Is it on consent? Have you share your financial info and agreed on a new amount to review the CS? Hard to follow as you are asking if it matters who file first, making it look like you are not in agreement with each other.
If that is the case, it doesn't matter who file first. The thing is, if you are the payor and the amount is to be increased, let the other party file first and let them pay the fees to initiate the action. If it's a decrease, (a meaningful one) file first and pay the fees. Fees can be claimed during the costs submission to the unsuccessful party.
The party initiating a new action will file a motion to change with this form;
http://ontariocourtforms.on.ca/static/media/uploads/courtforms/family/15/form-15-en-dec20.docx serve appropriately and file with affidavit of service
The party replying to the action will file an answer to a motion to change with this form;
http://ontariocourtforms.on.ca/static/media/uploads/courtforms/family/15b/form-15b-en-dec20.docx serve and file appropriately with affidavit of service
If the motion is on consent from both parties, you don't need to initiate an action through court. You must complete a Consent Motion to Change Child Support with this form;
http://ontariocourtforms.on.ca/static/media/uploads/courtforms/family/15d/form-15d-en-dec20.docx
If the motion to change on consent has more than the CS to review (like an increase in parenting time and decision making change, etc...), then you complete a Consent Motion to Change with this form;
http://ontariocourtforms.on.ca/static/media/uploads/courtforms/family/15c/form-15c-en-dec20.docx
Consent Motion to change are then forwarded to the other party for their review and signature with a proposed new order Form 25 only for the paragraphs being reviewed from the last Final Order. The proposed order must state which previous order is being reviewed and must have an indication stating �Approved as to form and content this XX day of Month, 202X� and a line to allow the other party to sign. Another copy of the proposed order (without the indication as to form and content) must be included for the judge/clerk registrar's approval. Once all signed, each party keep a copy. Then either party can bring the original documents (consent motion to change child support, order to form and content and the proposed order for the judge) to the court registrar for approval.
File number specification;
You always use the same file number that was allocated to your case. Every time you initiate a new action, you add -1 to your number.
For example; if your case number is FC-18-877 from the initial action, your final order will also have the same number stating on it.
When a new action is initiated, your new number will become FC-18-877-1 and your final order will also be FC-18-877-1.
The next action then after would be FC-18-877-2.
When initiating a new action, at time of drafting the new order, you must indicate which previous Final or temporary order you are reviewing. (FC-18-877-?) The new order should only review the affected paragraphs or/and add new paragraphs. You don't need to re-draft the whole initial/previous final order as you are already referring to it.
