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Retroactive Child Support Ottawa
Recovering the Child Support Your Child Was Entitled To
An experienced Ottawa family law lawyer can assess whether unpaid or underpaid child support may be recoverable and determine the most effective legal strategy.
If you believe child support was set too low, paid inconsistently, or not paid at all, you may be entitled to retroactive child support in Ottawa.

Introduction
Child support is not optional. It is a legal right that belongs to the child, not the parent. Across Canada—and particularly in Ottawa—many parents receive less child support than required under the Child Support Guidelines. In some cases, child support payments were never made. In others, support was calculated using incomplete or inaccurate income information.
Under Canadian family law, courts may order retroactive child support where a payor parent failed to meet their child support obligations. Most retroactive child support claims go back up to three years, but in certain circumstances, courts may award retroactive support for a longer period.
What Is Retroactive Child Support?
Retroactive child support refers to child support owed for past periods where:
Child support was never paid
The amount of child support paid was incorrect
The payor parent’s income increased but support was not updated
The payor failed to provide proper financial disclosure
Support was based on an informal or outdated agreement
Courts may award retroactive child support to correct past underpayment and ensure the child receives the support they were entitled to under the Child Support Guidelines.
How Far Back Can Retroactive Child Support Go?
The Three-Year Guideline — and When Courts Go Further
As a general rule, courts look back up to three years from the date the recipient parent provided effective notice that child support needed to be reviewed or adjusted. This often results in a meaningful retroactive award.
However, courts may order retroactive child support beyond three years where the circumstances justify it, including:
- Failure to disclose income
- Concealment of income or income increases
- Self-employment or corporate income manipulation
- Blameworthy conduct by the payor parent
- Long-standing and serious underpayment
Courts focus on the conduct of the payor, the circumstances of the child, and whether the child was deprived of appropriate support.
Seeking Child Support Arrears Beyond Three Years
Although three years is common, child support arrears may be recoverable for longer periods in the right case.
Courts consider factors such as:
Whether the recipient delayed unreasonably
Whether income information was withheld
The payor’s income and ability to pay
The child’s past and present circumstances
Overall fairness and whether an award would cause undue hardship
Where disclosure failures or power imbalances exist, courts may order a longer retroactive support order.
Helping Support Recipients Obtain the Correct Amount of Child Support
Our firm assists support recipients by:
Assessing whether child support was underpaid
Calculating retroactive child support accurately
Determining whether to vary child support
Seeking interim and final child support orders
Enforcing unpaid support payments and arrears
An Ottawa family law lawyer can help ensure children receive the financial support they were entitled to all along.
When Child Support Is Commonly Underpaid
Self-Employed Payors and Corporations
Child support is frequently understated when the payor parent is:
Self-employed
A business owner
A shareholder or director of a corporation
In these cases, reported income may not reflect true available income. Courts may:
Impute income
Add back personal expenses
Review retained earnings
Examine lifestyle evidence
Where a payor controls their income, court intervention is often required to determine the appropriate amount of child support.
Parenting Time Over 40% Does Not Eliminate Support
Parenting time does not eliminate child support obligations.
Even where parenting time exceeds 40%, the court may still order child support—especially where one parent earns more or where table amounts under the Child Support Guidelines apply.
Claims of undue hardship are difficult to prove and rarely succeed.
Legal Strategies for Recovering Retroactive Child Support
Depending on the circumstances, legal options may include:
Applying to order retroactive child support
Compelling income disclosure
Seeking a retroactive adjustment
Claiming child support arrears
Imputing income where earnings are understated
Enforcing support through a court order or agreement
A family law lawyer can determine the best strategy based on the payor’s conduct and income history.
Interim Relief: Immediate Support While Your Case Is Ongoing
In many cases, courts may grant interim child support while a retroactive claim proceeds.
To obtain interim relief, the recipient typically must show:
A prima facie entitlement to support
Financial need
The payor’s ability to pay
Courts focus on maintaining stability for the child while the case is determined.
Legal Fees and Access to Justice
Legal Fees May Be Tax Deductible
Legal fees incurred to establish, increase, or enforce child support are generally tax deductible.
Cost Awards in Child Support Cases
Courts may award costs where:
Disclosure was withheld
Support was clearly underpaid
Litigation was necessary to enforce basic obligations
Litigation Financing and Fee Advances
Speak With an Ottawa Lawyer About Retroactive Child Support
Retroactive child support claims often involve income increases, disclosure failures, and complex financial analysis. With the right legal approach, significant recovery may be possible.
If you are seeking retroactive child support in Ottawa, now may be the time to act.

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Frequently Asked Questions
What is retroactive child support in Ontario?
How far back can a court order retroactive child support?
Most courts order retroactive child support up to three years, but longer periods may apply in cases involving blameworthy conduct or lack of financial disclosure.
What is effective notice?
Can retroactive child support be ordered if there is already a child support order?
Yes. Courts may order a retroactive adjustment even where an existing child support order or separation agreement exists.
What factors do courts consider?
Should I speak to a family law lawyer?
Resolve Your Legal Challenges
Legal matters, whether in family or employment law, can be stressful and time-sensitive. Our Ottawa lawyer specialize in providing focused, practical solutions designed to protect your rights and achieve effective outcomes.
By booking an appointment with our team, you take a concrete step toward resolving disputes, understanding your options, and safeguarding your future. We handle each case with precision and care, ensuring your unique situation is fully addressed. Don’t wait—secure your appointment today and move forward with confidence knowing experienced legal support is on your side.