Netherlands — Exact Online / Twinfield

Exact Online — market leader, 500,000+ users. Comprehensive REST API. Bi-directional sync for contacts and invoices.

Twinfield (Wolters Kluwer) — popular with tax advisors. Moneybird nowlancers. Snelstart for traditional bookkeeping. Yuki — scan-based accounting.

Dutch BTW: 21% standard, 9% reduced, 0% for certain exports.

Belgium

Complex tax system across language regions. Yuki strong in Flanders, Exact in Wallonia. Octopus for SMEs. WinBooks for Walloon tax advisors.

Belgian BTW/TVA: 21% standard, 12% reduced, 6% strongly reduced.

Luxembourg

Small market dominated by international solutions. Exact Online for SMEs, SAP Business One for mid-market.

Luxembourg TVA: 17% standard (lowest EU rate), 14% reduced, 8% reduced, 3% strongly reduced.