¶¶Òõ¶ÌÊÓÆµ

Purchase Agreement Addendum Template for England and Wales

Create a bespoke document in minutes,  or upload and review your own.

4.6 / 5
4.8 / 5

Let's create your Purchase Agreement Addendum

Thank you! Your submission has been received!
Oops! Something went wrong while submitting the form.

Get your first 2 documents free

Your data doesn't train Genie's AI

You keep IP ownership of your information

Key Requirements PROMPT example:

Purchase Agreement Addendum Template

I need a Purchase Agreement Addendum Template to modify the delivery schedule and increase the purchase price by 15% for our existing manufacturing equipment contract, with the changes to take effect from March 1, 2025.

Document background
The Purchase Agreement Addendum Template is designed for situations where parties need to modify terms of an existing purchase agreement while maintaining its core structure. Common uses include updating pricing, delivery schedules, specifications, or other material terms. This template, governed by English and Welsh law, ensures modifications comply with UK commercial legislation and maintains consistency with the original agreement. It provides a structured approach to documenting changes while preserving the legal enforceability of the underlying contract.
Suggested Sections

1. Parties: Identification of parties to the addendum and original agreement

2. Background: Reference to original agreement and reason for addendum

3. Definitions: Key terms used in the addendum, including reference to original agreement definitions

4. Amendments: Specific changes to the original agreement

5. Effect on Original Agreement: Statement confirming all other terms remain in force

6. Execution: Signature blocks and execution requirements

Optional Sections

1. Additional Terms: New terms being added to original agreement - use when introducing new provisions not covered in original agreement

2. Price Adjustments: Changes to pricing or payment terms - use when modifying financial terms

3. Timeline Modifications: Changes to delivery or performance schedules - use when adjusting timeframes

4. Regulatory Compliance: Additional compliance requirements - use when addressing new regulatory requirements

Suggested Schedules

1. Schedule of Amended Clauses: Detailed list of specific clauses being modified

2. Updated Price Lists: New pricing schedules if prices are being modified

3. Revised Specifications: Updated product or service specifications if being modified

4. Amended Delivery Schedule: Modified delivery or performance timelines

Authors

Alex Denne

Head of Growth (Open Source Law) @ ¶¶Òõ¶ÌÊÓÆµ | 3 x UCL-Certified in Contract Law & Drafting | 4+ Years Managing 1M+ Legal Documents | Serial Founder & Legal AI Author

Relevant legal definitions















Clauses


















Industries

Sale of Goods Act 1979: Primary legislation governing contracts for the sale of goods, defining rights and obligations of buyers and sellers, including quality standards and fitness for purpose requirements

Supply of Goods and Services Act 1982: Legislation applicable when services are included alongside goods, establishing standards for service provision

Consumer Rights Act 2015: Key legislation for B2C transactions, containing consumer protection provisions and defining quality rights and remedies

Unfair Contract Terms Act 1977: Controls the use of exclusion clauses in contracts and establishes reasonableness test for contract terms

Law of Property (Miscellaneous Provisions) Act 1989: Legislation governing contracts involving real property and requirements for contracts to be in writing

Contract Formation Principles: Common law requirements including offer, acceptance, consideration, and intention to create legal relations

Doctrine of Incorporation: Common law principles governing how addendums relate to main agreements and requirements for valid contract variation

UK GDPR: Data protection regulations that must be considered if personal data is processed as part of the purchase agreement

Financial Services and Markets Act 2000: Regulatory framework applicable when purchase involves regulated financial products

Competition Act 1998: Legislation ensuring compliance with competition law in purchase agreements

Teams

Employer, Employee, Start Date, Job Title, Department, Location, Probationary Period, Notice Period, Salary, Overtime, Vacation Pay, Statutory Holidays, Benefits, Bonus, Expenses, Working Hours, Rest Breaks,  Leaves of Absence, Confidentiality, Intellectual Property, Non-Solicitation, Non-Competition, Code of Conduct, Termination,  Severance Pay, Governing Law, Entire Agreemen

Find the exact document you need

Addendum To Note

A legal document under English and Welsh law that modifies or amends the terms of an existing promissory note.

find out more

Purchase Agreement Addendum

A template for modifying existing purchase agreements under English and Welsh law, ensuring legally compliant amendments to commercial transactions.

find out more

Amendment To Sales Contract

A legal document under English and Welsh law used to modify existing sales agreements while maintaining original contract validity.

find out more

Addendum To Offer Letter

A legal document under English and Welsh law used to amend or supplement an existing employment offer letter.

find out more

Partnership Agreement Amendment

A legal template for modifying existing partnership agreements under English and Welsh law.

find out more

Loan Agreement Amendment

Template for modifying existing loan agreements under English and Welsh law, enabling changes to key loan terms while maintaining regulatory compliance.

find out more

Construction Addendum

A legal document under English and Welsh law used to modify existing construction contracts and document agreed changes.

find out more

Employment Contract Amendment

An English and Welsh law template for documenting amendments to existing employment contracts.

find out more

Contract Addendum

A template for modifying existing contracts under English and Welsh law, enabling clear documentation of contractual changes.

find out more

Separation Agreement Amendment

An English and Welsh law-governed template for modifying existing separation agreements between separated spouses.

find out more

Lease Addendum

A legal document under English and Welsh law used to modify existing lease agreements while maintaining other original terms.

find out more

First Amendment To Lease

A legal document under English and Welsh law that modifies specific terms of an existing lease while maintaining other original provisions.

find out more

Trust Addendum Form

A U.S. legal document used to modify an existing trust agreement without revoking the original trust.

find out more

Sublease Amendment

A U.S. legal document that modifies the terms of an existing sublease agreement while maintaining compliance with federal and state property laws.

find out more

Restated Operating Agreement

A US-governed document that consolidates and updates an LLC's original operating agreement and subsequent amendments into a single, comprehensive agreement.

find out more

Residential Lease Extension Amendment

A U.S. legal document that extends the term of an existing residential lease agreement while maintaining other original terms.

find out more

Real Estate Purchase Contract Addendum

A U.S. legal document that modifies terms in an existing real estate purchase agreement while maintaining compliance with applicable laws.

find out more

Real Estate Purchase Agreement Addendum

A U.S. legal document that modifies terms in an existing real estate purchase agreement while maintaining compliance with federal and state regulations.

find out more

Real Estate Purchase Addendum

A U.S. legal document that modifies existing terms in a real estate purchase agreement while maintaining other original contract provisions.

find out more

Real Estate Price Change Addendum

A U.S. legal document that modifies the purchase price in an existing real estate contract while maintaining other original terms.

find out more

Real Estate Contract Addendum

A U.S. legal document that modifies or adds terms to an existing real estate contract, subject to federal and state real estate laws.

find out more

Real Estate Addendum Form

A U.S. legal document that modifies or supplements an existing real estate purchase agreement while maintaining compliance with federal and state regulations.

find out more

Purchase Contract Addendum Form

A U.S. legal document used to modify existing purchase agreements while maintaining compliance with federal and state contract laws.

find out more

Pet Addendum For Lease

A U.S. legal document that supplements a residential lease agreement by establishing terms and conditions for keeping pets on rental property.

find out more

Operating Agreement Amendment

A U.S. legal document that modifies an existing LLC Operating Agreement, requiring member approval and state law compliance.

find out more

Lease Renewal Addendum

A U.S. legal document that extends an existing lease agreement, updating terms while maintaining original provisions.

find out more

Lease Modification Agreement

A U.S. legal document that modifies specific terms of an existing lease agreement while keeping other original terms intact.

find out more

Lease Extension Addendum

A U.S. legal document that extends an existing lease agreement's duration while maintaining or modifying its original terms.

find out more

Lease Amendment Name Change

A U.S. legal document that modifies an existing lease agreement to reflect a tenant's name change while maintaining all other original lease terms.

find out more

Lease Amendment Landlord Name Change

A U.S. legal document that modifies an existing lease agreement to reflect a change in landlord identity while maintaining all other original lease terms.

find out more

Lease Amendment And Extension Agreement

A U.S. legal document that modifies existing lease terms and extends the lease period between landlord and tenant.

find out more

Lease Amendment

A U.S. legal document that modifies terms of an existing lease agreement while maintaining the validity of other original lease provisions.

find out more

Lease Addendum To Extend Term

A U.S. legal document that extends an existing lease agreement's duration while maintaining or modifying its original terms.

find out more

Lease Addendum Remove Tenant

A U.S. legal document that modifies an existing lease agreement to remove one or more tenants while maintaining the lease's validity for remaining tenants.

find out more

Lease Addendum For Rent Increase

A U.S. legal document that modifies an existing lease agreement to implement a rent increase while maintaining all other original lease terms.

find out more

Extension Addendum To Contract

A U.S. legal document that extends the duration of an existing contract while maintaining its original terms and conditions.

find out more

Contract Modification Form

A U.S. legal document used to formally modify terms of an existing contract while maintaining other original provisions.

find out more

Contract Amendment Letter

A U.S.-compliant formal document that modifies specific terms of an existing contract while maintaining other original provisions.

find out more

Contract Amendment

A U.S.-governed legal document that modifies specific terms of an existing contract while maintaining the validity of the original agreement.

find out more

Contract Addendum Letter

A U.S. legal document that modifies specific terms of an existing contract while maintaining the validity of the original agreement.

find out more

Construction Contract Amendment

A U.S.-compliant legal document that modifies an existing construction contract's terms, including changes to scope, timeline, or pricing.

find out more

Company Name Change Contract Amendment

A U.S. legal document that amends existing contracts to reflect a company's new legal name while maintaining all other contractual terms and conditions.

find out more

Commercial Lease Amendment Form

A U.S. legal document used to modify existing commercial lease agreements while maintaining other original terms intact.

find out more

Amendment To Tenancy Agreement

A U.S. legal document that modifies specific terms of an existing tenancy agreement while maintaining other original provisions.

find out more

Amendment To Service Agreement

A U.S.-governed legal document that modifies the terms and conditions of an existing service agreement while maintaining other original terms.

find out more

Amendment To Separation Agreement

A U.S. legal document that modifies specific terms of an existing separation agreement between an employer and former employee while keeping other original provisions intact.

find out more

Amendment To Real Estate Contract

A U.S. legal document that modifies an existing real estate contract while maintaining compliance with federal and state laws.

find out more

Amendment To Purchase Contract

A U.S. legal document that modifies specific terms of an existing purchase agreement while maintaining other original contract provisions.

find out more

Amendment To Purchase Agreement

A U.S. legal document that modifies specific terms of an existing purchase agreement while maintaining the validity of the original contract.

find out more

Amendment To Offer To Purchase

A U.S. legal document that modifies specific terms of an original real estate purchase offer while maintaining other existing terms.

find out more

Amendment To Listing Agreement

A U.S. legal document that modifies an existing real estate listing agreement between a property owner and real estate agent/broker.

find out more

Amendment To Joint Venture Agreement

A U.S.-governed legal document that modifies specific terms or conditions of an existing joint venture agreement while maintaining its core structure.

find out more

Amendment To Independent Contractor Agreement

A U.S. legal document that modifies an existing Independent Contractor Agreement, updating specific terms while maintaining the original agreement's validity.

find out more

Amendment To Extend Term Of Agreement

A U.S. legal document that extends the duration of an existing agreement while maintaining other original terms and conditions.

find out more

Amendment To Extend Lease Agreement

A U.S. legal document that extends the term of an existing lease agreement while maintaining other original terms and conditions.

find out more

Amendment To Employment Contract

A U.S. legal document that modifies specific terms of an existing employment contract while maintaining other original terms.

find out more

Amendment To Contract Of Sale

A U.S. legal document that modifies specific terms of an existing sales contract while maintaining the validity of the original agreement.

find out more

Amendment To Contract (Real Estate)

A U.S. legal document that modifies terms of an existing real estate contract while maintaining the validity of other original provisions.

find out more

Amendment To Consulting Agreement

A U.S. legal document that modifies specific terms of an existing consulting agreement while keeping other provisions intact.

find out more

Amendment To Confidentiality Agreement

A U.S.-governed legal document that modifies an existing Confidentiality Agreement to update its terms or scope while maintaining its core protections.

find out more

Amendment To Commercial Lease Agreement

A U.S. legal document that modifies specific terms of an existing commercial lease agreement while maintaining other original provisions.

find out more

Amendment To Asset Purchase Agreement

A U.S. legal document that modifies specific terms of an existing Asset Purchase Agreement while maintaining other original terms.

find out more

Amendment To Agreement Of Purchase And Sale

A U.S. legal document that modifies terms in an existing property purchase and sale agreement.

find out more

Amendment Real Estate Purchase Contract

A U.S. legal document that modifies terms in an existing real estate purchase agreement while maintaining other original contract provisions.

find out more

Amendment For Contract

A U.S.-compliant legal document that modifies specific terms of an existing contract while maintaining the original agreement's validity.

find out more

Amended Settlement Agreement

A U.S. legal document that modifies an existing settlement agreement while preserving unchanged terms and maintaining compliance with federal and state laws.

find out more

Amended Loan Agreement

A U.S.-governed document that modifies terms of an existing loan agreement while maintaining other original provisions.

find out more

Amended And Restated Shareholders Agreement

A U.S. legal document that updates and replaces an existing shareholders agreement, consolidating all terms governing shareholder relationships and company management into a single agreement.

find out more

Amended And Restated Operating Agreement

A U.S. legal document that updates and replaces an existing LLC Operating Agreement, consolidating all previous amendments and current terms into one comprehensive agreement.

find out more

Amended And Restated Loan Agreement

A U.S. legal document that modifies and consolidates an existing loan agreement with its amendments into a single, updated agreement.

find out more

Amended And Restated Lease

A U.S. legal document that consolidates and updates an existing lease agreement and its amendments into a single, comprehensive contract, subject to federal, state, and local property laws.

find out more

Agreement To Amend

A U.S. legal document used to formally modify terms of an existing contract while maintaining its core validity.

find out more

Agreement Amendment Letter

A U.S.-compliant formal document that modifies the terms of an existing agreement while preserving other original contract terms.

find out more

Addendum To Trust Agreement

A U.S. legal document that modifies an existing trust agreement while maintaining its core structure and validity.

find out more

Addendum To Sales Contract Extension Of Closing

A U.S. legal document that modifies an existing real estate sales contract to extend the closing date while maintaining other original terms.

find out more

Addendum To Sales Contract

A U.S. legal document that modifies an existing sales contract while maintaining other original terms under American contract law.

find out more

Addendum To Real Estate Purchase And Sale Agreement

A U.S. legal document that modifies or adds terms to an existing real estate purchase and sale agreement.

find out more

Addendum To Purchase And Sale Agreement

A U.S. legal document that modifies an existing real estate purchase agreement while maintaining the original contract's validity.

find out more

Addendum To Purchase Agreement

A U.S. legal document that modifies or supplements an existing purchase agreement while maintaining its core terms.

find out more

Addendum To Operating Agreement

A U.S. legal document that modifies an existing LLC Operating Agreement by adding or changing specific terms while keeping the original agreement intact.

find out more

Addendum To Lease Agreement

A U.S. legal document that modifies or adds terms to an existing lease agreement while maintaining the validity of the original contract.

find out more

Addendum To Employment Contract

A legal document used in the United States to modify an existing employment agreement while maintaining compliance with federal and state employment laws.

find out more

Addendum To Contract For Sale And Purchase

A U.S. legal document that modifies or amends an existing sales contract while maintaining the validity of the original agreement.

find out more

Addendum To Contract For Residential Sale And Purchase

A U.S. legal document that modifies or adds terms to an existing residential property purchase agreement.

find out more

Addendum To Contract

A U.S. legal document that modifies an existing contract while maintaining the original agreement's core structure.

find out more

Addendum To Agreement Of Sale

A U.S. legal document that modifies or amends an existing real estate purchase agreement while maintaining the validity of the original contract.

find out more

Addendum To Agreement

A U.S. legal document that modifies an existing agreement while maintaining the validity of unchanged terms.

find out more

Addendum Rental Agreement Additional Tenant

A U.S. legal document that modifies an existing rental agreement to add new tenant(s) while maintaining original lease terms and establishing mutual obligations.

find out more

Addendum Apartment Lease

A U.S. legal document that modifies an existing apartment lease agreement while maintaining compliance with federal, state, and local housing laws.

find out more

Addendum Amendment To Purchase And Sale Agreement

A U.S. legal document that modifies an existing Purchase and Sale Agreement while maintaining other original terms.

find out more

Download our whitepaper on the future of AI in Legal

By providing your email address you are consenting to our Privacy Notice.
Thank you for downloading our whitepaper. This should arrive in your inbox shortly. In the meantime, why not jump straight to a section that interests you here: /our-research
Oops! Something went wrong while submitting the form.

³Ò±ð²Ô¾±±ð’s Security Promise

Genie is the safest place to draft. Here’s how we prioritise your privacy and security.

Your documents are private:

We do not train on your data; ³Ò±ð²Ô¾±±ð’s AI improves independently

All data stored on Genie is private to your organisation

Your documents are protected:

Your documents are protected by ultra-secure 256-bit encryption

Our bank-grade security infrastructure undergoes regular external audits

We are ISO27001 certified, so your data is secure

Organizational security

You retain IP ownership of your documents

You have full control over your data and who gets to see it

Innovation in privacy:

Genie partnered with the Computational Privacy Department at Imperial College London

Together, we ran a £1 million research project on privacy and anonymity in legal contracts

Want to know more?

Visit our for more details and real-time security updates.