The Quaderno blog

  1. Laptop with Canadian leaf with percentage symbol

    Canada's Digital Services Tax: A Comprehensive Guide to DST

    Explore Canada's Digital Services Tax (DST) with our guide. Learn what digital services revenue is taxed and who's affected.

  2. Illustration of Qoodle carrying the European flag with the text VAT

    How to get a VAT number in Europe

    Getting a VAT ID number in Europe as a foreign business is actually quite simple. We'll explain what a VAT identification number is and how to register for one!

  3. Illustration of Qoodle using a computer surrounded by 12 starts

    EU VAT For Remote Sellers

    As a remote seller of digital products to EU customers, you’re responsible for charging, collecting, filing, and paying VAT. Here's what you need to know.

  4. Illustration of Qoodle with a hat and keeping a calculator

    US Sales Tax Guide: Everything You Need to Know

    Whether you have a business in the US or you’re a remote seller with US customers, we’re here with a detailed Guide on US sales tax.

  5. Image of Qoodle resting

    How to Outsource Sales Tax Compliance for Startups

    Sales tax compliance outsourcing for business startups is the right move if you want to grow quickly & confidently. Learn how tax automation software can help.

  6. Image of Qoodle behind an invoice

    What is a tax invoice?

    Learn the essentials of a tax invoice. Understand how they ensure compliance and streamline processes in sales tax, VAT & GST systems worldwide.

  7. Image of a list of product tax codes

    What are product tax codes in the US?

    PTCs are the building block of accurate tax calculations and sales tax compliance. Learn how to navigate US tax code categories.

  8. Illustration of Qoodle giving a presentation about Tax tips

    6 Tax Tips for Small Business Owners in 2025

    Discover essential tax tips for small business owners in 2025! Stay compliant, maximize credits, automate processes, and save money with strategic planning and software tools.

  9. Illustration representing a tax engine

    What is a tax engine?

    Discover how tax engine software simplifies compliance across global tax jurisdictions, ensuring your business's efficiency and growth.

  10. Illustration representing an ecommerce

    Marketplace facilitator tax laws around the world

    Following the rise of tax laws for e-commerce platforms, we’ve created a comprehensive list of every country and jurisdiction in the world with marketplace tax laws.

  11. Illustration of Qoodle investigating some footprints

    What is a sales tax audit and how to prepare for one

    Learn what happens during a sales tax audit, why states conduct them, and how to prepare your business with proper record-keeping and compliance strategies.

  12. A store managing taxes between the user and household

    What is indirect tax? A practical guide for small businesses

    Learn how indirect taxes like sales tax, VAT, and GST affect pricing and compliance, plus tips to stay compliant worldwide and automate with Quaderno.

  13. Illustration of Qoodle sliding in and arrow growing upward

    How to maximize small business tax deductions for financial growth

    Learn how to maximize tax deductions for a small business or online business in 4 simple steps, including 10 overlooked deductions!

  14. Illustration of UK map with the UK VAT document

    UK VAT Codes: a complete guide

    Learn UK VAT codes for Standard, Reduced, Zero Rate, and Exempt products. This guide helps you comply with HMRC & optimize your tax management.

  15. Illustration of USA map showcasing the best states to form an LLC

    Best states to form an LLC and how to do it

    Discover the cheapest state to form an LLC and the best states to form an LLC for tax purposes, asset protection, and other business-friendly rules.

  16. Qoodle working on the computer

    10 Financial Tips for Online Creators

    Discover 10 essential financial tips for online creators, from managing taxes and expenses to automating invoicing and building long-term financial security.

  17. Illustration of a group of gears with the dollar symbol

    Finance Automation: How to optimize your financial workflows

    Finance automation is a game changer for online businesses, SaaS & e-commerce. Here’s how to optimize finance processes to save time and reduce error.

  18. Illustration of Qoodle with small robots notifying about some alerts

    How to remind clients to pay: payment reminder messages

    Payment reminder messages, especially when automated with the right tools, can work wonders for your cash flow, productivity, and profitability.

  19. Illustration of a laptop with an awning

    Building Your 2025 Ecommerce Growth Strategy: The Ultimate Guide

    We serve some of the best ecommerce brands on the market, and we’re sharing the 10 most successful strategies that we’ve handpicked to help your business grow too!

  20. illustration of a computer using a SaaS solution

    10+ Most Useful SaaS Tools for Businesses in 2025

    Explore useful SaaS tools and unlock the advantages for your online business, from communications to HR, marketing to taxes.

  21. Qoodle shows a diagram of how the Merchant of Record process works.

    Becoming a Merchant of Record marketplace: Why and Why Not

    Discover the pros and cons of becoming a Merchant of Record marketplace, focusing on risks, responsibilities, and alternative strategies.

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