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Shillinq

Complete open-source business administration suite for freelancers, sole proprietors, SMBs, and corporations — bookkeeping, invoicing, procurement, and contract management in one self-hosted solution on Nextcloud.

Named after the shilling — one of the oldest and most widely used coins in European history, from the Roman solidus to the British shilling to the East African shilling still in use today.

What you get​

  • Double-entry bookkeeping and a general ledger on a configurable chart of accounts.
  • Accounts payable and receivable, sales invoicing, and e-invoicing (UBL / Peppol / NLCIUS).
  • Purchase orders and procurement workflows with supplier management and approval chains.
  • Contract lifecycle management — creation, renewal, obligations — with a full-text searchable repository.
  • Bank reconciliation and payment matching (SEPA / ISO 20022).
  • VAT and tax reporting, financial statements (P&L, balance sheet, cash flow), and budget planning.
  • Dutch government compliance: BBV, IV3, SiSa, DigiInkoop.

Getting started​

Install Shillinq from your Nextcloud admin settings (it requires the OpenRegister app), then point it at an OpenRegister register on the settings page.

For step-by-step walkthroughs see the Tutorials section in the sidebar: the user track covers everyday tasks like sending an invoice or recording a bill; the admin track covers org-wide configuration like the chart of accounts and supplier approval chains.

For architecture and the feature analysis, see Architecture and Features in the sidebar.