Kintsugi vs Sphere
Kintsugi
Ecommerce, SaaS and finance teams
San Francisco, US; founding year not published
Sphere
Companies selling across borders, typically US$10m+ ARR with multiple entities; also billing and commerce platforms and accounting and tax advisory firms
Kintsugi and Sphere both automate indirect tax compliance, from monitoring where tax is owed to registration, filing and remittance.
Kintsugi, based in San Francisco, serves 7,000+ businesses in ecommerce, SaaS and finance, with US sales tax on every plan; Sphere, backed by Andreessen Horowitz, focuses on cross-border sales tax, VAT and GST across 130+ jurisdictions for companies such as ElevenLabs, Replit and Deel.
Kintsugi vs Sphere: side by side
“Not published” means the vendor does not state it.
| Kintsugi | Sphere | |
|---|---|---|
| What it does | Sales tax, VAT and GST compliance: exposure (nexus) monitoring, registrations, filing and remittance, exemption certificates and back filing, with an AI assistant (Kin) | AI-native cross-border indirect tax compliance: sales tax, VAT and GST monitoring, registration, calculation, filing and remittance across 130+ jurisdictions |
| Best for | Ecommerce, SaaS and finance teams | Companies selling across borders, typically US$10m+ ARR with multiple entities; also billing and commerce platforms and accounting and tax advisory firms |
| Founded and HQ | San Francisco, US; founding year not published | Not published |
| Ownership and funding | Not published | Private; Series A US$21m led by Andreessen Horowitz with Y Combinator and Felicis (Nov 2025); 20VC also listed as a backer |
| Customers or users | 7,000+ businesses | Named customers include ElevenLabs, Replit, Lovable, Deel, Ramp, Framer, Cognition, Runway and Fyxer |
| Pricing | Free exposure monitoring; Starter from US$75 per filing or registration; Premium custom with volume discounts; month to month, no transaction fees | Starter US$100 per region per month (under 10 regions, up to 50,000 transactions); Growth (10+ regions) custom; per-transaction fee above 50,000 |
| Deployment and markets | US sales tax on every plan; Canada, the EU, the UK and 100+ countries on Premium | Cloud platform; 130+ jurisdictions worldwide (US states, Canada, EU, UK, Australia, India and more), with direct connections to tax authorities |
Main differences
Kintsugi serves 7,000+ ecommerce, SaaS and finance teams; Sphere serves companies selling across borders, typically from US$10m ARR with multiple entities.
Kintsugi offers free exposure monitoring and charges from US$75 per filing or registration; Sphere's Starter plan costs US$100 per region a month for under 10 regions.
Kintsugi covers US sales tax on every plan and other countries on Premium; Sphere covers 130+ jurisdictions, filing through direct connections to tax authorities.
Kintsugi handles exemption certificates and back filing; Sphere adds input tax recovery and e-invoicing add-ons and provides a local representative where a scheme requires one.
Which to choose
Choose Kintsugi if
- Most of your exposure is US sales tax and you want to pay per filing or registration
Choose Sphere if
- You sell software across borders from several entities and need VAT and GST filed in many countries
Compare further
Common questions
What is the difference between Kintsugi and Sphere?+
Kintsugi covers sales tax, VAT and GST compliance: exposure monitoring, registrations, filing and remittance, exemption certificates and back filing, with an AI assistant called Kin. Sphere covers cross-border sales tax, VAT and GST monitoring, registration, calculation, filing and remittance across 130+ jurisdictions, through direct connections to tax authorities.
How much do Kintsugi and Sphere cost?+
Kintsugi offers free exposure monitoring; Starter costs from US$75 per filing or registration and Premium is custom, month to month with no transaction fees. Sphere's Starter plan costs US$100 per region a month for under 10 regions and up to 50,000 transactions; Growth, for 10+ regions, is custom.
Which countries do Kintsugi and Sphere cover?+
Kintsugi covers US sales tax on every plan, and Canada, the EU, the UK and 100+ countries on Premium. Sphere covers 130+ jurisdictions, including US states, Canada, the EU, the UK, Australia and India.
Part of Accountio’s accounting technology coverage.
