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

APR and interest rate are related, but they answer different questions:

Interest rate: the cost of borrowing expressed as a percentage of the loan balance.
APR: the interest rate plus certain upfront costs (like points and some fees) spread over the life of the loan.

If you’re comparing two offers with different fee structures, APR can help you compare more fairly. If you plan to refinance or sell in a few years, the break-even point and cash-to-close may matter more than APR.

What mortgage APR actually includes

Mortgage APR is designed to translate upfront costs into a single annualized number. Typically, lenders include:

Discount points
Origination fees
Some underwriting/processing fees

Many “costs of owning a home” are not part of APR, like:

Property taxes
Homeowners insurance
HOA dues

To estimate APR with your inputs, use the Mortgage APR Calculator.

When APR is the right comparison metric

APR is most useful when:

You’re comparing loans with different points/fees
The term is the same (e.g., both 30-year fixed)
You expect to keep the loan for a long time

If you plan to move or refinance soon, compare:

Cash to close
Monthly payment
Break-even months (especially for points)

You can compare monthly payments and total interest with the Mortgage Rate Comparison Calculator and estimate points break-even using the Mortgage Points Calculator.

Example: same rate, different points

Let’s say you’re choosing between two 30-year loans:

Loan amount: $350,000
Note rate: 6.25%

Option A: 0 points, $2,000 fees
Option B: 1 point, $2,500 fees

Option B might have a slightly lower rate in real life, but even when rates are similar, upfront fees change your APR. Plug numbers into the Mortgage APR Calculator to see how much higher the APR becomes when more fees are paid upfront.

Practical checklist for comparing lenders

Compare monthly payment using the note rate: Mortgage Payment Calculator
Compare cash to close and upfront costs: Closing Costs Calculator
Compare APR to normalize fees: Mortgage APR Calculator
If paying points, compare break-even: Mortgage Points Calculator

FAQ

Is a lower APR always better?

Not always. A lower APR can come from paying more points upfront. If you sell or refinance before you reach break-even, a higher APR loan with lower upfront costs can be the better deal.

Why is APR higher than the interest rate?

Because APR accounts for upfront finance charges. You’re effectively borrowing “net proceeds” after fees, but repaying based on the full loan amount.

Does APR include mortgage insurance (PMI)?

Typically, no. PMI is usually not included in APR. If PMI applies, model it separately with the PMI Calculator.

Does APR include taxes and homeowners insurance?

No. Taxes and insurance are ongoing housing costs, not finance charges. Estimate them separately (for example with the Property Tax Calculator).

What should I focus on if I’ll refinance soon?

Focus on total cost during the time you expect to keep the loan: upfront costs + monthly payment × months. APR becomes less useful if you won’t keep the loan for most of the term.