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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
02 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

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
26 Nov 2025
Regional Guides

Is SaaS Taxable in Colorado? A Simple Breakdown

Is SaaS taxable in Colorado? Learn how state and home rule city taxes work — and how to stay compliant.

Jennifer Dunn
26 Nov 2025
Regional Guides

Expanding Globally: How to Get a VAT Number

Expanding internationally? Learn how to get a VAT number for your SaaS or digital product business. Our expert guide covers VAT registration steps, key concepts like OSS and reverse charge, and how Sphere simplifies global VAT compliance.

Jennifer Dunn
26 Nov 2025
Regional Guides

How is VAT Calculated? Step-by-Step Guide

Learn how VAT is calculated step by step: formulas, examples, and how to account for input/output VAT. Perfect for SaaS teams and global sellers.

Jennifer Dunn
26 Nov 2025
Indirect Tax

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
26 Nov 2025
Regional Guides

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
26 Nov 2025
Regional Guides

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
26 Nov 2025
Regional Guides

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
26 Nov 2025
Regional Guides

Australia Sales Tax for SaaS Startups: Compliance Guide

Selling software to Australia? Understand your GST (Australia sales tax) obligations. This guide covers who must register, how to charge 10% GST, file with the ATO, and easily stay compliant via automation.

Jennifer Dunn
26 Nov 2025
Regional Guides

Avalara Alternatives: Best Tax Compliance Software in 2025

Exploring Avalara alternatives? Compare the best tax compliance software for 2025, including tools for sales tax automation, global VAT, and transparent pricing.

Nick Rudder
26 Nov 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
26 Nov 2025
Regional Guides
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