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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
16 Dec 2025
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
06 Dec 2025
SaaS

Does Japan Have Sales Tax? How to Simplify Your Japan Tax Obligations

Learn all about Japan’s sales tax system—JCT. Understand rates, what’s taxed, and how it compares to sales tax in other countries.

Jennifer Dunn
16 Dec 2025
Regional Guides

Can I Verify a Tax ID Number? | Full Guide

Learn how to verify tax ID numbers (EIN, SSN, ITIN, VAT) for compliance, fraud prevention, and audits. Real-time tools and global methods included.

Jennifer Dunn
16 Dec 2025
Indirect Tax

Complete Guide to Incorporation Documents

What are incorporation documents? This guide covers C Corp vs. LLC requirements, global equivalents, and how Sphere helps post-formation.

Jennifer Dunn
16 Dec 2025
Regional Guides

Customs Compliance: The Complete Guide for Global Businesses

Learn customs compliance basics: classification, origin, valuation. Avoid penalties, manage tariffs, and streamline trade with modern solutions.

Jennifer Dunn
16 Dec 2025
Indirect Tax

Chicago Sales Tax Guide for SaaS & Digital Goods

Discover how Chicago sales tax affects SaaS. Get clarity on PPLTT, Amusement Tax, nexus thresholds, IL registration, and compliance tips.

Jennifer Dunn
16 Dec 2025
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
16 Dec 2025
Regional Guides

9 Best TaxJar Alternatives for Global Sales Tax Compliance

Frustrated with TaxJar? Compare the 9 top alternatives out there. Explore pricing, features, and find the best choice for your growing business.

Jennifer Dunn
16 Dec 2025
Tools

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
16 Dec 2025
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
16 Dec 2025
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
16 Dec 2025
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
16 Dec 2025
SaaS
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