It has already paid $10 billion to settle previous lawsuits.
This offer which will be presented to a court in Missouri is to be paid out over 21 years to about 65,000 people.
The deal would cover all future claims for Roundup-related compensation.
The company has steadfastly maintained Roundup is safe when used as directed. The lawsuits claim it may cause non-Hodgkin lymphoma which is a form of blood cancer.