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Addendum to Agreement

Last revision Last revision 10/02/2024
Formats FormatsWord and PDF
Size Size1 to 2 pages
Fill out the template

Last revisionLast revision: 10/02/2024

FormatsAvailable formats: Word and PDF

SizeSize: 1 to 2 pages

Fill out the template

An Addendum to Agreement is a document that allows parties to an existing contract to add terms or supplementary information.

An addendum does not replace the entire contract, it only addresses the specific part being supplemented. This document is usually used when minor additions are made to an existing contract. If the parties are making substantial add-ons, a new document altogether should be drafted.

This is a general addendum which can be used for various types of contracts, such as sales agreements, certain types of domestic contracts, commercial contracts, employment contracts, and more.

For example, suppose that two parties enter into a partnership agreement and realize the profit-sharing structure outlined needs additional information. Rather than re-writing the contract, they can make an addendum with supplementary information that better details the percentages of profits and losses.

If the parties want to amend the original contract, as opposed to making additions, they should sign an amendment to agreement instead.

An addendum is an additional document that is added to provide further details or specific information. On the other hand, an amendment alters or modifies the original document.


The parties to the existing contract must agree to the additions being made, such as new terms and conditions. Once the changes are agreed upon, they can sign this addendum to agreement. The document should then be included with the original contract.

This document allows the parties to make more than one addition if necessary.


The common law of contracts applies to this Addendum to Agreement, which may vary depending on the Province or Territory. The jurisdiction will be the Province or Territory selected by the parties. Also, depending on the type of existing contract being amended, specific laws may apply.


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