D[#]KUS

Your Finances. Your Server. Your Rules.

Open-source PEPPOL-compliant invoicing with an AI that knows Belgian tax law.

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until the revelation
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Total control on your own hardware. AGPLv3.

Finally, an AI that speaks Belgian Tax

Trained on Belgian corporate law, tax codes, and PEPPOL requirements.

Can I deduct this lunch with a client?
Yes, 69% deductible as restaurant costs under Belgian tax code. I'll categorize it correctly.
When is my next VAT deadline?
Q4 VAT is due January 20. You'll owe approximately €3,450 based on the current quarter.
Am I better as BV or freelancer?
At your €95k revenue, a BV saves ~€4,200/year after costs. Want the full breakdown?
Belgian tax code trained
BV/SRL regulations
VAT calculations
Deduction optimization
Liquidation reserve advice
Real-time tax estimates

  • What if you owned everything?

    Your data, your server, your rules. True ownership means you are in control.

  • PEPPOL-Native

    Built-in compliance from day one. Generate UBL invoices, connect to access points, handle Belgian e-invoicing requirements automatically.

  • What if freedom was permanent?

    Self-host for €0. Or let us manage it for you. AI included in both.

Everything You Need

Chat with your tax AI
PEPPOL-compliant invoices
Manage clients & expenses
Upload & organize documents
Native apps for every platform
Bank transaction matching
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December 2025

PEPPOL-Ready Launch

Full compliance + AI tax advisor.

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January 1, 2026

PEPPOL Becomes Mandatory

You're already prepared.

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Q1 2026

Complete Suite Release

Bank integration, inventory management, enhanced AI insights - everything drops Q1.

Why a Private, Local AI Matters

🧠 Private AI Advisor

Your financial questions stay on YOUR server, not sent to a third party.

🔓 No Lock-in

Export everything, switch anytime. Your data is always yours to take with you.

🇧🇪 Belgian Expertise

Knows YOUR tax code and specific regulations, not generic, useless advice.

For Bookkeepers: a shock absorber between client chaos and clean books.

Dokus sits upstream from your accounting software. It helps clients deliver the right documents and invoices — so you spend less time chasing and more time closing.

Fewer follow-ups for missing documents
Cleaner inputs before they hit your stack
Less manual sorting & back-and-forth
PEPPOL-ready invoices by default
One consistent workflow across clients

Not accounting software. Not another portal. A protective layer upstream.

Get invited + share your workflow.

"An AI that actually knows the difference between forfaitaire beroepskosten and werkelijke beroepskosten."

"Finally, software that speaks Belgian accounting."