TaxJar

aid: taxjar
name: TaxJar
description: TaxJar is a sales tax automation platform, now a Stripe company, providing APIs for real-time sales tax calculations,
  rooftop-level rate lookups, transaction recording, and automated filing across US states and international jurisdictions.
  The platform supports e-commerce businesses of all sizes with sub-20ms response times, 99.999% historical uptime, and AI-powered
  product tax classification. TaxJar handles nexus tracking, exemption certificate management, and AutoFile returns so merchants
  can stay compliant without manual effort. Official client libraries are available for Ruby, Python, PHP, Node.js, C#/.NET,
  Java, and Go.
type: Index
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
- Sales Tax
- Tax Compliance
- E-Commerce
- Tax Calculation
- Tax Automation
- Stripe
- FinTech
url: https://raw.githubusercontent.com/api-evangelist/taxjar/refs/heads/main/apis.yml
created: '2026-06-12'
modified: '2026-06-12'
specificationVersion: '0.19'
apis:
- name: TaxJar Sales Tax API
  description: REST API for real-time sales tax calculation, rate lookups, tax category listing, transaction management (create,
    update, delete, list), customer exemption management, nexus region tracking, and address validation. Supports token-based
    authentication via Authorization header.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://developers.taxjar.com/api/reference/
  baseURL: https://api.taxjar.com/v2/
  tags:
  - Sales Tax
  - Tax Calculation
  - Tax Rates
  - Transactions
  - Exemptions
  - Nexus
  properties:
  - type: Documentation
    url: https://developers.taxjar.com/api/reference/
  - type: Guides
    url: https://developers.taxjar.com/api/guides/
  - type: Sandbox
    url: https://api.sandbox.taxjar.com/v2/
  - type: OpenAPI
    url: openapi/taxjar-sales-tax-openapi.yml
  - type: JSONSchema
    url: json-schema/taxjar-order-schema.json
  - type: JSONSchema
    url: json-schema/taxjar-tax-calculation-schema.json
common:
- type: Website
  url: https://www.taxjar.com
- type: Documentation
  url: https://developers.taxjar.com/
- type: APIReference
  url: https://developers.taxjar.com/api/reference/
- type: GitHubOrganization
  url: https://github.com/taxjar
- type: LinkedIn
  url: https://www.linkedin.com/company/taxjar
- type: Blog
  url: https://developers.taxjar.com/blog/
- type: Pricing
  url: https://www.taxjar.com/pricing/
- type: StatusPage
  url: https://status.taxjar.com
- type: X
  url: https://x.com/taxjardev
- type: Support
  url: https://support.taxjar.com/category/233-taxjar-api
- type: Signup
  url: https://app.taxjar.com/api_sign_up/
- type: Plans
  url: plans/taxjar-plans-pricing.yml
- type: RateLimits
  url: rate-limits/taxjar-rate-limits.yml
- type: FinOps
  url: finops/taxjar-finops.yml
- type: Vocabulary
  url: vocabulary/taxjar-vocabulary.yml
- type: JSONLDContext
  url: json-ld/taxjar-context.jsonld
- type: BlogFeed
  url: blogs/blogs.json
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com