SendOwl tax compliance automation for global sellers
Turn every SendOwl order into a tax-compliant invoice, and every refund into a credit note. Quaderno can email each one to your customer automatically.
Trusted by businesses selling across borders
SendOwl delivers the product. Tax compliance is still on you
Rebuilding invoices, tax reports, and threshold checks from order exports costs hours every month and leaves gaps an audit will find.
SendOwl on its own
- Invoices by hand Making every invoice and credit note compliant for each country yourself.
- Spreadsheet tax reports Exporting SendOwl data and rebuilding VAT, GST, and sales tax totals before every filing.
- Missed thresholds Finding out you crossed a nexus or VAT threshold after the back taxes have piled up.
SendOwl with Quaderno
- Automatic invoices An invoice for every payment and a credit note for every refund, which Quaderno can email to your customer.
- Tax you control Quaderno recalculates tax itself from the transaction data, using the tax rules you configure in Quaderno.
- Early alerts An email when you are approaching a threshold in a jurisdiction, and another when you reach it.
Everything you need to stay compliant after every SendOwl order
Invoices and credit notes for every order
Quaderno generates an invoice for every payment and a credit note for every refund, and can email it to your customer automatically.
VAT, GST, and sales tax handled
Every time you process an order, SendOwl sends the transaction data to Quaderno, which applies VAT, GST, and sales tax compliance.
Alerts before you cross a threshold
Quaderno emails you when you are approaching a threshold in a jurisdiction and when you reach it, so you can register on time.
SendOwl and every other channel in one place
Connect SendOwl alongside your other payment processors and sales channels, and Quaderno totals your sales by state and country across every connected channel.
From SendOwl connection to first invoice in three steps
Create a SendOwl API key
In SendOwl, add an API key with the Products, Orders, and Discounts options, and copy the key and secret.Connect and add the webhook
Paste the keys in Quaderno, then add the webhook URL Quaderno gives you in SendOwl for the New payment event.Let invoices run on their own
Quaderno generates an invoice for every payment and a credit note for every refund.
Built for SendOwl stores
Sales and refunds both arrive
The New payment webhook event lets Quaderno receive SendOwl's sales and refunds.
Reverse charge for B2B sales
Enable SendOwl's standard VAT number field, and Quaderno applies reverse charge automatically when the tax ID is verified.
Your tax rules, applied
SendOwl calculates taxes at checkout, but Quaderno ignores those figures and recalculates tax with the rules you set in Quaderno.
Tax insights through reports
Every sale also feeds your Quaderno reports, so your tax records are ready when you need them.
I've been using Quaderno for 8 years, and its integration with payment platforms like Stripe and PayPal automatically generates my invoices with the necessary taxes. It simplifies collaboration with my tax advisor, as he can easily access all the information in my account without any hassle.
Ángel AlegreFounder, Vivir al Máximo
- $14B+in global transactions monitored
- 150+countries covered for nexus, VAT, and GST rules
- 15+ Hourssaved every month on manual sales mapping
One platform. Complete global tax compliance
SendOwl is where sales start. Quaderno covers every tax step that follows, from threshold monitoring to filing.
- 01
Monitor
Anticipate global tax thresholds
Track sales volume, US economic nexus, and international VAT and GST thresholds in real time, so you never miss a registration deadline.
- 02
Tax Engine
Calculate exact taxes instantly
Calculate sales tax, VAT, and GST in milliseconds, without adding friction to your checkout.
- 03
E-Invoicing
Clear e-invoicing mandates
Issue structured digital invoices and send real-time transaction data to tax authorities across Europe.
- 04
Filing
Submit audit-ready tax returns
Turn thousands of transactions into clean, location-specific reports, or let Quaderno file directly with tax authorities.
Explore more integrations
Stripe
Quaderno expands on Stripe’s capabilities, adding global tax calculations, automatic invoices, instant tax reports, and more.
Shopify
Quaderno provides automatic invoices, tax registration alerts, and instant tax reports for your Shopify sales.
PayPal
Get automatic tax calculations, invoices, tax registration alerts, and instant tax reports for payments through PayPal.
WooCommerce
Quaderno is the only all-in-one WooCommerce tax plugin for sales tax, VAT and GST, covering your sales worldwide.
Square
Quaderno sends automatic invoices for Square payments, plus provides you with tax registration alerts & instant tax reports.
Amazon FBA
Quaderno provides automatic invoices, tax registration alerts, and instant tax reports for your Amazon sales.
Frequently Asked Questions
Does Quaderno integrate with SendOwl?
Yes. Quaderno supports automated billing and VAT, GST, and sales tax compliance for SendOwl stores. Every time you process an order, SendOwl sends the transaction data to Quaderno, which generates an invoice and can automatically email it to your customer.
Does Quaderno use the tax SendOwl calculates at checkout?
No. Although SendOwl calculates taxes at checkout, Quaderno ignores those figures and recalculates tax itself using the transaction data it receives. Configure your tax rules in Quaderno to ensure accurate invoices.
Does Quaderno support B2B sales on SendOwl?
Yes. Enable SendOwl's standard VAT number field. Quaderno then receives the customer's tax ID, displays it on the invoice, and automatically applies reverse charge when the tax ID is verified.
Does Quaderno support SendOwl upsells?
Upsells are not fully supported. They appear on your invoice as a single line item with the total amount.
Is there a free trial?
Yes. Quaderno offers a 7-day free trial with full access to all features, including the SendOwl integration. No credit card is required to start. See all plans and prices.
Stop rebuilding tax records from SendOwl exports
Connect SendOwl once and every SendOwl order will turn into a compliant invoice, ready for filing.