Tax Tip: What is a Guaranteed Income Supplement (GIS)?


The Guaranteed Income Supplement is a monthly tax-free benefit paid to Old Age Security, or OAS, recipients with low incomes. GIS amounts changes quarterly based on the Consumer Price Index. During October to December 2013, the maximum GIS benefit for a single person was $747.11. As of 2013, the age of eligibility is 65; this will be gradually extended to age 67 between 2023 and 2029. You can apply for GIS benefits when you apply for OAS. If you are already receiving OAS benefits, you can apply for GIS in writing by completing a “Guaranteed Income Supplement or Statement of Income” ISP3025 form to Service Canada.

Key Concepts

  • Guaranteed Income Supplement
  • GIS OAS Canada
  • old age security