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What Inflation Does to a Fixed Retirement Income

Which of your retirement cheques rise with prices, which never move, and what the gap between them looks like after twenty years.

By Nate Sorensen Reviewed for accuracyUpdated Nov 202613 min read

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Some of the money that will pay for your retirement rises with prices, and some of it never moves. Your Canada Pension Plan cheque rises with prices, and so does your Old Age Security. Your workplace pension might. An annuity usually doesn't, and whatever you draw from your own savings has no link to prices at all. At the official 2% inflation target, a payment that never changes buys you about a third less after twenty years. How much of that you'll feel comes down to one number, which is the share of your income that rises with prices against the share that stays where it is.

Key takeaways

Your Canada Pension Plan goes up once a year and your Old Age Security every three months, both against the Consumer Price Index. Neither of your cheques can be cut, and they don't drop when prices do.
Your workplace pension might be indexed, or might not. An annuity stays level unless you bought indexing, and your own savings aren't indexed at all.
At 2% a year, your fixed cheques buy you about 18% less after ten years and about a third less after twenty. That's almost exactly what you'd have seen from 2005 to 2025.
The number to know is the share of your monthly income that's indexed. After twenty years you've lost roughly a third of everything that isn't.

What a 3% inflation number actually means

When you hear that inflation was 3.0% in July 2026, you're hearing one specific comparison. Statistics Canada prices a basket of the things you and everyone else typically buy, from groceries and rent to gas, phone plans and haircuts, and turns it into one number called the Consumer Price Index, or CPI. The inflation rate you hear is how much that index rose against the same month a year earlier. July 2026 came in 3.0% above July 2025.¹ That's the whole meaning of the number you heard. It says nothing about what you'll pay next month.

Two things inside that figure say more about your bills than the headline does. In that same July 2026 print, gasoline was up more than 25% over the year and groceries about 3%, and with gasoline taken out, the rest of the basket was up 2.2%.¹ So the headline is an average of things that moved very differently, and your basket isn't the basket. If you don't drive much, you didn't feel most of that print. If groceries take a big share of what you spend, you felt more than the average said.

The Bank of Canada's target for that yearly number is 2%, the middle of a range from 1% to 3%.² That's where most retirement planning starts. It's a target, not a promise you can bank on. What the basket cost you rose 6.8% in 2022 alone, and about a fifth over the five years to 2025.³

Which parts of your retirement income rise with prices

Your retirement income is really a stack of separate cheques. Each one has its own rule about prices, and the rules don't match, so you've got to take yours one at a time.

Your CPP goes up once a year. The plan takes the average CPI for the twelve months to the end of October, compares it with the year before, and raises what you get by that ratio from the start of the new year. If prices ever fell, the index the plan uses is held at the previous year's level, so your cheque can't go down, whatever prices do.⁴

Your OAS goes up every three months. Your payment is reviewed in January, April, July and October against the CPI. It rises when prices rise and it doesn't fall when they drop, and that floor under your payment is written into both systems. Neither your OAS nor your CPP can be cut because prices went the other way. If you receive the GIS, which is the Guaranteed Income Supplement, it moves on the same quarterly schedule, though what you qualify for is also reset every July from the income you reported for the previous year.⁵

Your workplace pension depends on the plan. Under a defined benefit plan your monthly amount is promised in advance. It may be indexed fully, partly, or not at all. Your pension may get a raise to keep up with living costs as inflation climbs, and the people who run your plan can tell you whether yours does.⁶ Some plans match the CPI. Some pay you a share of it, or cap the increase, or decide year by year. With a defined contribution plan you've got a pot of savings rather than a promise, so what it pays you depends on what your investments earn.

Your annuity is level unless you paid for it not to be. With a life annuity, the insurer pays one fixed sum each month, and keeps paying it until you pass away. You can buy an indexing option that raises your payment automatically each year to keep up with inflation, and you pay for it with a smaller cheque to start.⁷

Your own savings have no link to prices at all. Your RRIF, registered retirement income fund in full, pays you a percentage of the balance you had on January 1, and the percentage climbs with your age, from 5.28% at 71 to 20% at 95.⁸ Nothing in that formula looks at the CPI, or at your grocery bill. Your TFSA, tax-free savings account in full, works the same way, and so does a plain investment account. Whether those dollars keep their buying power depends entirely on what your money earns above inflation while it's invested.

Where the money comes from	Rises with prices?	How often
Canada Pension Plan	Yes	Once a year
Old Age Security and the GIS	Yes	Every three months
Defined benefit workplace pension	Depends on your plan	Set by the plan
Life annuity	Only with an indexing option	Yearly, if you bought it
RRIF, TFSA and other savings	No	Never

One more piece moves with prices, and it's on your side. The federal tax brackets, the income line where your OAS starts to be clawed back, and the age amount you claim from 65 are all raised each year by an indexation factor, and for 2026 that factor is 2.0%.⁹ So your fixed income doesn't drift into a higher bracket just because prices rose. Your fixed income also doesn't get any bigger.

How much does a fixed income lose over twenty years?

At 2% a year, a payment that never changes buys you about 18% less after ten years and about a third less after twenty. That's the arithmetic of the target, applied to your cheque. Prices are 1.486 times higher after twenty years at 2%, so the $1,000 you get divides down to about $673 of what you can buy today. At 3% you're down to about $554. Both figures are illustrative, since nobody knows what you'll actually see over the next twenty years.

Twenty years isn't a worst case for you. Once you're 65 in Canada, your average remaining span is another 21 years.¹⁰ So if your own plan has to hold up that long, you're planning for the typical case and not the long one.

And the last twenty years weren't a model. They were the record. The annual index stood at 107.0 in 2005 and 164.2 in 2025. What cost you $1,000 in 2005 cost you about $1,535 in 2025. Prices went up 53.5%, and that's the same fact as your buying power going down 34.8%, not a second one. A payment fixed at $1,000 through those twenty years ended up buying you about $650 worth of 2005 goods.³ If you were retired on a fixed payment in 2005, that's what happened to you. It works out to about 2.2% a year, close enough to the target that the two paths end within about $20 of each other. That average hides the years you've actually lived through, though. Prices rose 6.8% in 2022 alone, more than three times the target, and about a fifth over the five years to 2025.³

What a $1,000 monthly payment buys, twenty years on

In today's dollars. The flat line is a payment indexed to the CPI. The falling solid line is a fixed payment at 2% inflation, the dashed line at 3%. The marker is what actually happened to a fixed $1,000 from 2005 to 2025.

Source Bank of Canada 2% target (illustrative paths); Statistics Canada, table 18-10-0005-01, annual average CPI 2005 and 2025 (the marker). Arithmetic is ours.

A $4,000 month, twenty years on

Say your retirement income is $4,000 a month, made of round numbers. You get $900 from CPP, $700 from OAS, $1,400 from a workplace pension with no indexing, and $1,000 you draw from your RRIF. These are illustrative figures, not anyone's actual entitlement. Your first two rise with prices, so $1,600 of your $4,000 is indexed. That's 40%.

Run it forward at 2%. Your indexed $1,600 keeps buying what it buys you today, because it grows with the index. Your other $2,400 doesn't. After ten years it buys you what $1,969 buys today, and after twenty, $1,615. Put the two halves back together and your $4,000 a month buys you the equivalent of $3,569 at year ten and $3,215 at year twenty. That's a fall of about 11%, then about 20%, and you never once saw a smaller deposit. Every cheque you got was the same size the whole way through.

The shape of that result is more useful to you than the numbers. Your loss after twenty years is about a third of the income you have that isn't indexed. If only 40% of your income were fixed, you'd be down roughly 13% of your buying power. With 60% fixed, as here, you're down about 20%. If all of it is fixed, you're down a third.

The same $4,000 a month, in today's dollars, at year 10 and year 20

Illustrative, at 2% inflation. The indexed part keeps its full value. The fixed part shrinks to $1,969 at year ten and $1,615 at year twenty. The outlined space is the buying power that's gone.

Source Illustrative. Round figures; the CPP and OAS amounts are placeholders, not published rates. 2% is the Bank of Canada target. Arithmetic is ours.

What decides how hard this hits you

The share of your income that's indexed. If most of what you get is CPP, OAS and an indexed pension, twenty years of inflation is a nuisance to you. If most of it is a level pension, an annuity and your savings, it's the biggest slow loss in your plan. Add up your indexed cheques and divide by your total.
Whether your pension is indexed, and by how much. Full indexing, a share of the CPI, a capped increase and an increase the trustees decide each year are four different pensions you could be holding, all with the same starting cheque. Twenty years apart, the fully indexed one pays you close to half again as much as the level one. Your annual pension statement or the people who run your plan have the rule for yours.
When you start your CPP. Waiting past 65 raises your payment for life, and every later increase for prices is then applied to the larger amount. Since it's the biggest indexed cheque you'll ever have, your start date is really a decision about how much of your income will be indexed. When to start CPP works through the trade, and "The Cheque That Grows If You Wait" is Joanne making that call.
How your savings are invested. Money you keep in a savings account or a ladder of guaranteed investment certificates, or GICs, holds its buying power only if what you earn beats inflation after tax. Money you keep in a mix of stocks and bonds has a better chance of that over twenty years, and a worse one over any single year you pick. Sequence-of-returns risk covers what a bad early year does to your withdrawals.
Whether you receive the GIS. It rises each quarter like your OAS, but it's also reset every July on last year's income, so a larger RRIF withdrawal this year can lower what you get next year.⁵

Your own inflation rate is the other number only you can work out. If you want one closer to your basket than the national figure, there's a free personal inflation calculator where you enter what you spend by category, and it shows you how your own rate compares with the official one.¹¹

If most of your income doesn't move

If most of your income is level, you're among the people who tend to keep part of their savings invested for growth rather than moving all of it to cash, because savings earning less than inflation shrink at the same pace your pension does. If your base is largely indexed, say a public sector pension paid alongside your CPP and OAS, you'll probably worry less about this and more about tax. If you're buying an annuity to cover bills that will be around for thirty years, the smaller indexed cheque is the usual pick, and the level version when it's only topping up an income that's already mostly indexed. And a fair number of people delay CPP with this in mind, so the biggest indexed cheque they'll ever have is as large as it can be. None of these is a rule. Each one follows from knowing what share of your own income moves with prices, and that's a number you can work out this afternoon.

Common questions

Does CPP go up with inflation every year?

Yes. Your CPP rises once a year. The plan compares the average Consumer Price Index for the twelve months to the end of October with the year before, and lifts your payment by that ratio. If that average ever came in lower, your payment just stays put, because the plan holds the index at last year's level. So your cheque can't be cut, and you never watch it fall.

Is OAS indexed to inflation?

Yes, and more often than your CPP. Your Old Age Security is reviewed in January, April, July and October against the CPI. Your payment rises when prices rise, and it doesn't drop when they fall. The Guaranteed Income Supplement follows that same quarterly schedule, so yours moves with it.

Can my CPP or OAS payment ever go down because of inflation?

No. Both are built so your payment never falls when prices fall. Your OAS and GIS can still change, but it's for other reasons. The GIS is reset every July on the income you reported for the previous year, and OAS can be clawed back once your income passes the recovery threshold. That isn't inflation doing it.

How do I find out if my workplace pension is indexed?

It's on your annual pension statement, and your plan administrator or human resources office can confirm it. You're looking for three things. Whether it's indexed at all, whether it tracks the full CPI or a share of it, and whether your increase is guaranteed or decided year by year.

Does my RRIF minimum go up with inflation?

Not because of inflation. Your minimum is a percentage of your January 1 balance, and the percentage rises with your age, from 5.28% at 71 to 20% at 95. Whether the dollars you take out keep their buying power depends on what your account earns. It doesn't depend on the CPI.

Do the tax brackets rise with inflation too?

Yes, and that one goes your way. Every January the federal brackets, the OAS recovery threshold and the age amount you claim at 65 are lifted by an indexation factor, 2.0% for 2026. So your fixed income doesn't creep into a higher bracket just because prices rose, and you keep that credit too.

Sources

Educational, not financial advice. Figures verified against primary sources on the date shown.

See it in a story: "Counting What's Already There," Joanne adds up what a year of retirement actually costs. For the cheques themselves, see your retirement income plan and how RRIF minimums work, or browse the whole retirement hub.

See it in a story

The Cheque That Grows If You Wait — Winding Down

Related guide

When to Start CPP: Taking It Early vs Late