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How to write a contract variation?

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Whether you’re a seasoned business owner or stepping into the world of contracts for the first time, knowing how to correctly write a contract variation is paramount. This guide will walk you through the understanding of contract variations, key elements to include, steps for writing one, and crucial legal considerations.

Understanding contract variations

A clear understanding of what a variation in a contract is and its necessity is the foundation of writing a contract variation. We’ll look at both elements in the following sections.

What is a contract variation?

A variation in a contract, also known as a contract amendment or change order, is a modification agreed upon by all parties involved, altering the terms and conditions of the original contract. This can cover a wide range of changes, from changing the timeline for delivery to adjusting payment terms.

Variations in a contract are an essential aspect of contract management, ensuring that contracts remain relevant and adaptable to changing circumstances. They provide a mechanism for parties to address unforeseen scenarios and make adjustments to the original agreement.

For example, in the construction industry, contract variations may be used to accommodate design changes, unforeseen site conditions, or modifications to the scope of work. These variations help to ensure that the project can proceed smoothly and that all parties are in agreement on the changes being made.

It’s significant to highlight that a contract variation is not a new contract, but rather an extension or alteration of an existing one. It allows parties to modify specific aspects of the original agreement without invalidating the entire contract.

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How to write a contract

Why are variations in a contract necessary?

Contract variations play a crucial role in business as they offer flexibility. In our ever-changing business environment, needs can change and unforeseen circumstances can crop up. For instance, a project plan might require additional resources midway, or a delivery date might need adjusting due to unexpected supply chain disruptions.

By allowing for contract variations, businesses can respond to these changes in a structured and mutually agreed-upon manner. This flexibility ensures that contracts remain fair and equitable, even in the face of unexpected events or evolving business requirements.

Moreover, contract variations help to preserve healthy business relationships. When parties are able to address changes through a formal process, it reduces the likelihood of disputes or misunderstandings. It allows for open communication and collaboration, fostering trust and cooperation between the parties involved.

Additionally, contract variations can also provide opportunities for innovation and improvement. As parties navigate the process of modifying the contract, they may identify areas where the original agreement could be enhanced or optimized. This can lead to more efficient operations, cost savings, and increased value for all parties involved.

In conclusion, contract variations are an essential tool in contract management. They allow for flexibility, adaptability, and fairness in the face of changing circumstances. By understanding what contract variations are and why they are necessary, parties can navigate the process effectively and maintain strong business relationships.

What’s key to variations in a contract?

Being familiar with the key elements involved in a variation in a contract will assist in ensuring your modification has all necessary components to be valid and enforceable. These key elements are highlighted below:

A contract variation is a formal process that involves modifying an existing contract. It is important to follow certain guidelines to ensure that the variation is legally binding and enforceable. The key elements to consider when drafting a contract variation are as follows:

Parties involved

It’s important to clearly identify all the parties involved in the contract. This usually includes, but isn’t limited to, the supplier or service provider and the client or customer. Identifying the parties involved helps establish the relationship and responsibilities between them.

For example, in a construction contract, the parties involved may include the contractor, subcontractors, and the client. Each party has specific roles and obligations outlined in the original contract, and these roles may be modified in the contract variation.

Original contract details

Ensure to include reference to the original contract that is being varied. This can be through a simple citation of the contract date and parties involved, or by directly quoting sections that are being varied.

The original contract serves as the foundation for the contract variation. It provides the context and framework for the modifications being made. By referencing the original contract, it becomes clear which terms and conditions are being changed or added.

Details of the variation

The changes to the contract should be clearly laid out. The more transparent and precise, the better. It’s important to note which clauses are being affected, amended or removed, and to introduce any new terms or conditions.

For instance, if the original contract includes a provision for payment terms, the contract variation may specify a change in the payment schedule or the introduction of additional payment milestones. By clearly stating the details of the variation, all parties involved can have a clear understanding of the modifications being made.


To make the contract variation valid and binding, all parties should sign the document. This signifies their agreement to the modifications.

Signatures play a crucial role in contract variations as they indicate the parties’ consent to the changes being made. It is important to ensure that all parties have reviewed and understood the contract variation before signing it. This helps to avoid any misunderstandings or disputes in the future.

When preparing a contract variation, it is essential to consider the key elements discussed above. By clearly identifying the parties involved, referencing the original contract, providing detailed information about the variation, and obtaining signatures from all parties, you can ensure that the contract variation is valid, enforceable, and serves the best interests of all parties involved.

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Understanding contract variation - Oneflow

Steps to write a contract variation

Understanding the process of creating a contract variation will help ensure that you’re covering all aspects appropriately. Let’s walk through each step in detail below:

Reviewing the original contract

It’s crucial to understand the terms and conditions of the original contract completely. This will allow you to accurately identify what needs to be changed and ensure the changes remain legally compliant.

Identifying the need for variation

Determining the root of the need for a contract variation is key. It might be due to performance issues, work scope changes, external impacts, or a myriad of other reasons. Understanding this helps to ensure the contract variation addresses the need adequately.

Drafting the variation

Using the information gathered in the previous stages, draft the variation in a contract. Remember to be clear and concise to avoid ambiguities, which could lead to disputes or misunderstandings in the future.

Review and approval process

Ensure to review the drafted contract variation and have it approved by all involved parties. It’s often beneficial to include legal personnel in the review process to ensure valid and accurate contract writing.

Read also: Why you should start using a contract management platform?

What is contract variation - Oneflow

Legal considerations for contract variations

To keep contract variations legally sound, a couple of essential considerations need to be taken into account.

Ensuring legality of the variation

It’s crucial to confirm that all changes comply with relevant legislation and regulation. Also, ensure that the variation doesn’t introduce anything that would make the contract illegal or unenforceable.

Potential legal risks

Always assess potential legal risks which could possibly surface from the changes. For instance, modifying payment terms might conflict with certain laws. Thus, legal advice is often beneficial when creating contract variations to avoid unwitting mistakes.

Writing a variation in a contract is a critical skill set for conducting business smoothly and successfully. So, take the steps outlined above into consideration to ensure that your contract variations are valid, enforceable and beneficial to all parties.

Do you want to get started with contracts like these, and many more types? Click here to try Oneflow today.


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