CD Calculator & GIC Calculator
Calculate maturity value, interest earned, and effective APY for US certificates of deposit and Canadian GICs. Choose your compounding frequency for accurate results.
How to use
Enter your principal (deposit amount)
Set annual rate and term in months
Choose compound frequency (monthly is most common)
View maturity value, interest, and APY instantly
Disclaimer: This tool gives estimates only. Rates and terms are for illustration; use your bank's or broker's actual CD or GIC rate. Not financial or tax advice.
CD Maturity Reference: $10,000 · Monthly Compounding
Maturity value by rate and term — use the calculator above for your exact numbers
| Rate | 6 months | 1 year | 2 years | 5 years |
|---|---|---|---|---|
| 4% | $10,202 | $10,407 | $10,831 | $12,210 |
| 5% | $10,253 | $10,512 | $11,049 | $12,834 |
| 6% | $10,304 | $10,617 | $11,272 | $13,489 |
All values assume $10,000 principal, monthly compounding (12×/year). Maturity value = principal + interest. Enter your own numbers in the calculator above.
How Compounding Frequency Affects Your Return
$10,000 · 5% nominal rate · 1 year — more frequent compounding = higher effective APY
| Frequency | Times/year | Maturity value | Interest earned | Effective APY |
|---|---|---|---|---|
| Annually | 1× | $10,500.00 | $500.00 | 5.00% |
| Semi-annually | 2× | $10,506.25 | $506.25 | 5.06% |
| Quarterly | 4× | $10,509.45 | $509.45 | 5.09% |
| MonthlyMost common | 12× | $10,511.62 | $511.62 | 5.12% |
Monthly compounding earns $11.62 more than annual on a 1-year $10,000 CD at 5%. For multi-year CDs, this difference compounds further. Formula: A = P(1 + r/n)^(nt) — principal P, annual rate r, frequency n, years t.
How CD & GIC Interest Works
The compound interest formula
A = P(1 + r/n)^(nt) — the standard compound interest formula. P is your principal, r is the annual rate as a decimal, n is the compounding frequency per year, and t is the term in years.
The calculator computes this exactly and also shows the Effective Annual Rate (APY): (1 + r/n)^n − 1. This reflects the true yearly yield after compounding — always higher than the nominal rate when compounding more than once per year.
The stated annual rate on your CD or GIC. Divide by compounding periods to get the periodic rate.
The true annual yield after compounding. Monthly 5% nominal = 5.12% APY. Always disclosed on US CDs (Truth in Savings Act).
Principal plus all interest earned over the full term. This is the amount you receive when the CD or GIC matures.
CD vs GIC: What's the Difference?
| Feature | CD (US) | GIC (Canada) |
|---|---|---|
| Full name | Certificate of Deposit | Guaranteed Investment Certificate |
| Insurance | FDIC up to $250K | CDIC up to $100K/category |
| Tax reporting | Form 1099-INT | T5 Statement (Canada) |
| Tax sheltering | Traditional / Roth IRA | RRSP / TFSA |
| Early redemption | Penalty (months of interest) | Often non-redeemable |
| Currency | USD | CAD (or foreign currency) |
Both instruments use the same compound interest formula. This calculator works identically for both.
CD vs High-Yield Savings Account
| Factor | CD | HYSA |
|---|---|---|
| Rate type | Fixed for full term | Variable — can change |
| Liquidity | Locked until maturity | Fully accessible |
| Early exit | Penalty applies | No penalty |
| Typical rate | Higher for longer terms | Competitive for short-term |
| Best for | Money you won't need soon | Emergency fund / short-term |
| FDIC insured | Yes (up to $250K) | Yes (up to $250K) |
Use a CD when you won't need the money for a fixed period. Compare current CD rates vs HYSA rates before committing.
CD Ladder Strategy: Maximize Rate & Liquidity
Stagger maturities to balance higher long-term rates with annual access to cash
| CD rung | Amount | Example rate | Matures | Maturity value |
|---|---|---|---|---|
| 1-year CD | $5,000 | 4.5% | Year 1 | ~$5,230 |
| 2-year CD | $5,000 | 4.7% | Year 2 | ~$5,484 |
| 3-year CD | $5,000 | 4.9% | Year 3 | ~$5,775 |
| 4-year CD | $5,000 | 5.0% | Year 4 | ~$6,078 |
| 5-year CD | $5,000 | 5.1% | Year 5 | ~$6,412 |
Each year one CD matures — reinvest the proceeds into a new 5-year CD to keep the ladder rolling. This locks in higher long-term rates while freeing up cash annually. Rates shown are illustrative examples; use the calculator above to model each rung.
FDIC vs CDIC: Deposit Insurance
FDIC (US CDs)
$250,000 per depositor, per insured bank, per ownership category (single, joint, IRA, trust). Adding a joint owner or using an IRA can effectively double or triple your coverage at one bank. Automatic — no application needed.
CDIC (Canadian GICs)
$100,000 per depositor per deposit category per member institution. There are 9 separately insured categories: deposits in one name, joint, trust, RRSP, RRIF, TFSA, RESP, RDSP, and FHSA (added April 2023) — each with its own $100K limit. GICs must be issued by a CDIC member institution to qualify.
Neither FDIC nor CDIC covers rate risk or inflation risk — only loss due to bank failure.
CD & GIC Tax Treatment
United States
CD interest is taxable ordinary income in the year earned or credited. Banks issue Form 1099-INT for $10+ in interest. Multi-year CDs that credit interest annually are taxable each year. OID CDs require annual reporting even without cash payments.
Tax-sheltered: Traditional IRA CD (tax-deferred growth) · Roth IRA CD (tax-free growth).
Canada
GIC interest is reported on a T5 Statement of Investment Income. The CRA requires you to report interest accrued each investment year — for multi-year non-redeemable GICs, interest is taxable annually, not just at maturity (similar to US OID treatment). TFSA: interest grows and is withdrawn tax-free. RRSP: interest is tax-deferred until withdrawal.
Estimate your tax with our Tax Bracket Calculator.
Early Withdrawal Penalties — What to Expect
Breaking a CD before maturity typically costs several months of interest
| CD term | Typical penalty | Example impact (5% rate) |
|---|---|---|
| 3–6 months | ~1 month of interest | ~$42 on $10,000 |
| 9–12 months | ~3 months of interest | ~$125 on $10,000 |
| 2–3 years | ~6 months of interest | ~$253 on $10,000 |
| 4–5 years | ~12–18 months of interest | ~$500–$750 on $10,000 |
Canadian GICs are often non-redeemable — no early withdrawal at all. Some US banks offer no-penalty CDs with lower rates. Always read your CD agreement. Penalty amounts vary significantly by institution.
Building toward a savings goal?
Use our Compound Interest Calculator to model recurring contributions, or our Savings Goal Calculator to find the monthly deposit needed to reach a target amount.
Frequently Asked Questions
References & Official Sources
CD and GIC rules, insurance limits, and tax treatment from official regulators
Disclaimer: This calculator provides estimates for planning purposes only. It is not financial or tax advice. Actual maturity values, APY, and tax treatment depend on your specific institution, CD agreement, and personal tax situation. Consult a financial or tax professional for guidance specific to your situation.