Eenmanszaak and V.O.F.
You keep your own books, or you want your bookkeeper to be able to check them without a fuss. Owner's drawings and contributions are already there.
OB returns, art. 44 invoices, your bank and your compliance calendar in one system. For business owners, and for the bookkeeping practices that help them.
Works in XCG · knows the Curaçao public holidays · your data in Amsterdam
Bon Buku knows the difference between an eenmanszaak and a B.V., and adjusts the accounts, the calendar and the deadlines accordingly. You do not have to build the law yourself.
You keep your own books, or you want your bookkeeper to be able to check them without a fuss. Owner's drawings and contributions are already there.
Invoices, OB, bank, and the figures your accountant needs for the jaarrekening under BW art. 2:15.
Several clients, each in their own walled-off set of books, and one overview of what has to happen for whom.
In developmentEvery part posts to the same general ledger. That is why your OB return always ties back to your bookkeeping.
Every required field, a number with no gaps, FACTUUR and KOPIE FACTUUR, and the OB in XCG — even on an invoice in dollars.
Out of your entries, per rate, with nil returns, and every figure traceable to the posting that made it.
The 15th of the month, moved to the next working day, taking every Curaçao public holiday into account.
Import your MCB statement. Bon Buku proposes the entry; you approve it. Exchange differences are posted automatically.
Photograph a receipt with your phone. OB on purchases is posted as a cost, because on Curaçao you cannot deduct it.
Your Shopify POS turnover lands in your books day by day, per rate and per cost centre.
Balance sheet, profit and loss account, trial balance and general ledger, at any date, exportable for your accountant.
You do not quietly change a posted entry. You correct it with a reversal or a credit note, so everything stays traceable.
Wage tax and premiums for 2026, including the youth exemption of Lei di Bion. The verzamelloonstaat is still to come.
In development| VR session, 2 people | US$ 50.00 |
| Lounge, drinks | US$ 12.00 |
| OB 9% | US$ 5.58 |
| Amount due | US$ 67.58 |
OB in XCG: Cg 9.99 (rate 1 USD = 1.79 XCG, a fixed peg). That is how it appears on every invoice in a foreign currency, as art. 44 lid 7 requires.
A clean start at the beginning of the financial year. You keep your old years as an export: the ten-year retention is about being readable, not about staying in the same package.
Legal form, CRIB, KvK and SVB. Bon Buku explains why it asks each question and where to find the answer.
Download the chart of accounts as a template, fill it in from your old package and import it. A balance that does not balance is refused, not written off.
Import your bank, write your invoices, and watch your OB return build itself. Your bookkeeper looks on with a login of their own.
Every plan has all the statutory features. You pay for the size of your business, not for the compliance.
An eenmanszaak or V.O.F. with no staff
A business with staff, a till or more than one currency
includes 5 employees, then XCG 9 per employee
Bookkeeping practices with several clients
volume discount from 20 clients
Indicative rates, subject to change. Pay yearly and you get two months free. No set-up fee, cancel monthly. Amounts exclude 6% OB.
An international package is built for VAT or sales tax. Excel knows no rules. Bon Buku starts from the law of Curaçao.
| Feature | Bon Buku | International package | Excel |
|---|---|---|---|
| OB on purchases as a cost | By default | Configure it yourself | By hand |
| Art. 44 fields, OB in XCG | Enforced | Partly, with your own template | By hand |
| Deadlines with Curaçao holidays | Built in | Not there | Not there |
| Invoice numbers with no gaps | Guaranteed | Usually | Keep track yourself |
| Posted is posted | Yes, with an audit trail | Depends on the settings | No |
| Price | from XCG 59 | from about XCG 68 (US$ 38), in dollars | free, plus your time |
No. On Curaçao the omzetbelasting is a turnover tax with no deduction of input tax. The OB you pay on purchases is a cost. Bon Buku therefore posts it to an expense account and never as a receivable.
Yes. You bring your opening balance across as at 1 January using a template. You export your old years from QuickBooks and keep them for ten years, as ALL art. 43 requires.
No. The tax authority's portal has no integration. Bon Buku prepares your return, with every figure traceable to your entries, so you can copy it across in a few minutes. You then mark it as filed.
Bon Buku reads the daily takings from Shopify POS. It does not issue kassabonnen itself. Whether your business needs an approved fiscal register depends on what you do; for hospitality it is the rule. Ask your accountant.
A scan may replace the paper under conditions (BW art. 2:15 lid 4 and art. 3:15i): scanned completely and legibly, and accessible for ten years. The balance sheet signed on paper and original deeds you do keep.
On a server in Amsterdam, inside the EU. CRIB and bank account numbers are stored encrypted. Every set of books is walled off from every other one in the database itself.
Yes, with a login of their own on your books. You decide which role they get.
That is in development. The calculation of wage tax and premiums for 2026 is there, including the youth exemption of Lei di Bion. The verzamelloonstaat is still to come.
That is not in the calendar yet. For now, put that deadline in your own diary. We would rather say so than let an empty space look like completeness.
We are opening Bon Buku in stages. Request a demo or join the waiting list, and we will get in touch.
In half an hour we go through your own situation together: your legal form, your till, your bank and your OB. You get a quote afterwards.
Would you rather join the waiting list first?