I need to be a client to order?

No: open an online account with your company number. We activate it within one working day.

How does invoicing work?

Services are invoiced on completion, payable within 30 days by bank transfer. Your invoice also arrives via Peppol.