Compare Loan Estimates by focusing on three numbers: the interest rate, the APR (which includes all fees), and Section A (the origination charges). The APR is the true cost comparison tool because it rolls the rate and all lender fees into one number.
Also compare Section J (total closing costs) and Section C (services you can shop for). Ignore Section H (prepaids and escrow), those are the same regardless of lender. Get at least 2-3 Loan Estimates and compare them side by side on the same day.
What Is a Loan Estimate?
The Loan Estimate (LE) is a standardized 3-page document that every lender must provide within 3 business days of your application. It was created by the Consumer Financial Protection Bureau (CFPB) to make mortgage shopping easier and more transparent. Because every lender uses the exact same format, you can put two Loan Estimates side by side and compare the key numbers directly.
The critical sections to compare are on Pages 1 and 2. Page 3 contains disclosures that are largely the same across lenders. Focus your energy on the numbers that actually differ.
Page 1 : The Numbers That Matter Most
Page 1 of the Loan Estimate is where you find the headline numbers. Here is what to look for:
- Interest Rate : Your quoted rate. Compare apples to apples by making sure both quotes use the same lock period (30-day lock vs 60-day lock).
- APR (Annual Percentage Rate) : The interest rate plus all lender fees, points, and certain other costs rolled into one number. This is your single best comparison tool.
- Monthly Principal & Interest : Your base monthly payment before taxes, insurance, and HOA. Useful but does not tell the full cost story.
- Section A: Origination Charges : The lender fees, points, and any credits. This is the upfront cost of getting the loan.
Page 2 : Where the Hidden Costs Hide
Page 2 breaks down the third-party fees and closing costs. This is where lenders can differ significantly:
- Section C: Services You Can Shop For : Title insurance, appraisal, survey, pest inspection. Some lenders mark these up. Compare these line by line.
- Section E: Title Insurance : The owner's policy cost in particular can vary significantly between providers.
- Section F: Services You Can't Shop For : Credit report fee, flood certification, tax service. These should be similar across lenders.
- Section G: Prepaid Items : Property taxes, homeowner's insurance, prepaid interest. Ignore these for comparison, they are the same regardless of lender.
- Section J: Total Closing Costs : The bottom line for upfront costs. Compare this number across lenders.
A tip: some lenders will quote low third-party fees to make their Loan Estimate look better, then the actual invoices at closing come in higher. Ask if these are estimates or guaranteed by the lender.
The APR Comparison Strategy
The APR is the single most powerful tool for comparing loan offers because it includes both the interest rate and most lender fees in one number. Here is a real-world example:
Side-by-Side Comparison on a $300,000 Loan
| Loan Estimate 1 | Loan Estimate 2 | |
|---|---|---|
| Interest Rate | 6.500% | 6.625% |
| APR | 6.750% | 6.700% |
| Origination Charges (Section A) | $2,800 | $1,200 |
| Total Estimated Closing Costs (Section J) | $7,200 | $5,600 |
Loan Estimate 1 has a lower interest rate (6.5% vs 6.625%) but a higher APR (6.75% vs 6.70%) because it has $2,800 in origination charges compared to $1,200. The APR reveals that Loan Estimate 2 is actually the better deal even though its rate appears higher. The APR is the great equalizer.
Red Flags to Watch For
When comparing Loan Estimates, keep an eye out for these warning signs:
- Origination charges over 1% of the loan amount. On a $300,000 loan, that would be anything above $3,000 in Section A. Anything over that needs a good explanation.
- Underwriting or processing fees that differ dramatically. These should be in a similar range between lenders. A big gap signals something unusual.
- Junk fees with vague names. Look out for fees labeled "administration fee," "processing fee," or "document preparation fee" that seem excessive or redundant.
- Rates that seem too good to be true. An unusually low rate is usually paired with high fees, discount points, or restrictive terms. Check if the rate includes paying points upfront.
Timing Matters
All Loan Estimates should be compared on the same day or within 1-2 days. Mortgage rates change daily, sometimes even multiple times a day. If you get a Loan Estimate from one lender on Monday and another on Friday, the rate difference might be due to market movement, not the lender's pricing.
The best approach: apply to 2-3 lenders on the same day, request all Loan Estimates with the same lock period (30-day or 60-day), and compare them side by side as soon as they arrive.