from first prompt to tax return

After the prompt, the real work begins.

From AI prototype to real business: live, professional, and with your tax matters explained down to the cent.

The platform opens later. Questions or comments can be sent to info@basestep.io.

  • Dutch bookkeeping
  • XAF audit file export
  • No bank link needed
  • You file yourself
the business layer

Bookkeeping that is ready the moment you start earning.

basestep is a Dutch platform that helps makers of an AI prototype turn it into a real business, with the bookkeeping of a sole proprietorship (eenmanszaak) included. Six parts of complete Dutch bookkeeping for a sole proprietorship, from quote to ledger.

How much of it you see depends on your work profile: hobby, side hustle, part-time or full-time. If you build for fun, the business side stays closed. As soon as you start earning, you flip the switch: what opens up then.

Quotes with click-to-accept

A precise record of who accepted when, with logging.

Invoices that are legally correct

Gap-free numbering once final, PDF and e-invoice, a payment QR code, and a legally complete reminder procedure.

Import bank statements, without a link

CAMT.053, MT940 or CSV: you import the statements yourself and the platform matches them.

A real ledger under the hood

Automatic journal entries, periods that lock once you have filed, a verifiable audit log with a hash chain, and XAF export.

Expenses, hours and business assets

Quick manual entry, mileage, and depreciation where it applies.

Honest about the limits

basestep calculates and explains; you file yourself through Mijn Belastingdienst Zakelijk (the Dutch tax authority portal).

The screens above show sample data.

This is general information, not tax or legal advice. basestep calculates and explains; you file yourself. If you are unsure about your situation, consult an adviser.All calculations, explanations and signals are calculation support and instruction, not tax or legal advice. Every calculation shows the rates it used and how it was derived. All amounts are estimates based on your own input; the Dutch tax authority (Belastingdienst) sets the assessment.You remain responsible for your own bookkeeping and your tax returns.

how it works

Four phases, one path.

Choose your project type, get your plan.

Website, web shop, web app or the compass first: every type opens with a board already filled with the steps that belong to it.

Building blocks and AI prompts at the right moment.

The library gives you the building block and the prompt for each step, so you do not have to search for what you do not know.

Go live by the recipe.

A checklist of eighteen points that you work through yourself: domain, deploy, privacy statement, and the check afterwards.

Get found, maintain, earn.

And as soon as money comes in, the bookkeeping is already set up, in the same platform.

the health check

Eighteen points before you go live.

You work through the health check yourself: secure, findable, the legal minimum.

The steps behind it are in the guide from prototype to live. If you build with Lovable, Bolt, v0 or Replit, there is a guide per tool.

learn and keep up

Get better at it yourself.

Twenty articles with sources and dates are in the knowledge base: from going live to your first VAT return.

Learning paths

Skills in the right order, with the AI prompt included.

The knowledge base

Building blocks for design, development and security.

Signal

The AI news that matters to you, reduced to one question: does this concern you?

every week

The AI news that matters to you, in your inbox.

An edited edition as long as there is news, with a verdict per work profile on each item: does this concern you, yes or no. A language model writes the first draft, a person edits and publishes. The archive is free and readable by everyone, also without an account; this is how the editing works. The digest is written in Dutch.

pricing

Soon you start for free. Grow when you grow.

Free

Your first project live.

€0
per month
Premium

You build seriously: the whole library open.

€9.95
per month, including VAT
Pro

You earn money: administration and engine included.

€24.50
per month, including VAT

Lifetime: €750 one-off, Pro level for life. Available to order soon. What founding is, and what you do not get

A demo is not a business.

Make it real.