The 80% Rule for Retirement Income, Explained

The 80% rule is a rough guideline that says you need about 80% of your last working paycheck each year to live comfortably in retirement. It is a starting estimate, not a hard rule set by the IRS or any government. Your true number could be higher or lower depending on your housing, health costs, and how long you plan to live on your savings.

Where the 80% number comes from

Nobody wrote the 80% rule into a law. It grew out of a simple observation made by financial planners decades ago. When you stop working, several big costs shrink or disappear:

• You stop paying for commuting, work clothes, and lunches out near the office.
• You stop putting money into a 401(k) or an RRSP (a tax-sheltered retirement savings account).
• Your employer stops taking payroll taxes (FICA in the US, CPP and EI in Canada) out of your check.
• You may have paid off your house.

The planners figured those savings add up to roughly 20% of a paycheck. So you would "need" the other 80% to cover the same lifestyle. It is a shorthand, not a science. Treat it the same way you treat "save one year of salary for an emergency fund." Useful starting point. Not a promise.

A plain math example

Say you earn $60,000 a year before taxes, a mid-range household income in much of the US and Canada.

Step	What you do	Result
1	Write down your gross annual pay	$60,000
2	Multiply by 0.80	$48,000
3	Divide by 12 months	$4,000 per month

So the 80% rule tells you to plan on about $4,000 a month of retirement income. That number has to cover your food, rent or property tax, insurance, health costs, and anything fun you want to do. If you still carry a mortgage, the number may be too low. If you own your home outright and travel light, it may be more than enough.

Here is the same math at a few other pay levels so you can see the range:

Annual pay	80% of that pay	Monthly target
$40,000	$32,000	about $2,667
$60,000	$48,000	about $4,000
$80,000	$64,000	about $5,333
$100,000	$80,000	about $6,667

These are round, illustrative numbers. They do not account for taxes, inflation, or the exact year you stop working. If you want a number that factors in your actual savings, your projected Social Security or CPP/OAS (the US and Canadian public pensions), taxes, and inflation, our 4% rule guide walks through the fuller math in plain steps.

What the 80% rule leaves out

The rule replaces income with a single fraction. That shortcut hides several things that matter a lot to your actual budget.

Taxes change. While you are working, your employer withholds taxes. In retirement, you still owe federal and state (or provincial) tax on withdrawals from a traditional 401(k), traditional IRA, RRSP, or RRIF (a registered retirement income fund, which is how you draw down an RRSP after you stop working). But you skip the FICA or CPP payroll tax, which saves a chunk. How much you owe depends on your total withdrawals and your bracket, and those brackets change every year. You can check the current ones at irs.gov (US) or canada.ca (Canada). The details matter, so read our guide on how taxes work in retirement before you trust any single rule.

Health costs go up. Medicare (the US public health plan for people 65 and older) and provincial health plans in Canada cover a lot, but not everything. Premiums, deductibles, and out-of-pocket costs tend to rise with age. The 80% rule does not build those in.

Your spending is not a flat line. You might travel hard in your early 60s, then spend less in your 80s. Or you might need in-home care later. A flat 80% does not flex.

Inflation quietly shrinks your dollars. A $4,000 monthly target today will not feel like $4,000 in 20 years. The 80% rule says nothing about adjusting for rising prices.

Benefits start at different ages. Social Security can begin as early as 62, but your full benefit (the amount you earned over a career) is not available until your full retirement age, which is 67 if you were born in 1960 or later. In Canada, CPP can start at 60 and OAS at 65, and both can be deferred for larger checks. For the full timing rules, see when to take Social Security or when to take CPP and OAS. If you stop working at 60 but Social Security does not kick in until 67 (or 66 for earlier birth years), you have a seven-year gap the 80% rule ignores. You would need your savings to cover that gap on top of everything else.

When 80% is too little

Some situations push your real number above 80%:

• You still have a mortgage, car loans, or student-debt payments in retirement.
• You plan to help adult children or grandchildren with housing or tuition.
• You live in a high-cost area and plan to stay there.
• You want to keep contributing to a Roth IRA (a tax-sheltered account where growth is untaxed on withdrawal) or a TFSA (a Tax-Free Savings Account in Canada) because you are still working part-time.
• You retire young and have many years to fund before any public pension starts.

In those cases, 90% or even 100% of working income may be a fairer target. You can plug your own numbers into When Can I Retire, which works out the age you can retire and how ready you are today by counting Social Security or CPP/OAS, pensions, taxes, inflation, and the years before benefits begin. You can upload a statement or just type in your numbers, and it shows every step of the math so you can see exactly where the estimate comes from.

When 80% is more than enough

On the other side, some people find 80% overshoots:

• You paid off your house before retiring.
• You and your spouse both collect Social Security or CPP/OAS, so a large slice of the 80% is already covered by public pensions.
• You plan to relocate to a lower-cost area.
• You never had work-commuting or wardrobe costs to begin with (many remote workers already skip these).

If your public benefits alone cover 60% of your spending, you might only need your savings to bridge the remaining 40%. That changes the whole picture.

A better way to set your number

Instead of reaching for a percentage of your old salary, build a retirement budget from the ground up:

1. List what you will actually spend on each month: housing, food, insurance, health, transport, hobbies, travel, gifts.
2. Subtract your public pension (Social Security, CPP, OAS) and any employer pension or annuity.
3. The leftover is what your savings need to cover.
4. Multiply that leftover by 25 (a rough tie to the 4% rule, which, based on historical market returns, suggests a portfolio can sustain a 4% annual withdrawal for about 30 years).

That four-step process gives you a personalized number. The 80% rule gives you a quick gut-check on whether your savings target looks sane. Use it as a first glance, then refine.

If you want to see how your actual savings stack up against a ground-up budget, how much do you need to retire walks through the full worksheet without jargon.

The 80% rule is not wrong. It is just blunt. As long as you know what it leaves out, it gives you a quick sanity check in about thirty seconds. Your retirement number will always be yours alone, and building it one line at a time is better than trusting any single fraction.