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Prenup laws in Alberta

Should I DIY Our Cohabitation Agreement?

Need To Know

A cohabitation agreement is a legally recognized contract for unmarried couples in Canada, but it is only enforceable if specific legal requirements are met. While many couples turn to DIY cohabitation agreements or online templates to save money or simplify the process, these options often fail to account for province-specific family law rules, proper financial disclosure, and mandatory legal obligations. As a result, poorly drafted agreements can create a false sense of security and may not hold up if the relationship ends. Using a guided, lawyer-built platform or combining a DIY approach with legal review can help balance affordability with legal reliability. In more complex situations such as significant income imbalances, trusts, or property on a reserve, professional legal advice is strongly recommended to avoid costly mistakes later.

If you and your partner are living together or planning to move in together, you may be wondering whether you should create a cohabitation agreement and, if so, whether you can do it yourselves. Many couples search for a DIY cohabitation agreement, download a cohabitation agreement template, or ask whether they really need a lawyer for a cohabitation agreement.

This article explores what a cohabitation agreement is, the purpose of a cohabitation agreement under Canadian law, why couples consider DIY options, and the real legal risks involved. The goal is not to discourage proactive planning, but to help you make an informed decision about whether a DIY cohabitation agreement is right for you.


What Is a Cohabitation Agreement?

A cohabitation agreement is a written contract between two people who live together in a marriage-like relationship but are not married. It sets out how property, finances, and other matters will be handled during the relationship and if the relationship ends.

Under Canadian family law, cohabitation agreements are recognized in every province and territory, although the specific rules and default rights for unmarried couples vary by jurisdiction. Understanding what is a cohabitation agreement, and what it can and cannot do, is essential before deciding how to create one.

What Is the Purpose of a Cohabitation Agreement?

The purpose of a cohabitation agreement is to provide clarity and predictability. It allows couples to decide in advance how they want to handle key issues rather than relying on default legal rules that may not reflect their intentions.

Common goals include:

  • Protecting assets acquired before the relationship
  • Clarifying responsibility for debts and expenses
  • Setting expectations around support if the relationship ends
  • Reducing conflict and uncertainty in the event of separation

For many couples, the purpose of a cohabitation agreement is not about planning for failure, but about planning responsibly.


Why People Choose a DIY Cohabitation Agreement

There are several reasons couples consider a DIY cohabitation agreement.

Cost is often a major factor. People frequently ask how much does a cohabitation agreement cost, and traditional legal services can feel expensive or intimidating. Online templates and DIY tools promise an affordable and fast alternative.

Accessibility is another reason. Some couples prefer to work through issues privately and at their own pace. Others live in areas with limited access to family law lawyers or struggle to coordinate schedules.

Finally, many couples believe their situation is simple and does not require professional support. This belief often leads them to search for a cohabitation agreement template and attempt to draft an agreement on their own.


The Benefits of a DIY Cohabitation Agreement

There are real advantages to taking a DIY approach, especially compared to having no agreement at all.

A DIY cohabitation agreement can:

  • Encourage early and open conversations about finances and expectations
  • Help couples reflect on what matters most to them
  • Be more affordable than traditional lawyer-drafted agreements
  • Provide a starting point for further legal review

For some couples, the process of discussing and documenting expectations is just as valuable as the final document. In that sense, a DIY approach can serve an important educational and relational purpose.


The Legal Risks of a DIY Cohabitation Agreement

While DIY cohabitation agreements can be appealing, they also carry significant legal risks. This is where many couples run into problems.

One major risk is enforceability. People often ask, are cohabitation agreements legally enforceable in Canada? The answer is yes, but only if certain legal requirements are met. These typically include full financial disclosure, voluntary consent, and terms that comply with family law principles.

DIY agreements frequently fail because:

  • Assets or debts are not properly disclosed
  • Language is vague or internally inconsistent
  • Clauses attempt to override mandatory legal obligations
  • The agreement does not reflect provincial law

Another risk is false confidence. A signed document can create a sense of security, even if the agreement would not hold up in court. This can lead to unpleasant surprises during separation.


How Jointly Compares to a DIY Cohabitation Agreement

Unlike a purely DIY cohabitation agreement or a generic cohabitation agreement template, Jointly was built by lawyers with deep experience in Canadian family law. The platform has been reviewed by lawyers in every province and is customized to reflect province-specific legal requirements, rather than relying on one-size-fits-all language. While a DIY agreement often depends on guesswork and copied clauses, Jointly guides couples through the issues that actually matter under their provincial law and helps them create an agreement that reflects their real circumstances. The result is greater reliability, clearer expectations, and a level of customization that standard templates simply cannot offer, while still being far more accessible than traditional legal services.


When You Should Not DIY a Cohabitation Agreement

There are situations where a DIY cohabitation agreement is especially risky.

You should think carefully before DIYing if:

  • There is a large income or power imbalance
  • Either partner has complex asset classes, like trusts
  • You own property on a reserve
  • There are complex support or inheritance concerns

In these cases, professional guidance is strongly recommended. The cost of fixing a flawed agreement later is often much higher than getting it right at the start.


Can I Use a Cohabitation Agreement Template and Still Get Legal Advice?

Many couples ask whether they can use a cohabitation agreement template and still get legal advice. In practice, this is a common and reasonable approach.

A template or guided online process can help you organize your thoughts and identify issues to discuss. Legal advice can then be used to review the agreement, flag risks, and ensure it aligns with Canadian law. Independent legal advice isn’t required in all provinces, but it is recommended if you have the resources to do so. 

This hybrid approach can strike a balance between affordability and protection. It also helps address the common question, do you need a lawyer for a cohabitation agreement? While not legally required, legal advice greatly increases the likelihood that the agreement will be enforceable.


How to Make a DIY Cohabitation Agreement with Jointly

Jointly guides couples through building a cohabitation agreement step by step using plain-language questions designed by family lawyers. Instead of relying on a generic cohabitation agreement template, the platform helps you identify the issues that actually matter under your provincial law, based on your finances and your relationship.

Jointly was built by lawyers, reviewed by lawyers in every province, and customized to reflect province-specific legal requirements. As you build your agreement, you are guided through structured financial disclosure and thoughtful decision-making around property, expenses, and support.

This approach keeps the affordability and accessibility people look for in a DIY option, while offering far greater reliability and customization than a template or blank document.


Are DIY Cohabitation Agreements Worth the Risk?

The most important takeaway is that having a conversation and creating some form of agreement is almost always better than doing nothing. The key is making sure that the agreement you create is reliable and based on the law in your province – a free template pulled from an illegitimate source, based on the law in another jurisdiction is unlikely to have the effect you want it to.

Jointly takes the risk out of making a cohabitation agreement yourself, on your terms. If you’re ready, click here to get started.


FAQs

Is a DIY cohabitation agreement legally binding?

A DIY cohabitation agreement can be legally binding in Canada, but only if it meets legal requirements such as full disclosure, voluntary consent, and compliance with family law. Many DIY agreements fail because these requirements are not met. If you make an agreement with Jointly, we’ll walk you through the steps you need to take to make your agreement legally binding.

How much does a cohabitation agreement cost?

The cost of a cohabitation agreement in Canada varies widely, from free or low-cost templates to $5,000+ for complex, lawyer-assisted contracts. The price depends on factors like complexity, legal fees, location, negotiation needs, and customization. With Jointly, you can build your cohabitation agreement for $429.

Can I write my own cohabitation agreement?

Yes, you can write your own cohabitation agreement. However, writing your own agreement comes with legal risks, and professional advice is strongly recommended to ensure it is enforceable and appropriate for your situation.

Aimee Schalles

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Jointly is only suitable where both partners are adults. Send us a note if you have any questions!

If one or both of you are not completely honest about your assets or debts, a judge could later decide that the agreement was unfair and decide not to enforce it if the relationship ends. Jointly is not a good fit for you unless you're prepared to share details about your assets and debts with your partner.  Send us a note if you have any questions!

Jointly is not able to handle the separation of a jointly operated business. Send us a note if you have questions!

Jointly does not support planning for property on reserves. Send us a note to let us know what you'd like to see incorporated into our future plans!

At present, Jointly is not able to support committed polyamorous relationships. Send us a note to let us know what you'd like to see incorporated into our future plans!

Relationship agreements which include parenting arrangements are not enforceable unless you are already separated or thinking about separating. Because of this, Jointly does not have the option to include parenting arrangements that would apply if your relationship ends . Send us a note if you have any questions!

You should not sign a relationship agreement if someone is forcing you to do so or if there is abuse in your relationship. Please talk to a lawyer, who can help you navigate this situation.

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