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When comparing loan estimates, you might see two numbers that seem to describe the same thing: interest rate and APR. They’re not the same. The interest rate is what you pay to borrow the loan amount. APR is the interest rate plus fees and costs associated with the loan.

Let’s look at what these numbers measure, how they often diverge, and why knowing the difference could help your financing strategy.

The interest rate is the percentage charged annually on your loan balance. That’s the number used to calculate the interest portion of your monthly mortgage payment. A lower rate typically means you pay less in interest each month.

With a fixed-rate mortgage, the interest rate stays the same for the life of the loan. With an adjustable-rate mortgage, the interest rate changes after the initial fixed period ends and can fluctuate with the market. In both cases, the interest rate sets what you’ll pay each month.

Take a $300,000 fixed-rate mortgage with a 6% interest rate. You’d pay about $1,500 per month in interest in the first year. That’s the cost of borrowing. That cost typically declines over time as you reduce the principal. However, because most mortgage loans are amortized, early payments tend to go toward paying down interest rather than principal.

Several factors help determine the average home loan interest rate you’ll qualify for. These include your credit profile, down payment size, loan term and type, and market conditions.

While the Federal Reserve doesn’t set mortgage interest rates, the Fed’s federal funds rate generally influences home loan rates.

These costs typically include:

• Origination fees: Charged by your mortgage professional for processing the loan. These typically are between 0.5% and 1% of your total loan amount.
• Discount points: Upfront fees paid in exchange for a lower rate. Each point costs 1% of the loan amount and lowers your interest rate by about 0.25%.
• Select closing costs: Processing, underwriting, and document preparation fees required for finalizing the loan.
• Mortgage insurance: Usually required for conventional loans with less than 20% down.
• Broker fees: Fees associated with mortgage brokerage services.

Under federal law, every mortgage loan estimate must show both the interest rate and APR, giving borrowers two different metrics to evaluate the loan’s cost. On a typical mortgage, the APR is 0.125% to 0.50% higher than the interest rate.

Here’s a common scenario. Two mortgage offers each quote a 6% interest rate, yet one has a higher APR.

Why? Added costs. One loan could carry higher upfront fees, select closing costs, or more expensive mortgage insurance.

It also works the other way. An offer with a 5.7% rate could actually be more expensive than one with 6% if the former has a significantly higher APR.

Which number should you prioritize when comparing offers? While you should pay attention to both the interest rate and APR, the significance of each number depends on your situation.

Focus more closely on the interest rate if:

• You want the lowest possible monthly payment.
• You plan to move or *refinance within a few years.

Focus more closely on the APR if:

• You want to pay lower upfront costs at closing.
• You plan to stay in the home long-term.
• You want a clear view of the total cost over the life of the loan.

One key consideration: APR typically assumes you’ll keep the loan for its full term. If you sell or *refinance earlier, the cost comparison shifts because upfront costs are usually spread out over that full timeline. If you end the loan early, the lower APR might not be the better deal.

When comparing current home interest rates, remember that the lowest advertised number is not necessarily the lowest-cost mortgage for your situation.

These two rates behave differently on different loan types.

With a fixed-rate mortgage, the interest rate stays the same for the life of the loan. The relationship between rate, monthly payment, and APR is easy to evaluate because it stays consistent. Assuming you don’t *refinance or modify your mortgage, your costs are completely predictable.

With an adjustable-rate mortgage (ARM), the interest rate is typically lower for an initial timeframe. After that, the rate adjusts regularly.

An ARM’s APR is calculated using the loan’s current rate and terms, but it can’t account for how your rate may adjust after the initial period ends. This makes APR a less reliable tool for long-term cost comparisons than it is for fixed-rate loans.

The relationship between your base interest rate and APR also shifts significantly when evaluating government-backed mortgage programs.

Loans backed by the FHA and VA have distinct fee and mortgage insurance structures. These include:

• FHA loans have a mandatory upfront mortgage insurance premium that is 1.75% of the loan amount.
• VA loans have a one-time mandatory funding fee ranging from 1.25% to 3.3% of the total loan amount for purchase loans.

*Refinancing Disclaimer: When it comes to refinancing your home loan, you can generally reduce your monthly payment amount. However, your total finance charges may be greater over the life of your loan.