How to withdraw CRA consent for child support calculation — and autofill 004-9973 with my-id.ca
Revoke tax-information consent without retyping your details
Clients who previously consented to Canada Revenue Agency disclosure for child support calculation repeat their name, address, and file references when withdrawing that consent. This guide is an example of storing them once in my-id.ca.
Official form and source
Start from the official source and always use the current version — form numbers and links can change:
- Service page: Paying and receiving child and spousal support — ontario.ca
- Form (Central Forms Repository): Request to Withdraw Consent — 004-9973
What this form is about
Form 004-9973 is the Request to Withdraw Consent used to withdraw previously provided consent for CRA to share tax information for calculating or recalculating child support — confirm on ontario.ca.
Before you start: what to gather
- Your full legal name and current address.
- Phone number and email address.
- Child support calculation file reference if applicable.
- Date of original consent — prepare with program staff if unsure.
Confirm the current process on ontario.ca.
How my-id.ca makes it faster
- Save it once. Store your your identity and contact details in your my-id.ca profile.
- Keep documents ready. Upload supporting documents to my-id.ca Files so you are not searching at form time.
- Autofill the form. Use the my-id.ca Chrome extension on a web form, or fill a PDF from your saved profile inside my-id.ca.
- Review and submit yourself through the official channel.
Why do it in my-id.ca
Related Ontario forms repeat the same personal details. Captured once in my-id.ca — stored in Canada, with AI on its own servers — every form starts mostly complete.
Frequently asked questions
- What happens after I withdraw consent?
- CRA may no longer share tax information for support calculation — confirm effects on ontario.ca.
- How does my-id.ca help?
- It autofills your name, address, and contact details.
- How does form 004-9972 differ?
- Form 004-9972 authorizes or cancels a representative; 004-9973 withdraws CRA consent.
Fill it once. Reuse it everywhere.
Save your information in my-id.ca once, then autofill this form and the next one — web forms with the Chrome extension, PDFs right in the app. Your data is stored in Canada and AI runs on my-id.ca's own servers, never sent to third-party AI providers.