The Quaderno blog

  1. 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.

  2. Best CRM Software For Small Businesses In 2025

    The best CRM softwares for small businesses explained with pros, cons, and pricing structures. Find the CRM that’s right for you!

  3. image of an invoice transforming into bits

    E-invoicing in Spain & Digital Reporting Requirements

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

  4. Illustration of United States and a lorry following a route

    Is shipping taxable in the US?

    Unsure if shipping charges are taxable in the US? Learn the rules state by state, avoid costly mistakes, and keep your business compliant.

  5. Illustration of a book that is a calculator

    What’s my accountant talking about? Accounting jargon explained

    Lost in accounting jargon? This guide explains common terms in plain language so you can understand your accountant and stay in control.

  6. Illustration of a map of Europe surrounded by stars with small numbers

    Why you need a VAT Identification Number

    What is a VAT number, and do you need one? Learn how EU VAT IDs work, who needs them, and how to register for cross-border compliance.

  7. Illustration of a water tank being filled with rainwater

    Cash flow planning for SaaS business

    Cash flow planning is an essential part of growing a SaaS business. Download your free cash flow template.

  8. Group of stars representing the different U.S. states.

    Sales Tax for Digital Products in the US

    Sales tax on digital goods by state is tricky. Which states have sales tax? What's taxable? Learn everything here.

  9. Illustration of How to build your own business in the creator economy .png

    How to build your own business in the creator economy

    Learn what it takes to be a professional creator, on how you can build a business in the creator economy and earn a living doing what you love.

  10. Illustration of Qoodle starting a new online business

    How to Start an Online Business in 2025

    Ready to launch your online business? Learn the essential steps to start, grow, and scale successfully while staying compliant with taxes.

  11. Sales funnel

    How to set up a successful sales funnel for your online courses

    Want to grow online course sales? Build a sales funnel that converts. Learn key strategies to attract leads, boost enrollments, and increase revenue.

  12. Imagen representing the connection of Amazon with USA

    Amazon FBA sales tax guide: Compliance, nexus, and deductions

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

  13. Imagen representing the connection of Amazon with Europe

    How Amazon FBA affects your EU VAT obligations

    EU VAT obligations are complicated for Amazon FBA sellers. Learn about e-commerce VAT rules, when Amazon is responsible, and how your business can comply.

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    How To Validate VAT Numbers On Easy Digital Downloads

    EDD is one of the most popular choices for selling products on WordPress. This is how you validate a VAT Numbers on Easy Digital Downloads with Quaderno.

  15. A hook with a credit card

    What Are Chargebacks and How Businesses Can Prevent Them

    Online businesses run an increased risk of chargebacks. Learn how to minimize the effects of a chargeback on your business.

  16. Illustration of a tag with patterns

    How to price your product: A step-by-step guide

    Learn now how to price your product with success according to the experts.

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    How credit card payments work

    How credit card system works, step by step - Quaderno

  18. Illustration of How a silly landing brought us more traffic.png

    How a silly landing brought us more traffic

    How a silly landing brought us more traffic

  19. Illustration of a box and tax-related items

    Everything you need to know about GST

    A complete Goods and Services Tax (GST) guide for businesses: learn GST rules, who must register, and how to stay compliant while growing your online business.

  20. Illustration of a laptop with different elements related to an online course.

    13 Top Course Creation Software To Try in 2025

    Looking to create and sell online courses? Compare top course creation software tools to find the best fit for building and scaling your business.

  21. Illustration of Qoodle questioning what is Vies

    What is VIES?

    Learn what the EU’s VIES (VAT Information Exchange System) system is, how to validate VAT numbers, and why it’s essential for cross-border trade & compliance.