Skip to content
SPECIFICTION
Get listed

Complyt

complyt.io

WebAPI
Visit complyt.io
Spec score 7.2 #16 of 24 in Sales Tax Software

What it is

Complyt is an API and web sales tax engine for business transactions. Its API accepts line items, shipping addresses, transaction status, and related details, then returns a calculated tax amount and applicable rate. The US rate endpoint currently supports supplied addresses in the United States, while documentation describes VAT and global tax for international transactions. Customer records can be classified as retail, reseller, or marketplace, and those categories can affect taxability and nexus thresholds. Complyt distinguishes estimates, which do not count toward nexus thresholds, from invoices, which do. It offers nexus monitoring and an exemptions endpoint for exempt customers. Address Validation checks US addresses against official postal databases and returns suggested matches with confidence scores. Xero integration calculates line-level US sales tax using jurisdiction, nexus, exemptions, and product type; Xero tax calculation requires a US shipping or billing address. API access uses a client ID and secret to obtain a bearer token that expires after 24 hours. Pricing is on request.

Spec sheet

Product
Complyt provides a sales tax engine for calculating sales tax on transactions.Read 9 Oct 2026 · docs.complyt.io
Address validation
The Address Validation API checks U.S. addresses against official postal databases and returns suggested matches with confidence scores.Read 9 Oct 2026 · docs.complyt.io
API access
Protected API requests require a bearer token in the Authorization header.Read 9 Oct 2026 · docs.complyt.io
API response detail
Transaction retrieval can return a simplified response or expanded details including item, tax-rate, and jurisdictional-rule fields.Read 9 Oct 2026 · docs.complyt.io
Authentication
The API uses client ID and client secret credentials to obtain an Auth0 bearer token that expires after 24 hours.Read 9 Oct 2026 · docs.complyt.io
Customer records
Customer types include retail, reseller, and marketplace, and customer type can affect nexus thresholds and taxability.Read 9 Oct 2026 · docs.complyt.io
Customer types
The engine recognizes retail, reseller, and marketplace customer types, which can affect nexus thresholds and taxability.Read 8 Oct 2026 · docs.complyt.io
Exemptions
Users can upload customer exemption documentation in the platform so Complyt excludes that customer from tax calculations.Read 9 Oct 2026 · docs.complyt.io
Integration workflow
The transaction guide shows creating a customer and transaction through Complyt's API.Read 8 Oct 2026 · docs.complyt.io
Nexus thresholds
The transaction guide distinguishes estimates, which do not count against nexus thresholds, from invoices, which do.Read 8 Oct 2026 · docs.complyt.io
Pricing
The opened official pages do not state a product subscription price.Read 9 Oct 2026 · complyt.io
Supported users
The company profile describes Complyt as serving businesses in SaaS, e-commerce, retail, and professional services.Read 8 Oct 2026 · cbinsights.com
Tax calculation
The API returns a calculated sales tax amount and the applicable rate.Read 9 Oct 2026 · docs.complyt.io
Transaction support
The API supports creating transactions and records fields such as line items, shipping addresses, and transaction status.Read 9 Oct 2026 · docs.complyt.io
US sales tax rates
The sales tax rates endpoint returns a rate based on a supplied address and currently supports addresses in the United States only.Read 8 Oct 2026 · docs.complyt.io
VAT and global tax
The documentation describes support for VAT or global tax on international transactions.Read 8 Oct 2026 · docs.complyt.io
Xero address requirement
Complyt calculates tax for Xero invoices only when the shipping or billing address is in the United States, and recommends complete addresses.Read 9 Oct 2026 · docs.complyt.io
Xero integration
Complyt’s Xero app adds a tax rate that triggers line-level calculations based on jurisdiction, nexus, exemptions, and product type.Read 9 Oct 2026 · docs.complyt.io

Strong points and limits

Strong points

  • Calculates tax amounts and applicable rates
  • Supports US sales tax and global VAT
  • Handles nexus monitoring and exemptions
  • Validates US addresses with confidence scores
  • Provides Xero and API workflows

Limits

  • US rate endpoint supports US addresses only
  • Bearer tokens expire after 24 hours
  • Pricing is available only on request

Who it suits

It suits SaaS, e-commerce, retail, and professional-services businesses needing programmable tax calculation, nexus handling, exemptions, address validation, or Xero integration.

Verdict

Complyt combines transaction tax calculation with customer types, nexus rules, exemptions, address validation, and Xero support. Teams integrating the API must manage client credentials and recurring token expiration.

Where Specifiction places it

Alternatives to ComplytAll alternatives →