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Lookuptax

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Lookuptax is a tax ID and VAT validation platform built for cross-border businesses, SaaS companies, marketplaces, and finance/compliance workflows. At its core, it provides a unified API and validation infrastructure for verifying tax identifiers across 100+ countries IDs such as - EU VAT numbers - GSTINs - EIN/TINs - Business tax registration numbers - Regional tax identifiers Instead of integrating separately with dozens of government databases and tax authority systems, businesses can integrate once with Lookuptax and validate globally through a single API Key capabilities include: Real-time tax ID validation Bulk verification workflows Country-specific format validation Audit trails/history Unified API abstraction across jurisdictions Coverage of multiple national tax registries under one platform The main use cases are: VAT exemption validation for B2B SaaS Preventing fraudulent tax IDs Automating tax compliance during checkout/onboarding Supporting reverse-charge VAT workflows Cross-border invoicing compliance

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