Tailoring your accounting system stopped being a luxury.
Accounting.dev is built by the team behind Kirjuri, the accounting knowledge service Finnish accountants have used since 1999. We know this work from the inside, and building software is what we do.
The arithmetic changed, not the wishful thinking.
Building software got radically cheaper
AI-assisted development changed the arithmetic. What used to take a platform team a year now takes a small team weeks, and the cost of every change fell with it. That is why a whole platform can be licensed for one flat monthly price at all.
So tailoring is worth it again
When building was expensive, buying the same off-the-shelf system as everyone else was the rational choice, and you shaped your process around the software. Now an app that fits how you actually work costs less than living with the compromise.
And the bookkeeping itself is automatable
The same models that write the software also read documents, propose postings, reconcile accounts and explain what they did. The line-by-line work is no longer a headcount question, so a fixed price can replace a bill that grew with every transaction.
The founders behind the engine.
The people who started accounting.dev, and the ones you will be talking to.
Harri Puolitaival
Partner, CEORuns strategy and administration. An entrepreneur across several industries, an AI consultant, and semiconductors before that. M.Sc. (Eng.), lives near Oulu, Finland.
[email protected]
Tuomas Iivanainen
Partner, partnerships and marketOver 20 years in fintech and accounting across several countries, in leadership roles at Talenom and Accountor. Works on strategy, partnerships and market insight. M.Sc. (Eng.), lives in Helsinki, Finland.
[email protected]
Matti Saarinen
Partner, product developmentSoftware development and AI, previously at Nokia, Apple and Talenom. Third company as a founder. M.Sc. (Eng.), lives in Hämeenlinna, Finland.
[email protected]Since 1999, with a new engine.
Kirjurituote Oy was founded in 1999 to publish accounting knowledge in digital form, and its Liikekirjuri and Kiinteistökirjuri charts of accounts became basic tools of the trade. We took the company over at the beginning of September 2025 and have been building the next generation of it since: Kirjuri for the knowledge, Accounting.dev for the engine that does the work. The same team behind both, and the same knowledge keeping both current.
Work out what your current system will cost you five years from now.
Tell us what you're running today, and we'll show you what the same work looks like on Accounting.dev, and what it costs. Fixed.