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I am moving from sole proprietorship (eenmanszaak) to BV, what do I sort in my IT?

Legally, the BV is a new entity with its own KVK number and VAT ID. That hits accounting, invoicing, contracts, and domain registration. Do not rebuild the stack; adapt administratively.

Try this first

  1. 1Open a new administration in the accounting tool under the BV name. Keep the sole-prop administration separate and retain 7 years for fiscal purposes.
  2. 2Update invoice templates with new KVK number, VAT ID, and bank account. Check e-invoicing settings (Peppol, UBL) and the payment provider (Stripe, Mollie) for the new entity.
  3. 3Migrate active contracts to the BV where possible. Some vendors require a new agreement; some allow assignment without fuss. Plan this before the cut-over date, not after.
  4. 4Domains, hosting, and SaaS accounts: switch owner / billing address to the BV. M365 and Google Workspace tenants can usually stay; license billing is tied to the tenant setting.

When to bring us in

The fiscal and legal conversion (silent or noisy contribution) is not DIY work. Bring in your accountant and possibly a notary early, even if IT looks simple.

See also

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