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TwinnTax

“Can a Belgium-only accounting-automation SaaS become the default compliance OS inside every fiduciaire's browser tab?”

Founded2019
HQBrussels, Belgium
FoundersOlivier Daxhelet
IndustryVertical SaaS / Accounting

The story

TwinnTax is a Belgian accounting-tech SaaS founded in 2019 by Olivier Daxhelet to automate the recurring, high-volume compliance tasks of Belgian fiduciaires — tax-document collection from government portals, director salary calculations, fiches 281, declarations 273, UBO registries, AGM paperwork and PEPPOL e-invoicing. It has grown to serve 1,800+ accounting firms with a small team (~6 employees in 2024) and remains focused narrowly on the Belgian accounting-vertical compliance stack rather than embedded finance per se.

Last 12 months

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Product timeline

2019

TwinnTax founded in Brussels to automate recurring tasks for Belgian accounting firms (fiduciaires).· pivot

2020

Launch of Tax Bot module automating document retrieval from MyMinFin, Tax-on-Web and FinProf.· pivot

2023

Expansion into director salary processing, 281.xx fiches, 273 declarations, UBO registry, and PEPPOL invoicing portal.· pivot

The stack

0 layers disclosed in TwinnTax’s embedded-finance stack

Accounting gap: minor

TwinnTax — frequently asked

Who founded TwinnTax?

TwinnTax was founded by Olivier Daxhelet and is founded in 2019, headquartered in Brussels, Belgium.

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