Introduction
Quaderno helps you scale your business without stressing about taxes.
We provide the tools you need to automate tax compliance and sell anywhere online, including e-invoicing with one single API.
Tracking local tax registration thresholds and tax rates is tedious and time-consuming. Instead, focus on making sales while Quaderno ensures compliance with VAT, GST and other sales tax rules.
Fast track
Understand Quaderno in 5 minutes!
-
Register for a Sandbox account, and go to your profile to get your API Keys.
-
Use our Tax API to calculate tax on your checkout form:
curl https://sandbox-quadernoapp.com/api/tax_rates/calculate?to_country=US&to_postal_code=10128 \
-u YOUR_API_KEY:x
- Once you get paid via your favorite payment processor, record your sale with our Transactions API.
curl --request POST \
--url https://ACCOUNT_NAME.sandbox-quadernoapp.com/api/transactions
--header 'Authorization: Basic ENCODED_API_KEY' \
--header 'Content-Type: application/json' \
--data '{
"type": "sale",
"currency": "GBP",
"customer": {
"first_name": "Alex",
"last_name": "Wick",
"street_line_1": "67 Church Lane",
"city": "London",
"postal_code": "E94 7RT",
"country": "GB"
},
"items": [
{
"description": "Simple Software",
"amount": 9.90,
"tax": {
"country": "GB",
"rate": 20.0,
"tax_code": "eservice".
}
}
],
"payment": {
"method": "credit_card",
"processor": "yourPaymentProcessorName",
"processor_id": "yourPaymentProcessorId1234"
},
"evidence": {
"billing_country": "GB",
"ip_address": "255.255.255.255",
"bank_country": "GB"
},
"processor": “yourPlatformName",
"processor_id": "yourPlatformTransactionId"
}'
- Now a new invoice has been generated for your sale and your tax reports have been updated and are ready to download.
Check our Getting Started guide to learn more!
Quaderno API Features
- Accurate tax calculation on every sale, worldwide
- Billing with automatic tax-compliant invoices and credit notes
- Webhook alerts for new tax obligations and registrations
- Tax reports by country or state
- Tax ID validation
- Quaderno Connect for building your own platform or marketplace
- Quaderno Checkout, if you don’t have your own checkout
- E-invoicing compliance with multiple countries, just with one API call.
Stay informed
- Tax Made Simple, our tax newsletter
- Blog
- Status page
- Github