Almost every piece of money advice tells you to keep an emergency fund, then leaves you to guess how big it should be. Three months of expenses? Six? A full year? It all depends on your life, but the range is narrower than the guessing makes it feel, and a few simple questions get you to your own number.
What the fund is for
An emergency fund is money set aside for the genuine surprises: the job that ends, the furnace that quits in January, the trip home for a family emergency. It's not for things you know are coming, like Christmas or the tires you've watched wearing down for months. Those are important costs to plan for, but they're predictable ones, and they belong in your regular budget or a separate savings goal.
Keeping that line clear matters, because a fund you raid for predictable spending won't be there when a true emergency hits.
How many months do you need?
The usual starting point is three to six months of essential expenses: rent or mortgage, groceries, utilities, insurance, transportation, and the minimum payments on any debt. It's the number you'd need to keep the lights on and a roof overhead if your income stopped, rather than your usual spending with dining out and travel on top.
So work from your essential costs rather than your take-home pay. If the essentials come to $3,500 a month, three months is around $10,500 and six months is around $21,000. That's a wide gap, and where you land inside it comes down to your situation.
What moves you up or down the range
You'd lean toward the higher end of that range if any of these describe you:
- Your job would be hard to replace quickly, because your field is specialized or hiring is slow.
- You're the only income, or your household leans on one paycheque.
- You have kids or other people who depend on you.
- Your income is variable, or you're self-employed, so your pay isn't the same every month.
- You own your home, so surprise repair bills land on you.
If you're single with no dependents, steady employment, and a roommate splitting the rent, the lower end is probably fine. The more of these that point the other way, the closer to six months, or a bit beyond, makes sense.
Where to keep it
This is short-term money you might need tomorrow, so it follows the same rule as any short-term money, which is that it doesn't get invested. Keep it in a high-interest savings account, separate from your everyday chequing so you're not tempted to dip into it, and somewhere you can reach within a day or two. Safe and accessible beats clever here.
Where you keep it can still make a difference. Online-only banks like Wealthsimple and EQ Bank tend to pay noticeably higher interest than the big banks, where a regular savings account earns next to nothing. On a fund of $10,000, earning around 3% instead of almost nothing works out to roughly $1,600 of interest over five years, just for holding it in a better account. If switching banks or opening another account feels like a hassle, though, don't let it stop you. What matters is that you build the fund, not that you squeeze out every last dollar of interest.
Personally, I enjoy this stuff, so I move my money around to take advantage of higher rates, and I like trying out different platforms so I can point people to what's good right now. Most of my own savings sit in Wealthsimple. I find the platform easy to use, and they're the clearest and quickest to respond when I have a question. Ask me again in a year, though, and my answer might be different.
A high-interest savings account won't make you rich, and it isn't supposed to. Its whole job is to sit there safely until the day something goes wrong.
How to build it without stalling everything else
You don't have to choose between an emergency fund and paying off that 20% credit card. A common approach is to save a smaller starter amount first, say one month of essentials or $1,000, so a minor surprise doesn't send you back to the cards, then throw everything at the high-interest debt, then come back and build the fund up to your full target once the debt is gone.
And once it's at your target, you're done. An emergency fund isn't meant to grow forever. When it's full, the next dollar goes to work somewhere better.
But isn't cash a bad place to keep money?
You read in the first post that cash loses ground to inflation over time, so parking thousands of dollars in a savings account can feel like a mistake. Over decades, it would be. Over the few months an emergency fund covers, the small amount it loses to inflation is cheap insurance, and it buys something cash is uniquely good at, which is being there, in full, exactly when you need it. The alternative, selling investments at a loss or reaching for a credit card in a crisis, costs far more than inflation ever will. This is the one corner of your plan where cash is the right tool.
What's next
With the foundation set, goals clear, cash flow steady, high-interest debt handled, and an emergency fund in place, the next question is where to put the money you invest. Next, we open up the Canadian account toolbox and walk through how the TFSA, RRSP, and FHSA each work and who each one suits. There's more reading at smallbirdfinancial.ca anytime.
This is general financial education, not individual advice. Everyone's situation is different, so for advice specific to you, talk to a qualified professional.
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