50/30/20 Rule
Règle 50/30/20 in French
Quick definition
The 50/30/20 rule is a simple budgeting template: 50% of after-tax income goes to needs, 30% to wants, and 20% to savings and extra debt payments. It is a starting point and a sanity check, not a law.
The three buckets
The rule's appeal is that it replaces a thirty-line budget with three questions. Is this something I need to live and work? Is it something I enjoy but could cut? Or is it building my future? Note that the percentages apply to after-tax income, the money that actually lands in your account, never your gross salary.
| Bucket | Share | What goes in |
|---|---|---|
| Needs | 50% | Rent or mortgage, groceries, utilities, insurance, minimum debt payments, commuting |
| Wants | 30% | Restaurants, streaming, travel, hobbies, upgrades beyond the basic version |
| Savings and extra debt | 20% | Emergency fund, TFSA and RRSP contributions, debt payments beyond the minimum |
The honest gray areas
The buckets are fuzzier than they look, and pretending otherwise is how the rule gets abandoned. A car payment is a need if the car gets you to work and a want to the extent you bought more car than the job requires; a reliable used sedan and a new luxury SUV do not belong in the same bucket. Groceries are needs, restaurants are wants, even though both are food. A phone plan is a need; the newest phone every year is a want. The point is not to litigate every dollar but to be honest about which purchases are really lifestyle choices wearing a "need" costume.
One clean split to remember: minimum debt payments are needs, because skipping them has consequences. Anything beyond the minimum counts in the 20%, because it is building your net worth.
The Canadian caveat: when housing eats the plan
In Canada's expensive cities, rent or a mortgage alone can swallow 40% to 50% of take-home pay, which makes the classic split arithmetically impossible without roommates or a move. That does not make the rule useless; it makes it a target to work toward, not a pass/fail test. If your reality is closer to 60/20/20, or even 65/20/15, that is a fine place to start.
The one line to defend is the savings line. Shrink it under pressure if you must, but keep it above zero, because a habit at $50 a month can scale up later; a habit at zero cannot.
Where the 20% goes
In Canada, the natural order is an emergency fund first, then registered accounts: a TFSA, an RRSP, or both depending on your income and goals. The rule itself was popularized by Elizabeth Warren, later a US senator, in the book "All Your Worth", and its durability comes from that same simplicity.
In Canada
For Canadians, "after-tax income" means your pay after income tax, CPP contributions and EI premiums, plus any benefit payments you receive. If your employer deducts pension contributions or group RRSP amounts at source, you are already doing part of the 20% before the money reaches your account, and it is fair to count it. The rule travels well across provinces; only the housing bucket changes character, from comfortable in smaller cities to the whole challenge in Toronto or Vancouver.
Worked example
Amara takes home $4,000 a month. The template says $2,000 for needs, $1,200 for wants, and $800 for savings and extra debt payments. Her rent in a big city is $1,700, so needs come to $2,500 and the template breaks. Instead of quitting, she runs 62/23/15: $2,500 needs, $900 wants, $600 split between her emergency fund and TFSA. Two years later, a raise and a cheaper apartment bring her to 55/25/20, moving toward the target rather than treating the original miss as failure.
Related terms
Reviewed by Alexandre Bernier, CFP®, CIM®, PFP®·Updated August 2026