In late 2025, Philip Vasilevski packed up his life in Los Angeles and moved to Amsterdam. Within weeks he was drowning in Dutch bureaucracy, getting quoted €200 an hour by local accountants, and wondering if there was a better way. There was. He built Mr. Bookkeeper on KiloClaw, and what happened is a pretty good illustration of what this platform can do when you point it at any system you don't fully understand yet. This is a summarized story, read Philip's original post here.
Lost in Translation (and Acronyms)
Nobody warns you about this when you move to the Netherlands to start a business: Dutch bureaucracy speaks exclusively in acronyms, and every single one sounds like furniture from a catalog you can't read.
Take loonheffingennummer — "lone-heff-ing-en-noo-mer" — that's 20 letters for what is simply a payroll tax number. Or Belastingdienst, the Dutch IRS. Say it out loud: Beh-LAS-ting-deenst. Sounds like a spell from Harry Potter, but it strikes genuine fear into the hearts of many Netherlanders. When your entire tax system sounds like someone fell asleep on a keyboard, the learning curve is a bit steeper.
The €200/Hour Problem KiloClaw Solved
Before I found my current setup, I did what any responsible business owner would do: I called accountants.
A lot of accountants.
I called firms in Amsterdam, obviously. Expensive, but expected. Then I thought: maybe I'll find better rates outside the big city. So I called firms in smaller towns. Firms in places I couldn't pronounce. Firms in what I can only describe as remote parts of the Netherlands which, in a country you can drive across in three hours, is a relative term.
Two hundred euros an hour. To categorize expenses. To look at an invoice and decide if it's 21% BTW or 9%. I get it. They have expertise, they carry liability, they went to school for this. I respect the profession.
But here's the thing: I was already paying about $1,250 a year for QuickBooks Online to handle the American side of the business. On top of that, an American accountant for roughly the same amount. That's $5K a year just to keep the US books in order, in a system I already understand, in a language I already speak. Now do it all over again. In Dutch. With a completely different tax system. Different VAT rules. Different payroll obligations. Different filing deadlines. At €200 an hour.
I wasn't thinking "I can't afford this." I was thinking there has to be a better way. The actual work — entering invoices, assigning categories, checking tax rates — isn't rocket science. It's important, it needs to be right, but it's fundamentally pattern matching and data entry. Paying premium rates for that, twice, in two countries, felt like a problem that shouldn't exist in 2026.
And the kicker: the firms my immigration lawyer recommended didn't just charge high rates. They required us to use their proprietary accounting platform. No API, no export path, no way to connect it with other tools. I said no, without quite knowing what I'd do instead.
The Hacker Building Way
I work out of The Hacker Building on the Herengracht in Amsterdam, a coworking space full of founders, developers, and people who believe software should be open, interoperable, and under your control. When I asked around about accounting, the answer was unanimous: Moneybird — a Dutch accounting platform with a clean UI, solid API, and a philosophy aligned with how modern businesses should work. Your data is yours. You can export it, query it, build on top of it, connect it to your bank, your payroll, your everything.
So Moneybird became the foundation. But I still needed help navigating the actual bookkeeping — entering purchase invoices, figuring out which tax rate applies to a Belgian stylist versus an American photographer, reconciling bank statements, understanding what the Dutch tax authority expects and when. I needed a bookkeeper. I just didn't expect mine to be an AI.
Meet Mr. Bookkeeper 📒
Mr. Bookkeeper is my always-on digital bookkeeping assistant. He lives on KiloClaw, Kilo's hosted version of OpenClaw, an open-source personal AI agent platform. Here's what makes him different from asking ChatGPT a question.
He has context. He knows my company, our registration number, our accounting administration, our contacts, our tax rates. He remembers yesterday's conversation and knows what deadlines are coming up.
He has tools. He doesn't just tell me what to do, he does it. He calls the accounting API to create contacts, enter purchase invoices, look up ledger accounts, and check tax rates. He reads PDFs, extracts invoice data, and catches errors automatically.
He speaks both languages. When I need to email our payroll provider, I don't open Google Translate and pray:
💬 Philip: what dutch should i use to update customer service on the current situation, basically that january needs to be reset and then we are good
📒 Mr. Bookkeeper: Hoi Roel, het is gelukt om de 30%-regeling goed in te stellen — ik heb de vergoeding op "excl." gezet en februari ziet er nu correct uit. Alleen staat januari nog op het oude tarief (zonder 30%-regeling). Kun je januari resetten zodat ik die opnieuw kan doorrekenen met de 30%-regeling? Dan zijn we helemaal bij. Alvast bedankt!
He translates the concept, not just the words. He knows the right register — casual for a chat message, formal for official correspondence. He explains Dutch terms in English so they actually land. It's like having a bilingual colleague sitting next to you who never gets tired of explaining things for the fifth time.
He writes things down. Every session, he updates his memory file. When he wakes up tomorrow, he'll read today's notes and pick up where we left off. Not perfect memory — more like a diligent colleague who keeps a good notebook.
When I asked him to recalculate our payroll after fixing a misconfiguration in our tax setup, the numbers finally made sense. The 30% ruling deduction came through at -€832,25, bringing the monthly payroll tax down from €4.833,33 to €4.001,08 — a saving of around €420 a month. Not bad for catching a configuration error.
Could I have found that myself? Honestly, no. Not in any reasonable timeframe. Not while also trying to run the business itself.
"I Cannot Handle This Alone"
Here's something I appreciated about Mr. Bookkeeper from the start: he was upfront about what he couldn't do. On day one he laid out the boundaries clearly:
📒 Mr. Bookkeeper: Things I'll flag but you'll need a human for: filing VAT returns, the annual accounts, the corporate tax return, and complex tax questions where a professional advisor should sign off.
Reasonable. Responsible, even. An AI that knows its limits.
Except here's what ended up happening: we just kept going. And the line between "things I can do" and "things you'll need a human for" kept moving. We started with the simple stuff — invoices, categories, tax rates. But then we hit the payroll question and instead of stopping, he researched it. He found the right payroll platform. He helped set it up. He caught the tax ruling misconfiguration that was costing us money every month.
Then came the quarterly VAT return — the thing he explicitly said I'd need a human for. We opened it up together. He pulled the numbers via the API, cross-referenced every invoice, checked which boxes needed what amounts, and walked me through the submission. It just worked.
He didn't just process the numbers. He understood the logic. An American photographer in Brooklyn gets one tax treatment. A Belgian stylist gets another. A Dutch equipment rental company gets a third. He got it right every time, and when he wasn't sure, he said so.
We didn't set out to replace an accountant. We just kept solving the next problem, and eventually looked back and realized we'd done most of it. All of it? I'm no longer sure where the line is. Maybe there's a ceiling. But I'm starting to wonder if it's a lot higher than anyone — including Mr. Bookkeeper — assumed.
What Would You Build?
Philip's problem was Dutch accounting. But the pattern is the same everywhere: a domain just outside your expertise, a system you haven't learned yet, a recurring task that's too important to ignore and too tedious to enjoy. It could be payroll in a country you just moved to, compliance in an industry you're new to, or any administrative layer that sits between you and actually running your business.
Mr. Bookkeeper wasn't a product Philip downloaded. He built it on KiloClaw because he needed it, and kept going because it kept working. That's the point. Not a fixed tool for a fixed problem, but a platform that lets you build the assistant your specific situation requires, whatever that situation happens to be.
What's the system you've been meaning to get on top of?
Mr. Bookkeeper runs on KiloClaw by Kilo, powered by OpenClaw. All opinions are Philip's — and occasionally Mr. Bookkeeper's, because he has those now.
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