What is a HISA and how does it work in Canada?
You keep seeing three letters, HISA, and everyone acts like you already know what they mean. Here is the plain version, with the catches included.
How a HISA works
You deposit money, the institution pays you interest on the balance, and the interest is added to the account. The Financial Consumer Agency of Canada (FCAC) explains that interest is generally added monthly, and that accounts which compound more often grow a little faster.
A HISA is mostly a label for a savings account that pays a better rate than the basic one. There is no single legal definition, so the rate, the rules and the fees are different at each institution.
What to check before you open one
- Is the rate a promotion? FCAC warns that introductory rates are high but temporary, and the rate may drop when the promotion ends.
- Is the rate tiered? Some accounts pay one rate on the first part of the balance and a different rate above it, or pay the better rate only if you keep a minimum balance.
- What do withdrawals cost? Some accounts charge for transfers or limit the free ones.
- Is it CDIC insured? CDIC covers eligible deposits up to $100,000 per insured category at each member institution. Money market funds and HISA mutual funds are not covered. See our CDIC guide.
A worked example you can check
These numbers are illustrative, not real offers. Say you keep $10,000 for a year and we use simple interest to keep the math visible.
| Scenario | Math | Interest |
|---|---|---|
| Basic account at 0.25% | $10,000 x 0.25% | $25 |
| HISA at a steady 2.5% | $10,000 x 2.5% | $250 |
| Promo 4% for 3 months, then 2% for 9 months | $100 + $150 | $250 |
The promo row is the lesson. A 4% headline sounds better than a steady 2.5%, yet over the year it lands on the same $250. If the rate after the promo were 1.5%, the year would earn $100 + $112.50 = $212.50. Always ask what the rate becomes after the promo.
Taxes and where to keep it
Interest in a regular account is taxable income. Inside a TFSA it is not. Read is HISA interest taxable in Canada and TFSA vs HISA to pick the right home for the money.
One more habit worth having: once a quarter, look at the rate you are actually earning and compare it with what you were told when you opened the account. Rates move, and a quick check takes two minutes. If you hold the money at more than one institution, add the balances up so you know your CDIC coverage at each one.
Is a HISA right for you?
It suits money you want to keep safe and reachable, like an emergency fund or savings for a goal within a few years. It is not built to beat inflation over decades, and nobody can promise what a rate will be next year. When you are ready to compare, our HISA comparison guide shows what to line up side by side.
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