Sphere alternatives

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Sphere alternatives

Sphere is AI-native indirect tax software for companies selling across borders, covering sales tax, VAT and GST monitoring, registration, calculation, filing and remittance across 130+ jurisdictions. Backed by Andreessen Horowitz, it names ElevenLabs, Replit, Deel and Ramp as customers.

Teams comparing it usually look at Anrok and Fonoa for cross-border software and digital sales, at Avalara among established providers, at Numeral and Kintsugi among newer automated tools, and at Zamp for a managed service.

What Sphere does

AI-native cross-border indirect tax compliance: sales tax, VAT and GST monitoring, registration, calculation, filing and remittance across 130+ jurisdictions.

Founder
Nicholas Rudder (CEO); out of stealth in December 2024
Funding
Series A US$21m led by Andreessen Horowitz with Y Combinator and Felicis (November 2025)
Customers
ElevenLabs, Replit, Lovable, Deel, Ramp, Framer, Cognition, Runway and Fyxer
Pricing
Starter US$100 per region a month (under 10 regions); Growth, for 10+ regions, custom
Full Sphere profile →

Alternatives in Tax and Compliance

49 other vendors in this category. Vendors with an Accountio profile are shown first; the rest of the directory follows.

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More tax and compliance vendors in the directory

  • AibidiaDigital transfer pricing documentation and benchmarking.Europe
  • AlphataxUK corporation tax and accounts production with iXBRL and HMRC filing.United Kingdom
  • BitwaveCrypto accounting and tax lot tracking that feeds into your ERP.North America
  • Blue dotAI VAT reclaim and taxable benefit analysis on employee spend.Middle East
  • Blue JAI tax research with citations to legislation and case law.North America
  • CereTaxHigh-volume sales and use tax engine with configurable rules.North America
  • CommendaEntity formation, tax registration and filings for global expansion.North America
  • Comply ExchangeAutomated W-8 and W-9 collection, validation and reporting.North America
  • CorptaxCorporate tax provision, compliance and planning from one data set.North America
  • CryptioCrypto tax and accounting reconciled into audit-ready books.United Kingdom
  • DDD InvoicesAPI-first compliance layer for global e-invoicing and tax reporting.Europe
  • EdicomGlobal EDI, e-invoicing and compliant digital archiving.Europe
  • ExacteraTransfer pricing, provision and R&D credit software for tax teams.North America
  • FintuaVAT reclaim on foreign spend, plus global registrations and returns.Europe
  • FiskalyCloud fiscalisation for point of sale and ERP compliance.Europe
  • hellotaxVAT registration and filing for online sellers across Europe.Europe
  • InsteadAI tax planning modelled year round, not just at filing.North America
  • KoinlyCrypto tax reports from exchange and wallet transaction imports.United Kingdom
  • LedgibleCrypto tax and accounting built for firms and institutions.North America
  • MarosaVAT registration, returns and Intrastat across Europe.Europe
  • OrbitaxInternational tax research, compliance and Pillar Two calculations.North America
  • QuadernoTax calculation API and compliant invoicing for digital businesses.Europe
  • RyanTax recovery, consulting and compliance software for corporate teams.North America
  • SNISAP-integrated e-invoicing for government mandates worldwide.Asia Pacific
  • SovosTax compliance and e-invoicing mandates across multiple jurisdictions.North America
  • StorecoveE-invoicing API for Peppol and national invoicing networks.Europe
  • Stripe TaxTax calculation and nexus monitoring built into Stripe payments.North America
  • TaxBanditsIRS e-filing for 1099, W-2, 941 and ACA returns.North America
  • TaxBitDigital asset tax reporting and corporate crypto subledger.North America
  • TaxCloudSales tax calculation and filing for online sellers.North America
  • TaxdooVAT, OSS filing and bookkeeping export for ecommerce sellers.Europe
  • TaxPlanIQTax planning with quantified client return on investment.North America
  • TaxuallyAutomated VAT registration and returns for European sellers.United Kingdom
  • TaxwireSales tax registration, filing and nexus monitoring.North America
  • Thomson Reuters ONESOURCECorporate tax platform for direct, indirect and transfer pricing work.North America
  • TPGenieTransfer pricing documentation, benchmarking and CbC reporting.Europe
  • UnifiedpostE-invoicing and payments compliant with European mandates.Europe
  • VATCalcVAT determination, e-invoicing and live returns in one engine.United Kingdom
  • VatglobalVAT registration, returns and refund recovery across markets.United Kingdom
  • VertexEnterprise indirect tax determination and returns for multinationals.North America
  • Zenwork Tax10991099 and W-2 e-filing with recipient delivery and TIN matching.North America

How to choose

  • Which taxes do you need covered: US sales tax, VAT and GST, e-invoicing mandates, or corporate and direct tax?
  • Do you want software that calculates and files, or a managed service that also handles registrations and notices?
  • Does it connect to the billing, e-commerce and ERP systems where your transactions are created?
  • How is it priced: by transactions, by filings, by jurisdictions, or a flat fee?

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Common questions

What are the main alternatives to Sphere?+

Anrok and Fonoa are the closest cross-border alternatives. Avalara is the established provider, Numeral and Kintsugi are newer automated tools, and Zamp is a managed service.

How much does Sphere cost?+

Sphere's Starter plan costs US$100 per region a month for under 10 regions and up to 50,000 transactions, with a per-transaction fee above that. Its Growth plan, for 10+ regions, is custom.

Does Sphere work with accounting firms?+

Yes. Accounting and tax advisory firms can refer clients to Sphere or white-label it under their own brand.

Part of Accountio’s accounting technology coverage.