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

Oregon Sales Tax: Rates, Rules & Filing Guide

Oregon has no general sales tax — here's what that means for SaaS businesses, what other taxes apply, and what to know if you sell into other states.

Jennifer Dunn
30 Jul 2026
Regional Guides

North Carolina Sales Tax: Rates, Rules & Filing Guide

Complete guide to North Carolina sales tax: 4.75% state rate, county add-ons up to 2.75%, SaaS exemption, nexus thresholds, registration, and filing deadlines.

Jennifer Dunn
30 Jul 2026
Regional Guides

Digital Service Tax Canada: What You Need to Know

A clear guide to Canada’s Digital Service Tax for SaaS teams. Learn the rules, thresholds, and how Sphere simplifies global tax compliance.

Jennifer Dunn
30 Jul 2026
Regional Guides

Best AI Accounting Software to Save Time and Stay Audit-Ready

Cut manual work with the best AI accounting software. Learn how CFOs automate bookkeeping and tax compliance to save time and improve accuracy.

Jennifer Dunn
30 Jul 2026
Tools

Tax Remittance: How It Works and Why It Matters

Learn how businesses remit sales, payroll, and estimated taxes with IRS-approved methods. Read about automated solutions and the new 1% remittance tax.

Jennifer Dunn
30 Jul 2026
Indirect Tax

Tariff vs Tax vs Import Duties: Impact on SaaS and AI Companies

Understand tariff vs tax and their impact on SaaS and AI companies. Learn how they affect costs, compliance, and how to simplify global growth.

Jennifer Dunn
30 Jul 2026
Indirect Tax

South Korea VAT Guide for Digital Services

Your guide to South Korea VAT for digital service providers. Step-by-step tips on registration, filing, invoices, and reverse charge rules.

Jennifer Dunn
30 Jul 2026
Regional Guides

New Jersey Sales Tax Guide for SaaS and Digital Businesses

Complete guide to New Jersey sales tax: 6.625% flat rate, no local add-ons, SaaS taxability rules, information services, nexus thresholds, filing deadlines.

Jennifer Dunn
07 Jul 2026
Regional Guides

10-Step SOX Compliance Checklist for Tech Companies

Learn how to build a SOX compliance program with internal audits, financial reporting, documentation, automation, and access controls.

Nathan Collier
06 Jul 2026
Indirect Tax

Global SaaS 101: What Is Transfer Pricing?

What is transfer pricing for SaaS? Learn arm’s length rules, OECD/IRS methods, docs, and risks, plus tools to scale compliance across tax jurisdictions.

Jennifer Dunn
06 Jul 2026
Indirect Tax

Form 10F (India): Avoid Double Taxation – Complete Guide

Form 10F India is a tax form for non-residents to claim DTAA benefits and avoid double taxation on Indian income. Learn who needs to file, required documents, filing steps, and consequences of non-compliance.

Jennifer Dunn
06 Jul 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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