Is It Legal for Lenders to Underestimate a Loan Estimate?

Is it legal for lenders to deliberately underestimate costs on my Loan Estimate? The short answer is no — the Consumer Financial Protection Bureau (CFPB) states plainly that it is illegal for lenders to deliberately underestimate the costs on a Loan Estimate. This article explains which mortgage costs can change before closing, which cannot, what counts as a legitimate change, and what you can do if the numbers move — written for Colorado borrowers, including the many military families buying around Colorado Springs.

The direct answer: deliberate lowballing is illegal

Federal consumer protection law requires the Loan Estimate to be a good-faith disclosure. A lender cannot quote artificially low closing costs to win your business and then raise them at the closing table.

That said, the rules do allow some costs to change under certain circumstances. The key is understanding which costs fall into which category, so you can tell a legitimate revision from a problem.

Before the categories, it helps to know what the form itself is.

What a Loan Estimate is and when you get one

A Loan Estimate is a three-page form you receive after applying for a mortgage. The lender must provide it within three business days of receiving your application.

The form shows the estimated interest rate, the monthly payment, and total closing costs for the loan. It also covers estimated taxes and insurance, whether the rate or payment can change later, and risky features like a prepayment penalty or negative amortization.

All lenders are required to use the same standard form, which makes comparing offers from different lenders straightforward. Receiving a Loan Estimate does not mean the loan is approved yet — it shows the loan terms the lender expects to offer if you move forward.

Because the format is standardized, the cost-change rules below apply the same way at every lender.

Which costs can change before closing — and by how much

The CFPB groups closing costs into three tolerance categories. Some the lender can increase by any amount, some can rise only within a limited federal tolerance, and some cannot increase at all absent a valid change in circumstances.

Category	Examples	Can it increase?
No restriction	Prepaid interest; property insurance premiums; initial escrow deposits; services you shopped for using a provider not on the lender’s written list; third-party services the lender does not require	Yes, by any amount at any time
Limited tolerance	Recording fees; required services where you chose a provider from the lender’s written list	Only within a capped tolerance, unless circumstances change
Zero tolerance	Fees paid to the lender, mortgage broker, or their affiliates for required services; required services you were not allowed to shop for (non-affiliated provider); transfer taxes	No, unless circumstances change

The next three sections walk through each category in plain English.

Costs that can increase by any amount

Some estimated costs are not controlled by the lender at all. Prepaid interest, property insurance premiums, and initial escrow account deposits can increase by any amount at any time.

The same is true for fees for required services when you shopped separately and chose a provider that is not on the lender’s written list, and for third-party services the lender does not require.

Costs that can rise only within a limited tolerance

Recording fees, and fees for required services where you picked a third-party provider from the lender’s written list, sit in a middle category. Without a change in circumstances, the total of these costs cannot increase beyond a limited tolerance set by federal rule — your loan officer can confirm the exact cap.

One wrinkle: if the provider you chose from the list is an affiliate of the lender, that cost cannot change at all.

Costs that cannot increase at all

Absent a change in circumstances, these costs are locked from the moment the Loan Estimate is issued: fees paid to the lender, the mortgage broker, or an affiliate of either for a required service; fees for required services the lender did not let you shop for, when the provider is not affiliated; and transfer taxes.

This zero-tolerance category is the heart of the anti-lowballing rule. A lender cannot understate its own origination charges and quietly correct them on the Closing Disclosure.

What counts as a legitimate change in circumstances

Lenders are allowed to change closing costs without restriction when your situation genuinely changes. The CFPB lists examples such as:

• You decided to get a different kind of loan or changed the amount of the down payment
• The appraisal came in higher or lower than expected
• You took out a new loan or missed a payment, changing your credit
• The lender could not document your overtime, bonus, or other income

When something like this happens, you will likely receive a revised Loan Estimate reflecting the new numbers. A revised estimate tied to a real event is normal — a revised estimate with no explanation deserves questions.

For military borrowers around Fort Carson, Peterson, and Schriever, timing matters here: a PCS move that shifts the closing date past the rate-lock deadline, or income the underwriter cannot document mid-transfer, can trigger a legitimate revision. Ask early so the file is documented before the deadline.

Interest rate movement follows its own rule, covered next.

Can the interest rate itself change?

If the interest rate is not locked, it can change at any time. Even with a rate lock, the rate can change if the application information changes or if you do not close within the rate-lock timeframe.

Check the top of page one of the Loan Estimate to see whether the rate is locked and until when. If you have an adjustable rate, the form includes additional tables showing how the payment can change after closing.

So what happens when costs rise more than the rules allow?

What happens if costs increase beyond the limits

If closing costs increased beyond the allowed limits and there was no valid change in circumstances, you are entitled to a refund of the amount above the allowable limits.

The way to catch this is to compare the Loan Estimate to the Closing Disclosure line by line before closing.

If a zero-tolerance fee grew, or the limited-tolerance category jumped without a documented reason, raise it with the lender in writing before you sign.

How to protect yourself when comparing Loan Estimates

The CFPB recommends requesting multiple Loan Estimates from different lenders for the same kind of loan so you can compare offers side by side.

• Compare origination charges across lenders — it is the total that matters, not how the fees are itemized
• Compare the services you cannot shop for, since the lender chooses those providers
• Actually shop the services you can shop for, using the lender’s written list as a starting point
• Double check that the homeowners insurance and property taxes look accurate — those are set by the insurer and the local government, not the lender, and Colorado county tax figures vary
• Look at whether the loan includes points or lender credits, since either one trades upfront cost against the interest rate on the loan
• Confirm the loan amount, loan type, and the total of the principal and interest payment plus escrow items match what you discussed

Note that a few products work differently: you will not receive a Loan Estimate or Closing Disclosure for a reverse mortgage, a home equity line of credit, or certain subordinate homebuyer-assistance loans. Those use other disclosures, such as Truth-in-Lending forms.

All of this comes straight from the official source, which is worth reading yourself.

Where the official rule lives

The authority here is the Consumer Financial Protection Bureau, the federal agency that implements and enforces consumer financial law. Its Ask CFPB page titled “Can my final mortgage costs increase from what was on my Loan Estimate?” spells out the three categories and the change-in-circumstances rules, and its Loan Estimate Explainer walks through the form field by field.

You can also look up any loan officer by name or NMLS ID in the Nationwide Mortgage Licensing System & Registry database to confirm licensing and check for disciplinary actions.

Your next step

Pull out the Loan Estimate and check three things today: whether the rate is locked and until when, what the lender’s own charges total, and which services you are allowed to shop for. Then compare it against the Closing Disclosure when it arrives.

If something on a Loan Estimate does not match what you were told — or you want a second set of eyes on an offer — talk to a licensed Colorado loan officer at 719 Lending and ask them to walk you through it line by line.

Frequently asked questions

Can my final mortgage costs increase from what was on my Loan Estimate?

Some can, some cannot. Prepaid interest, insurance premiums, and escrow deposits can increase by any amount. Certain fees, like recording fees, can rise only within a limited federal tolerance. Lender and broker fees for required services and transfer taxes cannot increase at all unless there is a valid change in circumstances.

What is a change in circumstances on a mortgage?

A legitimate change in your application, such as switching loan type, changing the down payment, an appraisal coming in higher or lower than expected, new credit events, or income the lender could not document. When one occurs, the lender may issue a revised Loan Estimate with updated costs.

What happens if closing costs go up more than allowed?

If costs increased beyond the allowed limits and there was no valid change in circumstances, the CFPB says you are entitled to a refund of the amount above the allowable limits. Compare the Loan Estimate to the Closing Disclosure before signing to catch it.

How soon do I get a Loan Estimate after applying?

The lender must provide the Loan Estimate within three business days of receiving your application. Receiving it does not mean the loan is approved — it shows the terms the lender expects to offer if you move forward.

Can the interest rate change after I get a Loan Estimate?

Yes, if the rate is not locked it can change at any time. Even a locked rate can change if the application information changes or the loan does not close within the rate-lock timeframe. Page one of the Loan Estimate shows whether the rate is locked and until when.

719 Lending Inc., NMLS #1601989 · Equal Housing Opportunity

719 Lending Inc. is not affiliated with or endorsed by HUD, FHA, VA, USDA, CHFA, the CFPB, or any government agency.

Last updated: September 2026