Good Faith
Also known as: Honesty in Fact
An obligation to act honestly and fairly in performing or enforcing a contract.
Plain English
Good faith means you must deal honestly and fairly with the other party. You cannot trick them, hide information, or act in a way designed to deprive them of the benefit of the deal. Good faith is often implied in contracts even if not written down. If someone acts in bad faith—say, by deliberately sabotaging performance—they can be sued for breach.
Example
A landlord agrees to rent an apartment but then deliberately fails to provide heat in winter, knowing the tenant needs it. This is bad faith because the landlord is not dealing fairly and is undermining the tenant's right to a habitable home.
Used in a sentence
“Both parties must perform their obligations in good faith and not act to frustrate the other's rights.”
Related terms
This page is a plain-English reference and is not legal advice. Laws vary by jurisdiction and change over time. For specific situations consult a licensed attorney.