About Tiny Books

Tiny Books is a small bookkeeping tool for Finnish sole proprietors — built around producing a correct Form 5 each spring without the overhead of a full accounting suite.

Why it exists

Sole proprietors with revenue under 20 000 € have one real tax obligation: an annual Form 5. Today's tools treat them like miniature limited companies — monthly close cycles, double-entry, accountant portals. That's overkill.

Tiny Books does one thing: turn your receipts into a Form 5 you can file yourself, and an archive you can keep forever. No invoicing. No bank. No accountant required.

Who's behind it

Tiny Books is built by Slantedt Tmi, a Finnish toiminimi (sole proprietorship). We're a small operation that builds focused tools for people whose work doesn't fit the SaaS-for-companies template.

Slantedt Tmi is the data controller for everything you put into Tiny Books. Your data lives in EU Cloudflare data centers. We don't sell, share, or train models on it.

Contact

Questions, feedback, support: hello@tinybooks.fi.