The Quaderno blog

  1. Qoodle playing jenga

    9 accounting mistakes that could risk your business

    Proper accounting forms the foundation of your business. Avoid these 9 common business accounting mistakes to reduce your risk.

  2. Illustration of a hand tapping out a ramification on tax digitization

    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.

  3. Illustration of VAT, WooCommerce and Sales Tax gears

    How to set up Sales Tax/VAT if you are selling on WooCommerce

    Learn here which is the easiest solution to set up Sales Tax and VAT, if you are selling on WooCommerce. Automatic tax calculation and return-ready tax reports.

  4. Illustration of IFRS atom

    IFRS standards: What they are and how to comply

    IFRS accounting standards apply in over 166 jurisdictions around the world. As an online business, learn about the them and if you’re required to comply.

  5. Qoodle with binoculars

    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.

  6. Illustration of pouring water into three glasses of water

    How to use revenue recognition in your business

    Revenue recognition is a GAAP and IFRS accounting standard for any business that has contracts with customers, especially SaaS and subscription models.

  7. Illustration of a book and the differences between bookkeeping and accounting

    Bookkeeping vs. accounting: What are the differences?

    Is bookkeeping the same as accounting? Short answer: no! Learn the difference between them and the basics of your financial and accounting reports.

  8. Illustration of US showcasing weather icons with percentage symbols

    How the Wayfair Decision on US Sales Tax Will Affect Your Business?

    The Wayfair decision revolutionizes online sales tax in the US with new economic nexus laws. Here's what you need to know.

  9. map of Portugal

    E-invoicing in Portugal & Digital Reporting Requirements

    Portugal e-invoicing & digital reporting rules apply to all B2G businesses and some others. Learn about how electronic invoices work, when it’s required & how to comply.

  10. Illustration of Germany with e-invoicing

    Germany E-invoicing & Digital Reporting Requirements

    German e-invoicing & e-reporting rules apply to all B2B businesses. Learn about how electronic invoices work, when it’s required & how to comply.

  11. Illustration of a SaaS Income Statement with coins

    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.

  12. Illustration of an ecommerce on a mobile screen

    An Introduction to Online Marketplace VAT Rules

    Online marketplace VAT comprehensive guide. Unlock the fundamentals of how VAT applies to eCommerce and the tax compliance criteria for a seamless process.

  13. An illustration of a pile of papers

    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.

  14. Illustration of Qoodle calculating Irish VAT OSS

    What is a VAT OSS return and how to submit It as an Irish (Non-EU) business?

    Follow these steps to submit a VAT OSS Return in Ireland as a Non-EU Business and make your EU VAT returns easier.

  15. 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.

  16. 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.

  17. 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.

  18. 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.

  19. Illustration of Qoodle and a ecommerce in the USA

    How to Comply with E-Commerce Sales Tax

    Sales tax for eCommerce might seem complicated, but we'll give you the knowledge to succeed: what tax nexus is and how to comply for US Sales tax.

  20. Canadian leaf with a percentage

    Tax Information for Canadian Startups: A Complete Guide

    The tax situation for Canadian startups is confusing, especially if you have an online business that sells globally. Find what you need to know about it.

  21. Origin-based sales tax to destination-based sales tax

    Origin-based sales tax vs. Destination-based sales tax

    Origin vs. destination based sales taxes are important for online businesses to keep in mind. Here's how the different rules apply across the 50 states!