How is GIC interest taxed in Ontario?
GIC interest in a non-registered account is taxed as ordinary income at your combined federal and Ontario marginal rate β about 29.65% at $60,000 rising to about 43.41% at $150,000 in these illustrations.
Ontario residents earn GIC interest subject to combined federal and provincial marginal rates of 29.65% at $60,000 income, rising to 43.41% at $150,000. That makes registered wrappers powerful: $50,000 in a 5-year GIC at 4.5% generates about $12,300 in interest over the term β taxed at about 43% in a non-registered account that is roughly $5,289 in tax; in a TFSA the full $12,300 remains yours, subject to contribution room and CRA rules.
Interest is taxed annually at your marginal rate (simplified).
Term
Compare terms at the same rate
Uses your principal, rate, and compounding choice for each term length.
| Term | Maturity | Interest | After-tax total |
|---|---|---|---|
| 1yr | $10,450.00 | $450.00 | $10,315.00 |
| 2yr | $10,920.25 | $920.25 | $10,644.18 |
| 3yr | $11,411.66 | $1,411.66 | $10,988.16 |
| 4yr | $11,925.19 | $1,925.19 | $11,347.63 |
| 5yr | $12,461.82 | $2,461.82 | $11,723.27 |
Maturity value
$11,411.66
Principal vs interest
Educational estimates only. Institutions may compound differently, apply minimums, or use day-count conventions not modeled here. Not financial advice.
Illustration: $50,000 principal, 5-year GIC at 4.5% nominal, ~$12,300 total simple interest over the term. Tax applied once on total interest at stated combined marginal rate (simplified).
| Annual Income | Combined Rate | Tax on interest | After-tax interest | After-tax return |
|---|---|---|---|---|
| $60,000 | 29.65% | $3,647 | $8,653 | 3.17% effective |
| $90,000 | 29.65% | $3,647 | $8,653 | 3.17% effective |
| $120,000 | 37.91% | $4,662 | $7,638 | 2.80% effective |
| $150,000 | 43.41% | $5,339 | $6,961 | 2.55% effective |
Holding the same GIC in a TFSA delivers the full 4.5% β the difference at $150,000 income is 1.86 percentage points of annual return.
Ontario residents can shop Canada's widest GIC shelf: Big Six banks (RBC, TD, BMO, Scotiabank, CIBC, National Bank), large credit unions such as Meridian and Libro, and online banks like EQ Bank and Oaken Financial. Credit unions and online challengers often post higher posted rates than branch specials at major banks. Eligible deposits at CDIC members are insured up to $100,000 per depositor per insured category; always confirm membership and coverage before you buy.
GIC interest in a non-registered account is taxed as ordinary income at your combined federal and Ontario marginal rate β about 29.65% at $60,000 rising to about 43.41% at $150,000 in these illustrations.
If you have TFSA room, a TFSA is almost always better for interest: at $150,000 marginal rate you keep roughly 100% of GIC interest inside the TFSA versus about 56.6% after tax in a non-registered account in this simplified model.
Competitive 1-year GICs often post roughly 4.0%β5.0% depending on institution and term. Online banks such as EQ Bank and Oaken Financial frequently beat Big Six branch specials, but always compare current posted rates.
Eligible deposits at CDIC member institutions are insured up to $100,000 per depositor per insured category. Ontario credit union deposits are covered by FSRA deposit insurance rules (no dollar cap in the same way as CDICβs per-category limit) β confirm coverage with your institution.
Split principal across 1- through 5-year GICs so one rung matures each year for cash flow and reinvestment at then-current rates, while the ladder keeps average duration and rate exposure diversified.
Educational estimates only. Not financial advice.