Mortgage Interest Rate vs. APR: What’s the Difference?

A lower mortgage interest rate doesn’t always mean you’re getting the better deal. Here’s what borrowers should understand before choosing a lender.

When shopping for a mortgage, you’ll typically see two percentages on your Loan Estimate: the interest rate and the Annual Percentage Rate (APR).

These numbers are related, but they measure different things.

Understanding the difference can help you compare mortgage offers more accurately and avoid paying unnecessary upfront costs.

At Oceans Mortgage, we regularly review Loan Estimates from banks, credit unions, mortgage companies, and other lenders. One of the most common things we look at is the relationship between the interest rate, APR, and fees.

Let’s break it down.

1. What Is a Mortgage Interest Rate?

Your mortgage interest rate is the percentage a lender charges you to borrow money.

For a traditional fixed-rate mortgage, the interest rate is used to calculate your monthly principal and interest payment.

For example, consider a $400,000 mortgage with a 30-year fixed term:

Payments are approximate and exclude property taxes, homeowners insurance, mortgage insurance, and other applicable costs.

As you can see, even a small interest rate difference can affect your monthly payment.

But that doesn’t tell you how much you might have to pay upfront to obtain that rate.

That’s where APR becomes useful.

2. What Is APR on a Mortgage?

APR stands for Annual Percentage Rate.

Unlike your interest rate, APR reflects a broader measure of borrowing costs.

It incorporates the interest rate along with certain finance charges, which may include:

• Discount points
• Origination charges
• Certain lender and mortgage-related fees
• Certain mortgage insurance charges

APR expresses these costs as an annualized percentage.

Because it includes certain additional borrowing costs, APR is often higher than the stated interest rate.

However, APR does not include every closing cost, and it doesn’t tell you how much cash you’ll need at closing.

Think of the interest rate as one part of your mortgage’s cost and APR as a broader comparison tool.

3. Why Can Two Lenders Offer the Same Rate but Different APRs?

Let’s say two lenders offer you a $400,000, 30-year fixed-rate mortgage at 6.25%.

Lender A

• Interest rate: 6.25%
• Discount points: $0
• Other lender fees: $1,500

Lender B

• Interest rate: 6.25%
• Discount points: $4,000
• Other lender fees: $2,500

Both loans have the same interest rate and the same principal and interest payment.

But Lender B charges $5,000 more in upfront lender fees.

Assuming the other relevant loan terms and costs are identical, Lender B would generally have the higher APR.

This is one reason you should never compare mortgage offers based on the interest rate alone.

4. Is the Mortgage With the Lowest APR Always Better?

Not necessarily.

APR is a useful comparison tool, particularly when evaluating loans with similar terms and structures.

But APR calculations generally assume you keep the loan according to its scheduled terms.

What if you plan to refinance or sell your home in five years?

A mortgage with a lower APR but substantially higher upfront costs may not necessarily be your most economical choice over that shorter period.

You should also consider:

• How long you expect to keep the mortgage
• Whether you’re paying discount points
• Whether the lender is offering closing cost credits
• Your available cash at closing
• Whether the loan has an adjustable rate or other special features

The right mortgage isn’t always the one with the lowest rate or APR. It’s the one with the most appropriate overall cost and structure for your situation.

5. How Discount Points Affect Interest Rate and APR

Discount points are fees paid upfront to obtain a lower mortgage interest rate.

One discount point equals 1% of your loan amount.

On a $400,000 mortgage, one point costs $4,000.

A lender might offer you a choice between:

Option A: 6.00% with $6,000 in discount points

Option B: 6.25% with no discount points

The lower-rate loan has a smaller monthly principal and interest payment, but it requires more money upfront.

To determine whether paying points makes sense, you need to compare the upfront cost against the monthly savings.

This is commonly called a break-even analysis.

You also need to consider how long you expect to keep the mortgage and whether you could use that upfront money more effectively elsewhere.

6. Where to Find Interest Rate and APR on Your Loan Estimate

Your standard three-page Loan Estimate provides both figures.

Page 1: Interest Rate

Look under Loan Terms for your interest rate. You’ll also find important information about your monthly principal and interest payment.

Page 2: Closing Costs

Review Section A, Origination Charges, for discount points and lender origination fees.

You should also review lender credits and other closing costs.

Page 3: Comparisons

Look for the APR in the Comparisons section.

Page 3 also includes the amount paid in principal, interest, mortgage insurance, and loan costs over the first five years, along with the principal paid off during that period.

These figures can help you compare offers, particularly when the loan terms are similar.

7. How to Compare Two Mortgage Offers Properly

Before choosing a lender, make sure you’re comparing similar offers.

Ideally, the loans should have the same amount, term, program, rate-lock period, and other relevant assumptions.

Also, compare quotes from approximately the same time. Mortgage pricing can change from day to day and sometimes throughout the day.

If one lender quotes a 6.00% rate with substantial points and another quotes 6.25% with minimal upfront fees, don’t assume the lower rate is automatically the better deal.

Compare the payment, upfront charges, APR, lender credits, and expected time you’ll keep the mortgage.

For a more detailed walkthrough, read our guide: How to Compare Two Mortgage Loan Estimates.

Get a Free Second Opinion on Your Mortgage Offer

Already received a Loan Estimate from a bank, credit union, or another mortgage lender?

Before making your final decision, let Oceans Mortgage take a look.

We’ll review your interest rate, APR, discount points, lender fees, lender credits, mortgage insurance, and overall loan structure.

If you already have a great deal, we’ll tell you. If we can do better, we’ll show you.

There’s no cost or obligation to have us review your current offer.

COMPARE MY LOAN ESTIMATE

Upload your Loan Estimate and answer a few quick questions to request your free mortgage review.

Understanding the Fees Behind Your Mortgage Rate

Your interest rate is only part of the cost of a mortgage. Lenders may charge different origination fees, underwriting fees, and discount points, even when offering the same interest rate.

One of the easiest ways to compare these charges is by reviewing Section A of your Loan Estimate.

Learn more in our guide: Mortgage Lender Fees Explained: Which Closing Costs Can You Negotiate?

Oceans Mortgage
Corona Mortgage LLC DBA Oceans Mortgage
NMLS #1558823

This article is for educational purposes only. Illustrative rates and payments are not current loan offers or commitments to lend. Rates, terms, fees, and program availability are subject to change and borrower qualification.