How to read your Loan Estimate: 5 numbers that catch an overcharge

The Loan Estimate landed in your inbox — all three pages of it — and your lender said "let us know if you have questions." You had about fourteen. The one you could not quite put into words was the most important one: how do I know if this is a fair deal? Not just whether the rate looks competitive, but whether the fees are reasonable, whether the numbers will change before closing, and whether something on page 2 is hiding a problem that will cost you $2,000 at the table.

Here is what your lender probably did not explain: the Loan Estimate is not "just an estimate" for most of the fees on it. Federal law under TRID (the CFPB's TILA-RESPA Integrated Disclosure rule) categorizes every fee into one of three tolerance buckets. Some fees cannot change at all. Some can change only up to 10%. Only a small category can change freely. Knowing which bucket each fee falls into is how you catch an overcharge before closing — not after.

Five numbers on this document tell the story. Here they are, where to find them, and what to do if they are wrong.

Number 1: Section A — the fee that legally cannot go up

Flip to page 2 of your Loan Estimate. The left column, labeled "Loan Costs," starts with Section A: Origination Charges. This is every fee the lender charges for making the loan: origination points, underwriting fee, application fee, rate lock fee. These are the lender's own charges — not third-party fees.

Under CFPB TRID rules, Section A has zero tolerance. It cannot increase from your Loan Estimate to your Closing Disclosure, period. If your Loan Estimate shows a $1,500 underwriting fee and your Closing Disclosure shows $2,000, your lender must issue a lender credit for the $500 difference. They cannot simply charge more without a valid "changed circumstance" — which is a specific legal term covering things like a significant change in your loan amount, a change in property type, or certain credit events. Your changing your mind about what you want is not a changed circumstance.

Write down the Section A total the day your Loan Estimate arrives. On a $300k purchase, typical Section A totals run $1,500–$4,500 depending on whether the lender is charging origination points. If you are being charged 1 origination point ($3,000 on a $300k loan), that point must appear as a specific line item in Section A. Any increase between LE and CD — even $50 — is worth challenging in writing before you sign the Closing Disclosure.

Number 2: The APR — the one rate that includes everything

Page 1 of the Loan Estimate shows two rates side by side: the Interest Rate and the Annual Percentage Rate (APR). Most buyers look at the interest rate. The APR is the correct number for comparing lenders.

The APR takes the interest rate and adds in all the prepaid finance charges — primarily Section A origination fees — and recalculates the effective annual cost of the loan over its term. A lender charging a 6.48% interest rate with $4,500 in origination fees will show an APR of roughly 6.72% on a $300k loan. A lender with the same 6.48% rate but $1,000 in origination fees will show an APR closer to 6.56%. The second lender is actually cheaper, even though the monthly payment is identical.

When comparing Loan Estimates from multiple lenders, the APR comparison eliminates the rate-versus-fees trade-off in a single number. However, one important limitation: the APR calculation assumes you keep the loan to maturity (30 years). If you plan to sell or refinance within 5–7 years, upfront fees cost more relative to a rate reduction on the remaining balance. In that case, check both the APR and the total Section A charges — a lender with a lower rate and higher fees may be worse for a short-hold buyer even if the APR looks better.

Number 3: Section B total — the 10% tolerance bucket

Below Section A on page 2 is Section B: Services You Cannot Shop For. These are third-party services the lender requires but where the lender selects the provider. Common Section B items include the appraisal fee, credit report fee, flood zone determination, and mortgage insurance application fee.

Section B operates under a 10% aggregate tolerance. The total of all Section B items can increase by no more than 10% from your Loan Estimate to your Closing Disclosure. Not each individual item — the total. So if Section B shows $800 on your LE ($500 appraisal + $200 credit report + $100 flood cert), the maximum Section B total on your CD is $880.

A typical Section B total on a $300k purchase runs $600–$1,500. The 10% tolerance means the maximum additional charge is $60–$150. If your CD shows Section B items totaling more than 10% above the LE, the lender owes you a credit for the excess. Document this clearly: print both the LE and CD pages and compare the totals. Lenders occasionally make errors that go unchallenged simply because most buyers do not check.

Number 4: Section C — the fees you can actually shop

Section C covers Services You Can Shop For: typically title search, title insurance (lender's policy), closing attorney or settlement agent fees, and sometimes pest inspection. These are third-party services you can source yourself rather than using the provider on the lender's list.

If you use the lender's preferred providers (listed in the "Written List of Service Providers" that should accompany your Loan Estimate), Section C has the same zero tolerance as Section A for those specific line items. If you choose your own provider for any Section C service, that fee can vary freely — and you bear the risk if it costs more.

The opportunity: title insurance on a $300k home typically runs $500–$1,200 for the lender's policy depending on the company. Calling one or two other title insurance companies in your state can save $300–$600 without any impact on your interest rate or approval. This is one of the few legitimate ways to reduce closing costs on a transaction where you have already locked your rate. We covered the full structure of closing costs, including which fees are negotiable, in our guide to closing costs on a $400k home.

Number 5: Cash to Close — the number that leaves your bank account

Turn to page 3 of your Loan Estimate. The bottom of the page shows Cash to Close. This is the total amount you need to bring to the closing table: your down payment plus all closing costs, minus any lender credits, seller concessions, or down payment assistance you have arranged.

For a first-time buyer putting 5% down on a $300k home, a rough Cash to Close looks like this:

The Cash to Close on your Closing Disclosure should not increase materially from your Loan Estimate unless something genuinely changed (your rate lock expired, seller concessions were removed, or you made a formal change to the loan structure). If it goes up significantly for reasons you cannot trace to a specific event, request a written explanation itemizing every change. Your lender is required to deliver the Closing Disclosure at least three business days before closing — that window exists specifically to give you time to review it.

The myth: "These fees always change — that's just how it works"

Some lenders will tell you that fee changes between Loan Estimate and Closing Disclosure are normal and expected. That is partially true for prepaid items (prepaid interest, insurance, and escrow deposits can change based on your actual closing date and insurance quotes). It is false for Section A. Section A is a zero-tolerance zone. A lender who tells you the underwriting fee "went up" or a new processing fee "was added" after the LE is describing a CFPB violation, not standard practice.

If you believe your lender has improperly increased Section A fees without a valid changed circumstance, you have options. You can file a complaint with the CFPB at consumerfinance.gov/complaint, or contact your state's financial regulator. More practically: most lenders will issue a credit rather than risk a CFPB inquiry. Cite the TRID zero-tolerance rule by name in writing to your loan officer, and most issues resolve within 24 hours.

How this fits into shopping for the best rate

The Loan Estimate is designed for comparison. Federal law requires every lender to use the same form and the same calculation methodology, so a direct comparison of two Loan Estimates from different lenders on the same day is genuinely apples-to-apples. The APR captures rate-versus-fees in one number. Section A tells you the lender's profit margin on the origination. Section C tells you where you can save by sourcing your own title services.

When you are comparing a bank quote against a mortgage broker quote — which is worth doing given the typical 0.23% wholesale rate advantage we covered in today's companion article — the Loan Estimate comparison is the final step. Same APR? Look at total origination. Same total origination? Look at which provider each is recommending for Section C, and whether you can do better. Same on both? Pick the lender with the better timeline and communication.

Most first-time buyers receive a Loan Estimate, glance at the monthly payment, and assume the rest is fine. The five numbers above — Section A total, APR, Section B total, Section C items (and whether to shop them), and Cash to Close — take about 15 minutes to check against a second lender's quote. Frankly, if you are in contract and have already received a Loan Estimate, these five checks are the highest-ROI 15 minutes left in your home purchase: on a $300k mortgage, they have a documented chance of finding $300–$2,000 in savings before you sign a single page. Run them before you sign the Closing Disclosure, not after.