How to appeal an Old Age Security decision

The form ISP-3134 is used to request a review of the decision on your application for Old Age Security Programs, this includes Old Age Security, Guaranteed Income Supplement (GIS), Allowance/Allowance for the Survivor (ALW/ALWS). This form does not apply to Canada Pension program.

A few reminders:

  1. Ensure to write down your SIN or your Client Identification Number on every pages of the form.
  2. Sign the Declaration in section 5.
  3.  Please do not send the original copy. Ensure all photocopies are certified before submitting.
  4.  You have 90 days from the date you received the decision letter from the pension processing office to file your request for reconsideration. If your submission is late, you may request an extension and provide an explanation of why you are requesting a longer period.

Once you have completed the form, you may mail it directly to the pension office (addresses below) or drop it off at your nearby Service Canada centre.

How to appeal an Old Age Security decision

NEWFOUNDLAND AND LABRADOR
Service Canada
PO Box 9430 Station A
St. John’s NL A1A 2Y5
CANADA

PRINCE EDWARD ISLAND
Service Canada
PO Box 8000 Station Central
Charlottetown PE C1A 8K1
CANADA

NOVA SCOTIA
Service Canada
PO Box 1687 Station Central
Halifax NS B3J 3J4
CANADA

NEW BRUNSWICK
Service Canada
PO Box 250 Station A
Fredericton NB E3B 4Z6
CANADA

QUEBEC
Service Canada
PO Box 1816 Station Terminus
Quebec QC G1K 7L5
CANADA

ONTARIO
For postal codes beginning with “L, M or N”
Service Canada
PO Box 5100 Station D
Scarborough ON M1R 5C8
CANADA

ONTARIO
For postal codes beginning with “K or P”
Service Canada
PO Box 2013 Station Main
Timmins ON P4N 8C8
CANADA

MANITOBA AND SASKATCHEWAN
Service Canada
PO Box 818 Station Main
Winnipeg MB R3C 2N4
CANADA

ALBERTA/NORTHWEST TERRITORIES AND NUNAVUT
Service Canada
PO Box 2710 Station Main
Edmonton AB T5J 2G4
CANADA

BRITISH COLUMBIA AND YUKON
Service Canada
PO Box 1177 Station CSC
Victoria BC V8W 2V2
CANADA

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If you want to learn more about the new Canada Groceries and Essentials Benefit (CGEB), including who qualifies, how much you could receive, and when payments are issued, visit Tax Service Canada’s Canada Groceries and Essentials Benefit Guide. This comprehensive resource explains the eligibility requirements, payment amounts for individuals and families, application details for new residents, and important CRA payment dates. With the CGEB replacing the GST/HST Credit in July 2026 and providing increased support to millions of Canadians, staying informed can help ensure you receive every benefit you are entitled to.

If you receive the Guaranteed Income Supplement (GIS), now is the time to ensure your benefits continue without interruption. GIS eligibility is reviewed annually, and failing to file your income tax return or complete any required renewal steps could result in your payments being reduced or stopped starting in July 2026. Service Canada uses your most recent income information to determine your eligibility and payment amount for the 2026–2027 benefit year. To avoid delays or disruptions to your monthly GIS payments, review the renewal requirements today. Visit the GIS Renewal page for a complete guide and important updates.

Never miss an Old Age Security payment by bookmarking our dedicated 2026 OAS Payment Schedule page today. Managing your retirement budget is much easier when you know exactly when your funds will arrive in your account. By saving this link, you’ll have instant, one-click access to the most up-to-date distribution dates and any schedule adjustments throughout the year. Stay organized and gain peace of mind by keeping this essential resource right at your fingertips. Bookmark us now and ensure you’re always prepared for your upcoming monthly payments!

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Please be advised that this site is not affiliated with the pension office.
It was created to provide general pension information only.