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Avalara Tax Calculation API

Calculate Brazilian taxes on transactions

Avalara Tax Calculation API is one of 73 APIs that Avalara publishes on the APIs.io network, described by a machine-readable OpenAPI specification and an AsyncAPI event-driven specification.

Tagged areas include Tax Calculation. The published artifact set on APIs.io includes an OpenAPI specification, API documentation, and an AsyncAPI specification.

This API exposes 4 operations across 4 paths, and defines 18 schemas. It is described by OpenAPI 3.2.0, at version 1.0.

Requests are made against 2 base URLs: https://avataxbr-sandbox.avalarabrasil.com.br/v3, https://communicationsua.avalara.net.

4 operations 4 paths 18 schemas 4 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.2.0
API Version
1.0
Servers
https://avataxbr-sandbox.avalarabrasil.com.br/v3
https://communicationsua.avalara.net
Authentication
HTTP Bearer, HTTP Basic
License
Terms of Service
Resource Areas
1

Authentication & Security 2

Avalara Tax Calculation API declares 2 security schemes for authenticating requests. It accepts HTTP bearer tokens (bearerAuth). It accepts HTTP basic authentication (basicAuth).

  • bearerAuth — Bearer token authentication
  • basicAuth — Use your AFC SaasPro credentials for basic authentication

Paths & Operations 4

Across 4 paths, the API surfaces 4 operations — 4 POST. Each is listed below with its method, path, parameters, and response codes.

Tax Calculation 4

Calculate Brazilian taxes on transactions

POST
/calculations
Avalara Calculate Brazilian Taxes
calculateTax body → 200400401
POST
/api/v2/afc/CalcTaxes
Avalara Calculate Taxes on a Transaction
calcTaxes body → 200400401
POST
/api/v2/afc/commit
Avalara Commit a Transaction
commitTransaction body → 200
POST
/api/v2/afc/CalcAdj
Avalara Calculate Adjustment Taxes
calcAdjustment body → 200

Schemas 18

The contract defines 18 schemas that model the data the API accepts and returns. The most detailed are TaxResult (16 properties), CalculationLine (10 properties), LineItem (10 properties), Location (7 properties). Each schema is shown below with its type and property counts.

CalculationLine
object
10 properties
CalculationResultLine
object
3 properties
TaxResult
object
16 properties
Location
object
7 properties
CommitRequest
object
2 properties
Invoice
object
6 properties
CalculationResponse
object
2 properties
LineItemResult
object
2 properties
CompanyData
object
5 properties
CommitResponse
object
1 property
CalculationRequest
object
2 properties 2 required
CalcAdjRequest
object
3 properties
LineItem
object
10 properties
ErrorResponse
object
1 property
CalcTaxesResponse
object
1 property
BrazilTaxDetail
object
6 properties
InvoiceResult
object
2 properties
CalcTaxesRequest
object
2 properties 2 required

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

avalara-tax-calculation-api-openapi.yml Raw ↑

Other APIs Avalara publishes across the network.

AvaTax SOAP API
Avalara Tax Content for Retail Configuration API
Self-Serve Tariff Classification API
License Guidance Order API
Avalara 1099 Forms API
Avalara Accounts API
Avalara Addresses API
Avalara AdvancedRules API
Avalara Attributes API
Avalara Authentication API
Avalara AvaFileForms API
Where this information came from

This is an independent, third-party profile of Avalara Tax Calculation API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

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