Government of Canada Contact Numbers
- Social Insurance Number
1 800 206 7218 - Canada Pension and Old Age Security
1 800 277 9914 - GIS/Allowance (Guaranteed Income Supplement/Allowance)
1 800 277 9914 - Canada Child Tax Benefit (CCTB)
1 800 387 1193 - GST/HST Credit
1 800 959 1953 - T.I.P.S. (Tax Information Phone Service)
1 800 267 6999 - Individual Income Tax Inquiries
1 800 959 8281

