When people make an important deal, like buying a house or getting a job, they usually write everything down so both sides know exactly what they agreed on. This written agreement is the final list of promises. In Jamaica, there’s a rule called the parol evidence rule that means what’s in writing is what counts—no matter what was said before or after.
What is the Parol Evidence Rule?
Think of it like this: You and your friend agree to trade a video game for a toy and write down what each of you will give. Later, your friend says, “Oh, I also wanted some candy with the toy.” But since candy isn’t in the agreement you both wrote, you don’t have to give any candy. The parol evidence rule makes sure that only what’s in writing matters, not extra things people may have talked about.
Why is This Rule Important?
This rule keeps deals simple and fair. It stops one person from trying to change the deal later by saying, “You promised me more!” Only the things written down in the agreement count.




