Avalara AvaTax vs ShipVAT

Avalara AvaTax calculates tax in real time for sales and purchasing workflows. It covers sales tax, consumer use tax, VAT, communications tax, occupancy and lodging tax, and excise tax, and supports automated return filing and tax registration. Address validation uses geospatial technology to match transactions to tax regions rather than relying on ZIP codes. AvaTax connects with ecommerce, ERP, accounting, sales, and purchasing systems, and its REST API supports calculation, document modification, and address validation. Product taxability codes, AI-assisted item classification, custom rules, exemption certificate management, and jurisdiction-specific tax research support tax decisions. Reporting includes dashboards, natural-language search, and audit-ready trails. The service is available through web and API, with integrations including Shopify, NetSuite, QuickBooks, SAP, and Salesforce. Core Compliance costs $79 per month; Core Compliance + SST Services costs $69 per month for qualifying sellers. Qualified sellers may receive state-funded services in up to 25 states. Pricing also varies by plan and transaction volume.

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.