DeterminedAI is an indirect tax compliance platform purpose-built for SaaS, e-commerce, and digital-services companies selling cross-border. We replace the patchwork of local accountants, spreadsheets, and US-centric tax engines with a single workflow that covers exposure, registration, determination, and filing across 60+ VAT and GST regimes. **What you get:** - **Free Exposure Check** — connect Stripe or upload a CSV and we surface every jurisdiction where you've crossed a registration threshold, with the exact rule and revenue figure. - **AI-powered Tax Engine** — real-time VAT, GST, and US sales tax determination on every transaction, with live VIES, HMRC, BrasilAPI, and ABR tax-ID validation and audit-ready evidence. - **Registrations** — self-serve at $99 per jurisdiction, or managed at $499 where we submit on your behalf. EU OSS, UK HMRC, Norway VOEC, Singapore OVR, Japan JCT, India OIDAR, Australia Simplified GST, and 25 more. - **Returns** — quarterly EU OSS Non-Union filings at $99 per submission, MTD-compliant UK VAT through the HMRC API. **Free public tools** include a 153-jurisdiction worldwide VAT/GST rate chart, a 150-jurisdiction filing-deadline lookup, a multi-registry tax-ID validator, 62 country-specific VAT guides, and a live VIES uptime page. **Built for finance and engineering teams** who need an alternative to Avalara, Vertex, Sovos, and Stripe Tax for nonresident VAT and GST. No setup fees. No minimum contracts. Free tier is permanent. SOC 2 Type 1 in progress; HMRC MTD production credentials approved.