How to Protect Your GIS: A Decision Guide

Question 1: Will GIS actually be part of your retirement, or not?

Everything below only matters if you land in the GIS range. Check that first, because the planning implications are close to opposite depending on the answer.

A single senior receives some GIS with counted income up to $22,800 a year — that is income excluding OAS, so it mostly means CPP plus any pension, RRIF withdrawals, and investment income. A couple where both receive OAS qualifies on combined income under $30,096. Roughly a third of OAS recipients receive some GIS, so this is not a narrow edge case; it is a normal outcome for people who spent their careers in lower-paid or intermittent work.

If your projected income is comfortably above the cut-off, GIS is not your issue and you should be reading about the OAS clawback instead — the opposite problem at the other end of the income scale. If you are anywhere near the range, keep reading, because the decisions below are worth more per dollar than almost anything else in Canadian retirement planning.

Question 2: Which of your income sources is doing the damage?

Not all income is treated equally, and the gaps are large enough to reorganize your finances around.

• Invisible — costs you nothing: TFSA withdrawals, your OAS pension, GIS itself, and the Canada Groceries and Essentials Benefit (which replaced the GST/HST credit in July 2026). A dollar spent from a TFSA has zero effect on your GIS.
• Partly sheltered: employment and self-employment income. The first $5,000 is fully exempt and half of the next $10,000 is exempt, so $15,000 of earnings counts as only $5,000. This is by far the best treatment any income gets.
• Counted in full: CPP, workplace pensions, RRSP and RRIF withdrawals, interest, dividends, taxable capital gains, rental income.

Put plainly: a dollar of wages can cost you nothing, while a dollar of RRIF withdrawal costs you 50 to 75 cents of GIS. If you have both a TFSA and a RRIF and you need $5,000 for a new roof, where you take it from can change your income for the following year by thousands of dollars.

Question 3: Should you still delay CPP to 70?

This is the question where standard retirement advice most often fails GIS recipients, and it deserves real care.

The usual reasoning is sound in isolation: waiting from 65 to 70 raises your CPP by 42%, guaranteed and indexed for life. But CPP counts in full against GIS. For a single person in the 50% band, roughly half of that extra CPP is taken straight back through lost GIS — and in the lower band, three-quarters of it. The guaranteed 42% increase can shrink to an effective gain of 10–20% once GIS is accounted for.

That does not automatically mean take CPP at 60. Two competing considerations:

• Taking CPP early reduces it permanently, by up to 36%. If you live a long time, a small CPP plus GIS may still leave you worse off than a larger CPP would have, because GIS itself is modest.
• There is a middle path: use RRSP or other savings to bridge the years from 60 to 65 or 70, so you spend down assets that would otherwise generate GIS-reducing income later, while CPP grows. Whether this wins depends on how much you have and how long you live.

The honest summary: if GIS will be a meaningful share of your income, the CPP timing decision is genuinely different from what the standard claiming-age guide recommends, and the arithmetic is complicated enough that a Service Canada benefits counsellor — free, and specifically trained on this interaction — is worth an appointment before you decide.

Question 4: Should you empty your RRSP before 65?

For someone heading into GIS territory, this is the highest-stakes decision on the list, and the logic runs opposite to conventional advice.

Money left in an RRSP eventually becomes a RRIF, and RRIF minimum withdrawals are mandatory and count in full against GIS — every year, for the rest of your life. A modest $100,000 RRIF throws off roughly $5,000 a year at 72, which for a single person costs about $2,500 a year in lost GIS on top of the income tax.

Withdrawing that RRSP before you start OAS and GIS — in your early sixties, when your income is low and no GIS is at risk — means paying tax at a low rate once, instead of surrendering 50 to 75 cents on the dollar every year afterwards. Money withdrawn can be moved into a TFSA, where it becomes permanently invisible to the GIS test.

This strategy is not free — you pay real tax to do it, and if you are wrong about your future income you have paid it for nothing. But for someone with a small-to-medium RRSP who will otherwise be on GIS for 25 years, it is frequently the single most valuable move available.

The most common mistake: not filing a tax return

Every year, people lose GIS for a reason that has nothing to do with planning: they didn't file.

GIS is renewed automatically each July based on your filed tax return. No return, no renewal — payments stop, and for someone living on OAS plus GIS, losing $1,000 a month is not an inconvenience, it is a crisis. This most often hits people whose income is so low they assume filing is unnecessary, which is exactly backwards: the lower your income, the more your benefits depend on filing.

Two related points. If your income has just dropped because you retired or a pension ended, you do not have to live with a GIS amount based on last year's higher income — ask Service Canada to reassess using an estimate of your current year. And if a spouse dies, your situation changes from the couple's rate to the single rate, which usually means substantially more GIS; report the change rather than waiting for the system to notice.

A short version, if you want one

Check whether you are actually in the GIS range before doing anything. If you are: spend from a TFSA rather than a RRIF whenever you have the choice, because TFSA money is invisible to the test and RRIF money costs you 50 to 75 cents on the dollar. Consider melting down an RRSP in your early sixties, before OAS and GIS start, so mandatory RRIF withdrawals don't tax you at those rates for the rest of your life. Treat the "always delay CPP to 70" advice with suspicion — it is often wrong for GIS recipients. Take advantage of the $5,000 employment exemption if you can still work. And file your tax return every single year, without exception.

None of this replaces running your own numbers. Use the GIS Calculator →

Official sources

• Canada.ca — Guaranteed Income Supplement
• Canada.ca — GIS: how much you could receive
• Contact Service Canada about OAS and GIS

Related: CPP payment amounts · TFSA contribution room · The OAS clawback