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Find a Lawyer » Canada Legal Guides » Ontario Legal Guides » Family Law & Divorce Ontario » Imputing Income to an Ex-Spouse Who Works for Under the Table Cash in Ontario

Imputing Income to an Ex-Spouse Who Works for Under the Table Cash in Ontario

2 Jul 2026 4 min read No comments Family Law & Divorce Ontario
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If your ex-spouse works for cash under the table in Ontario, the Superior Court of Justice can impute an income based on their true earning capacity. You generally need robust lifestyle evidence, and the basic court filing fee for an Application is currently $214 CAD.

Going through a separation is stressful enough, but it becomes incredibly frustrating when your former partner hides their true earnings. In Ontario, it is not uncommon for individuals working in construction, landscaping, or various trades to accept cash jobs. However, the family justice system has strict mechanisms to handle this deceptive behaviour.

When a spouse reports an artificially low income to the Canada Revenue Agency (CRA), the court can “impute” income. 💰 This means a judge assigns a fictitious but realistic income to them for the purposes of calculating fair child or spousal support. It ensures that children and former partners are not financially disadvantaged by off-the-books labour.

Step-by-Step Process in Ontario

Whether you reside in Toronto, Mississauga, or Ottawa, the process to impute income requires building a solid foundation of proof. Most applicants in this province choose to browse our directory and hire a local law firm to navigate these evidentiary hurdles effectively, as proving hidden income is a highly technical process.

Step 1: Gathering Lifestyle Evidence

Because under the table cash leaves no direct paper trail, you generally need to prove that their lifestyle does not match their tax returns. 📸 Collect evidence such as photos of expensive holidays, new vehicles, or luxury purchases. Social media posts often serve as excellent proof of undisclosed wealth and can be used effectively in court.

Step 2: Requesting Formal Financial Disclosure

In Ontario family law, both parties must provide full, transparent financial disclosure. You will formally request their bank statements, credit card bills, and CRA Notices of Assessment. If they refuse to comply or provide heavily redacted documents, you may need to file a motion to compel them to produce these records.

Step 3: Working with Financial Professionals

Proving hidden income can be incredibly complex. 🔍 Many individuals hire a forensic accountant to analyze the household spending during the marriage to show that the family survived on much more than the declared income. A skilled local lawyer will know how to present this expert evidence compellingly to a judge.

Step 4: Filing at the Superior Court of Justice

Once your evidence is prepared, you will file your Application at your local Superior Court of Justice. 📍 You will typically use Form 8 (Application (General)) for most family law claims, or Form 8A (Application (Divorce)) if you are also formally applying for a divorce. The court will ultimately review the lifestyle evidence, hear from the experts, and decide what the ex-spouse’s true earning capacity should be moving forward.

How Much Does it Cost in Ontario?

The financial investment required to impute income can vary significantly depending on how strongly the other party fights the allegations. Here is a breakdown of typical costs in Canadian dollars (noting that triennial fee indexation has been officially deferred to January 1, 2027, under O. Reg. 396/25):

  • Court Filing Fees: The basic fee for filing an initial Application under O. Reg. 417/95 is exactly $214 CAD (plus an additional $10 federal fee only if a divorce is also claimed).
  • Setting Down for Trial: If the matter proceeds to a full trial, the fee for placing the application on the list for hearing is exactly $445 CAD.
  • Lawyer Fees: An experienced Ontario family lawyer typically charges between $300 and $600 CAD per hour.
  • Expert Witnesses: Hiring a forensic accountant can add between $3,000 and $10,000 CAD to your overall expenses, depending on the complexity of the file.
Type of IncomeEffect on Support Proceedings
Declared Minimum WageResults in unfairly low support payments based strictly on CRA tax returns.
Imputed Cash IncomeResults in higher, fair support payments reflecting the true lifestyle and earning capacity.

How Long Does the Process Take?

Family law matters involving hidden cash income are rarely resolved overnight. 🕑 If you can reach an agreement through mediation or negotiation, the process might take 4 to 6 months. However, if the matter requires a full trial at the Superior Court of Justice, it is entirely possible for the timeline to stretch from 12 to 24 months, largely depending on court availability and backlog in your specific municipality.

Frequently Asked Questions (FAQ)

What exactly is imputed income in family law?

Imputed income is an estimated amount of money that a judge determines a person is capable of earning, rather than what they actually declare on their official tax returns.

Will the CRA get involved if I expose their cash income?

While family courts and the CRA are separate entities, exposing tax evasion in public court records carries a distinct risk that the CRA may eventually audit the individual.

Do I absolutely need a lawyer for this process?

While self-representation is legally permitted, proving cash income requires strict adherence to complex rules of evidence. Hiring a local Ontario law firm greatly increases your chances of presenting a successful case.

Can hiding income affect decision-making responsibility for our children?

Generally, child support and decision-making responsibility (formerly known as custody) are treated as separate legal issues. However, a judge may severely question the overall credibility of a parent who actively deceives the court financially.

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