The Quaderno blog

  1. Illustrator of Qoodle flying with a leaf

    Digital Sales Tax in Canada (GST, HST, and more)

    Digital sales tax in Canada can vary from province to province. Here’s a breakdown of Canadian GST, HST, and PST for digital sales.

  2. Illustration of Qoodle starting a new online business

    How to Start an Online Business in 2025

    Want to start a business online? Learn how to start an online business, from concept to launch, and turn your idea into a successful brand!

  3. Illustration representing a cloud service with digital product icons.

    What are digital products?

    Explore the world of digital products with our comprehensive guide. Learn key definitions, selling tips, and tax compliance strategies to boost your online business.

  4. Illustration of 2 calendars

    One-Time vs. Recurring Payments: Key Differences and How to Choose

    Compare one-time and recurring payment models, their pros/cons, and actionable tips to pick the best option for your business.

  5. Illustration of all the states in United States

    Sales Tax Nexus: A Complete Guide to Types, Laws, and Compliance

    What is sales tax nexus? Learn the types (economic, physical, affiliate), how to determine nexus, and steps to comply with US sales tax laws.

  6. Imagen representing the connection of Amazon with USA

    How US sales tax works with Amazon FBA

    Learn how Amazon FBA sales tax works, including nexus laws, tax filing (1099- K), deductions, and tools to automate compliance.

  7. Step by step Sales Tax guide

    Sales Tax, VAT & GST Compliance Guide for Digital Consultants in 2025

    Master sales tax (state-by-state), VAT (EU), and GST (global) compliance for consulting services. Learn tools to automate tax collection and filings.

  8. Illustration of This is What a SaaS Income Statement Should Look Like.png

    What Should a SaaS Income Statement Look Like in 2025?

    Building the financial statements for a SaaS business is unique. Learn how to structure a SaaS income statement for your company.

  9. Illustration of How Digitalization Will Completely Transform Taxes.png

    Digitalization of Taxes: How to Improve Business Efficiency and Compliance

    Discover how tax digitalization improves business efficiency, reduces errors, and ensures compliance. Learn actionable steps to modernize your tax processes.

  10. Illustration of Why accrual accounting is necessary for SaaS and Subscriptions.png

    What is Accrual Accounting and How Is It Beneficial for SaaS?

    Accrual accounting is a necessary business practice for SaaS and subscription models, along with MRR and revenue recognition. Learn why it’s so important.

  11. Illustration of Don't use PayPal for Subscriptions.png

    Disadvantages of Using PayPal for Subscriptions

    Discover the Disadvantages of Using PayPal Recurring Payments in Your Subscription Business. Explore the challenges.

  12. Illustration of USA with an EIN number

    What is an EIN and how do you get one?

    Read about what an EIN (Employer Identification Number) is and how to get one in this easy-to-follow guide.

  13. Illustration of Create Your Profit Forecast the Easy Way.png

    Create Your Profit Forecast the Easy Way

    Not sure how to create a profit forecast? We're breaking it down for you step by step, the easy way.

  14. Illustration of a balance

    What Happens if You Don't Collect Sales Tax

    If you don’t collect sales tax when you’re liable, then your business may face these 5 consequences. Learn other forms of non-compliance, too!

  15. Image of Qoodle checking a laptop

    Top 10 Sales Tax Software for Small Businesses

    Discover the top 10 sales tax software solutions for small businesses, designed to simplify tax compliance with automation & integrations.

  16. Illustration of Qoodle questioning what is Vies

    What is VIES?

    Learn how VIES (VAT Information Exchange System) simplifies EU VAT number validation for businesses. Find out how to use VIES and its limitations.

  17. illustration of a legal document

    Marketplace Facilitator Laws: State-by-State Guide

    Learn how marketplace facilitator laws affect online sellers that use platforms like Amazon, eBay & Etsy.

  18. Illustration of Qoodle cutting a price tag

    What is reverse charge and how does it work?

    Reverse charge is a mechanism that requires buyers to report & remit taxes, instead of sellers. Understand how it works and how your business can comply.

  19. GAAP word illustrated with charts

    What are Generally Accepted Accounting Principles (GAAP)

    Generally accepted GAAP principles (GAAP) apply to all companies in the US. Learn all the GAAP rules for your business accounting.

  20. Illustration of the different elements of a supply chain

    What is a zero-rated supply?

    Zero-rated supply includes goods and services that have 0% VAT and GST. But are these actually exempt from taxes? Learn how zero rate rules work for your business.

  21. Image of Qoodle surprised with a wrong tax rate

    UK VAT error correction and when to use Form 652

    Discover when to use Form 652 for UK VAT error correction. Correct errors timely to avoid penalties, and learn the process to ensure compliance with HMRC.