A separation agreement is one of the most important documents a couple can create when ending their relationship. It defines financial responsibilities, parenting arrangements, and how property is divided. However, many people make critical mistakes that can lead to disputes or unfair outcomes later. Here are the top five mistakes to avoid when preparing a separation agreement in Ontario.

1. Not Getting Independent Legal Advice
One of the most common and costly mistakes is signing an agreement without consulting a lawyer. Without proper legal guidance, one or both parties may not fully understand their rights or obligations, making the agreement vulnerable to being challenged in court.

2. Incomplete Financial Disclosure
A valid separation agreement requires full and honest financial disclosure from both sides. Hiding assets, debts, or income can make the agreement invalid and lead to serious legal consequences.

3. Overlooking Future Changes
Life circumstances change — jobs, income, children’s needs, or remarriage. A well-drafted agreement should include clauses that allow for future reviews or modifications, preventing disputes when situations evolve.

4. Ignoring Tax Implications
Many couples forget to consider how taxes affect property division, spousal support, and child support. Failing to account for tax consequences can reduce the real value of assets or create unexpected liabilities later.

5. Using a Generic Template
Online templates may seem convenient, but every relationship and financial situation is unique. Generic agreements often miss key details, such as pension rights, insurance, or specific parenting terms, which can cause confusion or unfairness.

Conclusion
A separation agreement should protect both parties and provide long-term stability. Taking the time to get professional legal advice, ensure full disclosure, and plan for future changes helps create an agreement that stands the test of time and supports a fair resolution for everyone involved.