Alberto García
Founder & Engineer · TaxID
Engineer with background in fintech and payments infrastructure. Built TaxID after encountering VIES integration pain firsthand while working on B2B SaaS billing — SOAP endpoints, silent errors, and two-second response times on a good day. Writes about EU VAT compliance, API design, and payments.
Articles by Alberto García
EU VAT Number Validation: The Complete Developer Guide (2026)
May 11, 2026 · 15 min read
VIES Downtime: How to Build a Resilient VAT Validation Flow
April 3, 2026 · 12 min read
B2B VAT Exemption in EU SaaS: What Your Billing System Must Do
April 10, 2026 · 12 min read
Vatstack vs TaxID: Which EU VAT API Is Right for You?
April 17, 2026 · 10 min read
German VAT Number Validation: USt-IdNr Format, VIES, and Common Errors
April 24, 2026 · 10 min read
DAC7 Compliance for Marketplace Platforms: VAT Verification Requirements
May 1, 2026 · 11 min read
Free EU VAT Validation APIs: Honest Comparison of Limits and Trade-offs
May 8, 2026 · 9 min read
EU VAT Validation in Node.js: Complete Tutorial with Error Handling
May 14, 2026 · 14 min read
French VAT Number Validation: TVA Intracommunautaire Format, VIES, and Code Examples
February 27, 2026 · 10 min read
Italian VAT Number Validation: Partita IVA Format, VIES, and Code Examples
March 6, 2026 · 10 min read
Spanish VAT Number Validation: NIF Format, VIES, and Code Examples
March 13, 2026 · 11 min read
Polish VAT Number Validation: NIP Format, VIES, and Code Examples
March 20, 2026 · 9 min read
Netherlands VAT Number Validation: BTW-nummer Format, VIES, and Code Examples
March 27, 2026 · 10 min read
EU VAT Rates by Country 2026: The Complete Guide
May 24, 2026 · 10 min read
Germany VAT Rates 2026: Standard, Reduced & Zero-Rated Explained
May 25, 2026 · 8 min read
France TVA Rates 2026: Complete Guide for Businesses and Developers
May 26, 2026 · 8 min read
VAT for Developers: The Complete 2026 Implementation Guide
May 27, 2026 · 12 min read
How to Use a VAT Rates API: Developer Integration Guide
May 28, 2026 · 10 min read
SaaS VAT Compliance: A Developer's Complete Guide for EU Markets
May 29, 2026 · 14 min read
What is a VAT Validation API and Why Your SaaS Needs It
June 2, 2026 · 12 min read
How to Integrate a VAT Number Check API into Your Checkout Flow
June 3, 2026 · 10 min read
Stripe EU VAT: How to Validate Tax IDs Before Charging Customers
June 4, 2026 · 9 min read
EU VAT Validation API: A Comprehensive Guide for B2B SaaS
June 5, 2026 · 13 min read
Automating B2B Invoice VAT Validation for Global Sales
June 6, 2026 · 9 min read
Choosing the Best VAT API: Comparison of Features and Pricing
June 9, 2026 · 10 min read
Validate VAT Numbers in 31 Countries: A Deep Dive into the TaxID API
June 10, 2026 · 11 min read
B2B vs B2C EU VAT for Digital Services: The Developer's Decision Guide
June 4, 2026 · 9 min read
Reverse Charge VAT for SaaS: A Developer's Implementation Guide
June 5, 2026 · 10 min read
The Benefits of Real-time VAT Number Verification for SaaS Businesses
June 6, 2026 · 9 min read
EU VAT Rules for Digital Services: OSS, MOSS, and What Changed in 2021
June 7, 2026 · 11 min read
How to Validate EU VAT Numbers with VIES API (and Why Most Teams Use a Wrapper)
June 8, 2026 · 12 min read
EU VAT Invoice Requirements for SaaS: The 16-Field Article 226 Checklist
June 9, 2026 · 9 min read
Bulk VAT Validation: Complete Developer Guide for ERP Imports and Re-validation Jobs
June 10, 2026 · 11 min read
WooCommerce EU VAT Validation: Beyond Format Checks with Real VIES Validation
June 11, 2026 · 10 min read
Python Async VAT Validation with httpx and asyncio (FastAPI & Django Guide)
June 12, 2026 · 9 min read
VAT API Node.js: Quick Start Guide for Backend Developers
June 12, 2026 · 7 min read
VAT API Python: Integrating Tax ID Validation with Django & Flask
June 12, 2026 · 10 min read
React VAT Validation: Real-time Checks for B2B Forms
June 12, 2026 · 11 min read
Tax ID Validation API: Global Coverage Beyond EU VIES
June 12, 2026 · 9 min read
VIES API Integration: A RESTful Guide for Developers
June 12, 2026 · 10 min read
Validate VAT Number API: How to Verify EU, UK, AU, CH, NO Tax IDs
June 12, 2026 · 8 min read
Stripe EU VAT: Seamless Validation for Your SaaS Checkout
June 12, 2026 · 12 min read
Mastering EU VAT Compliance with a Real-time Validation API
June 12, 2026 · 11 min read
VAT & Tax ID Validation API for Developers
June 12, 2026 · 9 min read
VAT API PHP: Tax ID Validation for Laravel & Symfony
June 12, 2026 · 10 min read
UK VAT Validation API: Post-Brexit Tax ID Checks for Developers
June 12, 2026 · 8 min read
Australian ABN Validation API: GST Number Verification Guide
June 12, 2026 · 7 min read
VAT API Go (Golang): High-Performance Tax ID Validation
June 12, 2026 · 9 min read
VAT API Java: Spring Boot Integration for Tax ID Validation
June 12, 2026 · 10 min read
Norway VAT Number (MVA) Validation API: Developer Guide
June 12, 2026 · 6 min read
Switzerland UID Validation API: Tax ID Checks for Swiss Businesses
June 12, 2026 · 6 min read
Developer Guides: Integrating VAT Validation API into Your Stack
June 12, 2026 · 5 min read
E-commerce VAT Validation: Automate Tax ID Checks at Checkout
June 12, 2026 · 9 min read
VAT API Ruby on Rails: Tax ID Validation for E-commerce
June 12, 2026 · 8 min read
VAT API .NET: ASP.NET Core Integration Guide
June 12, 2026 · 9 min read
VAT API Error Handling: Timeouts, Fallbacks & Retry Strategies
June 12, 2026 · 9 min read
How to Test Your VAT API Integration: Mocking & Staging Guide
June 12, 2026 · 8 min read
SaaS Billing VAT Compliance: Automate B2B Tax ID Verification
June 12, 2026 · 10 min read
Marketplace Seller VAT Verification: Onboarding Compliance Guide
June 12, 2026 · 8 min read
India GSTIN Validation API: GST Number Verification for Developers
June 12, 2026 · 6 min read
Canadian Business Number (BN) API: Tax ID Validation Guide
June 12, 2026 · 6 min read
B2B Invoice VAT Automation: Number Validation for ERP Systems
June 12, 2026 · 9 min read