Welcome to Wolters Kluwer!
We provide industry-leading APIs.
99.95% availability
Our APIs can be used for mission-critical systems.
25 million API calls daily
Our APIs define the industry's standards.
1 million active users
Millions of people trust us.
About us
Wolters Kluwer is a global leader in professional information, software solutions, and services for the health, tax & accounting, governance, risk & compliance, and legal & regulatory sectors. Wolters Kluwer, headquartered in Alphen aan den Rijn, the Netherlands, reported 2020 annual revenues of €4.6 billion. The group serves customers in over 180 countries, maintains operations in over 40 countries, and employs approximately 19,200 people worldwide.
Our APIs
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Tax Calculation
API
SureTax calculation APIs can be used to calculate accurate indirect tax due for a client...
Returns Generation
API
Returns generation APIs can be used to generate accurate indirect tax returns on time...
Returns Filing
API
Returns generation APIs can be used to transmit and automatically e-file indirect tax returns...
Example api request format
GET /api/Forms/Due
"data": {
"result": [
{
"id": "08e06643-c07a-4903-867a-e26936d29012",
"clientId": 1234,
"state": "CO",
"taxAuthorityId": 36,
"taxAuthorityName": "COLORADO DEPARTMENT OF REVENUE",
"taxFormId": "CO_DR0252",
"fiscalYearStartMonth": 1,
"periodFromDate": "2022-05-01T00:00:00",
"periodToDate": "2022-05-31T00:00:00",
"locationId": "$webSales",
"dueDate": "2022-06-20T00:00:00"
}
}
"status": "OK",
"errors": null
}
Trust is our priority
"SureTax Returns APIs drive our digital transformation. They are highly reliable and blazingly fast."