When your ex won't pay: enforcing child and spousal support in Canada and the US

Signing the agreement was supposed to be the end of the money arguments. Then the payments start arriving late, then short, then not at all, and every month you are choosing between confronting your ex and covering the gap yourself. That is exhausting, and it can feel like you are the only one holding the family's finances together.

The good news is that support enforcement is one of the few parts of family law where the system is built to do the work for you. You just have to switch it on.

Who enforces child and spousal support?

Canada

Every province and territory runs a maintenance enforcement program: the Family Responsibility Office (FRO) in Ontario, the Maintenance Enforcement Program (MEP) in Alberta, the Family Maintenance Enforcement Program (FMEP) in BC, and equivalents elsewhere. Once a support order, or an agreement filed with the court, is registered, the agency collects from the payor and pays the recipient, so you do not have to deal with the money directly. Tools include:

• Garnishing wages and bank accounts, and federal payments such as tax refunds, Employment Insurance and CPP benefits
• Suspending driver's licences and, under federal law, passports and some federal licences
• Reporting arrears to credit bureaus
• Registering liens against property
• Seizing lottery winnings in some provinces
• Bringing default hearings, which can lead to jail for wilful non-payment

In Ontario, a court order for support is automatically filed with the FRO. A separation agreement is not: you file it with the court first and then register it with the FRO. Other provinces generally require you to enrol. The maintenance enforcement program glossary entry has more detail, and your provincial hub links to the local program.

United States

Every state runs a child support agency under Title IV-D of the Social Security Act, and many also enforce spousal support where it is ordered together with child support. Tools mirror the Canadian ones: income withholding orders sent directly to employers, federal and state tax refund intercepts, licence suspensions, passport denial when arrears exceed $2,500, credit reporting, liens and contempt proceedings. Most new child support orders include income withholding from the start unless the parents agree otherwise or a court finds a good reason not to. The federal Office of Child Support Services helps coordinate cases between states. Services are free or low cost.

Step one: make your agreement enforceable

A private separation agreement is a contract. To use the enforcement system it usually has to be filed with the court and registered with the agency. In Ontario, a domestic contract can be filed with the court under section 35 of the Family Law Act and then registered with the FRO. Other provinces have similar processes. In the US, support terms are normally written into the divorce decree or a court order, which the agency then enforces. If you have an agreement that was never filed, do it now, before there is a missed payment. FairWell's Complete Package links to official information on filing in your province or state.

Step two: keep records

Enforcement runs on numbers. Keep a simple ledger of every payment due and received, with dates and amounts. Keep the agreement, any amendments, and every message about payment. If payments were informal, cash or e-transfer, gather the evidence now. Agencies and courts calculate arrears from records, and the parent with the better records usually wins any argument about what was paid. A co-parenting app can log payments and messages in one place.

Step three: act early

Arrears grow. A payor who is $2,000 behind can usually catch up; a payor who is $40,000 behind often cannot, and the agency's tools become less effective as the debt outgrows the payor's income. Register as soon as a pattern of missed payments is clear. Do not accept promises in place of payments for more than a month or two.

What can you do yourself when support is not paid?

You cannot withhold parenting time because support is unpaid. In both countries, support and parenting time are separate obligations. Denying time with the children breaches your own obligations and damages your position.

You also should not agree to reduce support informally to keep the peace. Any change should be in writing and ideally go through the agreement's variation process or a court. Otherwise the agency will keep collecting the original amount, and arrears will keep building, which creates a mess for both of you.

If your ex is abusive or intimidating, registering with an agency means the money no longer passes between you. If you are worried about your safety, read safety planning during separation and tell the agency so they can take care with your contact details.

What happens when the payor genuinely cannot pay?

Job loss, illness and business failure happen. The right response from a payor is to apply for a change right away, with full financial disclosure, rather than stop paying. Read how agreements are varied. Enforcement agencies can sometimes agree payment plans on arrears, and courts can reduce or cancel arrears in limited cases where the payor truly could not pay and asked for a change promptly. They rarely do so for payors who simply stopped and stayed silent.

If you are the payor and you are struggling, contact the agency before you miss a payment. Explaining early, with documents, gives you far more options than waiting for enforcement to start.

Enforcing other terms

Enforcement agencies handle support. Other obligations, such as a payment for the house, transferring retirement savings, or keeping life insurance in place, are enforced through the courts as breaches of the order or contract. That is why security for large payments matters at the drafting stage, and why life insurance clauses should require annual proof of coverage.

Cross-border payors

If your ex has moved to another province, state or country, start with your home agency. It will begin reciprocal enforcement. Provinces and territories have reciprocal arrangements with each other and with US states, and Canada has arrangements with many other countries. It is slower than local enforcement, often months rather than weeks, but it works.

A note on tone

Registering with an enforcement agency is not an act of aggression. Many payors prefer it, because the agency handles the logistics and takes money out of the conversation between the two of you. If you are worried about the reaction, you can say exactly that: "I'd rather we never have to talk about payments again."

What to do this week

1. Find your order or signed agreement and check whether it has been filed with the court.
2. Start a payment ledger going back to the first missed or late payment.
3. Look up your local enforcement program and download its registration forms.
4. Send one short, factual message to your ex noting the amount owing and that you are registering with the agency. Keep a copy.
5. If money is tight right now, contact your local legal aid office or a family law information centre about support options while enforcement gets going.

This guide is legal information, not legal advice, and it is written for a general audience across Canada and the United States. Family law is provincial and state-based and changes over time. Before you rely on anything here for your own situation, confirm it with a qualified family lawyer in your province or state. FairWell can connect you with one through the professional directory. How we write and check our guides.