.midfirst-cd-calculator-wrapper {
font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
max-width: 800px;
margin: 0 auto;
background-color: #f9fbfd;
border: 1px solid #e0e6ed;
border-radius: 8px;
padding: 30px;
box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.cd-calc-header {
text-align: center;
margin-bottom: 25px;
color: #004b8d; /* MidFirst-like Blue */
}
.cd-calc-grid {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 20px;
}
@media (max-width: 600px) {
.cd-calc-grid {
grid-template-columns: 1fr;
}
}
.cd-input-group {
margin-bottom: 15px;
}
.cd-input-group label {
display: block;
margin-bottom: 8px;
font-weight: 600;
color: #333;
font-size: 14px;
}
.cd-input-wrapper {
position: relative;
}
.cd-input-wrapper input {
width: 100%;
padding: 12px;
border: 1px solid #ccc;
border-radius: 4px;
font-size: 16px;
box-sizing: border-box; /* Critical for padding */
}
.cd-input-wrapper .currency-symbol,
.cd-input-wrapper .unit-symbol {
position: absolute;
top: 50%;
transform: translateY(-50%);
color: #666;
font-weight: bold;
}
.cd-input-wrapper .currency-symbol {
left: 10px;
}
.cd-input-wrapper .unit-symbol {
right: 10px;
}
.cd-input-wrapper input.has-currency {
padding-left: 25px;
}
.cd-input-wrapper input.has-unit {
padding-right: 35px;
}
.cd-btn-calculate {
grid-column: 1 / -1;
background-color: #004b8d;
color: white;
border: none;
padding: 15px;
font-size: 18px;
font-weight: bold;
border-radius: 4px;
cursor: pointer;
width: 100%;
transition: background 0.3s;
margin-top: 10px;
}
.cd-btn-calculate:hover {
background-color: #003666;
}
.cd-results-section {
margin-top: 30px;
background-color: #ffffff;
border: 1px solid #d1d9e6;
border-radius: 6px;
padding: 20px;
display: none; /* Hidden by default */
}
.cd-result-row {
display: flex;
justify-content: space-between;
align-items: center;
padding: 12px 0;
border-bottom: 1px solid #eee;
}
.cd-result-row:last-child {
border-bottom: none;
}
.cd-result-label {
color: #555;
font-weight: 500;
}
.cd-result-value {
font-size: 20px;
font-weight: 700;
color: #004b8d;
}
.cd-result-value.highlight {
color: #28a745;
font-size: 24px;
}
.cd-error {
color: #dc3545;
text-align: center;
margin-top: 10px;
display: none;
}
Please enter valid numeric values for Deposit, Term, and APY.
Total Interest Earned
$0.00
Estimated Tax Liability
$0.00
Net Earnings (After Tax)
$0.00
Total Balance at Maturity
$0.00
function calculateMidFirstCD() {
// 1. Get Elements by ID
var depositInput = document.getElementById("midfirstDeposit");
var termInput = document.getElementById("midfirstTerm");
var apyInput = document.getElementById("midfirstAPY");
var taxInput = document.getElementById("midfirstTax");
var resultBox = document.getElementById("cdResults");
var errorBox = document.getElementById("cdCalcError");
// 2. Parse Values
var principal = parseFloat(depositInput.value);
var months = parseFloat(termInput.value);
var apy = parseFloat(apyInput.value);
var taxRate = parseFloat(taxInput.value);
// 3. Validation
if (isNaN(principal) || isNaN(months) || isNaN(apy) || principal < 0 || months <= 0 || apy < 0) {
errorBox.style.display = "block";
resultBox.style.display = "none";
return;
}
// Handle optional tax rate
if (isNaN(taxRate)) {
taxRate = 0;
}
// 4. Calculation Logic
// Formula: A = P * (1 + r/n)^(n*t)
// MidFirst and most banks compound daily (n=365) for CDs, though APY reflects the annual yield.
// To be precise with APY input: Future Value = P * (1 + APY/100)^(years)
// Since term is in months, years = months / 12.
var years = months / 12.0;
var rateDecimal = apy / 100.0;
// Using APY formula directly (Standard for consumer inputs)
var finalAmount = principal * Math.pow((1 + rateDecimal), years);
var totalInterest = finalAmount – principal;
var taxLiability = totalInterest * (taxRate / 100.0);
var netEarnings = totalInterest – taxLiability;
// 5. Update UI
errorBox.style.display = "none";
resultBox.style.display = "block";
document.getElementById("resultInterest").innerHTML = "$" + totalInterest.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById("resultTax").innerHTML = "$" + taxLiability.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById("resultNet").innerHTML = "$" + netEarnings.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
document.getElementById("resultBalance").innerHTML = "$" + finalAmount.toLocaleString(undefined, {minimumFractionDigits: 2, maximumFractionDigits: 2});
}
Understanding MidFirst Bank CD Rates
Certificates of Deposit (CDs) offered by institutions like MidFirst Bank provide a secure way to grow your savings with a guaranteed return. Unlike variable-rate savings accounts, a CD locks in an interest rate for a specific period, known as the term. This tool helps you project exactly how much your initial deposit will grow by the time the account reaches maturity.
How to Use This Calculator
To get the most accurate projection of your MidFirst CD earnings, follow these steps:
- Opening Deposit Amount: Enter the total amount of money you plan to invest in the CD. MidFirst Bank typically requires a minimum opening deposit (often $500 or $1,000 depending on the specific CD product).
- Term Length: Input the duration of the CD in months. MidFirst offers various terms, ranging from short-term options like 7 months to long-term strategies up to 60 months.
- Annual Percentage Yield (APY): Enter the advertised APY. This percentage reflects the total amount of interest paid on the account, based on the interest rate and the frequency of compounding.
- Marginal Tax Rate: Interest earned on CDs is generally taxable as income. Enter your federal/state tax bracket to see your net earnings after taxes.
Why APY Matters for Your CD
When comparing MidFirst CD rates, the Annual Percentage Yield (APY) is the critical metric. While the "Interest Rate" represents the simple interest, the APY accounts for compound interest—interest earned on your interest. MidFirst Bank typically compounds interest daily or monthly, which effectively increases your earnings over the life of the CD. The calculator above uses the APY to determine the final maturity value.
MidFirst Bank CD Options
MidFirst Bank typically structures their Time Deposits into several categories:
- Standard CDs: Fixed rates for standard terms (e.g., 6, 12, 24 months).
- Promotional CDs: Often feature higher APYs for specific, non-standard terms (e.g., 7-month or 13-month specials). These are excellent for maximizing short-term growth.
- Jumbo CDs: Designed for larger deposits (usually over $100,000), often carrying different rate structures.
Calculation Example
Let's assume you take advantage of a promotional MidFirst CD offer. If you deposit $10,000 for a 13-month term at an APY of 4.50%:
Using the calculator, you would see that your money grows to approximately $10,490.87 at maturity. This results in a profit of nearly $491 in interest income, assuming you do not withdraw the funds before the maturity date. Early withdrawal penalties may apply if funds are accessed before the term ends.