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Interest Only Mortgage Calculator:

Plan for Low Monthly Payments

See what your monthly or annual payments may be at all stages of an interest-only mortgage.

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How to Use the Interest Only Mortgage Calculator to Maximize Cash Flow

Planning to purchase property can be complex, but our Interest-Only Mortgage Calculator helps simplify the mortgage process. Interest-Only (IO) mortgage loans are Non-QM loan solutions that are designed to help borrowers lower their monthly mortgage payments in the initial years of the loan term. Whether you’re a real estate investor, a self-employed borrower, or homeowner looking for flexible financing, this calculator can provide insights into how interest-only payments can help you reach your financial goals.
Using this calculator helps you estimate your monthly payments for an Interest-Only mortgage during the interest-only period and the rest of the loan term. This helps you strategize for cash flow, savings, and long-term property goals. If you’re considering Debt Service Coverage Ratio (DSCR) loans, explore how they can prioritize rental income over traditional income for better property financing.
Note: Information and interactive calculators are made available to you as self-help tools for your independent use and are not intended to provide borrowing advice. We cannot and do not guarantee their applicability or accuracy in regards to your individual circumstances. All examples are hypothetical and are for illustrative purposes. We encourage you to seek personalized advice from a mortgage specialist.

Use the Interest-Only Mortgage Calculator Step-by-Step

To help you visualize the impact of different loan options, our calculator provides an in-depth breakdown of your payments and loan terms. Here’s how to make the most of it:
1 Enter the Loan Amount: Start by entering the total amount you plan to borrow. Adjusting this figure shows how different mortgage amounts impact your interest-only monthly payments.
2 Choose Your Interest Rate: Input a realistic interest rate to calculate its effect on your monthly payments. Rates play a critical role in determining the overall cost of your mortgage. Even small changes in the interest rate may significantly impact your monthly mortgage payment. If you’re not sure what current Interest-Only mortgage rates are, our team can help! Get in touch with one of our Senior Loan Advisors today.
3 Define Your Loan Term: Select the total mortgage term, including both the interest-only period and interest and principal repayment period. A 40-year mortgage may be ideal for borrowers looking to maximize cash flow early in the loan term.
4 Define the Interest-Only Period: Pick the ideal interest-only phase for your situation. Typical IO periods are the initial 5, 7, or 10 years of the loan term. Because IO mortgages can help you save monthly cash flow during the IO period, it’s important to right interest-only period to help you meet your long term financial goals. Try putting different IO periods into the calculator to model different scenarios and see where you can maximize your monthly cash flow.
5 Calculate Your Results: Once you hit “calculate,” the results provide a clear breakdown of the amortization schedule during the loan term, including:

  • Monthly payments during the interest-only period.
  • Adjustments when principal payments begin.
  • A detailed amortization schedule showing how much of each payment goes toward principal versus interest.

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Benefits of Interest-Only Mortgages

IO mortgages are designed to offer flexibility to borrowers looking to maximize their monthly cash flow. Here are a few reasons why this mortgage might work for you:
  • Lower Initial Payments: Paying only the interest for the initial years of the loan term frees up funds that you can put toward other investments or savings.
  • Future Financial Planning: Putting away additional cash-flow during the interest-only phase can help cushion savings for the principal repayment period or position borrowers who are looking for different loan terms to refinance.
  • Customizable Loan Options: Interest-Only mortgage offer flexible loan terms that may fit your goals better than traditional mortgage options.

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Mortgage Rates and Monthly Payments: Key Considerations

There are a few key factors to consider when looking for a mortgage loan. The relationship between mortgage rates and monthly payments is an important consideration. Interest-Only loans provide homeowners with the opportunity to save money during the initial years of the loan term, freeing up cash-flow that you may be able to invest elsewhere.
Key benefits of the Interest-Only Mortgage structure include:
  • Lower Initial Monthly Payments: May be ideal for borrowers looking to save on monthly mortgage payments, real estate investors, or borrowers who need access to cash flow to pay for other short-term expenses.
  • Flexible Interest-Only Payment Options: Because of the available IO loan term options, borrowers may have more flexibility with their monthly mortgage payments compared to other mortgage options. Understanding your payment installment options can help you develop a financial strategy that fits your needs.

Insights for Choosing the Right Lender

Selecting the right lender for your situation can help you secure more favorable terms. At Newfi, we offer:
  • Competitive interest rates.
  • Flexible loan options for borrower’s unique needs.

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Loan Terms and Repayment Strategies

Understanding your loan terms is a critical part of planning your financial future. A 40-year mortgage with a 10-year interest-only period is a popular option for borrowers looking to lower their monthly mortgage payments over a longer period. During this phase, borrowers only need to pay the interest on the mortgage amount. Once the interest-only period ends, monthly payments will adjust to include the principal repayment as well.
Nicholas S.Princeton, NJ

All the Newfi team was quick to respond and always were available and were in touch during the entire refinance process. They also moved things along quickly.

Wyatt E.Deer Island, OR

Very fast responses, and very knowledgeable, I’ve done business with them twice.

Gokulkrishnan S.Union City, CA

Had a great refinance done with Stephanie for our California Rental Investment Property. Awesome rates, much better than Wells Fargo, Bank of America, etc. Communication and follow-ups were very timely. Super efficient experience, strongly recommend them!

David A.Hilton Head, SC

Efficient process. Good support. Good communications.

Roberto G.Glenside, PA

Getting a mortgage usually takes forever and you want to just quit. This was speedy and super convenient! This was for an investment property and i will be using them again.

Key Actions with the Interest-Only Mortgage Calculator

The Interest-Only Mortgage Calculator also shows borrowers their amortization schedule. This helps illustrate how a borrower’s monthly mortgage payments will change over the loan term. Borrowers can use an amortization schedule to:
  • Plan for Future Payment Increases: See how monthly repayments will change after the interest-only phase ends.
  • Model Refinancing Options: Evaluate whether refinancing your current mortgage to an IO loan can improve your monthly cash flow.
  • Understand the Full Loan Lifecycle: Assess the long-term impact of different mortgage terms and payment structures on your finances.

Understanding Amortization and Long-Term Costs

The amortization schedule generated by the calculator gives a comprehensive breakdown of your loan payments over time. It includes:
  • Interest vs. Principal Allocation: Understand how payments transition during and after the interest-only period.
  • Remaining Loan Balance: See your total mortgage amount decrease as loan payments are made.
  • Total Cost of the Loan: Analyze how changes in interest rates or prepayments affect the total expense of the mortgage.
By integrating the amortization schedule into your mortgage planning, you can make more informed decisions about prepayments, refinancing, or other loan considerations.

Calculation and Repayment Planning

The Interest-Only Mortgage Calculator is an essential tool for visualizing your payments during and beyond the interest-only phase. It provides a detailed view of how payments transition over time, helping you:
  • Prepare for Future Payment Increases: Anticipate changes in monthly payments when the principal repayment period begins.
  • Plan Renovations to Increase Rental Income: Use the interest-only period to invest in rental property upgrades and improvements that can increase your rental revenue.
  • Strategize Refinancing Options: Determine if refinancing your current mortgage can enhance your monthly cash flow.
Many borrowers use the interest-only period to stabilize cash flow, reinvest in their property, or build savings for future expenses. The calculator helps project different scenarios, ensuring you’re prepared for the shift to interest and principal payments.

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Considerations for Optimizing Cash-Flow During the Interest-Only Period

When using the Interest-Only Mortgage Calculator, you’re able to see the monthly and yearly amortization schedules for the entirety of a set loan term. Understanding the breakdown of your monthly mortgage payments helps you better understand your financial situation and plan for the future. Here are a few key considerations to make the most out of your interest-only period:
  • Understand Your Prepayment Options: Explore how prepayments – paying on the principal balance during the interest-only phase – can reduce your mortgage amount and overall long-term costs.
  • Explore Refinancing Scenarios: When looking to refinance your current mortgage terms, ensure that the Interest-Only loan terms available align with your long-term financial goals.
  • Managing Cash Flow: Consider your long-term financial goals, like investing in real estate or making additional prepayments during the IO period, to create a financial. plan and leverage your cash-flow.

Why Choose Newfi?

At Newfi, we are committed to providing innovative solutions that help more people achieve homeownership.  Here are a few of the ways we do that:
Flexible Loan Solutions: From self-employed mortgage solutions to interest-only loan terms, our suite of innovative Non-QM products are designed to meet your unique needs.
Knowledgeable Team: Work with our team of experienced Senior Loan Advisors who can help you explore your mortgage options and help you through the loan process.
Competitive Rates: We pride ourselves on offering competitive interest rates.
Whether you’re an investor, self-employed, or simply seeking flexible financing, Newfi’s solutions are designed to help you achieve your goals.

Maximizing Equity and Exploring Monthly Mortgage Installments

Leverage Equity with Lower Monthly Payments and Reinvest in Your Home

Interest-Only mortgages offer lower monthly mortgage installments, which may leave these borrowers with access to more of their monthly income. Many homeowners consider reinvesting this cash flow back into their homes or investment properties by doing renovations or other home improvements. With this strategy, you can leverage your lower monthly payments by increasing the value of your home and maximizing your home equity.

  • Understand Your Prepayment Options: Explore how prepayments – paying on the principal balance during the interest-only phase – can reduce your mortgage amount and overall long-term costs.
  • Explore Refinancing Scenarios: When looking to refinance your current mortgage terms, ensure that the Interest-Only loan terms available align with your long-term financial goals.
  • Managing Cash Flow: Consider your long-term financial goals, like investing in real estate or making additional prepayments during the IO period, to create a financial. plan and leverage your cash-flow.

Maximizing Equity and Exploring Monthly Mortgage Installments

By visualizing your payments in monthly installments, you can align them with your unique income cycles and long-term financial goals. Our Interest-Only Mortgage Calculator breaks out these installments, helping plan for potential scenarios such as:
  • Adjusting prepayment amounts to reduce the total loan cost.
  • Reassess your financial position as payments shift from interest-only to principal-inclusive phases.

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FAQ: Common Questions About Interest-Only Mortgages

What is an Interest-Only Mortgage?

An interest-only mortgage allows you to pay only the interest payment on your mortgage loan for a set period of time during the initial years of the loan term, resulting in lower monthly payments.

How does the Interest-Only Mortgage Calculator work?

The calculator provides estimates for monthly payments during both the interest-only and principal and interest repayment phases based on your loan amount, loan term, and interest rate.

Can I make prepayments during the Interest-Only period?

Yes, prepayments reduce your principal balance, saving you money on interest and shortening the repayment timeline.

What happens after the Interest-Only period ends?

Your monthly payment will increase as you begin repaying the loan principal. Use the calculator to prepare for this transition.

Is an Interest-Only Mortgage a good fit for me?

Interest-Only loans may be ideal for property investors, self-employed borrowers using alternative income documentation to quality, or those borrowers with high debt-to-income ratios who may be looking for alternative mortgage financing.

Closing Thoughts on Interest-Only Mortgages

Interest-Only Mortgages offers unique benefits for borrowers who are focused on lowering their monthly payments. Using tools like the Interest-Only Mortgage Calculator can help you evaluate various loan scenarios, explore flexible payment structures, and determine the best fit for your financial needs.
Whether you’re interested in managing investment properties, improving monthly cash flow, or securing financing as a self-employed borrower, Newfi offers the tools and support to make your goals a reality.

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