👉Addendum vs Amendment — What’s the Difference?

💫Quantity Surveyors, we often deal with contract documents, tender clarifications, and revisions.

🚧Two common terms we see are Addendum and Amendment, and although they sound similar, they serve different purposes.

⭐️Addendum

➤ Issued before the contract is signed.
➤ Used to add, clarify, or modify tender documents (like drawings, BOQ items, or specifications).
➤ Example: “Addendum 02 – Revised ceiling layout and updated quantities.”

⭐️Amendment

➤ Issued after the contract is signed.
➤ Used to change the terms, price, or scope of an existing contract.
➤ Example: “Contract Amendment No.1 – Addition of new partition works.”

⏺Addendum:-Before contract
⏺Amendment:-After contract

📍Understanding this helps in proper documentation, variation handling, and clear communication with clients and consultants.

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