CD Interest Calculator | APY Yield & Maturity Calculator 2026 — Free Online Tool
APY yield & maturity payout.
A $10,000 CD at 5.0% APY compounded daily/monthly for 12 months will mature to $10,511.62 earning $511.62 in total interest.
CD Parameters
🛡️ After-Tax Interest Summary
Net maturity balance after deducting $112.56 in federal/state taxes based on your 22% tax bracket.
📈 Real Purchasing Power (Inflation Adjusted)
The purchasing value of your maturity payout relative to today, factoring in a persistent 2.5% annual inflation rate over your term.
Key CD Rules
- Early Withdrawal Penalty: Withdrawing funds before maturity typically incurs a penalty (e.g. 3 to 12 months of interest).
- Compounding Frequency: Daily compounding earns slightly more than monthly or quarterly compounding over long tenures.
- FDIC Insurance: CDs in the US are FDIC insured up to $250,000 per depositor, per insured bank, making them virtually risk-free.
How to Use This Tool
- Enter your initial principal deposit amount.
- Input the interest rate or APY offered by your bank.
- Choose the maturity term in either months or years.
- Select the compounding frequency (daily, monthly, quarterly, annually).
- Add marginal income tax and inflation estimates to see your true real earnings.
Formula & Specifications
Ending Balance = Principal × (1 + Rate / Frequency) ^ (Frequency × Years)
About CD Interest Calculator | APY Yield & Maturity Calculator
Estimate Certificate of Deposit (CD) interest payout, maturity balances, after-tax yields, and inflation adjustments. Includes daily/monthly compound intervals.
Frequently Asked Questions
What is a Certificate of Deposit (CD)?
A Certificate of Deposit (CD) is a financial savings product offered by banks and credit unions that pays a fixed interest rate in exchange for leaving your money untouched for a set period.
How is CD compounding calculated?
CD interest compounds at fixed intervals (daily, monthly, quarterly, or annually). The formula is A = P(1 + r/n)^(nt), where A is maturity amount, P is principal, r is nominal rate, n is compounding frequency per year, and t is term in years.
What is the difference between Interest Rate and APY?
The nominal interest rate is the base rate without compounding. APY (Annual Percentage Yield) represents the actual interest earned in one year, taking into account the effects of compounding.
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Expert Note
This tool uses the latest international formulas and rates. Results are for estimation purposes. For legal or financial decisions, consult a qualified professional. Built and maintained by the PakDigitalz team.
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