About BillBook Business
Last updated: 11 June 2026
BillBook Business is a calm, private business book for small businesses — real invoices, a real cashbook, real credit ledgers and stock, in one place you fully own. It is built to be fast, to work even when the connection does not, and to keep your records yours: local-first by default, with optional cloud backup when you want it.
It is made by Shamil Niyas, an independent software developer trading as Shamrocks Games, based in Germany. BillBook Business is sold worldwide as software-as-a-service, with payments handled by our Merchant of Record, Paddle.
BillBook Business is business record-keeping software only. It is not a marketplace, an app or game store, or a platform for selling digital content; and it is not a bank, payment, lending, wallet, money-transfer, investment, insurance, gambling, legal-advice or tax-advice service. It does not move money or file anything with any authority on your behalf. See our Terms of Service, Privacy Policy and Pricing.
Legal Notice (Impressum)
Angaben gemäß § 5 DDG (Digitale-Dienste-Gesetz):
Shamil Niyas, trading as Shamrocks Games
Neue Heimat 16
65795 Hattersheim am Main
Germany
Contact
Email: support@billbookbusiness.com
Privacy: privacy@billbookbusiness.com
VAT
Umsatzsteuer-Identifikationsnummer gemäß § 27a Umsatzsteuergesetz: DE332447465
Responsible for content
Verantwortlich für den Inhalt nach § 18 Abs. 2 MStV: Shamil Niyas (address as above).
Consumer dispute resolution (Verbraucherstreitbeilegung)
We are neither willing nor obliged to take part in dispute-resolution proceedings before a consumer arbitration board (§ 36 Verbraucherstreitbeilegungsgesetz, VSBG).