Announcing our $21M Series A led by a16z. Read more.
Product
Cross Border Compliance
End-to-end indirect tax compliance automation
AI Native Tax Engine
Tax Review and Assessment Model
About
Resources
Live Coverage Map
Real-time global tax coverage
Global Blog
International tax, AI, and compliance updates.
Knowledge Base
Sphere Guides and documentation
PricingJoin Us
Stay Updated
Let's Talk
Log In
Let's Talk
Stay Informed

Enter your email address to stay up to date on new releases

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.
blogs

Sphere's Global Compliance Blog

Find regional guides, tax developments and thought leadership at the intersection of AI and tax here

Building TRAM | The World’s First Tax Review and Assessment Model

Sphere's AI-native tax research system that interprets global indirect tax rules, builds product taxonomies, and automates taxability and rate determinations.

Alex Bowcut
23 Nov 2025
AI

Sphere Raises $21M Series A Led by Andreessen Horowitz

Sphere secured a $21M Series A led by a16z to build the first AI-native cross-border compliance engine, meeting rising demand for scalable global tax solutions.

Nick Rudder
18 Nov 2025
Announcements

What Is a Tax Exempt Certificate?

What is a tax exempt certificate? Learn how SaaS companies use them, who qualifies, and how to stay compliant across U.S. states and beyond.

Jennifer Dunn
10 Apr 2026
Indirect Tax

What Is a VAT/GST ID? Global Tax Guide for SaaS

Do you need a VAT or GST ID for global SaaS sales? This guide covers registration, verification, and compliance tips every CFO should know.

Jennifer Dunn
15 Jul 2026
SaaS

Preparing Your Business for E-Invoicing in Belgium

Belgium will require e-invoicing for B2B transactions by 2026. Learn the rules, timelines, and how to simplify compliance with automation.

Jennifer Dunn
30 Jun 2026
Regional Guides

Washington Sales Tax: Rates, Rules & Filing Guide

Understand Washington sales tax: the 6.5% state base rate, combined rates up to 10.25%, B&O tax, SaaS taxability, nexus rules, and 2026 filing deadlines

Jennifer Dunn
29 Jun 2026
Regional Guides

Turkey Digital Services Tax: Complete Guide

Complete guide to Turkey's Digital Services Tax: 5% rate, thresholds, scope, compliance steps, and how it compares to other European DSTs.

Jennifer Dunn
29 Jun 2026
Regional Guides

Merchant of Record: Pros, Cons, Options

Merchant of Record (MoR) explained for SaaS: how it works, benefits, drawbacks, and alternatives like PSPs and Sphere’s tax compliance software.

Jennifer Dunn
29 Jun 2026
Regional Guides

Brazil Tax Reform: How It Impacts Global SaaS

Guide to Brazil tax reform for finance teams: understand new dual VAT taxes replacing ICMS, ISS, PIS/COFINS, and how AI compliance tools help adapt to changes.

Jennifer Dunn
29 Jun 2026
Regional Guides

Maryland Sales Tax: Rates, Exemptions & Filing Guide

Complete guide to Maryland sales tax: 6% base rate, special rates, exemptions, nexus rules, and how to register and file via Maryland Tax Connect.

Jennifer Dunn
21 Jun 2026
Regional Guides

Tennessee Sales Tax: Rates, Rules & Compliance Guide

Complete guide to Tennessee sales tax: 7% state rate, local add-ons up to 2.75%, SaaS taxability, nexus rules, registration, and filing deadlines.

Jennifer Dunn
21 Jun 2026
Regional Guides

Tax Preparation Software for Professionals (7+ Tools Compared)

Explore professional tax preparation software for CPAs handling complex tax filing, business returns, and multi-client workflows across states.

Jennifer Dunn
21 Jun 2026
Tools

Top 4 Vertex Competitors for Global Tax Compliance

See how Vertex competitors compare on pricing, automation, and global coverage. Discover better tax compliance tools built for SaaS.

Jennifer Dunn
21 Jun 2026
Tools

Fonoa Competitors Explained for Global SaaS

Evaluating Fonoa competitors? See how top tax compliance platforms compare on VAT, sales tax, pricing models, and global scalability.

Jennifer Dunn
21 Jun 2026
Tools

Sales Tax Software for SaaS: How to Choose the Right Platform

Sales tax software for SaaS companies to automate registration, real-time tax calculation, filing, remittance, and global VAT and GST compliance.

Jennifer Dunn
21 Jun 2026
SaaS
Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Make the world

one market

End-to-end compliance automation for sales tax, VAT, and GST. 100+ regions. One platform. Built by 50 people who believe the compliance cost of every transaction should be zero.

Let's talk
Backed By
Privacy
Competitors
Terms