Every lender has to use the same three-page form, so you can compare offers line by line. Compare the total cost over the years you will keep the loan, not just the rate.
By the CalcLedger editorial team · Updated October 2026 · 8 min read · Examples use illustrative rates · How we calculate
Short answer: put your Loan Estimates side by side and compare the interest rate, the upfront loan costs in Section D minus lender credits, and the total cost over the number of years you expect to keep the loan. The cheapest offer is the one with the lowest total, which is not always the lowest rate.
A Loan Estimate is a standard three-page form. Under the federal disclosure rule (Regulation Z, section 1026.19), the lender must deliver or mail it no later than the third business day after it receives your application, and it cannot charge you any fee before you receive it and tell the lender you want to proceed, except a reasonable fee for pulling your credit report. That makes it cheap to collect two or three.
For a fair comparison, ask every lender to quote:
Here is what to read on each page, using the CFPB's sample Loan Estimate for a $162,000, 30-year fixed loan:
| Where | What it shows | CFPB sample |
|---|---|---|
| Page 1: Loan Terms | Interest rate and monthly principal and interest | 3.875%, $761.78 a month |
| Page 1: Projected Payments | Mortgage insurance and escrow on top | $1,050 a month in years 1–7 |
| Page 2: Section A | Origination charges, including points | $1,802 (points $405) |
| Page 2: Sections B and C | Third-party services you cannot / can shop for | $672 and $3,198 |
| Page 2: Section D | Total loan costs (A + B + C) | $5,672 |
| Page 2: Section J | Total closing costs, incl. taxes, prepaids, escrow | $8,054 |
| Page 3: In 5 Years | Total paid and principal paid off in 5 years | $56,582 and $15,773 |
| Page 3: APR and TIP | Cost as a yearly rate; total interest as a % of the loan | 4.274% and 69.45% |
Sections E through H (taxes, prepaid interest and insurance, escrow deposits) depend mostly on the home and your closing date, not on the lender, so they should look similar across offers. Big gaps there usually mean the lenders assumed different closing dates or tax figures, not that one is cheaper.
Say three lenders quote the same $320,000, 30-year fixed loan. These are the default numbers in our mortgage offer comparison calculator:
| Offer A | Offer B | Offer C | |
|---|---|---|---|
| Interest rate | 6.875% | 6.625% | 7.125% |
| Section D loan costs | $5,200 | $8,400 | $4,100 |
| Lender credit | — | — | $2,000 |
| Monthly P&I | $2,102 | $2,049 | $2,156 |
The total cost of each offer is what you pay the lender upfront (Section D minus credits) plus the interest you pay while you keep the loan. Principal is left out because it is your own equity whichever lender you choose. Here is the total at different points (the cheapest in bold):
| Kept | Offer A | Offer B | Offer C |
|---|---|---|---|
| 2 yrs | $48,756 | $50,352 | $47,262 |
| 4 yrs | $91,300 | $91,283 | $91,419 |
| 7 yrs | $152,883 | $150,446 | $155,430 |
| 10 yrs | $211,247 | $206,408 | $216,210 |
Total cost over 7 years
$320,000, 30-year fixed: upfront loan costs after credits + interest
Offer C, with the highest rate but the smallest upfront cost after its $2,000 credit, is the cheapest for the first 46 months. From month 47, just under four years in, the lower-rate offers overtake it, and from month 48 Offer B is the cheapest. Kept 7 years, B costs $150,446, A $152,883 and C $155,430: a $4,984 gap between the best and worst offer.
So the right offer depends on your plans. If you expect to sell, move or refinance within a few years, the offer with low upfront costs or a lender credit usually wins. If you plan to stay, paying more upfront for a lower rate usually pays off. Our guide on whether mortgage points are worth it shows the same break-even logic for points.
A Loan Estimate is an estimate, but the federal disclosure rule (Regulation Z, section 1026.19) limits how much some costs can rise at closing:
| Type of charge | How much it can increase |
|---|---|
| Charges paid to the lender or its affiliates, such as origination charges | Generally not at all (zero tolerance) |
| Third-party services you shop for from the lender's list, and recording fees | Up to 10% in total |
| Prepaid interest, insurance premiums, escrow deposits, services you pick yourself | Can change; must be the best information available |
| Any charge, after a "changed circumstance" | A revised estimate may be issued |
Revised estimates are also allowed if your rate was not locked and the points or lender credits change, or if you tell the lender you want to proceed more than 10 business days after it issued the estimate. That is why a rate lock matters once you have chosen an offer.
According to the Consumer Financial Protection Bureau, "Your best bargaining chip is usually having Loan Estimates from other lenders in hand," and "Often, lenders are willing to match or beat their competitors' offers." A short script works:
The CFPB recommends negotiating over a short timeframe after you have a signed purchase contract, and checking that a new lender can still close on time if you switch.
Copy the loan amount, rate, Section D and lender credits from each Loan Estimate into the mortgage offer comparison calculator and set the years you expect to keep the loan. It shows the payment, upfront cost and total cost of each offer side by side. To see how much cash you need at closing, use the cash to close calculator, and see mortgage closing costs explained for what each fee is.
How do I compare two Loan Estimates?
Check that both are for the same loan amount, term and loan type and were issued around the same day. Then compare the interest rate, Section D (total loan costs) minus lender credits, and the total cost over the years you expect to keep the loan.
What is the most important number on a Loan Estimate?
No single number decides it. The rate drives your monthly payment, and Section D minus lender credits is what you pay the lender upfront. The "In 5 Years" line on page 3 combines both for the first five years.
Is the lowest rate always the best mortgage offer?
No. In our example, a 7.125% offer with a $2,000 lender credit was cheaper than a 6.625% offer for anyone who keeps the loan less than about 4 years, because it costs much less upfront.
How long does a lender have to give me a Loan Estimate?
Under Regulation Z, the lender must deliver or mail it no later than the third business day after it receives your application.
Can a lender charge me for a Loan Estimate?
Before you receive the Loan Estimate and tell the lender you want to proceed, it can charge only a reasonable fee for your credit report.
How many Loan Estimates should I get?
There is no set number, but two or three for the same loan let you see the range of offers and give you something to negotiate with.
The three offers are illustrative examples, not quotes. Your rate and costs depend on your credit, down payment, loan type and the market on the day you apply.
Rules, limits and program details are checked against these official sources. Example numbers are calculated by CalcLedger with the formulas on our how we calculate page. Read our editorial policy.