To prove your eligibility for the Canadian Dental Care Plan (CDCP), you must provide specific documentation that verifies your residency, income, and tax filing status. The essential documents and information required include:

• Notice of Assessment (NOA): This is the primary document used to verify your adjusted family net income. You can obtain your most recent NOA by logging into your CRA My Account or requesting it by mail from the CRA.
• Social Insurance Number (SIN): A valid SIN is required for all applicants to verify their identity and tax records.
• Proof of Canadian Residency: You must provide valid identification, such as a driver’s license, to confirm your residency for tax purposes.
• Tax Returns: You must have filed your tax returns for the previous year, as the CDCP uses this data to confirm you meet the income thresholds (less than $90,000 adjusted family net income).
• Private Insurance Status: While not a physical document you submit, you must attest that you do not have access to private dental insurance. The government may verify this by reviewing T4 or T4A slips for employer-provided coverage codes.

For families, children under 18 qualify automatically if their parent or guardian meet these criteria, and no separate application or additional documentation is typically required for them.