Custom development · Belgian accounting specialists

Accounting software built around your firm, not the other way around.

Every accounting firm has unique processes, clients, and requirements. When off-the-shelf software does not fit, we build what does. Custom development, integrations, data migration, and ongoing support — all from a team that understands Belgian accounting.

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What We Build

What we build.

Bespoke Accounting Platforms

If your firm has outgrown generic software and needs a platform tailored to your specific workflows, we build it. From document intake and automated bookkeeping to custom reporting dashboards and client portals — we develop end-to-end accounting platforms using the same proven technology stack that powers Acurion Standard.

  • Custom document processing pipelines
  • Firm-specific workflow automation
  • Client-facing portals and dashboards
  • Custom reporting and analytics
  • Built on FastAPI, PostgreSQL, and plain HTML/CSS/JS — no framework lock-in

Integrations & API Development

Your firm likely uses multiple tools: banking portals, government filing systems, CRM, document management, and more. We build integrations that connect these tools to your accounting workflow, eliminating manual data transfer and reducing errors.

  • CODA/CAMT bank file processing
  • PEPPOL network integration
  • Government filing system connections (Intervat, Biztax)
  • Third-party API integrations (CRM, payroll, ERP)
  • Automated data synchronisation between systems

Data Migration

Moving from another accounting platform is one of the biggest barriers to switching software. We handle the entire migration: extracting your data from your current system, transforming it to fit the new structure, and validating that nothing is lost. We have experience migrating from Silverfin, Adsolut, Exact, BOB50, Octopus, and others.

  • Full data extraction from your current platform
  • Data cleaning, deduplication, and validation
  • Chart of accounts mapping (MAR alignment)
  • Historical document and transaction migration
  • Parallel running period to verify accuracy

Consulting & Training

Our team includes developers who specialise in Belgian accounting software. We can advise on process optimisation, software selection, compliance requirements, and technology strategy. We also provide training for your team on Acurion Standard or custom-built solutions.

  • Process audit and optimisation recommendations
  • Belgian compliance and regulatory advisory
  • Team training and onboarding support
  • Ongoing technical support and maintenance

Our Approach

How we work.

Discovery

We start with a thorough understanding of your firm's processes, pain points, and goals. No solution is proposed until we understand the problem.

Proposal & Planning

We provide a clear, fixed-scope proposal with deliverables, timeline, and pricing. No open-ended timesheets or surprise invoices.

Development

We build iteratively, delivering working software at regular intervals. You see progress, provide feedback, and course-correct early.

Delivery & Support

We deploy, train your team, and provide ongoing support. Our code is yours — no vendor lock-in, no proprietary frameworks.

Technology

Built to last.

We use a technology stack chosen for longevity and maintainability — not hype. Every component has a track record of 5–15 years of stability. This means your custom software will not need a rewrite when a JavaScript framework releases a breaking update.

Backend
Python (FastAPI, SQLAlchemy, PostgreSQL)
Frontend
Plain HTML, CSS, JavaScript — no framework dependencies
Database
PostgreSQL with schema-based multi-tenancy and row-level security
AI / ML
Direct API integration (OpenAI Vision for document processing)
Infrastructure
European hosting (Hetzner), Cloudflare for CDN and security
E-Invoicing
OpenPeppol-compliant AS4 access point, UBL 2.1

Get in Touch

Let's talk about what you need.

Whether you have a clear specification or just a pain point you need solved, we are happy to discuss it. No obligation, no sales pitch.

[email protected]

Or use the contact form. We aim to respond within one business day.