When Do You Need a Contract Amendment?

• When there is a change to price, deadlines, scope, or responsibilities

• When you extend the contract duration

• If the contract requires written changes only

• If changes are recurring or long-term

Without an amendment, the original contract may still apply—even if both sides believe something else is valid.

What Should a Valid Amendment Include?

• Clear reference to the original contract

• Specific changes in wording (e.g., new price or dates)

• The date the amendment takes effect

• Signatures of both parties (in the required form, if specified)

⚠️ If the original contract requires written form and signatures, a simple email confirmation is not enough!

Common Mistakes

• Only confirming changes via email or phone, despite the contract requiring written form

• Using vague language—“the price will change” is not sufficient

• Failing to update related annexes (e.g., price lists, schedules)

• Only one party signing the amendment

• Incorrect or missing effective date

💡 Lawyer’s Advice

“Changing a contract isn’t a formality. If an amendment isn’t legally valid, the original terms may still apply—even against both parties’ intentions. I always recommend drafting amendments clearly and making sure they comply with the contract’s form requirements.”