Child Support in Mediation: What Information You Need (and Common Pitfalls to Avoid)
Child support is one of the most common issues negotiated in mediation, and one of the easiest areas for agreements to go off-track if the numbers are not grounded in reliable information. In most cases, child support is not a “free negotiation”—there are guideline expectations, and the agreement should be workable, predictable, and enforceable.
This post explains the information typically needed to negotiate child support effectively in mediation, and common drafting gaps that can create disputes later.
1) Child support is usually guideline-based (even in mediation)
In Canada, child support is typically determined with reference to federal child support guidelines and income-based tables. In mediation, parents can agree on terms, but durable agreements usually:
start with accurate income, and
clearly define what is included in regular support versus what is handled separately as special/extraordinary expenses.
Practical point: Mediation works best when parties understand that support is usually grounded in guideline expectations, not “what feels fair” in the moment.
2) Step one: confirm the parenting arrangement (because it affects support)
Child support analysis often depends on the parenting arrangement, such as:
one parent having the majority of parenting time, or
a shared parenting arrangement (where parenting time is more evenly divided).
Mediation is more efficient when the parties:
define the parenting schedule clearly (including overnights and time allocation), and
avoid relying on vague phrases like “shared parenting” without specifying actual time.
3) Step two: determine income using documents (not guesses)
The most common source of conflict in child support mediation is income. Even cooperative families can run into trouble if support is agreed based on “last year’s salary” or informal estimates.
Common income documents:
recent paystubs
income tax returns
Notices of Assessment (and Reassessments, if any)
information about bonuses, commission, overtime, or allowances
records of EI/WCB/disability benefits (if applicable)
Self-employed or incorporated income:
Support discussions often require more detail (financial statements, corporate returns, business expense details). Mediation may need staged sessions so calculations can be done after full disclosure.
4) Special or extraordinary expenses (often called “section 7 expenses”)
In addition to base child support, many families share certain child-related expenses, such as:
childcare required for work or school,
health-related expenses not covered by insurance,
extraordinary extracurricular activities, and
other agreed categories.
In mediation, the key is to define:
which expenses are shared,
how they are approved (in advance? written consent?),
how they are split (often proportionate to income),
how receipts are exchanged, and
reimbursement timelines.
Practical drafting tip: Many disputes arise from unclear rules such as “we will split activities.” A clearer clause is “activities over $___ per season require written agreement in advance.”
5) Common child support mediation pitfalls (and how to avoid them)
Pitfall A: Unclear start date
Support should specify:
the start date,
the first payment date,
whether any arrears are owed, and how they are paid.
Pitfall B: No annual income exchange / adjustment process
A common, practical solution is an annual process:
exchange tax returns and Notices of Assessment by a set date each year, and
adjust support as of a specific month, based on updated income.
Pitfall C: Vague “shared expenses” language
If an agreement says “we split section 7,” but does not define approval, timing, and documentation, disputes often follow.
Pitfall D: Informal “credits” and off-the-books adjustments
Agreements often become unstable when parties start offsetting support with informal credits (“I bought the kids clothes so I paid less support”). Clear, consistent payment terms reduce conflict.
Pitfall E: Not planning for changes
Consider planning for foreseeable changes:
daycare ending, children starting school, shift-work changes,
one parent moving, employment changes,
children aging into different needs and expenses.
This can be managed with review dates and clear adjustment triggers.
6) Payment method and enforcement (practical considerations)
Mediation agreements should address:
method of payment (e-transfer, direct deposit),
due date each month,
proof of payment method,
what happens if a payment is missed.
Where appropriate, families may use the Maintenance Enforcement Program (MEP) for reliable collection and recordkeeping. Whether MEP is used depends on the family’s circumstances and level of trust.
7) Where pay-as-you-go legal support can help
Child support often looks simple, but small drafting gaps can create repeated conflict. Virtual, limited-scope support can help by:
identifying the correct income documents to gather,
preparing guideline-based support calculations for mediation discussions,
modelling options for special/extraordinary expenses,
drafting clear child support terms for a separation agreement (dates, payment method, annual exchange, review clause),
reviewing a proposed agreement for clarity and enforceability.
Consult call: $100. To request an intake link, email jessica@kochsolutions.ca.
8) If child support cannot be resolved: litigation as the backstop
If income disclosure is withheld, or parties cannot agree on income or expenses, court can be the backstop for disclosure orders, interim child support, and final support determinations. Many cases still settle once disclosure is complete and a structured process is in place.
FAQ
1) How is child support calculated in Alberta?
Child support is typically based on the payor’s income and guideline tables, with additional sharing of certain child-related expenses as appropriate. The details depend on parenting arrangements and accurate income information.
2) What documents do I need to calculate child support for mediation?
Commonly: paystubs, tax returns, Notices of Assessment, and information about variable compensation (bonuses, overtime, commission). Self-employed income may require more documents.
3) What are section 7 (special/extraordinary) expenses?
They are certain child-related expenses that are often shared separately from base child support, such as childcare and certain medical or activity costs, depending on circumstances.
4) Do we have to adjust child support every year?
Many agreements include an annual exchange of tax documents and an automatic adjustment process. This reduces future disputes and keeps support aligned with income.
5) What if the other parent won’t disclose income?
Mediation often cannot resolve support without disclosure. Court can be the backstop to require disclosure and set support on an interim or final basis.
Alberta resources
Alberta resources (helpful starting points):
Government of Alberta – Family Mediation: https://alberta.ca/family-mediation
LawCentral Alberta – Family Mediation Services: https://www.lawcentralalberta.ca/en/family-mediation-services-alberta-courts
Parenting After Separation (Alberta): https://www.alberta.ca/pas
Note: Family law and court processes can differ by province and territory. If guidance is needed for a specific jurisdiction, contact a local lawyer or the local courthouse for province-specific information.