VAT in Europe: Rates, Rules & Compliance Guide for Businesses
Your guide to VAT in Europe: how it works, current rates by country, registration rules, OSS, ViDA, and what non-resident businesses must do to stay compliant.
Input VAT vs Output VAT: Refunds, Rules, Returns
A practical guide to input VAT vs output VAT for SaaS finance teams, covering reclaim rules, VAT liability, cash flow, and filing automation.
VeriFactu Spain: What It Is, Who Must Comply, and 2027 Deadlines
Learn what VeriFactu is, who must comply, the 2027 deadlines, technical requirements, exemptions, and how to prepare for Spain's certified billing regulation.
501(c)(3) Sales Tax Exemption: What Nonprofits Need to Know by State
Are 501(c)(3) organizations exempt from sales tax? Learn how exemptions work, state-by-state differences, certificates, and compliance risks.
Top Customs Compliance Software for Global Companies in 2026
Learn how customs compliance software streamlines cross-border workflows, from automated declarations to tariff management, avoiding costly errors.
Direct Pay Permit: How It Works and Who Needs It
Direct pay permit guide for SaaS finance teams: learn how direct pay works, what purchases qualify, and how to invoice permit customers without errors.
What is a Voluntary Disclosure Agreement and Why Use It?
A clear guide to voluntary disclosure agreement programs, including eligibility, VDA process, tax due, and how businesses fix noncompliance.
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.
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.
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.
Taiwan Sales Tax: Complete VAT Guide for SaaS
How does Taiwan sales tax apply to U.S. SaaS? We cover the 5% rate, key exemptions, e-invoicing rules, and what automated compliance solutions you can choose.
Is SaaS Taxable in New York? Yes—Here’s Why
New York treats most SaaS subscriptions as taxable software. Learn about NY sales tax law for SaaS, including when to charge tax, how to register & file returns, and ways to stay compliant.