How to Compare Mortgage Offers Side by Side

What to look at when you have multiple mortgage offers

When you have two or more mortgage offers in hand, the lowest interest rate is not the only number that matters. Lenders quote you an interest rate, but they also charge fees, set different loan terms, and offer different down payment requirements. A loan with a lower rate can cost you more money overall if the fees are higher or the term is longer. You need to see the full picture before you decide.

The document that shows you this picture is called the Loan Estimate. Federal law requires lenders to give you one within three business days of your application. It lists the interest rate, the monthly payment, all fees the lender charges, the loan term (15 years, 30 years, etc.), and the total amount you will pay over the life of the loan. Every lender must format it the same way, which makes comparison straightforward.

Start by getting the Loan Estimate from each lender. Put them side by side. The sections you need to focus on are specific, and the math is simple enough to do with a calculator.

Key Takeaways

• The Loan Estimate from each lender shows the interest rate, monthly payment, all fees, loan term, and total cost — compare these documents, not just the rate.
• Interest rate, loan term, and down payment amount are the three factors that change your monthly payment the most.
• Lender fees vary widely and include origination fees, underwriting fees, and appraisal fees — add them up to see the true cost of each offer.
• The Annual Percentage Rate (APR) on the Loan Estimate includes some fees in a single number, making it easier to compare total cost across offers.
• Lock in your interest rate in writing before closing, and confirm the lock period covers your expected closing date.

Interest rate, term, and down payment — the three drivers of your monthly payment

Your monthly mortgage payment depends on three things: how much you borrow, the interest rate, and how many years you have to pay it back. If one lender offers a lower rate but requires a larger down payment, your monthly payment might be higher because you are borrowing more. If another lender offers a longer term (40 years instead of 30), your monthly payment drops but you pay more interest overall.

Look at the Loan Estimate section labeled "Loan Terms." It will show you the loan amount, the interest rate, and the loan term in years. Calculate what your monthly payment would be under each scenario. Many online calculators let you plug in these three numbers and see the result. The payment shown on the Loan Estimate itself should match this calculation — if it does not, ask the lender why.

A lower rate with a shorter term sounds best, but it also means a higher monthly payment. A higher rate with a longer term lowers your monthly payment but costs you thousands more in interest. There is no objectively correct choice — it depends on your budget and how long you plan to stay in the home.

Add up all the fees each lender is charging

Lender fees are where offers diverge most. The Loan Estimate breaks fees into categories. The main ones are origination fee (what the lender charges to process and underwrite your loan), appraisal fee (the cost to have the property valued), title search and insurance fees (to confirm you own the property and protect the lender), and underwriting and processing fees. Some lenders bundle these differently or charge separate fees for document preparation, credit checks, or flood certification.

Add up every line item under "Loan Costs" on the Loan Estimate. This is your total out-of-pocket cost to the lender at closing. Lenders often advertise a low rate but charge higher fees to make up the difference. A lender with a 0.25% higher rate but $1,500 less in fees might be the better deal if you plan to stay in the home for more than a few years.

Some fees are negotiable. Origination fees and appraisal fees are common places to push back. If one lender's fees are significantly higher, ask if they will reduce them. Some will; some will not. Get the answer in writing on a revised Loan Estimate before you commit.

Use the Annual Percentage Rate to compare total cost

The Annual Percentage Rate (APR) is a single number that combines the interest rate and most of the lender's fees into one figure. It is meant to show you the true yearly cost of borrowing. If one lender quotes a 6.5% interest rate with $3,000 in fees and another quotes 6.75% with $500 in fees, their APRs will be closer to each other than the interest rates suggest.

The APR appears on every Loan Estimate in the same place, making it the fastest way to compare offers at a glance. It is not perfect — it does not include all costs, like property taxes or homeowners insurance — but it is a reliable way to see which lender's total package costs less.

Compare the APR first. If one offer has a significantly lower APR, that lender is likely the better deal overall. If the APRs are within 0.1% or 0.2% of each other, look at the monthly payment and total fees to break the tie.

Confirm what is locked and what can change before closing

The interest rate and APR on your Loan Estimate are only good for a set period — usually 30, 45, or 60 days. This is your rate lock period. If you do not close within that window, the lender can raise your rate. If rates fall during that period, you are stuck with the higher rate you locked in.

Check the Loan Estimate to see the lock period for each offer. A longer lock period (60 days instead of 30) is valuable if you think closing will take time or if you are waiting for an inspection or appraisal. Some lenders charge extra for a longer lock; some do not. Ask whether the lock period is included in the quoted rate or costs extra.

Also confirm which costs are locked and which can change. Most lenders lock the interest rate and APR but reserve the right to adjust property taxes, homeowners insurance, and HOA fees if your estimates were off. Appraisal fees and title insurance costs are usually locked once you sign the Loan Estimate.

Watch for differences in down payment requirements and cash to close

Some lenders require a larger down payment than others, or offer different down payment options. One lender might require 20% down; another might accept 10% or 5%. A smaller down payment means a larger loan amount and a higher monthly payment, but it also means less cash out of your pocket at closing.

The Loan Estimate shows the down payment amount and the total cash you need to bring to closing. This includes the down payment, all lender fees, title insurance, property taxes, and homeowners insurance for the first month or two. If one lender requires significantly more cash at closing, that affects your decision even if the monthly payment is lower.

Ask each lender whether they offer down payment assistance programs, whether they allow gifts from family members to count toward the down payment, and whether they charge extra fees for lower down payments (like mortgage insurance premiums). These details can shift which offer makes sense for your situation.

Compare the same loan type across offers

A fixed-rate 30-year mortgage is not the same product as an adjustable-rate mortgage (ARM) or a 15-year fixed loan. If you are comparing offers, make sure you are looking at the same loan type from each lender. Comparing a 30-year fixed at 6.5% to a 7/1 ARM at 5.8% is not a fair comparison because the ARM rate will rise after seven years.

If you are genuinely considering different loan types — for example, a 15-year fixed versus a 30-year fixed — get Loan Estimates for both from the same lender first. This shows you the real trade-off between payment and total interest cost. Then compare the 30-year offers across lenders and the 15-year offers across lenders separately.

Some lenders specialize in certain loan types or borrower profiles. A lender that excels at FHA loans might charge more for a conventional loan. If you may have access to for multiple loan types, get quotes for each type from at least two lenders to see where you get the best deal.

Create a simple comparison table

Pull the key numbers from each Loan Estimate and put them in a table. Include the lender name, interest rate, APR, loan term, down payment amount, monthly payment (principal and interest only), total lender fees, total cash to close, and rate lock period. This makes it easy to see which offer is lowest in each category and which lender offers the best overall package.

Do not just pick the lowest number in any single column. A lender with the lowest rate might have the highest fees. A lender with the lowest fees might require a larger down payment. Look at the whole picture: the monthly payment you can afford, the total cost over the life of the loan, and the cash you need at closing.

Once you have narrowed it down to your top choice, ask that lender if they will match or beat any terms from the other offers. Some will; some will not. Get any promises in writing on a revised Loan Estimate before you sign anything.

Frequently Asked Questions

Can I lock in a rate before I have a formal offer?

Most lenders will not lock a rate without a completed application and Loan Estimate. Some offer a "rate hold" or "rate reservation" for a short period (usually 3 to 7 days) at no cost, which gives you time to shop. Ask each lender whether they offer this and what it covers.

What if my appraisal comes in lower than the purchase price?

If the home appraises for less than you agreed to pay, your loan amount stays the same but your down payment must increase to make up the difference. Some lenders will renegotiate the rate or fees in this situation; most will not. Ask your lender upfront what happens if the appraisal is low.

Is the monthly payment on the Loan Estimate my actual payment?

The payment shown is principal and interest only. Your actual monthly payment also includes property taxes, homeowners insurance, and possibly mortgage insurance or HOA fees. The Loan Estimate shows an estimate of these costs, but the final amount depends on your actual insurance quotes and tax assessment.

Should I choose the lender with the lowest rate?

Not necessarily. A lender with a 0.25% higher rate but $2,000 less in fees may cost you less money overall, especially if you plan to stay in the home for several years. Compare the APR and total cost, not just the rate.

How long do I have to decide between offers?

Loan Estimates are typically good for 10 business days. Your rate lock is usually 30 to 60 days. If you need more time to decide, ask the lender to extend the lock period in writing. Some will do it for free; some charge a fee.