Can I use Ontario’s online Child Support Service?

4. Get your Notice of Calculation

After you submit your online application for , your partner gets a notice in the mail from the Ministry of the Attorney General. This notice tells them that you have used the Child Support Service to set up child support. It:

If your partner responds saying they don’t agree to use the service, the service won’t be able to process your application. And you won’t get your $80 filing fee back. The service mails you a letter explaining why your application wasn’t processed.

If your partner doesn’t respond, the service won’t be able to process your application. And you won’t get your $80 filing fee back.

Get your Notice of Calculation

If your partner responds and agrees to use the Child Support Service, the service uses your income information and sends a to you and your partner that says how much child support must be paid.  

Both of you must follow the Notice of Calculation as if it is a .

A mistake on your Notice of Calculation

If you or your partner thinks your Notice of Calculation has a mistake, for example, a name is spelled wrong, or the parent’s pay stubs were not used to calculate income correctly, you can ask for it to be corrected within 15 days of the date the Notice is .

If you disagree with the Notice of Calculation for another reason, such as you don’t agree with the amount of child support the service calculated, you have to ask the court to change it. You do this by bringing a motion to change child support.

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