Size it from your expenses, not your income
The common advice is three to six months. Three to six months of what is the part that gets dropped.
The right base is your essential monthly outflow: housing, utilities, groceries, transport, insurance, minimum debt payments, childcare, prescriptions. Not your gross salary, and not your current spending — the number you would need if you cut everything discretionary tomorrow.
That figure is usually far smaller than people assume, which makes the target far less daunting.
How many months
The multiplier should reflect how long it would take you to replace your income:
- Three months — a stable salaried job in a field with plenty of openings, a second income in the household, no dependants.
- Six months — a single-income household, a specialised role, or dependants.
- Nine to twelve months — self-employed, commission-based, seasonal, or contract work with irregular renewal.
Employment Insurance may cover part of a gap, but it replaces only a fraction of income, is capped, has a waiting period, and does not cover every kind of job loss or every worker. Treat it as a partial offset, not a plan.
Where to keep it
Three requirements, in order:
- Reachable within a couple of business days. Emergencies do not wait for a settlement period.
- Principal that cannot fall. The fund exists for the scenario where markets and your job are both bad at once — which is precisely when they correlate.
- Deposit-insured. Eligible deposits at a CDIC member are protected up to the coverage limit per category per institution. Verify membership; not every high-interest account at every fintech is a CDIC-insured deposit.
In practice that means a high-interest savings account, or a cashable GIC ladder if you want a little more yield and can accept slightly slower access.
A TFSA is a reasonable wrapper for it — the interest is sheltered and withdrawals are unrestricted — as long as you remember that re-contributing withdrawn amounts must wait until January 1 of the following year.
Why a line of credit is not a substitute
A HELOC or line of credit is credit, and credit is granted at the lender's discretion. Limits get reduced, and they get reduced in exactly the conditions that constitute an emergency — a downturn, a job loss, a drop in your home's value.
Borrowing also converts a cash-flow problem into a debt problem while your income is impaired. A line of credit is a useful second layer behind a real fund. It is not the fund.
Getting there
Automate a transfer for the day after payday, to a separate institution from your chequing account. The friction of a second login is doing real work: it is the difference between an emergency fund and a slightly larger current account.
Start with one month. One month of essential expenses in cash converts most genuine emergencies from a crisis into an inconvenience, and it is achievable quickly enough to stay motivating.
What to do with this
- Write down your essential monthly outflow. The real one.
- Pick a multiplier honestly, based on how long a job search would actually take you.
- Open a CDIC-insured high-interest account at a different institution from your everyday bank.
- Automate the transfer, then leave it alone.
Dollar limits and rates in this article change over time. The linked sources are the authoritative versions — check them before acting on anything here.