In certain circumstances it can be necessary to protect your online business from potential liabilities with a Terms and Conditions document. Though not always legally required, Terms and Conditions set the way in which your product, service or content may be used, in a legally binding way.

The Terms and Conditions typically contain copyright clauses, disclaimers, terms of sale, allow you to set governing law, list mandatory consumer protection clauses, and more.

The Terms and Conditions should at least include:

the identification of the business;
a description of the service that your site/app provides;
information on risk allocation, liability, and disclaimers;
warranty/guarantee information;
the existence of a withdrawal right;
safety information, including instructions for proper use (e.g., terms of delivery of product/service);
rights of use;
conditions of use/purchase (e.g., age requirements or location-based restrictions);
refund policy/exchange/termination of service and related information;
information related to methods of payment.

When is it mandatory to have Terms and Conditions?
Everyone from bloggers to e-commerce, SaaS, and enterprise businesses can benefit from setting Terms of Use. However, in some cases it can be mandatory, such as in the case of e-commerce, where payment data is processed.

Can I copy and use a Terms and Conditions document from another site?
Because they are essentially a legally binding agreement, it is not only important to have one in place, but also necessary to ensure that it meets legal requirements and it matches your specific business processes, model, and remains up-to-date with the various laws referenced in its contents. Copy-pasting Terms and Conditions from other sites is very risky and could result in the document being void or unenforceable.