Scaling your business abroad Global tax compliance in 2026 can feel complex, but it doesn’t have to slow down your growth! Join us for a 30-minute webinar on March 17th at 11:30AM CET ...

Missed our webinar on scaling your business abroad?

Learn how to manage VAT/GST & build a scalable, audit-ready tax setup. 

Remote seller sales tax guide 2026: Nexus and calculation Just because you are a remote seller doesn't mean you are off the hook when it comes to taxes. Learn how to calculate US sales tax as a remote seller!

Are you a remote seller?

In 2026, those rules are broader, more data-driven, and more actively enforced across US states.

Our latest guide breaks it all down 👇

📣 Big announcement: Quaderno is now featured on the #WooCommerce Marketplace!

Our plugin simplifies global tax compliance with automated calculations, reporting, plus registration & filing services.

Check it out: https://woocommerce.com/products/quaderno/

Prepare your business for 2026 EU tax changes Several European countries are implementing new tax rates in 2026, and most of them come into effect on January 1. Four tools to automate local tax rates.

🚀 Excited to be featured in the @woocommerce.com blog!

They break down the 2026 EU VAT changes and how merchants can automate tax, invoicing & reporting to stay compliant across borders.

Huge thanks to the WooCommerce team! 

🔗 Full article:

How to calculate sales tax in Excel Learn how to calculate sales tax in Excel using formulas and examples, avoid common errors, and automate your tax workflows for accuracy and compliance.

Managing sales tax in Excel? You’re not alone, but it might be time to level up.

Our guide explains how to calculate tax & how tools like Quaderno make life easier.

Read it here👇

How to calculate sales tax in Excel Learn how to calculate sales tax in Excel using formulas and examples, avoid common errors, and automate your tax workflows for accuracy and compliance.

Sales tax in Excel sounds easy… until you’re juggling multiple rates, exemptions & regions 😵‍💫

Here’s how to do it right and why automating it might be your best move.
👇

Still calculating sales tax manually in Excel? 😬

Our latest guide breaks down the formulas you need and why automation can save you from costly errors.

⬇️

What is Verifactu? Explained in English Learn about Spain's Verfactu e-reporting laws, how it relates to e-invoicing, and how businesses can comply.

Spain is entering a new era of invoicing. 🇪🇸

Verifactu becomes mandatory in 2026. 

Our guide (in English) covers what it means, who it affects, and how to stay compliant:👉

❌ Canva, Word, Excel can’t generate Verifactu-compliant invoices in Spain. You need certified invoicing software.

Our English webinar 👉 watch.getcontrast.io/register/quaderno-verifa...

What is Verifactu? Explained in English Learn about Spain's Verfactu e-reporting laws, how it relates to e-invoicing, and how businesses can comply.

What is Verifactu, and how does it affect your business in Spain?

Our latest guide breaks down:
✅ How it works
✅ Deadlines
✅ How to stay compliant automatically

📘 Read more here:

What is Verifactu? Explained in English Learn about Spain's Verfactu e-reporting laws, how it relates to e-invoicing, and how businesses can comply.

🇪🇸 Spain’s new invoicing law is here: Verifactu.

Mandatory by 2026, it changes how every business issues invoices, from freelancers to large companies.

Here’s what you need to know (in English)👇

New York City 2025 Sales Tax Guide and Calculator Up to date New York City sales tax rates and business information for 2025. Learn how to register, collect taxes, do returns, file, and more.

Doing business in NYC? Sales tax rates vary, digital goods may be taxable, and economic nexus matters.

Our guide helps you navigate the complexity so you can focus on growing your business 👇

La Ley Antifraude: cómo afecta a los programas de facturación Aprende cómo la Ley Antifraude afecta a los programas de gestión y de facturación que usas en tu negocio.

📢 La Ley Antifraude cambia las reglas del juego para los programas de facturación en España.

Se prohíben facturas modificables y exigen sistemas inalterables y trazables.
⬇️

New York City 2025 Sales Tax Guide and Calculator Up to date New York City sales tax rates and business information for 2025. Learn how to register, collect taxes, do returns, file, and more.

NYC sales tax isn’t simple: rates vary, digital goods may be taxable, and economic nexus matters.

Our guide helps you navigate the complexity so you can focus on growing your business ⬇️

La Ley Antifraude: cómo afecta a los programas de facturación Aprende cómo la Ley Antifraude afecta a los programas de gestión y de facturación que usas en tu negocio.

¿Tu software de facturación permite modificar facturas emitidas? 
Con la Ley Antifraude, eso ya te puede costar hasta 50.000€.

Entérate de los nuevos requisitos técnicos ⬇️

New York City 2025 Sales Tax Guide and Calculator Up to date New York City sales tax rates and business information for 2025. Learn how to register, collect taxes, do returns, file, and more.

📍 Selling in NYC? Don’t let 8.88% sales tax catch you off guard.

Our guide breaks down rates, nexus, and taxable goods for businesses of all sizes 👇

La Ley Antifraude: cómo afecta a los programas de facturación Aprende cómo la Ley Antifraude afecta a los programas de gestión y de facturación que usas en tu negocio.

🔍 La Ley Antifraude 11/2021 llega fuerte para la facturación: programas que permitan borrar facturas ya no sirven.

Infórmate aquí👇

The NOMAD states: Which states don't have sales tax? Discover which U.S. states don’t have sales tax. Learn about the NOMAD states, their tax structures, and how to stay compliant when doing business there.

No sales tax sounds great. What’s the catch?

The NOMAD states (New Hampshire, Oregon, Montana, Alaska & Delaware) don’t charge statewide sales tax.

Find out what it means for your business👇

Selling online in Spain? Quaderno integrates with popular platforms & keeps invoices Verifactu-compliant.

Webinar for English speakers 👉watch.getcontrast.io/register/quaderno-verifa...

The NOMAD states: Which states don't have sales tax? Discover which U.S. states don’t have sales tax. Learn about the NOMAD states, their tax structures, and how to stay compliant when doing business there.

No sales tax in 5 US states? Yep, it’s true.

But that doesn’t mean you can skip compliance entirely.

Learn about the NOMAD states and how they handle taxes differently 👇

📣 En nuestro episodio de Quaderno Customer Stories, Lucía Fernández de Liencres Coll, de The Yoga Class, cuenta cómo convirtió una pasión en un negocio y cómo usa Quaderno para automatizar la facturación de sus suscripciones.

📺 Mira la entrevista 👉: https://youtu.be/_K9sheZDsfk?si=9XoAr1LwAMOEHVg5

The NOMAD states: Which states don't have sales tax? Discover which U.S. states don’t have sales tax. Learn about the NOMAD states, their tax structures, and how to stay compliant when doing business there.

Not every US state has sales tax!

The NOMAD states (New Hampshire, Oregon, Montana, Alaska & Delaware) skip statewide sales tax altogether.

Here’s what that means for your business
👇

¿Cómo funciona Verifactu en la práctica? 
En nuestro webinar mostramos cómo funciona el proceso.

🎥 Míralo:watch.getcontrast.io/register/quaderno-es-pre...

E-Show Madrid 2025 fue un éxito🚀
Conversamos con cientos de profesionales del sector e-commerce que buscan una solución para el cumplimiento de Verifactu.

Si te interesa saber cómo nuestra solución puede integrarse sin problemas pide una llamada: https://savvycal.com/quaderno-experts/verifactu?d=30

Nuestro equipo se reunió en Las Palmas para uno de los offsites más dinámicos y estratégicos hasta ahora. 💡

Entre sesiones de teambuilding, buena comida y muchas risas, volvemos con nuevas ideas, más energía y un equipo aún más unido. 💪

Sales tax by state: Rates and state-by-state guides Stay compliant with sales tax rules across the US. Learn about state & local rates, and how these impact your compliance.

Not every US state has sales tax.
But if you sell online, you still need to know where and how much you should collect.

Our state-by-state guide has the answers
👉

📢 Verifactu ya está aquí y Quaderno está 100% listo: automatiza facturas, envía reportes electrónicos y cumple con Hacienda. 

🎥 Aprende más en el webinar: watch.getcontrast.io/register/quaderno-es-ver...

Sales tax by state: Rates and state-by-state guides Stay compliant with sales tax rules across the US. Learn about state & local rates, and how these impact your compliance.

Some US states say yes to sales tax. Others say no.

And then there are thresholds, exemptions & rules that make it tricky for eCommerce & SaaS businesses.

We did the homework for you
👉

Verifactu for Non-Spanish Speakers Are you a foreign business owner in Spain but don't understand what Verifactu means for your business? You're not alone. Many international entrepreneurs ...

⏰ Have a businesss in Spain? Verifactu will be mandatory in 2026.

To learn more join our English webinar: Oct 23 -11:00 CEST.

Register⬇️

Sales tax by state: Rates and state-by-state guides Stay compliant with sales tax rules across the US. Learn about state & local rates, and how these impact your compliance.

🗺️ Does every US state have sales tax?

No — but 45 of them do (plus local add-ons). Learn where, how much, and what it means for your business 👉