Personal Tax & Benefits:
- CRA Personal Tax Inquiries: 1-800-959-8281
- CRA Benefit Inquiries: 1-800-387-1193
- GST/HST Credit
- Child Benefit
- Child Disbaility Benefits
- Climate Action Incentive
- CRA Dental Benefit: 1-800-715-8836
- CRA Ontario Benefits: 1-877-627-6645
- Making Tax Installments: 1-888-863-8657
Business Inquiries:
- CRA Business Inquiries: 1-800-959-5525
- Reporting Nil Remittance for Payroll: 1-800-959-2256
Service Canada:
- Employment Insurance Inquiries: 1-800-206-7218
- Old Age Security & CPP Inquiries: 1-800-277-9914
Useful links to CRA, Service Canada, and Service Ontario: