Home Appraisal

A home appraisal is the lender's licensed valuation of the property, ordered to confirm the loan is backed by collateral worth the price. The appraisal gap is the difference between the contract price and the appraised value, and the contingency is the exit.

Tax & Personal FinanceLast reviewed 2026-10-07

What it is

A home appraisal is a licensed appraiser's valuation of a property, ordered by the lender to confirm the collateral is worth the loan. The appraiser walks the property, prices it against comparable sales in the area, and delivers a report with the value, the comparables, and the condition notes. The fee runs $500 to $800 for a typical single-family home, paid by the buyer at closing or upfront.

The appraisal gap is the arithmetic that decides the deal: a contract at $420,000 with an appraisal at $400,000 is a $20,000 gap. The buyer covers it in cash, renegotiates, or walks on the appraisal contingency. Refinances run the same appraisal to confirm the loan-to-value ratio, and the appraisal waiver, where the lender's automated valuation model applies, skips the walk-up entirely.

Key takeaways

The appraisal is the lender's licensed valuation, confirming the collateral backs the loan.
The fee runs $500 to $800 for a typical single-family home, paid by the buyer.
The appraisal gap is contract price minus appraised value, and the contingency is the exit.
A $20,000 gap on a $420,000 contract is cash to cover, a renegotiation, or a walk.
Refinances run the same appraisal; the lender's automated waiver skips it where it applies.

How it works

The machinery runs on comparables. The appraiser inspects the property's size, condition, and upgrades, then prices it against three to six comparable sales within roughly a mile and the last six months. The report delivers the value, the comps, and the adjustments, and the lender reads the loan-to-value ratio against it: a $320,000 loan on a $400,000 appraisal is an 80% LTV, the line where PMI drops.

The gap is the arithmetic that decides the deal. A contract at $420,000 with an appraisal at $400,000 is a $20,000 gap: the buyer brings $20,000 more cash, the seller drops the price, they split it, or the buyer walks on the appraisal contingency and recovers the earnest money. The gap is the market's check on the contract, and the contingency is the exit the contract draws.

The waiver is the modern edge. Lenders run automated valuation models on refinances and some purchases, and where the model supports the price, the appraisal waiver skips the $500 to $800 fee and the walk-up. The refinance LTV is the input the appraisal confirms: a cash-out refinance above 80% LTV needs the appraisal to support it. The appraisal is the lender's check; the waiver is the lender's shortcut.

Why it matters

The appraisal is the third-party check on the largest purchase most Americans make, and the gap is the arithmetic that decides the deal. The fee is small, the stakes are the contract, and the contingency is the exit the buyer draws. The refinance LTV is the other side of the same valuation.

I watched a colleague named Brent (yes, that Brent) waive the appraisal contingency in a bidding war, contract at $460,000, and meet an appraisal at $425,000: a $35,000 gap with no exit. He brought the $35,000 in cash, because the alternative was losing the house and the earnest money. The contingency is the exit, and the waiver was the door he closed.

The highest-leverage thing most buyers can do is keep the appraisal contingency and read the comparables in the report, because the gap is the market's check on the contract. Run the LTV arithmetic with the loan-to-value calculator, price the closing lines in the closing costs entry, and check the affordability with the house affordability calculator.

Real-world examples

The $20,000 gap

A contract at $420,000 appraises at $400,000: a $20,000 gap. The buyer covers it in cash, the seller drops to $400,000, they split the difference at $410,000, or the buyer walks on the appraisal contingency and recovers the earnest money. The appraisal is the market's check on the contract, and the contingency is the exit. The gap is the arithmetic that decides the deal, and the comparables are the evidence it stands on. The fee is $500 to $800; the stakes are the contract.

The bidding-war waiver

Brent waived the appraisal contingency to win a bidding war, contracted at $460,000, and met an appraisal at $425,000: a $35,000 gap with no contractual exit. He brought the $35,000 in cash, because the alternative was losing the house and the $8,000 of earnest money. The contingency is the exit, and the waiver closed the door. The gap is the price of the bidding war. The comparables in the report are the case; the contingency is the exit.

The refinance LTV

A homeowner refinances a $300,000 balance on a home the appraisal supports at $400,000: a 75% loan-to-value ratio, below the 80% line where PMI applies. The appraisal fee was $600, and the automated waiver skipped it on the previous rate-term refinance. The LTV is the input the appraisal confirms, and the cash-out refinance is where it bites. The appraisal is the lender's check on the collateral. The waiver was the shortcut; the walk-up is the check.

Common mistakes

Mistake: Waiving the appraisal contingency in a bidding war.

Why it bites you: The gap becomes cash with no exit: Brent's $35,000 shortfall on a $460,000 contract was the contingency he waived. The exit is the protection the waiver closes.

Mistake: Assuming the appraisal matches the contract price.

Why it bites you: The appraiser prices against comparable sales, not the contract, and the gap is the arithmetic that follows. A $420,000 contract with a $400,000 appraisal is a $20,000 negotiation.

Mistake: Skipping the appraisal on a cash-out refinance.

Why it bites you: The cash-out above 80% loan-to-value needs the appraisal to support it, and the automated waiver rarely applies. The LTV is the input the appraisal confirms.

Mistake: Ignoring the comparables in the report.

Why it bites you: The comps are the evidence the value stands on, and a weak comp set is the appeal. The report is the document; the comparables are the case.

Ivy's take

I spent an afternoon inside three appraisal reports and a gap negotiation so you do not have to, and the appraisal is the third-party check on the contract price: comparables in, value out, and the gap is the arithmetic that decides the deal. Brent waived the contingency in a bidding war and met a $35,000 gap with no exit, which is the cash the waiver cost. Keep the contingency, read the comparables, and price the gap before the contract. The appraisal is the market's check, and the contingency is the exit that makes it binding. The fee is small; the stakes are the contract.

Related jargon, defined

Comparable sales: The nearby recent sales the appraiser prices against; the evidence behind the value.
Appraisal gap: Contract price minus appraised value; the cash, renegotiation, or walk it creates.
Appraisal contingency: The contract clause letting the buyer walk when the appraisal falls short.
Loan-to-value ratio: The loan divided by the appraised value; the 80% line is where PMI drops.
Appraisal waiver: The lender's automated valuation that skips the walk-up where the model applies.
PMI: Private mortgage insurance, required above 80% loan-to-value.

Frequently asked questions

How much does a home appraisal cost?+

$500 to $800 for a typical single-family home, paid by the buyer at closing or upfront. The refinance appraisal runs the same range, and the automated waiver skips it where it applies.

What happens if the appraisal comes in below the purchase price?+

The gap is contract price minus appraised value, and the buyer covers it in cash, renegotiates, splits the difference, or walks on the appraisal contingency. The contingency recovers the earnest money.

Can I appeal a low home appraisal?+

Yes, with a reconsideration of value: new comparable sales, missed upgrades, or errors in the report. The lender submits the case to the appraiser, and the comps are the evidence.

Do I need an appraisal to refinance?+

Most refinances run one to confirm the loan-to-value ratio, though automated waivers skip it where the lender's model applies. The cash-out refinance above 80% LTV needs the appraisal.

What is the difference between an appraisal and an inspection?+

The appraisal prices the property for the lender; the inspection reports its condition for the buyer. Both run before closing, and the inspection contingency is the separate exit.

Disclaimer: This information is general in nature and does not constitute financial or legal advice. Always consult a qualified professional for your specific situation.

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