Skip to content

What is the Difference Between an Addendum and an Amendment Deed in England? 

Table of Contents

Your business may need to change the content of a contract. Two common ways of doing so are through an amendment deed or contract addendum. Both achieve the same goal but apply in different circumstances. This article will explain the differences between a contract addendum and an amendment deed to ensure your business uses the correct method of contract adjustment.

Front page of publication
UK Startup Manual

LegalVision’s Startup Manual is essential reading material for any startup founder looking to launch and grow a successful startup.

Download Now

Why Amend the Wording of a Contract?

It is uncommon for parties to agree to a deal and then wish to amend the wording of the original contract. However, there are various uncontroversial reasons why this may be necessary. For example, you might need to:

  • correct errors or serious spelling mistakes;
  • change a date or figure due to the parties changing their minds; or
  • add further detail that the parties agree to after signing the contract.

Both an amendment deed or contract addendum can amend a contract. However, they do so in different ways and suit different situations. Let us explore this further below.

What is a Contract Addendum?

An addendum is an additional document that adds wording to the original agreement. Its typical use is to add something to the original document rather than correcting or refining the original language.

For example, you can use an addendum within company car rental agreements. The hirer could have a ‘standard’ contract confirming regular fees and legal obligations and then have a separate addendum document that notes the company name alongside the planned length of the hire period. This is not correcting past errors within the written contract but adding additional information to it through an addendum.

Continue reading this article below the form
Need legal advice?
Call 0808 196 8584 for urgent assistance.
Otherwise, complete this form and we will contact you within one business day.

What is an Amendment Deed?

An amendment deed alters the content of the existing agreement. Therefore, an amendment deed aims to clarify and correct the original wording rather than introducing additional terms.

So, let us continue the company car rental example. Suppose your business wishes to hire a Mercedes as a company car for 12 months. The parties fail to notice that the written agreement records a Mazda as your company car for three months. On the eve of the vehicle’s delivery, you see the error, and the hirer agrees to amend it.

The easiest way of amending the contract would be a quick amendment confirming that you should read references to ‘Mazda’ as ‘Mercedes’ and mentions of ‘3 months’ as ’12 months’. This is simpler and quicker than trying to add content through an addendum and is the legal equivalent of striking the incorrect words and writing the correct word next to them.

Change of Agreement Example

Let us consider one last example. You sign a contract with another company to purchase 20 laptops for £400 each. However, after signing, you speak with the other company further and learn that they will sell you 30 laptops for £300 each. You both agree this is a better deal.

The best method of amending the contract would be through an amendment deed. This is because the amendment deed can quick replace references to ’20’ as ’30’ and statements of ‘£400’ as ‘£300’. The parties do not wish to add brand new information but clarify the existing contract.

The situation may be different if the parties require over a dozen complex changes to the contract or if supplementary information that was not in the original written agreement needs to be added. In this case, a contract addendum may well provide the additional detail and new terms to make the deal accurate on paper.

Key Takeaways

In summary, contract addendums and amendment deeds are different ways of achieving similar goals. A simple explanation of the difference between them would be that an amendment deed could change the purchase price between a contract. On the other hand, you require an addendum to add a purchase price where none exists within the original contract. An addendum, therefore, adds additional content to contracts, while an amendment deed simply amends the content of the existing document.

If you need help with contract amendment by way of an addendum or amendment deed, our experienced contract lawyers can assist as part of our LegalVision membership. For a low monthly fee, you will have unlimited access to lawyers to answer your questions and draft and review your documents. Call us today on 0808 196 8584 or visit our membership page.

Frequently Asked Questions

Are there other ways of changing a contract?

Yes. One option is an amendment and restatement deed, while another is simply to terminate the first contract and replace it with a new one.

Are contract amendments common?

No. The main point of a contract is that its content is fixed once signed and provides the signatories with certainty. Thus, amending a written agreement is usually done to fix errors with the initial wording or reflect additional information agreed upon by the parties after signature.

Register for our free webinars

Protecting and Enforcing Your Brand

Online
Protect your brand from misuse and infringement. Register for our free webinar.
Register Now

Deal Structures 101: Understanding Equity, ASAs and Convertible Notes

Online
As a startup founder, understand your capital raising options. Register for our free webinar today.
Register Now

Common Legal Pitfalls for SaaS and Online Businesses

Online
Protect your online or SaaS business from common legal pitfalls. Register for our free webinar.
Register Now

GDPR Compliance Essentials for SMEs

Online
Ensure our business is compliant with GDPR and build trust with customers. Register for our free webinar.
Register Now
See more webinars >
Thomas Sutherland

Thomas Sutherland

Read all articles by Thomas

About LegalVision

LegalVision is an innovative commercial law firm that provides businesses with affordable, unlimited and ongoing legal assistance through our membership. We operate in Australia, the United Kingdom and New Zealand.

Learn more

We’re an award-winning law firm

  • Award

    2024 Law Company of the Year Finalist - The Lawyer Awards

  • Award

    2024 Law Firm of the Year Finalist - Modern Law Private Client Awards

  • Award

    2023 Economic Innovator of the Year Finalist - The Spectator

  • Award

    2023 Law Company of the Year Finalist - The Lawyer Awards

  • Award

    2023 Future of Legal Services Innovation - Legal Innovation Awards