GIC calculator for Canada

How do you use this GIC calculator?

The calculator works for one GIC or for a ladder of 3, 4 or 5 GICs. Rates are always your own inputs, so use the rate an institution quotes today for the exact term and payout option you are considering.

1. Choose the mode. Pick “One GIC” to size a single deposit, or a 3-, 4- or 5-rung ladder to split a total across terms that mature a year apart.
2. Enter the amount and rate. Type the amount to invest and the annual rate. In ladder mode, enter the rate for each term from 1 year up.
3. Pick the term and interest option. Choose the term and whether interest compounds annually, semi-annually or monthly, or is paid out to you monthly, semi-annually or yearly.
4. Open “Account, tax and inflation”. Pick non-registered, TFSA, or RRSP/FHSA. For a non-registered account, type your own marginal tax rate. In one-GIC mode, adjust the inflation assumption if you want a different one.
5. Read the result. The summary gives the answer first, then the comparison table shows all six interest options on the same numbers, and the year-by-year table shows the interest (and tax) for each year of the GIC. Download the CSV if you want the schedule in a spreadsheet.

What does a GIC earn? A worked example

Take $10,000 in a 3-year GIC at 3.5%, compounded annually, in a non-registered account, for someone with a 30% marginal tax rate and an inflation assumption of 2% a year. These are the calculator’s default inputs, so the result appears as soon as the page loads.

The GIC pays $1,087.18 of interest at maturity. Tax on that interest at the example rate is $326.15, spread over the three years because compound interest is reported as it accrues, leaving $761.03 after tax. Adjusted for inflation, the after-tax amount at maturity is worth about $10,140 in today’s dollars.

Switch the interest option to monthly compounding and the same quoted rate earns $1,105.41, which is $18.23 more. Switch to a paid-out option and the total is $1,050.00, because the interest leaves the GIC instead of compounding. Switch the account type to TFSA and the tax line drops to zero.

How does a GIC ladder work?

A GIC ladder splits one amount equally across several terms so that one GIC matures every year. When a rung matures, it can be reinvested at the longest term, so after one full cycle every rung earns the longer-term rate while money still comes due annually. The step-by-step GIC ladder guide covers setting one up; the calculator does the maths.

Worked example: $25,000 in a 5-rung ladder, compounded annually, with example rates of 3.3%, 3.4%, 3.5%, 3.6% and 3.7% for the 1- to 5-year terms. These are the ladder defaults in the calculator.

Over the first cycle the ladder earns $2,810.22. If every maturing rung is reinvested in a 5-year GIC at the same rate, the ladder is worth about $29,865 after five years. Putting everything in one 5-year GIC would reach $29,980, and renewing 1-year GICs every year at an unchanged rate would reach $29,406. The ladder gives up a little rate against the single 5-year GIC in exchange for money coming due every year, and it spreads out the risk of renewing everything at one bad moment.

How much difference does compounding make on a GIC?

Compounding matters more as the term and rate rise. The table holds the deposit at $10,000 and the quoted rate at 4% and changes only the way interest is credited. Seeing the options side by side shows where the differences come from.

Two things stand out. Over one year, annual compounding and simple interest are identical, so the choice only matters for longer terms or more frequent compounding. And over five years the gap between simple and monthly compounding is $209.97 on this deposit — real money, but smaller than the $596.29 extra that a rate one point higher would add over the same five years with annual compounding. Institutions may quote a different rate for each option, which is why comparing the effective annual yield is fairer than comparing headline rates. The compound interest calculator guide explains the same effect for savings that are topped up over time.

How much can you put in one GIC and stay within CDIC coverage?

CDIC insures eligible deposits at member institutions up to $100,000 per insured category, per depositor, and the limit covers principal and interest together. A compound GIC keeps growing until maturity, so a deposit just under the limit today can finish above it. The table shows the largest deposit whose value at maturity stays within the limit, with annual compounding.

The limit is per insured category, per depositor, at each member institution, and other deposits in the same category count toward it. At EQ Bank, for example, there is one $100,000 limit shared by your individual Personal Account, GICs, US Dollar Account and any other deposits in your name at Equitable Bank; joint deposits are insured separately. So a GIC and a savings balance held in the same name and insured category at the same bank share one limit; a GIC inside a TFSA or RRSP falls in a separate category. The calculator warns when principal plus interest passes the limit; EQ Bank’s CDIC coverage explained walks through how the categories work at one online bank, and CDIC’s own “What’s covered” page lists the categories and eligible products.

How does the calculator do the maths?

Compound GICs. The value at maturity is the principal × (1 + rate ÷ periods per year) raised to the number of full compounding periods. Annual compounding uses one period a year, semi-annual two and monthly twelve. If the term is not a whole number of periods (for example an 18-month GIC that compounds annually), the partial final period earns simple interest on the value already accrued, which is the usual convention for stub periods.

Paid-out GICs. Interest is simple: principal × rate × years. Each payment is principal × rate ÷ payments per year, and the principal is returned at maturity. Because the payments are not reinvested inside the GIC, the effective yield equals the quoted rate.

Effective annual yield. (1 + rate ÷ periods per year) raised to the periods per year, minus 1. It turns any compounding frequency into one comparable yearly figure.

Tax and inflation. In a non-registered account, each year’s interest is multiplied by the marginal rate you type in. The value in today’s dollars divides the after-tax amount at maturity by (1 + inflation) raised to the number of years. The methodology page lists the checks behind every calculator on the site.

Ladder. The total is split equally across the rungs; each rung is a separate GIC. The “after N years” comparison reinvests each maturing rung at the longest-term rate you entered until the last rung matures.

How is GIC interest taxed in Canada?

GIC interest held outside a registered account is taxed as ordinary income at your marginal rate. That makes a GIC less tax-efficient than investments that earn dividends or capital gains, and it is the main reason people hold GICs inside registered accounts.

For multi-year compound GICs in a non-registered account, the CRA’s guidance on line 12100, interest and other investment income explains the annual reporting of accrued interest. The practical effect is that tax is due before the interest is received, which matters for cash flow. If TFSA room is available, how a TFSA shelters interest from tax is worth reading before choosing where the GIC sits, and TFSA vs RRSP covers which account suits which goal.

Common mistakes when comparing GICs

• Comparing headline rates with different compounding. A monthly-compounding GIC and an annual one at the same quoted rate do not earn the same. Compare effective annual yields.
• Treating a paid-out GIC as if it compounds. Monthly interest payments are income, not growth. Unless they are reinvested elsewhere, the total is simple interest.
• Forgetting the interest when checking CDIC coverage. The limit covers principal and interest together, so a deposit close to the limit can finish above it.
• Assuming one limit per GIC. The limit is per insured category at each member institution; a savings balance and a non-registered GIC in the same name at the same bank share it.
• Ignoring tax on accrued interest. In a taxable account, multi-year compound GICs create a tax bill each year before any interest arrives.
• Letting a GIC auto-renew without comparing. Automatic renewal can lock the money in again at the institution’s rate on the day. Check the GIC rates comparison before the maturity date.
• Locking in money that may be needed. Non-redeemable GICs cannot normally be cashed early. An emergency fund usually sits better in a high-interest savings account.

Which type of GIC fits which goal?

This calculator models the first two types. For cashable GICs, enter the cashable rate and read the result as the amount if held to maturity. Market-linked GICs have formulas that differ by product, so read the issuer’s terms. Tangerine’s GIC rates and terms show how one institution lays out these options.

When is it worth talking to a professional?

A calculator handles the arithmetic, not the plan. Consider a fee-only financial planner or a tax professional when the GIC is a large share of your savings, when you are deciding between GICs and other investments for retirement income, when you are near the CDIC limit at several institutions, or when the tax treatment is complicated by RRSP or RRIF withdrawals, income-tested benefits or a spouse’s income. This page is education, not advice, and the numbers above are estimates from the inputs you enter.