Welcome to SellerStack. These Terms & Conditions govern your use of the SellerStack website, including our calculators, checkers, guides, downloadable resources and other content available through SellerStack.

By accessing or using this website, you agree to these Terms & Conditions. If you do not agree with them, please do not use the website.

1. About SellerStack

SellerStack is an independent online resource providing calculators, tools, educational guides and resources primarily for UK online sellers and resellers.

Our content covers topics including marketplace fees, profitability, pricing, sourcing, shipping, marketplace selling and seller-related business considerations.

SellerStack is independent and is not affiliated with, endorsed by or operated by eBay, Amazon, Vinted, Depop, Etsy, TikTok, HM Revenue & Customs (HMRC), Royal Mail or other marketplaces, government bodies, carriers or third-party services mentioned on this website, unless expressly stated otherwise.

Third-party names, trademarks and logos belong to their respective owners and are used for identification and informational purposes.

2. Informational and Educational Purposes

SellerStack content is provided for general informational and educational purposes.

Although we aim to provide useful, accurate and up-to-date information, SellerStack does not provide personalised financial, tax, accounting, legal, investment or other professional advice.

Your circumstances may differ from examples, calculations or general information presented on the website.

Where a decision may have significant financial, tax, legal or regulatory consequences, you should check current official information and, where appropriate, seek advice from a suitably qualified professional.

3. SellerStack Calculators and Checkers

SellerStack provides calculators and checkers covering areas such as:

• marketplace fees;
• profit and profit margins;
• return on investment (ROI);
• product pricing;
• break-even calculations;
• VAT;
• shipping and parcel considerations; and
• seller-related tax and business thresholds.

Results produced by these tools are estimates based on the information entered by the user together with the formulas, assumptions, rates or rules incorporated into the relevant tool.

Marketplace fees, carrier charges, tax thresholds, policies and other variables can change. Individual transactions may also be affected by circumstances including product categories, seller account types, subscriptions, promotions, exemptions and marketplace-specific rules.

SellerStack therefore does not guarantee that a calculator or checker result will exactly match an amount charged, received, reported or calculated by a marketplace, carrier, HMRC or another third party.

Where accuracy is important to a financial, tax or business decision, you should verify the relevant figures using current information from the appropriate official source.

4. Tax, HMRC and Accounting Information

SellerStack publishes general information and tools concerning topics that may include Self Assessment, trading income, digital platform reporting, VAT and other tax or accounting matters relevant to online sellers.

This information is intended to help sellers understand subjects that may be relevant to them.

It does not determine whether HMRC would regard a particular activity as trading, calculate an individual’s tax liability or replace professional tax or accounting advice.

Tax treatment depends on individual circumstances, and tax rules, thresholds and guidance can change.

For decisions concerning your own tax position, you should consult current HMRC guidance or obtain advice from a suitably qualified tax or accounting professional where appropriate.

5. Marketplace and Third-Party Information

SellerStack may publish information concerning marketplaces, software providers, shipping companies and other third-party products and services.

We aim to keep important information reasonably current, but third parties control their own:

• fees and charges;
• policies and requirements;
• features and functionality;
• subscription plans;
• promotions and trials;
• terms and conditions; and
• product or service availability.

This information can change without notice.

You should check the relevant third-party provider’s current information before making an important purchasing, selling or business decision.

6. Affiliate Links and Commercial Relationships

Some links on SellerStack may be affiliate links.

If you click an affiliate link and subsequently purchase a product, subscribe to a service or complete another qualifying action, SellerStack may receive a commission or referral payment. This will normally be at no additional cost to you.

Affiliate relationships do not determine which products or services we recommend, which resources receive a SellerStack Pick, or whether we recommend a free alternative instead.

Third-party products and services remain subject to their providers’ own terms, pricing and policies.

Please read our Affiliate Disclosure for more information about how SellerStack handles affiliate relationships and recommendations.

7. SellerStack Picks and Recommendations

Some third-party products, services or resources may receive a SellerStack Pick designation.

A SellerStack Pick represents an editorial recommendation for a particular use case. It does not mean that a product or service is appropriate for every seller, nor does it constitute a guarantee of performance, value, availability or suitability.

Recommendations may consider factors including:

• what the product or service is designed to do;
• the type of seller it may suit;
• available features and functionality;
• relevance to an online seller’s workflow;
• available pricing information;
• alternatives available to sellers; and
• where applicable, direct experience with the product or service.

Users remain responsible for deciding whether a third-party product or service is appropriate for their own requirements, circumstances and budget.

8. External Websites

SellerStack contains links to websites and services operated by third parties.

We do not control these websites and are not responsible for their content, availability, security, privacy practices, terms, pricing, products or services.

Following an external link is at your discretion.

You should review the relevant provider’s terms, privacy information and current product details before purchasing, registering or providing personal information.

9. Intellectual Property

Unless otherwise stated, original content and resources published on SellerStack—including written content, SellerStack branding, custom calculators, checker logic, graphics, templates and downloadable resources—belong to SellerStack or are used with appropriate permission.

You may use SellerStack’s publicly available content and free tools for your own personal or internal business purposes.

Without prior written permission, you may not:

• reproduce substantial portions of SellerStack content;
• republish our guides or downloadable resources;
• copy, reproduce or redistribute proprietary SellerStack calculators or calculator code;
• sell or commercially redistribute SellerStack resources;
• remove copyright, attribution or branding notices; or
• represent SellerStack content, tools or resources as your own.

Normal linking to publicly available SellerStack pages is permitted.

10. Downloadable and Free Resources

SellerStack may provide free toolkits, worksheets, checklists, templates and other downloadable resources.

Unless expressly stated otherwise, these resources are provided for the recipient’s personal or internal business use.

They may not be resold, repackaged, redistributed, uploaded elsewhere for public distribution or incorporated into another commercial product without prior written permission.

11. Email Communications

Where you choose to subscribe to SellerStack emails or request a resource by email, we may send you the requested material and, where permitted, relevant SellerStack information, tools, guides, resources and updates.

You can unsubscribe from marketing emails at any time using the unsubscribe link contained in those communications.

For information about how personal information is handled, please see our Privacy Policy.

12. Acceptable Use

You must not use SellerStack in a way that:

• violates applicable law;
• interferes with or attempts to disrupt the operation or security of the website;
• introduces malware, malicious code or other harmful technology;
• attempts to gain unauthorised access to SellerStack or related systems;
• systematically scrapes or extracts substantial amounts of SellerStack content without permission;
• copies our tools or resources for unauthorised commercial use;
• infringes SellerStack’s intellectual property rights or the rights of another party; or
• misrepresents your relationship with SellerStack.

13. Website Availability and Changes

We aim to keep SellerStack available and functioning correctly, but we cannot guarantee uninterrupted, secure or error-free access at all times.

We may modify, replace, suspend or discontinue website features, calculators, resources or content where necessary.

We may also update calculations, formulas and content as marketplace fees, regulations, technologies and SellerStack itself change.

14. No Guarantee of Results

SellerStack does not guarantee that using our calculators, guides, recommended tools, resources or information will produce a particular level of sales, profit, marketplace performance or business success.

Online selling involves commercial risk.

Results can depend on factors including sourcing decisions, selling prices, demand, competition, marketplace policies, fees, shipping costs and individual business circumstances.

You remain responsible for your own selling, purchasing and business decisions.

15. Limitation of Liability

Nothing in these Terms & Conditions excludes or limits liability where doing so would be unlawful.

To the extent permitted by law, SellerStack will not be responsible for losses arising from reliance on general information, estimates, calculator results or third-party information published on the website.

This may include losses arising from:

• inaccurate or outdated marketplace information;
• changes to third-party fees, policies or services;
• incorrect information entered into a calculator;
• differences between estimated and actual costs;
• marketplace account actions;
• third-party products or services;
• sourcing or purchasing decisions; or
• business outcomes.

You should independently verify information where accuracy is important to a financial, tax, regulatory or commercial decision.

16. Privacy and Cookies

Your use of SellerStack is also subject to our Privacy Policy and Cookie Policy.

The Privacy Policy explains how personal information is handled, while the Cookie Policy explains our use of cookies and similar technologies.

17. Changes to These Terms

We may update these Terms & Conditions when SellerStack’s services change or where legal, regulatory, technical or operational developments make an update appropriate.

The latest version will be published on this page with its most recent update date.

18. Governing Law

These Terms & Conditions are governed by the laws of England and Wales.

Nothing in these Terms is intended to restrict any mandatory rights you may have under applicable law.

19. Contact

If you have questions about these Terms & Conditions, please contact:

SellerStack
Email: info@thesellerstack.com

Privacy Policy → | Cookie Policy → | Affiliate Disclosure →