De Zingende Boekhouder

Getting your numbers back in tune

Is your bookkeeping sounding a bit off-key? Not anymore, thanks to de Zingende Boekhouder (the Singing Bookkeeper.)

Are you a freelancer who does it’s own administration, but wants the reassurance that everything is correct?
The Singing Bookkeeper helps you with your annual accounts and income tax return—without you having to outsource your entire administration.

You stay in control.
I will make sure your numbers add up.

Who, What & Why

This service is specially designed for:

Freelancers who manage their own bookkeeping but would like a professional check—and prefer to have their annual accounts and income tax return taken care of.

And for individuals who would rather outsource their income tax return.

No complicated structures, no endless advisory trajectories—just clear support to make sure your numbers line up neatly again.

Who it’s for

For entrepreneurs, I help with:

  • checking your bookkeeping

  • preparing your annual accounts

  • filing your income tax return

  • answering short, practical questions

  • reminders for VAT returns

For individuals, I take care of your income tax return.

That way, you know everything is filed correctly
without having to outsource your entire administration.

What I do for you

Because numbers—just like music—sound best when everything is in harmony.

With a background in business economics and a passion for music, I bring a fresh perspective to your bookkeeping. No dry accounting jargon, but clear explanations and a personal approach.

The goal:
to help you keep a clear overview, so you can focus on what you do best.

Why the Singing Bookkeeper

How it works

Step 1 – Introduction

Before we start working together, we schedule a short intake of about 10–15 minutes.

We’ll discuss:

  • your type of business

  • how you manage your bookkeeping

  • whether my services fit your situation

That way, we both know exactly where we stand.

Step 2 – You stay in control

Throughout the year, you manage your own bookkeeping in a system of your choice.

You remain responsible for:

  • your administration

  • your VAT returns

Giving you full control over your numbers.

Step 3 – Year-end closing

At the end of the year, you send me your bookkeeping and required documents.

I will then:

  • review your administration

  • correct any inaccuracies

  • prepare your annual accounts

  • file your income tax return

Questions along the way

Got a quick question about how to process something or how something works?
You can always reach out.

Who is the Singing Bookkeeper

Cathelijne ten Houte de Lange has two great passions: music and numbers. An unusual combination for many—but that’s exactly where her strength lies.

With a grandmother who was a singer and a grandfather who worked as an accountant, her love for both music and numbers runs in her blood. Combining the two worlds simply made sense.

In 2017, Cathelijne graduated in Business Economics. During and after her studies, she worked in various financial roles—from bookkeeping to handling royalty contracts at a record label. In recent years, she worked as an in-house bookkeeper.

In July 2025, she decided to take a new direction and start her own business—allowing her to combine her financial expertise with her work as a singer, musician, and voice-over artist.

What does that mean for you?

Cathelijne understands you’d rather focus on what you do best. Bookkeeping can sometimes feel complex or overwhelming. With her precision, experience, and fresh perspective, she helps you regain clarity and control over your numbers.

Not in a dusty way—but with a light and playful note.

You keep your books—she makes sure everything adds up and your tax return is filed correctly and on time.

Compose your finances,
orchestrate your success