Purchase Agreement Addendum (Canada)
This Addendum to Real Estate Purchase Agreement (the "Addendum") is entered into on [Effective Date] (the "Effective Date") by and between:
[Seller's name], [Who Seller], with a mailing address at [Address], [City], [Province] [Postal Code], Canada (the "Seller"), and
[Buyer's name], [Who Buyer], with a mailing address at [Address], [City], [Province] [Postal Code], Canada (the "Buyer"),
collectively referred to as the "Parties" and individually as a "Party".
AGREEMENT
This Addendum is an addition to the Real Estate Purchase Agreement (the "Agreement") dated [Original Agreement Date] made and entered into by the Seller and the Buyer.
ADDENDUM
- The Buyer and Seller have agreed to include additional property to be transferred from the Seller to the Buyer under the Agreement, namely real estate described below: [Property description], located at [Address], [City], [Province] [Postal Code], Canada (the "Property").
- Subject to the fulfilment of the conditions specified within this Addendum, the Seller shall transfer the Property, and the Buyer shall acquire ownership effective as of [Closing Date] (the "Closing Date").
PURCHASE PRICE
The purchase price of the Property will be CAD $[Purchase Price] (the "Purchase Price"), which the Buyer shall pay to the Seller.
PAYMENT TERMS
All payments will be made by [Payment Method]. The Buyer shall pay the Purchase Price no later than [Payment Due Date].
- The [Tax Responsibility] is responsible for paying all applicable taxes concerning the Property transfer under this Addendum, including any applicable provincial land transfer tax.
MISCELLANEOUS PROVISIONS
- Capitalized terms herein have the same meaning as used in the Agreement unless otherwise noted.
- All other provisions of the Agreement remain in full force and effect, other than any provision that conflicts with the terms of this Addendum, which shall be deemed amended appropriately to be consistent with this Addendum.
GOVERNING LAW
This Addendum shall be governed by and construed in accordance with the laws of the Province of [Governing Province] and the applicable federal laws of Canada, without regard to conflict of laws principles. Any disputes arising under this Addendum shall be resolved in the courts of the Province of [Governing Province].
IN WITNESS THEREOF, the Parties have executed this Addendum as of the date first above written.
THE BUYER
[Buyer's name]
[Address], [City], [Province] [Postal Code], Canada
THE SELLER
[Seller's name]
[Address], [City], [Province] [Postal Code], Canada
Buyer
________________
Signature
Date: ________________
Seller
________________
Signature
Date: ________________
What Is a Purchase Agreement Addendum (Canada)?
A Purchase Agreement Addendum in Canada adds agreed terms to an existing real estate purchase agreement without replacing it, governed primarily by provincial real property law.
Under Canadian contract law, any material modification to a binding contract must be agreed to by all parties and documented in writing. The Statute of Frauds, which is part of the law in all common law provinces (e.g., Ontario's Statute of Frauds, R.S.O. 1990, c. S.19), requires that contracts for the sale of land be in writing to be enforceable. This requirement extends to any amendments or addenda to the original agreement. The addendum, once signed by both parties, becomes an integral part of the original agreement and has the same legal force.
In practice, addenda are commonly used in Canadian real estate transactions to address a wide range of situations: adding additional property to the sale, adjusting the purchase price after an appraisal or inspection, extending or changing the closing date, modifying conditions or adding new conditions, addressing issues discovered during a home inspection, and clarifying or amending any term of the original agreement. Each province has its own standard forms for real estate transactions, published by the provincial real estate association (e.g., OREA forms in Ontario, BCREA forms in British Columbia).
The legal framework governing the Purchase Agreement Addendum (Canada) in Canada draws on several key statutes and regulatory bodies. Under provincial residential tenancies legislation — including Ontario's Residential Tenancies Act 2006 and British Columbia's Residential Tenancy Act (SBC 2002) — the Landlord and Tenant Board (Ontario) or Residential Tenancy Branch (BC) adjudicates disputes. The Land Title Act governs property registration through provincial land title offices. The Canada Revenue Agency (CRA) administers the non-resident property tax and GST/HST on real estate transactions. Parties executing a Purchase Agreement Addendum (Canada) in Canada should confirm the document reflects current law, including any amendments enacted since the original drafting date. The Provincial Real Property Acts sets the foundational requirements.
When Do You Need a Purchase Agreement Addendum (Canada)?
A Canadian Purchase Agreement Addendum is needed whenever the parties to an existing real estate purchase agreement wish to modify, supplement, or clarify any term of the original agreement. The most common scenarios include price adjustments following a home inspection that reveals deficiencies, changes to the closing date due to financing delays or other circumstances, the addition of chattels or fixtures not originally included in the agreement, modifications to conditions (such as extending a financing condition deadline), and addressing title issues discovered during the due diligence process.
The addendum is also necessary when additional property is being added to the transaction. For example, if the buyer and seller agree after the original APS was signed that an adjacent lot, garage, parking space, or storage unit should also be included in the sale, an addendum is the proper vehicle for documenting this addition and specifying the additional purchase price and terms.
In Ontario, the Real Estate and Business Brokers Act, 2002 (S.O. 2002, c. 30, Sched. C) and its regulations govern real estate transactions, and the OREA standard forms include specific provisions for addenda. In British Columbia, the Real Estate Services Act (S.B.C. 2004, c. 42) governs, and the BCREA Contract of Purchase and Sale has its own addendum format. The addendum should be prepared promptly after the parties agree to the changes and must be signed by both parties before it becomes binding.
Parties in Canada should prepare a Purchase Agreement Addendum (Canada) proactively rather than waiting for a dispute to arise. Courts interpret agreements based on the written terms rather than oral representations. Under provincial residential tenancies legislation — including Ontario's Residential Tenancies Act 2006 and British Columbia's Residential Tenancy Act (SBC 2002) — the Landlord and Tenant Board (Ontario) or Residential Tenancy Branch (BC) adjudicates disputes. The Land Title Act governs property registration through provincial land title offices. The Canada Revenue Agency (CRA) administers the non-resident property tax and GST/HST on real estate transactions. Where the transaction involves regulated activities, prior approval from the relevant authority may be required before execution.
What to Include in Your Purchase Agreement Addendum (Canada)
An effective Canadian Purchase Agreement Addendum must include several essential elements to be legally valid and enforceable. The addendum must clearly reference the original Agreement of Purchase and Sale by date and identify both parties (Buyer and Seller) by their full legal names and addresses. The effective date of the addendum must be specified, and the document must explicitly state that it supplements and forms part of the original agreement.
The substantive terms of the addendum must be clearly and unambiguously stated. If additional property is being added, the legal description and municipal address must be provided. If the purchase price is being changed, both the new price and the payment terms must be specified. The payment method should reflect Canadian banking practices, such as certified cheque, bank draft, wire transfer, or electronic funds transfer. The closing date must be clearly stated if it differs from the original agreement.
The addendum must address the allocation of applicable taxes, particularly the provincial land transfer tax. In Ontario, the Land Transfer Tax Act (R.S.O. 1990, c. L.6) imposes a graduated tax based on the purchase price. British Columbia charges a Property Transfer Tax under the Property Transfer Tax Act (R.S.B.C. 1996, c. 378). Alberta does not have a land transfer tax but charges land title registration fees. The GST/HST may also apply to certain real estate transactions, particularly new construction, under the Excise Tax Act (R.S.C. 1985, c. E-15).
The addendum should include a clause confirming that all other terms and conditions of the original agreement remain in full force and effect, except to the extent they conflict with the addendum terms. Both parties must sign and date the addendum. The governing law clause should reference the applicable provincial law.
Additional compliance elements for a Purchase Agreement Addendum (Canada) used in Canada include: Under provincial residential tenancies legislation — including Ontario's Residential Tenancies Act 2006 and British Columbia's Residential Tenancy Act (SBC 2002) — the Landlord and Tenant Board (Ontario) or Residential Tenancy Branch (BC) adjudicates disputes. The Land Title Act governs property registration through provincial land title offices. The Canada Revenue Agency (CRA) administers the non-resident property tax and GST/HST on real estate transactions. Forms-legal.com provides this template as a starting point for Canada-compliant documentation.
Sources & Citations
Statutory citations link to official government sources.
- R.S.C. 1985, c. E-15CA official
Cite this page
Reference this free template in an article, syllabus, or research note:
Forms Legal. (2026). Purchase Agreement Addendum (Canada) (Canada) [Legal document template]. Forms Legal. https://forms-legal.com/canada/real-estate/purchase-sale/purchase-agreement-addendum-canada
"Purchase Agreement Addendum (Canada) (Canada)." Forms Legal, 2026, https://forms-legal.com/canada/real-estate/purchase-sale/purchase-agreement-addendum-canada.
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note = {Free legal document template. Based on Provincial Real Property Acts}
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Frequently Asked Questions
A Purchase Agreement Addendum is a supplementary document that modifies or adds to the terms of an existing Agreement of Purchase and Sale (APS) in Canadian real estate. Under Canadian contract law, any material change to a binding contract must be documented in writing and agreed to by all parties. The addendum becomes part of the original agreement and is legally binding once signed by both the buyer and seller. In Ontario, the standard form Agreement of Purchase and Sale is published by the Ontario Real Estate Association (OREA), and addenda are commonly used to address additional terms not covered in the standard form. Other provinces have their own standard forms published by their respective real estate associations. Under Canada law, Provincial Real Property Acts, parties should seek independent legal advice from a qualified lawyer to confirm compliance with all applicable requirements. Under provincial residential tenancies legislation — including Ontario's Residential Tenancies Act 2006 and British Columbia's Residential Tenancy Act (SBC 2002) — the Landlord and Tenant Board (Ontario) or Residential Tenancy Branch (BC) adjudicates disputes. The Land Title Act governs property registration through provincial land title offices. Forms-legal.com provides this template as a starting point for Canada-compliant documentation.
Land transfer taxes in Canada vary by province and may be affected by changes made in an addendum. In Ontario, the Land Transfer Tax Act (R.S.O. 1990, c. L.6) imposes a graduated tax on the purchase price, and the City of Toronto imposes an additional Municipal Land Transfer Tax. In British Columbia, the Property Transfer Tax Act (R.S.B.C. 1996, c. 378) imposes a property transfer tax based on the fair market value. Alberta does not have a land transfer tax but charges a land title registration fee. If the addendum changes the purchase price, the applicable land transfer tax will be calculated based on the new amount. First-time homebuyer exemptions may apply in some provinces. Under Canada law, Provincial Real Property Acts, parties should seek independent legal advice from a qualified lawyer to confirm compliance with all applicable requirements. Under provincial residential tenancies legislation — including Ontario's Residential Tenancies Act 2006 and British Columbia's Residential Tenancy Act (SBC 2002) — the Landlord and Tenant Board (Ontario) or Residential Tenancy Branch (BC) adjudicates disputes. The Land Title Act governs property registration through provincial land title offices. Forms-legal.com provides this template as a starting point for Canada-compliant documentation.
Yes, an addendum is the proper legal mechanism to extend the closing date of a real estate purchase agreement in Canada. Both the buyer and seller must agree to the new closing date and sign the addendum. Under Canadian common law, time is generally 'of the essence' in real estate contracts, meaning that failure to close on the specified date can constitute a breach of contract. By executing an addendum, the parties formally agree to a new closing date, preserving the validity of the original agreement. The addendum should clearly state the new closing date and confirm that all other terms of the original agreement remain unchanged. Under Canada law, Provincial Real Property Acts, parties should seek independent legal advice from a qualified lawyer to confirm compliance with all applicable requirements. Under provincial residential tenancies legislation — including Ontario's Residential Tenancies Act 2006 and British Columbia's Residential Tenancy Act (SBC 2002) — the Landlord and Tenant Board (Ontario) or Residential Tenancy Branch (BC) adjudicates disputes. The Land Title Act governs property registration through provincial land title offices. Forms-legal.com provides this template as a starting point for Canada-compliant documentation.
In most Canadian provinces, a purchase agreement addendum does not need to be notarized, but it must be signed by all parties to the original agreement. In Ontario, the standard practice is for the addendum to be signed by both the buyer and seller, with the signatures witnessed by their respective real estate agents or lawyers. In British Columbia, the Property Law Act (R.S.B.C. 1996, c. 377) requires that contracts for the sale of land be in writing under the Statute of Frauds. While notarization is not required, having the addendum prepared or reviewed by a real estate lawyer is advisable for significant changes to ensure legal compliance. Under Canada law, Provincial Real Property Acts, parties should seek independent legal advice from a qualified lawyer to confirm compliance with all applicable requirements. Under provincial residential tenancies legislation — including Ontario's Residential Tenancies Act 2006 and British Columbia's Residential Tenancy Act (SBC 2002) — the Landlord and Tenant Board (Ontario) or Residential Tenancy Branch (BC) adjudicates disputes. The Land Title Act governs property registration through provincial land title offices. Forms-legal.com provides this template as a starting point for Canada-compliant documentation.
A Purchase Agreement Addendum (Canada) does not legally require a lawyer in Canada, and individuals and businesses may draft and execute the document independently. The Provincial Real Property Acts does not mandate legal representation for the creation or signing of this type of document. However, seeking independent legal advice from a qualified Canada lawyer is recommended for transactions involving substantial financial value, complex regulatory requirements, or cross-border elements where multiple legal jurisdictions may apply. A lawyer can verify that the document complies with all applicable statutory requirements, identify potential risks specific to the transaction, and confirm that the terms adequately protect the interests of all parties involved. The Federal Court of Canada has jurisdiction over disputes arising from this type of document, and Corporations Canada may impose additional compliance obligations depending on the nature of the underlying transaction. Professional legal review is particularly advisable where the document will be submitted to government agencies or used as evidence in legal proceedings.
This template is provided for informational purposes only and does not constitute legal advice. Laws vary by jurisdiction and change over time. Consult a qualified attorney for advice specific to your situation.Full disclaimer
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