Announcing our $21M Series A led by a16z. Read more.
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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
10 Apr 2026
SaaS

Is SaaS Taxable in Florida? A Simple Breakdown

Learn if SaaS is taxable in Florida, key sales tax rules, economic nexus thresholds, exemptions, and how to register, file, and stay compliant—plus tips on making tax easy for SaaS businesses.

Ken Boyd
20 Feb 2026
Regional Guides

Is There Sales Tax in Dubai? VAT Rules Explained

Curious about sales tax in Dubai? Learn how VAT works, what’s taxed, and how it affects businesses and shoppers in the UAE.

Jennifer Dunn
20 Feb 2026
Regional Guides

Do US Companies Have a VAT Number?

Confused about VAT vs. sales tax? Learn why U.S. startups selling in the EU, UK, or Canada need to understand VAT rules, numbers, and registration triggers.

Jennifer Dunn
20 Feb 2026
Regional Guides

Chicago Amusement Tax Explained: Rules & Rates

Learn Chicago amusement tax rules: rates, exemptions, and compliance steps for SaaS and streaming, and the best ways and tools to approach it with.

Jennifer Dunn
20 Feb 2026
Regional Guides

Best Transfer Pricing Software for Compliance

Compare leading transfer pricing solutions. Find cloud-based, AI-powered tools to manage global compliance and streamline your TP process.

Jennifer Dunn
20 Feb 2026
Tools

Best AI Tax Software for 2025: Top 5 Tools Reviewed

Discover the best AI tax software for 2025. Compare Sphere, TaxGPT, Kintsugi & more for tax prep, filing, code assignment, nexus tracking & compliance.

Jennifer Dunn
20 Feb 2026
Tools
AI

Are Subscriptions Taxable? A Guide for SaaS & Digital Products

Are subscriptions subject to tax? Find out how SaaS, apps, and digital products are taxed in the US and globally in this guide.

Jennifer Dunn
20 Feb 2026
SaaS

Do I Charge Sales Tax to International Customers?

Should you charge sales tax to international customers? Get clear answers on VAT, GST, reverse charge, and how to stay compliant with Sphere.

Jennifer Dunn
20 Feb 2026
Indirect Tax

Manitoba Sales Tax (GST & RST): Complete Compliance Guide

Manitoba sales tax explained for SaaS: 5% GST + 7% RST, new 2026 cloud tax, registration, filing, and how Sphere simplifies compliance.

Jennifer Dunn
20 Feb 2026
Regional Guides

How Much Does Avalara Cost? Full Pricing Breakdown

How much does Avalara cost? See real pricing ranges, transaction fees, add-ons, and how Avalara compares to flat-rate alternatives like Sphere.

Jennifer Dunn
20 Feb 2026
Tools

Sales Tax Compliance for SaaS: What You Need to Know

SaaS companies face complex sales tax rules. This guide covers nexus, state SaaS taxability, international VAT/GST, and how Sphere automates compliance.

Jennifer Dunn
20 Feb 2026
Tools
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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.

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