Complyt vs ShipVAT
Complyt
complyt.ioShipVAT
shipvat.comSide by side
| Figure | Complyt | ShipVAT |
|---|---|---|
| Price from | — | $49/mo |
| Free plan | — | Yes |
| Free trial | — | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 0 | 3 |
| Spec score · Sales Tax Software | 7.2 (#16) | 8.7 (#3) |
| Spec score · Tax Engine Software | 7.1 (#22) | 8.7 (#4) |
| Address validation | The Address Validation API checks U.S. addresses against official postal databases and returns suggested matches with confidence scores. | Address endpoints validate and normalize addresses and expose supported countries and regional subdivisions. |
| Authentication | The API uses client ID and client secret credentials to obtain an Auth0 bearer token that expires after 24 hours. | API requests use Bearer-token authentication with separate sk_test and sk_live key formats. |
| Nexus thresholds | The transaction guide distinguishes estimates, which do not count against nexus thresholds, from invoices, which do. | The thresholds endpoint supports VAT registration, US remote-seller nexus, Canadian PST nexus and GST small-supplier threshold types. |
| Tax calculation | The API returns a calculated sales tax amount and the applicable rate. | The calculation endpoint accepts one to 100 line items and supports physical goods, digital goods, SaaS, services and streaming products. |
Plans
In their own words
Complyt
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.
ShipVAT
ShipVAT provides an API for calculating VAT, sales tax, and GST across 93 jurisdictions. The maker lists the EU, UK, US, Canada, and Australia among supported regions, and describes economic nexus threshold intelligence for all 50 US states and beyond. API functions include tax calculations, rate and threshold lookup, transaction and customer management, VAT validation, compliance reports, webhooks, and address validation. ShipVAT says rates include a source URL, verification timestamp, and effective dates, with tax data curated from official sources. Developers can use a TypeScript SDK, OpenAPI 3.0, Swagger UI, and curl examples. Endpoints use Bearer-token authentication with test and live key formats. The API is described as working with Paddle, LemonSqueezy, PayPal, or any payment stack. The Free plan costs nothing and allows 100 API calls per month. Pro costs $49 a month for 50,000 calls; Enterprise pricing is custom and its listed call limit is unlimited.