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
30 Jul 2026
SaaS

SaaS Sales Tax by State: What Every Business Must Know

Learn how SaaS sales tax works in the US, where it applies by state, and how to stay compliant with AI-powered automation from Sphere.

Jennifer Dunn
10 Apr 2026
SaaS

Singapore GST Rules for Digital Businesses

Learn how to register, file, and stay compliant with Singapore GST. Designed for SaaS companies selling into Singapore.

Jennifer Dunn
10 Apr 2026
Regional Guides

VAT Refund: Step-by-Step Guide for US Businesses

Explore the VAT refund process for B2B companies in the USA. Get tips on eligibility, documentation, and automation with Sphere’s tax compliance platform.

Jennifer Dunn
10 Apr 2026
Indirect Tax

VAT Registration Dubai: FTA Guide for SaaS & Digital Businesses

VAT registration in Dubai explained: thresholds, TRN, EmaraTax steps, input tax, and compliance tips for SaaS and global digital businesses.

Jennifer Dunn
10 Apr 2026
Regional Guides

Top 8 Financial Reporting Tools for Modern CFOs

Upgrade your financial reporting with AI-driven tools leveraging automation, real-time dashboards, and integrated tax compliance, boosting accuracy and speed.

Jennifer Dunn
10 Apr 2026
Tools

Sales Tax in Norway: Your Guide to VAT Compliance

Navigate sales tax in Norway with our expert guide to VAT. Learn about rates, registration (VOEC vs. VAT Register), and compliance for your global business. Simplify your tax obligations.

Jennifer Dunn
10 Apr 2026
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
10 Apr 2026
Regional Guides

Peppol E-Invoicing Network Compliance Guide

A practical guide to the Peppol E-Invoicing Network covering Peppol BIS standards, interoperability, global adoption, and implementation options.

Jennifer Dunn
03 Apr 2026
Indirect Tax

VAT vs Sales Tax: How They Work + Examples

Learn the key differences between sales tax vs VAT, how each works, and what global businesses need to manage compliance across jurisdictions.

Jennifer Dunn
03 Apr 2026
Indirect Tax

A Step-by-Step Guide to E-Invoicing in Europe

Learn how e-invoicing in Europe works, which countries have mandates, what ViDA changes, and how businesses should prepare for compliance.

Jennifer Dunn
03 Apr 2026
Regional Guides

Permanent Establishment Risk: Triggers and How to Avoid

Understand permanent establishment risk: fixed place, dependent agent, service and project PE, plus how to track exposure and reduce tax liabilities.

Jennifer Dunn
28 Mar 2026
Indirect Tax
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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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