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Mortgage Rates Going Up Calculator

New Payment Calculation:

\[ New\ M = P \times \frac{new\ r \times (1 + new\ r)^n}{(1 + new\ r)^n - 1} \]

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1. What is the New Payment Calculation?

This calculator determines your new mortgage payment when interest rates increase. It helps homeowners understand how rate changes affect their monthly payments when refinancing or adjusting their mortgage terms.

2. How Does the Calculator Work?

The calculator uses the standard mortgage payment formula:

\[ New\ M = P \times \frac{new\ r \times (1 + new\ r)^n}{(1 + new\ r)^n - 1} \]

Where:

Explanation: The formula calculates the fixed monthly payment required to fully amortize a loan over its remaining term at the new interest rate.

3. Importance of Payment Recalculation

Details: Understanding how rate changes affect payments is crucial for financial planning, especially when considering refinancing options or adjustable-rate mortgages.

4. Using the Calculator

Tips: Enter the principal amount, new monthly interest rate (as a decimal), and remaining term in months. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: How do I convert annual rate to monthly rate?
A: Divide the annual percentage rate by 12 (months) and by 100 (to convert from percentage to decimal).

Q2: What if my loan term changes?
A: Simply adjust the remaining months (n) in the calculation to reflect the new term.

Q3: Does this account for escrow payments?
A: No, this calculates only the principal and interest portion of the payment.

Q4: How accurate is this calculation?
A: This provides the exact mathematical calculation, though actual lender payments may include small rounding differences.

Q5: Can I use this for other types of loans?
A: Yes, this formula works for any fully amortizing fixed-rate loan (car loans, personal loans, etc.).

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