How to Write a Letter of Joint Cooperation

by Robert Lee; Updated September 26, 2017

A letter of joint cooperation is a written agreement between one or more parties. Typically, these parties are participants in a project or activity that usually requires the pooling of resources in order to accomplish a particular goal. For example, two prominent business executives may agree to work together on a plan for revitalizing downtown. Or opponents in a labor dispute may decide to end lawsuits over an issue and work cooperatively to reach an agreement. Whatever the purpose, the creation of a letter of joint cooperation follows a fairly standard format.

Step 1

Review the proposed project or activity to confirm that you fully understand what it is and what the parties are seeking to accomplish.

Step 2

Write the letter using the business letterhead of at least one of the parties.

Step 3

Open the letter by stating that it is a letter of joint cooperation. Identify the parties involved in the project. Explain the initiative and tell why the parties are coming together to support it. Write the letter in a businesslike yet upbeat tone.

Step 4

Use bullet points to list the key objectives of the cooperative effort. Also list several benefits that the parties hope to achieve from the partnership.

Step 5

Add other relevant information. Additional information might include a discussion of the timeline for completion of the objective, the responsibilities of each party and the financial contributions the parties are donating to the project.

Step 6

Obtain signatures on the letter from all the parties involved. Include participants' titles and company names if applicable.


  • Letters of joint cooperation usually are not legally binding.


  • "The Business Letter Handbook"; Michael Muckian, et al.; 1996

About the Author

Robert Lee has been an entrepreneur and writer with a background in starting small businesses since 1974. He has written for various websites and for several daily and community newspapers on a wide variety of topics, including business, the Internet economy and more. He studied English in college and earned a Bachelor of Arts in liberal arts from Governor's State University.