Legal strategy reviewed by Deepa Tailor, Senior Family Lawyer. Updated January 2026 to reflect current Divorce Act and Family Law Act provisions.
You must be separated for 1 year (usually) and resident in Ontario for 1 year to file.
Most divorces are "Uncontested" (Administrative). Only "Contested" divorces (disputes over kids/money) go to trial.
The fastest way to divorce is to sign a Separation Agreement first, then file for a Simple Divorce.
Divorce is one of the most significant legal and emotional transitions you'll ever experience. But here's what most people don't understand: divorce is a legal dissolution of a contract. It doesn't have to be a dissolution of your sanity or your bank account.
"Divorce is a legal dissolution of a contract. It doesn't have to be a dissolution of your sanity or your bank account. We treat it as a project management challenge."
— The Tailor Law "Disruptor" Approach
At Tailor Law, we approach divorce as a project management challenge. There are inputs (your marriage, assets, children), processes (legal procedures, negotiations), and outputs (a divorce order, separation agreement, parenting plan). Our job is to manage that project efficiently, strategically, and with minimal collateral damage.
This guide will walk you through everything you need to know about divorce in Ontario: the legal requirements, the process options, the core issues you'll need to resolve, and the strategic decisions that will shape your post-divorce life.
To file for divorce in Ontario, you must meet two basic requirements:
Either you or your spouse must have been ordinarily resident in Ontario for at least 1 year immediately before filing.
You must prove one of three grounds: 1-year separation, adultery, or cruelty (physical or mental).
You and your spouse have lived separate and apart for at least one year with the intention to end the marriage. This is the ground used in 99% of divorces.
✓ You can live in the same house and still be "separated" if you're living separate lives (separate bedrooms, finances, meals).
Your spouse committed adultery and you have not forgiven them or resumed cohabitation for more than 90 days after discovering it.
⚠ Expensive to prove, requires evidence, and doesn't change property or support outcomes. We rarely recommend this route.
Your spouse treated you with such cruelty that continued cohabitation is intolerable. This requires significant evidence and often expert testimony.
⚠ High evidentiary burden, expensive, and doesn't affect financial outcomes. Almost always better to wait the year.
"99% of divorces are based on '1 Year Separation.' Claiming Adultery or Cruelty is expensive, hard to prove, and rarely changes the outcome. We almost always advise waiting the year. Use that time to negotiate your Separation Agreement and organize your finances."
Not all divorces are created equal. The path you take depends on whether you and your spouse can agree on the "Big 4" issues: parenting, child support, spousal support, and property division.
Best for: Couples with no children, no property, or who have already signed a Separation Agreement.
Just paperwork
No court appearance
Fastest & cheapest
Timeline: 4-6 months
Cost: $2,000-$4,000
Best for: Couples who need to resolve property, support, or parenting issues but want to avoid court.
Lawyers negotiate
Mediation or arbitration
Separation Agreement drafted
Timeline: 6-18 months
Cost: $10,000-$40,000
Best for: High-conflict cases, contested custody, or when negotiation fails.
Court intervention required
Multiple court appearances
Judge makes final decision
Timeline: 2-4 years
Cost: $50,000-$200,000+
"The fastest, cheapest, and least stressful way to divorce is to negotiate a Separation Agreement first, then file for a Simple Divorce. This is our default recommendation for 80% of clients."
Even if you think you'll end up in court, starting with negotiation gives you leverage, clarity, and often leads to settlement before trial.
Download our visual timeline of the Ontario divorce process — from separation to final divorce order. Includes key deadlines, forms, and strategic decision points.
Free PDF • No credit card required • Instant download
Whether you're negotiating or litigating, every divorce in Ontario revolves around four core issues. You need to resolve all of them before you can get your final divorce order.
Who makes decisions about the children? Where do they live? What's the parenting schedule? Ontario law uses the terms "decision-making responsibility" and "parenting time" instead of "custody" and "access."
Key Principle: The court's only concern is the "best interests of the child" — not what's fair to the parents.
Child support is calculated using the Federal Child Support Guidelines. It's based on the payor's income and the number of children. There's also Section 7 expenses for daycare, extracurriculars, and medical costs.
Key Principle: Child support is non-negotiable. You can't waive it or trade it away. It's the child's right, not the parent's.
Ontario uses an "equalization" system. You calculate each spouse's Net Family Property (NFP) — the value of assets acquired during the marriage minus debts. The spouse with the higher NFP pays half the difference to the other spouse.
Key Principle: The matrimonial home is treated differently — its value is always included in NFP, even if one spouse owned it before marriage.
Spousal support is not automatic. It depends on need, ability to pay, and the roles each spouse played during the marriage. The Spousal Support Advisory Guidelines (SSAG) provide a range, but judges have discretion.
Key Principle: Spousal support is about compensating disadvantage (e.g., one spouse gave up a career to raise kids) or meeting need (e.g., one spouse can't support themselves).
Strategic Note: The "Big 4" are interconnected. For example, if you agree to 50/50 parenting time, child support may be reduced or eliminated. If you waive spousal support, you might negotiate a larger property settlement. Everything is negotiable except child support.
Before you file for divorce or even meet with a lawyer, there are critical steps you should take to protect yourself and streamline the process.
Collect the last 3 years of tax returns, recent pay stubs, bank statements, investment account statements, mortgage documents, and credit card statements.
Why? You'll need to complete a Financial Statement (Form 13 or 13.1) for any divorce involving property or support.
You'll need a certified copy of your marriage certificate to file for divorce. If you were married outside Ontario, order it from the jurisdiction where you were married.
If you don't already have one, open a bank account in your name only. Start directing your income there and tracking your expenses separately.
Why? This creates a clear financial separation and protects you from your spouse draining joint accounts.
Write down the exact date you and your spouse separated. If you're living under the same roof, document how you're living "separate and apart" (separate bedrooms, finances, meals).
Why? The separation date determines when the 1-year clock starts and when property valuation is calculated.
Even if you and your spouse are on good terms, get independent legal advice before signing anything. A consultation costs $500-$1,000 and can save you tens of thousands in mistakes.
"Don't file for divorce yet. Gather your financial disclosure, organize your documents, and negotiate a Separation Agreement first. The client who organizes their financial disclosure before the first meeting saves thousands in legal fees."
Filing for divorce before you've resolved the Big 4 issues just starts the court clock ticking and increases pressure and costs. Do the groundwork first.
Every divorce is different. Explore the topics most relevant to your situation.
Month-by-month breakdown of how long each stage takes, from separation to final order.
How Net Family Property is calculated and what the equalization payment actually means for you.
Understand the real cost and time difference between the two paths before you choose.
Mediation, collaborative law, and arbitration — faster and cheaper routes to resolution.
The documents to gather, accounts to protect, and steps to take before you file.
When self-representation is realistic — and when it becomes a costly mistake.
The three legal grounds for spousal support and how the SSAG ranges are calculated.
Does adultery or cruelty affect your divorce outcome? What the law actually says.