If you don’t have the cash to buy a home outright, you’ll need a mortgage to make the purchase. Mortgages offer a convenient way to realize your homeownership dreams and allow you to repay the funds you borrow over time. However, the benefits of mortgages come at a cost in the form of interest.
So, before you embark on a search for the perfect home loan, educate yourself on how mortgage interest works, how it’s determined, and how to reduce this expense. You can find this information and more in this comprehensive guide on mortgage costs.
The Importance of Understanding Mortgage Costs
When you take out a mortgage, it’s vital to understand how much it will actually cost you over the loan term. You’re not just repaying the principal to the lender – interest is also in the mix, and the rate you receive could significantly increase your monthly mortgage payments and the total cost of the home loan.
What is Mortgage Interest?
As previously mentioned, you are required to repay not only the principal amount but also the cost of borrowing that money when you take out a mortgage. This is known as mortgage interest and is expressed as a yearly percentage of your loan balance.
Mortgage interest can be fixed or variable. A fixed-rate remains the same the entire loan term, but a variable rate can fluctuate with market conditions. More on this shortly.
How Does Mortgage Interest Work?
During the first several years of a mortgage, you pay more interest than the principal. Over time, as you pay down the outstanding loan balance, the interest portion of your monthly payment decreases. It’s important to note that mortgage interest rates can vary greatly depending on a variety of factors, including your credit score and your loan term.
How is Mortgage Interest Calculated?
Mortgage Interest Payment Example
To illustrate, suppose you have a mortgage with a principal of $200,000 and an annual interest rate of 4.5%.
You’d divide the annual rate by 12 to find the monthly interest rate, as demonstrated below:
- Annual interest rate: 4.5%
- Monthly interest rate: 4.5% / 12 = 0.375%
Next, to calculate your monthly interest payment, you would multiply your remaining loan balance by the monthly interest rate. Here’s what the first month would look like:
- Principal (loan amount): $200,000
- Monthly interest rate: 0.375%
- Monthly interest payment: $200,000 x 0.375% = $750
As you continue to make payments, the portion of your payment that goes towards the principal increases, while the interest portion decreases due to the reduced principal balance.
To get a detailed representation of how these numbers change over time, you would use an amortization table. Here’s what the first few lines of your table might look like, demonstrating the shift from interest to principal over successive payments:
| Payment Number | Principal | Interest | Total Monthly Payment |
| 1 | $1,507.24 | $750.00 | $2,257.24 |
| 2 | $1,512.89 | $744.35 | $2,257.24 |
| 3 | $1,518.56 | $738.76 | $2,257.24 |
Types of Mortgage Interest Rates
You can choose between a fixed-rate or a variable-rate mortgage.
Fixed-Rate Mortgages
A fixed-rate mortgage locks in your interest rate for the duration of your mortgage term – typically 15 or 30 years. This means your monthly payments are predictable, and you’ll know how much to set aside in your spending plan.
Variable-Rate Mortgages
Also known as a variable-rate mortgage, an adjustable-rate mortgage (ARM) comes with a mortgage rate that can change at predetermined intervals. This means your monthly payments can increase or decrease. ARMs usually start with an initial fixed-rate period, followed by annual adjustments. To illustrate, a 5/1 ARM has a fixed interest rate for the first five years, and the rate adjusts once a year once the fixed rate period ends.
Influence of Mortgage Interest on Payments
Mortgage interest affects the price you pay for a home and the monthly mortgage payments.
Effect on Total Cost of Home
When you take a mortgage, the interest rate you’re charged adds to the initial purchase price of your home over the life of the loan. For instance, on a $300,000 home, a 30-year mortgage at a 7.5% fixed interest rate means you would pay $455,152 in interest, bringing the total cost of the loan to $755,152.
Effect on Monthly Payments
The monthly mortgage payments in the example above are $2,097.64. If the rate increases to 8%, you’ll pay $2,201.29 monthly. But if you’re able to snag a rate of 7%, the monthly payment drops to $1,995.91.
Factors That Impact Mortgage Interest Rates
Several factors influence mortgage interest rates and how lenders determine which rate to assess borrowers.
Market Conditions
Factors like inflation and economic growth influence interest rates, as lenders need to ensure they earn a real return on their loans. The state of the bond market also affects mortgage rates. When bond yields rise, mortgage rates often follow.
Type of Interest Rate
As mentioned, your mortgage can have either a fixed or variable interest rate. Fixed rates remain the same throughout the loan period, allowing for consistent payment amounts. In contrast, adjustable rates may change over time, usually in relation to an index, and can often start lower than fixed rates.
Total Loan Amount
The amount borrowed can also affect your rate. Loans that are higher than the conforming loan limits set by government-sponsored enterprises—known as jumbo loans—may carry higher interest rates since they are considered riskier and have a higher chance of default.
Credit Score
Higher credit scores suggest a lower risk to the lender, which can result in lower interest rates on your mortgage. But if your credit score is on the lower end, expect a less favorable interest rate.
Down Payment
The size of your down payment can influence your interest rate. A larger down payment reduces the risk for lenders and can qualify you for lower interest rates. It implies you have more at stake in the property and less money is being borrowed relative to the value of the home.
Loan and Repayment Term
The length of your loan and repayment term affects your interest rate. Shorter-term loans, such as 15 years, usually have lower interest rates than longer-term loans, such as 30 years.
Closing Costs
Closing costs are the fees you pay at the closing of your mortgage, including origination fees, appraisal fees and attorney fees. In some cases, lenders may offer to charge a higher interest rate in exchange for lower upfront closing costs.
How to Reduce Mortgage Interest
Reducing mortgage interest can significantly lower the total cost of your home over time. Below are some tips to help you get a more competitive rate.
Refinancing Your Mortgage
Refinancing can potentially help you score a lower interest rate. Check current rates regularly and compare them to your existing mortgage. If market conditions are favorable or if your credit score has improved since taking out your current loan, refinancing could be a smart financial move.
Making Extra Payments
The interest you pay is based on your principal balance. You can make extra principal-only payments to cut costs. Even one additional payment per year can shave years off your mortgage term and significantly reduce the amount of interest paid.
Negotiating With Your Lender
Sometimes, you can negotiate a better interest rate with your mortgage lender. If you have a good payment history and strong credit, your lender might be willing to lower your rate to earn your business. It’s worth a discussion, especially if you can bring along other loan offers to prove you’re eligible for lower rates elsewhere.
Purchasing Mortgage Points
Mortgage points, also known as discount points, are fees paid upfront to lower your interest rate. One point typically costs 1% of your loan amount and can reduce your rate by 0.25%. For instance, buying points can be a strategic move if you plan to stay in your home long-term, as the interest savings can outweigh the initial cost.
Conclusion: Managing Your Mortgage Interest
Shopping around and securing a competitive mortgage interest can lead to significant savings over the life of your loan. You can also negotiate with the top lenders on your list to see if they’ll adjust their rates to earn your business.
But if you’ve already purchased a home and are looking for ways to lower your rate, keep an eye on interest rates for refinancing opportunities. Also, make additional payments towards the principal when you can.
