How to Compare Loan Estimates: A Line-by-Line Shopping Guide
You've received Loan Estimates from three different lenders. Now what? The forms use identical layouts — required by the CFPB — but comparing them correctly is less obvious than it looks. Looking only at the interest rate misses lender fees. Looking only at the monthly payment ignores closing costs you pay upfront. Looking at APR alone can mislead if you're not staying in the home long enough for it to matter.
This guide walks through the Loan Estimate form section by section, tells you which numbers to compare, which fees are fixed by law, and how to do an apples-to-apples comparison that reveals the truly cheapest loan for your situation.
Understanding the Loan Estimate Form Structure
Every Loan Estimate uses a standardized 3-page form. Lenders must provide it within 3 business days of receiving your application. Here's what each page contains:
- Page 1: Loan terms summary — rate, payment, loan amount, prepayment penalty, balloon payment status
- Page 2: Closing cost breakdown organized into categories. This is where you find the fee comparisons.
- Page 3: Contact info, comparisons tool (APR, total interest percentage, total payments), and other considerations
The 3-Category Fee System
The CFPB's Loan Estimate form divides closing costs into three categories based on how much they can vary between the estimate and actual closing:
Loan Estimate Fee Categories — Which You Can Control
How to Compare Three Loan Estimates Side by Side
Step 1: Ensure All Estimates Use the Same Loan Parameters
For a valid comparison, all Loan Estimates must show the same loan amount, same loan type (30-year fixed, not 30 vs. 15-year), same property address, and the same down payment. If lenders quoted different products, you're comparing different things. Call the outliers and ask for a requote matching the parameters of the other lenders.
Step 2: Compare Section A + B (Lender-Controlled Costs)
On Page 2, add up all charges in:
- Section A: Origination Charges — these are the lender's fees (origination fee, points, processing, underwriting)
- Section B: Services You Cannot Shop — typically appraisal and credit report, which the lender controls
The A + B total is the cleanest measure of what each lender is charging you. The other sections (C, E, F) are roughly equal across lenders for the same property and loan amount. Call this number your "Lender Cost Total."
Step 3: Compare APR Alongside the Interest Rate
The Annual Percentage Rate (APR) folds certain fees into the rate expression to show total loan cost per year. On Page 3 of the Loan Estimate, you'll find "Annual Percentage Rate (APR)" in the Comparisons section. The lender with a lower interest rate but higher fees may actually have a higher APR — meaning more total cost over the loan term.
APR assumes you keep the loan to maturity. If you're likely to sell or refinance within 7 years, a lender with a slightly higher APR but lower upfront fees might actually cost you less. Calculate your personal break-even: total fee difference ÷ monthly payment difference = months to break even. If that's longer than you plan to hold the loan, take the lower fees over the lower rate.
Real Comparison Example — $350,000 Loan, 30-Year Fixed
| Factor | Lender A | Lender B | Lender C |
|---|---|---|---|
| Interest Rate | 6.75% | 6.89% | 6.64% |
| Monthly P&I | $2,270 | $2,306 | $2,243 |
| Section A: Origination | $4,800 | $1,100 | $7,000 |
| Section B: Services | $800 | $750 | $800 |
| Lender Cost Total (A+B) | $5,600 | $1,850 | $7,800 |
| APR | 6.98% | 6.93% | 7.12% |
| Break-even vs Lender B | $3,750 ÷ $36/mo = 104 mo (8.7 yr) | Baseline | $5,950 ÷ $63/mo = 94 mo (7.8 yr) |
Lender C has the lowest rate but highest fees — only worthwhile if you hold the loan 7.8+ years. Lender B costs the most monthly but least upfront — best for short holding periods. Lender A is the worst deal at almost any holding period.
Step 4: Check the Rate Lock Terms
A Loan Estimate is not a binding offer — it's an estimate. But in a volatile rate environment, knowing when and how you can lock your rate matters. Check whether the estimated rate is floating or locked, and for how long. Rate locks of 30, 45, or 60 days are standard; longer locks cost more. Some lenders offer float-down provisions that let you capture a rate drop between lock and closing — worth asking about.
Step 5: Use the "Better Deal" Letter Strategy
Once you have three competing estimates, go back to your preferred lender with the best competing offer and ask: "Can you match or beat this?" Many lenders will reduce origination fees or offer a marginally better rate to win your business. This works especially well if you have strong credit, a large down payment, or a relationship with the bank. The CFPB explicitly encourages this competitive shopping strategy. See the official CFPB Loan Estimate guide for more details on your rights as a borrower.
After selecting your lender, use the HipoCalc mortgage calculator to verify the payment matches your Loan Estimate — then lock your rate and start gathering final documents for underwriting. For a complete list of closing fees you'll see, see our closing costs guide.
Frequently Asked Questions
What is the most important number to compare on a Loan Estimate?
The "Lender Cost Total" (Section A + B) is the best pure measure of what each lender is charging you — separate from third-party costs that are similar across all lenders. APR is the best single number for comparing total loan cost over a full term, but can mislead for shorter holding periods. Compare both: Lender Cost Total for upfront fees and APR for long-term cost.
How many lenders should I get Loan Estimates from?
The CFPB recommends at least three. Their research shows borrowers who compare three or more offers save an average of $1,500. Multiple credit inquiries for a mortgage within 14 days (45 days under newer FICO versions) count as a single inquiry, so shopping multiple lenders has minimal credit score impact.