Why connect your accounting software
Every paid order in bookto checkout contains everything your accounting tool needs to create an invoice: buyer name, company, VAT number, address, amount, VAT rate, and product description. Connecting your software means that data flows automatically — no copy-pasting, no missed invoices.
How it works
bookto checkout does not create invoices itself. Instead, it sends order data via an integration to your invoicing or accountancy software the moment a payment comes in. That integration creates a draft invoice in your accounting tool.
The flow looks like this:
- Buyer pays → bookto checkout receives the payment
- bookto checkout sends the order data to your integration
- Your integration creates a draft invoice in your accounting tool
Available fields
Every paid order sends the following data to your integration. When you set up your invoice, map these fields to the matching fields in your accounting tool:
- Order — order number, order ID, status, created at, paid at
- Amount — total incl. VAT, excl. VAT, VAT amount, VAT rate, currency
- Product — product name, product description
- Buyer — first name, last name, email, company, VAT number, address, city, postal code, country
- Custom fields — up to 3 custom field labels and values (if configured on the product)
- Seller — seller ID, seller entity name
The buyer and amount fields are the ones you need most: name, company, VAT number, and address identify the customer on the invoice, while the amount excl. VAT, VAT rate, and VAT amount fill in the invoice lines correctly. All values come directly from what the buyer entered at checkout, so check them before you send (see the tips below).
What you need
- A bookto checkout account on the Flow plan
- A Zapier account (free or paid)
- An accounting or invoicing tool that has a Zapier integration
Does your tool support Zapier? Go to zapier.com/apps and search for your tool. If it appears, you can connect it. If not, check whether your tool offers a webhook URL — you can use that directly via the API key & webhooks card in bookto checkout.
Supported tools (examples)
Any tool with a Zapier integration works. Well-known options used by European solopreneurs:
- Moneybird — popular in the Netherlands, full Zapier support
- Exact Online — widely used in Belgium and the Netherlands
- Billit — Belgian invoicing tool (check zapier.com/apps for current availability)
- QuickBooks — international option with strong Zapier support
- Xero — international option with strong Zapier support
Tips for a smooth setup
Create drafts, not final invoices. Set your Zap to create a draft invoice, not a final or sent one. That way you review each invoice before it goes to your client. One wrong field in a sent invoice is harder to fix than in a draft.
Always send manually. bookto checkout never sends invoices on your behalf. Even if your Zap creates an invoice automatically, you decide when and whether to send it. Keep that step manual — it takes seconds and keeps you in control.
Check before you send. Glance at the invoice before sending: buyer name, VAT number, amount, and VAT rate. These come directly from what the buyer entered at checkout. If a buyer made a mistake, you catch it here.
Test with a real order. After setting up your Zap, place a test order on your own checkout page and check whether the invoice appears correctly in your accounting tool. Fix any field mapping issues before real buyers come in.
How to set it up
Follow the step-by-step guide to connect Zapier first:
Connect Zapier to bookto checkout →
Once Zapier is connected, create a new Zap with New Paid Order as the trigger and your accounting tool as the action.
Flow plan required. This integration requires the Flow plan. View plans →