Reamortize Calculator
If you have paid down a significant portion of your mortgage or received a lump-sum payment, reamortizing your loan can help lower your monthly payments without changing your interest rate. Our Reamortize Calculator on this website allows you to quickly determine your new monthly mortgage payment after reamortization, making financial planning easier and more efficient.
Reamortization is particularly useful for homeowners looking to reduce monthly obligations or optimize cash flow while keeping the original loan term intact.
What Is Reamortization?
Reamortization, also called loan recasting, is the process of recalculating your mortgage payment after making a large principal payment. Unlike refinancing, it keeps your original interest rate and loan term but spreads the remaining balance over the remaining period.
Formula for new payment:
New Payment = Remaining Principal × [r × (1 + r)^n] ÷ [(1 + r)^n − 1]
Where:
- r = monthly interest rate
- n = number of remaining months
Required Inputs for the Reamortize Calculator
The calculator requires only essential inputs:
1. Current Loan Balance
Remaining principal after any lump-sum payments.
2. Annual Interest Rate
Your mortgage interest rate expressed as a percentage.
3. Remaining Term
Months left on your mortgage.
4. Lump-Sum Payment (Optional)
Additional principal payment to reduce the balance.
These inputs ensure accurate recalculation of the monthly mortgage payment.
How to Use the Reamortize Calculator
- Enter your current loan balance.
- Input your annual interest rate.
- Enter remaining loan term in months or years.
- Optionally, include a lump-sum principal payment.
- Click calculate.
- View your new monthly mortgage payment after reamortization.
Practical Example
Suppose:
- Current Balance: $200,000
- Interest Rate: 4% annual
- Remaining Term: 240 months (20 years)
- Lump-Sum Payment: $20,000
Step 1: Remaining principal = $200,000 − $20,000 = $180,000
Step 2: Convert annual interest rate to monthly: 4% ÷ 12 = 0.003333
Step 3: Calculate new payment using amortization formula → approximately $1,091/month
This shows a significant reduction from the original payment, improving monthly cash flow.
Benefits of Using the Reamortize Calculator
- Instantly calculates new payments
- Helps plan lump-sum contributions
- Improves cash flow management
- Reduces financial stress
- Avoids refinancing fees while lowering payments
When to Consider Reamortization
- After receiving a bonus, inheritance, or windfall
- To reduce monthly expenses
- To optimize remaining loan term
- To save on long-term interest without refinancing
- If interest rates are stable and refinancing isn’t advantageous
Tips for Homeowners
- Confirm lender allows reamortization
- Make sure lump-sum payments are applied to principal
- Check if there is a reamortization fee
- Compare savings with potential refinancing
- Use the calculator to plan multiple scenarios
FAQs (20)
- What is reamortization?
Recalculating mortgage payments after a large principal payment. - Does it change interest rate?
No, it keeps your original rate. - Can I reduce my monthly payment?
Yes, by reamortizing after a lump-sum payment. - Does it shorten the loan term?
No, the term stays the same unless specified. - Is this the same as refinancing?
No, refinancing replaces the loan; reamortization recalculates payment. - Can I reamortize multiple times?
Depends on lender policy. - Are there fees?
Some lenders charge a small fee. - Does it save interest?
Yes, a lower principal reduces total interest over time. - Can I use it for fixed-rate mortgages?
Yes. - Can I use it for adjustable-rate mortgages?
Depends on lender, usually yes. - Is this calculator free?
Yes. - Can it handle large lump-sum payments?
Yes, any principal reduction. - Does it affect escrow or insurance?
Not directly, consult your lender. - How often can I reamortize?
Varies by mortgage agreement. - Will it affect credit score?
No, it doesn’t create a new loan. - Can I estimate savings?
Yes, by comparing old vs new payments. - Is it beginner-friendly?
Yes. - Can I use it before making payments?
Yes, for planning purposes. - Does it account for taxes and insurance?
No, only principal and interest. - Is it better than refinancing?
Depends on your financial goals; it avoids closing costs.
Conclusion
The Reamortize Calculator helps homeowners calculate new mortgage payments after a lump-sum principal payment, improving cash flow and reducing financial stress. By keeping your original interest rate and loan term, this tool provides a simple, cost-effective alternative to refinancing. Use it to explore multiple payment scenarios, plan lump-sum contributions, and take control of your mortgage strategy efficiently.