What Is a Home Appraisal and How Does It Work in 2026?
If you're buying or selling a home with a mortgage involved, you'll almost certainly go through a home appraisal. It's one of the most consequential steps in any real estate transaction — and one of the most misunderstood. An appraisal can confirm your deal is on solid ground, or it can throw a major wrench into the process if the numbers don't align.
This guide explains exactly what a home appraisal is, how the process works, what appraisers look for, and what to do if an appraisal comes in lower than expected — whether you're the buyer or the seller.
What Is a Home Appraisal?
A home appraisal is an independent, professional assessment of a property's fair market value. It is conducted by a licensed or certified appraiser who evaluates the home based on its condition, features, location, and recent sales of comparable properties nearby.
The appraisal serves a critical role in a real estate transaction: it protects the lender. When a bank or mortgage lender agrees to finance a home purchase, they're essentially lending money against the value of the property. If the borrower defaults, the lender needs to know the home is worth at least as much as the loan. An appraisal is how lenders verify that the agreed purchase price reflects the home's actual value.
Appraisals are different from home inspections. An inspection assesses the physical condition and systems of a home — looking for defects, safety issues, and needed repairs. An appraisal establishes market value. Both serve important functions, and most mortgage transactions involve both.
When Does a Home Appraisal Happen?
The appraisal typically happens after the purchase agreement is signed — after the buyer and seller have agreed on a price and the buyer has applied for a mortgage. The lender orders the appraisal once the loan application is underway, typically within the first 1–2 weeks of the contract period.
The timeline:
- Buyer and seller sign the purchase agreement
- Buyer applies for a mortgage
- Lender orders the appraisal from an independent appraiser
- Appraiser contacts the seller (or listing agent) to schedule the inspection
- Appraiser visits the property (typically takes 30–60 minutes for an average home)
- Appraiser compiles the report (typically takes 3–7 business days after the visit)
- Lender reviews the appraisal report
- If the appraisal meets or exceeds the purchase price, the loan process continues
- If the appraisal comes in below the purchase price, negotiations may be required
Who Orders and Pays for the Appraisal?
The lender orders the appraisal, not the buyer or seller. This independence is by design — it prevents either party from influencing the appraiser's opinion of value.
However, the buyer pays the appraisal fee. The fee is typically due upfront at the time of the appraisal or included in closing costs. In 2026, appraisal fees typically range from $350–$600 for a standard single-family home, though complex properties, large homes, and certain markets can run higher.
Buyers have the right to receive a copy of the appraisal report. This is valuable information regardless of the outcome — the report provides detail about the appraiser's methodology and the comparable sales used.
What Does an Appraiser Look At?
A licensed appraiser evaluates dozens of factors when assessing a home's value. These fall into several categories:
Property Characteristics
- Square footage — Above-grade living area is the primary size measurement
- Lot size — Larger lots generally add value, particularly in suburban and rural areas
- Number of bedrooms and bathrooms
- Garage — Attached, detached, or none; single- or multi-car
- Basement — Finished vs. unfinished; above-grade vs. below-grade
- Age and overall condition — Newer construction and recently updated homes typically appraise higher
- Construction quality and materials
Property Condition
Appraisers note the overall condition of the home using a standardized rating scale. Key issues that can negatively affect appraised value include:
- Deferred maintenance (peeling paint, damaged gutters, broken fixtures)
- Functional or structural deficiencies
- Outdated kitchens and bathrooms relative to comparable homes
- Obvious safety issues (exposed wiring, damaged handrails, etc.)
Upgrades and Improvements
Not all renovations add value dollar-for-dollar, but appraisers do credit meaningful upgrades:
- Kitchen remodels (new cabinets, countertops, appliances)
- Bathroom renovations
- New roof, HVAC, or windows
- Finished basement or additional living space
- Swimming pools (adds value in warmer climates; neutral or negative in cold climates)
Location Factors
- Neighborhood — Quality of surrounding homes, proximity to amenities, school district ratings
- Comparable sales ("comps") — The most important factor; see below
The Role of Comparable Sales ("Comps")
The backbone of any appraisal is the sales comparison approach — the appraiser identifies recently sold homes (the "comps") that are similar to the subject property in size, location, age, and condition, then adjusts for differences to arrive at a value estimate.
Appraisers typically look for 3–5 comparable sales within the past 6 months and within a half-mile to one mile of the subject property (or farther in rural areas where sales are sparse). If a comp is slightly larger, the appraiser makes a downward adjustment. If it has fewer bathrooms, the appraiser adjusts upward. This adjusted value from each comp is then averaged or weighted to arrive at the appraiser's opinion of value.
This process is why the local market matters enormously. In a rising market with strong recent comps, your home may appraise right at or above your purchase price. In a softening market or an area with few recent sales, appraising at contract price can be more challenging.
What If the Appraisal Comes In Low?
A "low appraisal" — where the appraised value is below the agreed purchase price — is one of the most stressful events in a real estate transaction. It happens in roughly 5%–8% of sales, according to NAR data. Here's what it means for both parties.
For Buyers
Lenders will only finance up to the appraised value. If you agreed to pay $450,000 and the home appraises at $430,000, your lender will only write a loan based on $430,000 — creating a $20,000 "appraisal gap."
Your options as a buyer:
- Renegotiate the price — Ask the seller to reduce the price to the appraised value. In a buyer-friendly market, many sellers will agree rather than lose the deal.
- Pay the gap out of pocket — Bring additional cash to closing to cover the difference between the appraised value and the purchase price. This is common in competitive markets where buyers want to keep their offer strong.
- Split the difference — Negotiate a compromise where the seller reduces the price partway and the buyer covers the remaining gap.
- Request a reconsideration of value (ROV) — If you believe the appraiser made errors or used poor comps, your lender can request a reconsideration with additional data. This doesn't always succeed, but it's worth pursuing if you have strong evidence.
- Walk away — If your contract includes an appraisal contingency, you can exit the deal and recover your earnest money if the home doesn't appraise at the purchase price.
For Sellers
If your home gets a low appraisal, your most straightforward path is to reduce the price to the appraised value — especially if you're in a market with solid inventory and the buyer has alternatives. However, you also have the right to:
- Negotiate a split — Meet the buyer partway rather than absorbing the full gap
- Challenge the appraisal — Provide the buyer's agent or lender with additional comp data you believe the appraiser overlooked
- Terminate and relist — If no compromise is reached, the deal falls apart and you start over. Note that the low appraisal doesn't go away — future buyers' lenders may encounter the same results.
The Appraisal Contingency: Why It Matters
The appraisal contingency is a clause in the purchase contract that protects buyers if the home appraises below the purchase price. With this contingency in place, if the appraisal comes in low and the buyer and seller cannot agree on a resolution, the buyer can cancel the contract and receive their earnest money back.
In competitive markets, some buyers waive the appraisal contingency to make their offer more attractive to sellers. This is a significant financial risk — if you waive the contingency and the appraisal comes in low, you're obligated to either pay the gap or forfeit your earnest money. Only waive this contingency if you have the cash reserves to cover a potential gap and understand the risk.
Appraisals for Refinancing
Home appraisals are also required in most refinance transactions. When you refinance, the lender needs to confirm the home's current value to determine how much they'll lend. A strong appraisal can enable you to access more equity; a low appraisal may limit your refinance options.
For refinances, you as the homeowner have more ability to prepare: ensure the home is clean and well-presented, and compile a list of improvements and upgrades to share with the appraiser. Unlike a purchase appraisal, you're not fighting against a contract price — the goal is simply to get the most accurate value possible.
Tips for Sellers: How to Prepare for an Appraisal
While you can't tell an appraiser what to value your home at, you can make sure they have the best possible picture:
- Clean and tidy the home — A well-maintained presentation reinforces the condition rating
- Fix minor deferred maintenance — Leaky faucets, broken fixtures, peeling paint — address anything that signals neglect
- Compile a list of improvements — Provide a dated list of upgrades, their estimated costs, and receipts where possible. Appraisers appreciate documentation.
- Identify strong comps yourself — If you know of recent sales in the neighborhood that support your value, share them with your agent to provide to the appraiser
- Be present or have your agent present — A brief, professional walk-through conversation with the appraiser can ensure they're aware of features they might otherwise miss
The Bottom Line
A home appraisal is a normal and necessary part of almost every mortgage transaction. For buyers, it's a financial safeguard ensuring you're not overpaying for a home your lender wouldn't fully finance. For sellers, it's the moment the market renders a data-driven verdict on your pricing.
Understanding how appraisals work, what appraisers look for, and how to respond to a low appraisal puts both buyers and sellers in a stronger position. Go in informed, know your options, and you'll navigate this step of the transaction with confidence.