Meet Your Accountant

The Founder

Chartered Certified Accountant (ACCA), founder of Lean Ledger, and builder of practical finance systems.

Luke, the founder in Belgravia, London

Finance, systems and useful advice belong together.

I'm a Chartered Certified Accountant (ACCA) with senior practice experience, and I code. That combination is rarer than it should be, and it's the foundation of how Lean Ledger works.

My career has been shaped by a simple observation: most accountancy firms treat technology as something bolted on at the end, a cost to minimise rather than a capability to build around. I've watched talented accountants spend their days on work that software could do faster, more accurately, and without the 11pm rekeying sessions. So I learned to write the software myself.

I started with Python in 2018 and kept going. Today, I build integrations, reporting tools, and internal systems alongside accounting work, because the two aren't separate skills anymore. They're the same job done properly.

Luke Raczynski at the desk, working, writing in his notebook by hand.
One of the desks in the office
Luke sipping a coffee at the coffee shop in London
The founder Luke Raczynski is reading a book in the library.

When I am not building systems or balancing books.

Away from the desk, I read widely, mainly on topics like the economy, systems thinking, AI, and anything that helps me understand how the world works. On weekends, I enjoy long walks and rucks around London or further afield, usually with a planned route and a flask of coffee. Motorcycles have always been a passion for me; the focus they require helps clear my mind. Recently, I started woodworking, which is similar to writing software: measure carefully, understand the material, respect the limits, and see if the result fits.

Luke in the woodworking workshop working on a piece of wood
Luke hiking in Switzerland in the late Summer
Luke on the motorcycle

Let us see if we are a good fit.

No hard sell, no obligation. Just an honest conversation about your business and whether Lean Ledger is the right partner for you.