@Chasingsquirrels hopefully this is correct if its wrong ill try different method for you :
Assuming a fixed-rate mortgage, here's a simplified way to estimate the potential savings:
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*Calculate Remaining Balance after the Lump Sum Payment:*
- Deduct the $50,000 lump sum from the remaining mortgage balance. This gives you the new balance.
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*Calculate Remaining Monthly Payments:*
- Determine the remaining number of monthly payments based on the remaining term of the mortgage.
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*Calculate Interest Paid Without Lump Sum:*
- Using the original interest rate, calculate the total interest paid over the remaining term without the lump sum payment.
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*Calculate Interest Paid With Lump Sum:*
- Using the new remaining balance and the original interest rate, calculate the total interest paid over the remaining term with the lump sum payment.
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*Calculate Savings:*
- Subtract the total interest paid with the lump sum payment from the total interest paid without the lump sum payment. This difference represents your potential savings.
Let's illustrate this with an example. Suppose you have a $200,000 mortgage with a 5% interest rate and a 23-year term. You've paid it for 13 years, and now you want to pay $50,000 and continue the mortgage for an additional 10 years.
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*Calculate Remaining Balance after Lump Sum:*
- Initial Mortgage: $200,000
- Lump Sum Payment: $50,000
- Remaining Balance: $200,000 - $50,000 = $150,000
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*Calculate Remaining Monthly Payments:*
- Original Term: 23 years
- Paid for: 13 years
- Remaining Term: 23 - 13 = 10 years
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*Calculate Interest Paid Without Lump Sum:*
- Using the original mortgage details and the remaining term of 10 years, calculate the total interest paid without the lump sum.
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*Calculate Interest Paid With Lump Sum:*
- Using the new remaining balance ($150,000) and the original interest rate, calculate the total interest paid over the remaining 10 years with the lump sum.
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*Calculate Savings:*
- Subtract the total interest with the lump sum from the total interest without the lump sum. This gives you the potential savings.