Dual Software License Template for the United States

A Dual Software License agreement allows you to distribute your software under two distinct licensing models simultaneously: a commercial license for paying customers and an open source license for the developer community. This hybrid approach gives you maximum flexibility in monetizing your software while fostering open source adoption and collaboration.

When do you need this document?

You need a dual software license when you want to offer your software to both commercial enterprises willing to pay for proprietary usage rights and open source developers who contribute to your project. This is particularly valuable for SaaS companies, enterprise software providers, and startups seeking to build market presence through open source adoption while generating revenue from commercial customers. The dual license model works especially well for database software, development tools, and infrastructure components where businesses need commercial support and guarantees that open source licenses typically don't provide.

Key legal considerations

Your dual license must clearly distinguish between the rights and obligations under each license type to avoid confusion and potential infringement claims. The commercial license typically grants broader usage rights, including the ability to modify and redistribute without source code disclosure requirements, while the open source component usually follows GPL, MIT, or Apache licensing terms. You must carefully define the scope of each license, specify attribution requirements, and establish clear termination procedures. Intellectual property ownership clauses are critical, as you need to retain sufficient rights to offer both licensing options. Consider including warranty disclaimers and liability limitations that comply with both commercial software standards and open source license requirements.

Legal requirements in United States

Under the US Copyright Act, your software is automatically protected by federal copyright upon creation, giving you the exclusive right to license your work under multiple frameworks. You must ensure your dual license structure complies with the Digital Millennium Copyright Act (DMCA) if your software includes anti-circumvention measures or is distributed through online platforms. The Federal Trade Commission Act requires that your licensing terms be clearly disclosed and not misleading to consumers, particularly regarding the differences between your commercial and open source offerings. If your software includes export-controlled technology, you must comply with Export Administration Regulations when distributing to international users. Additionally, any open source components you incorporate must be compatible with your dual licensing strategy, as some copyleft licenses may restrict your ability to offer commercial alternatives.