QUICK ANSWER
Adjust the comparable, never the subject. If the comparable is better than the subject, subtract from the comparable's sale price. If the comparable is worse, add to it. One memory hook covers every question: Better Comp, Bring it down. Inferior Comp, Increase it. The subject is the property you are valuing, so its value is the unknown you are solving for. The comparable already sold, so its price is the number you move. This sits inside the Real Estate Appraisal area of the DBPR candidate information booklet, listed as 8% of the sales associate exam.
EXAM PREP ONLY
This post explains how the sales comparison approach appears on the Florida real estate sales associate exam. It is not legal, tax, lending, appraisal, brokerage, title, insurance, closing, valuation, or professional advice. Real appraisal work depends on current USPAP standards, Florida appraisal law, lender instructions, property facts, market data, and qualified professional judgment.
Do you add or subtract in the sales comparison approach?
Subtract when the comparable is better than the subject. Add when the comparable is worse. You move the comparable's sale price, not the subject's value.
That single sentence answers most exam questions on this topic. The rest of this guide shows you why it works, drills it with worked practice problems, and names the wrong answers the exam uses to trip you.
Here is the rule in the form the exam tests:
| Comparable compared with subject | What you do | Why |
|---|---|---|
| Comparable is better (superior) | Subtract from the comparable's sale price | The comp sold with an advantage the subject lacks, so its price is too high |
| Comparable is worse (inferior) | Add to the comparable's sale price | The comp sold without an advantage the subject has, so its price is too low |
If you remember nothing else: the comparable is the only number that moves. The subject is what you are solving for.
What this guide covers
- The add-or-subtract rule and why it works
- What the sales comparison approach (comparable sales approach) is
- How to read an adjustment problem in four steps
- The full adjustment matrix
- Worked practice problems with answers
- How reconciliation actually works
- Market value vs market price vs cost
- CMA, BPO, and appraisal boundaries
- Traps that cost points
- A practice loop, FAQ, methodology, and sources
Why this topic is more than a definition
Most candidates can memorize one sentence: the sales comparison approach uses comparable sales to estimate value. That is not enough for the Florida exam.
The exam tests the decision hidden inside the definition. It gives you a subject property, a comparable property, and a feature difference, then asks what to do with the comparable sale price. The wrong answers are attractive because they follow everyday thinking: "the subject lacks a pool, so the subject must be worth less," or "the subject has a garage, so add value to the subject." That thinking spots the value difference, but it moves the wrong number.
The sales comparison approach moves the comparable sale price toward the subject. The subject is the property being valued, so its value is the unknown. The comparable already sold, so its sale price is the starting point. Adjust that known price until it reflects the subject's features.
This is why the sales comparison approach is a reading problem as much as a valuation concept. You need to know which property is the subject, which is the comp, which is superior, and whether the comp's price moves up or down.
What the sales comparison approach is
The sales comparison approach, also called the comparable sales approach or market data approach, estimates the market value of a subject property by analyzing recently sold comparable properties. The evidence comes from actual market transactions, which is why it is often the primary approach for homes when enough comparable sales exist.
The basic process is:
- Identify the subject property.
- Find similar properties that recently sold.
- Compare each sale to the subject.
- Adjust each comparable sale price for meaningful differences.
- Reconcile the adjusted prices into a value indication for the subject.
The phrase "similar properties" matters. A comparable is useful only if buyers in the same market would treat it as a reasonable substitute for the subject. A sale in a different neighborhood, a sale from a different market cycle, or a sale with unusual financing may need major adjustment, or may not be a good comparable at all.
For the Florida sales associate exam, the approach is most often tied to single-family residential property because residential neighborhoods usually have enough recent sales data. Special-use properties often point toward the cost approach. Income-producing properties often point toward the income capitalization approach.
| Approach | Primary exam signal | Core question |
|---|---|---|
| Sales comparison | Residential property with comparable sales | What did similar properties sell for after adjustments? |
| Cost-depreciation | New construction or special-purpose property | What is land plus cost new minus depreciation? |
| Income capitalization | Investment or commercial property | What is the income stream worth? |
How to read an adjustment problem
Use a four-step read before touching the numbers.
| Step | Question | Why it matters |
|---|---|---|
| 1 | Which property is the subject? | The subject is the value target, not the number you adjust. |
| 2 | What was the comparable sale price? | This is the number you adjust. |
| 3 | Is the comparable superior or inferior? | This controls add versus subtract. |
| 4 | What is the dollar value of the difference? | This is the adjustment amount. |
After that, the arithmetic is plain:
Adjusted comparable price = comparable sale price + additions - subtractions
The hard part is not the formula. The hard part is choosing the sign, and the sign is set entirely by whether the comparable is better or worse than the subject.
A quick gut check that catches most mistakes: ask "what would this comparable have sold for if it had been just like the subject?" If the comp had a pool the subject lacks, strip the pool value out. If the comp was missing a bathroom the subject has, build that value in.
The adjustment matrix
This matrix is the core of the topic. If you can explain each row out loud, you understand the exam logic.
| Stem fact | Comparable is... | Adjustment to comp | Reason |
|---|---|---|---|
| Comp has a pool; subject does not | Superior | Subtract pool value | The comp sold with an advantage the subject lacks |
| Subject has a pool; comp does not | Inferior | Add pool value | The comp sold without an advantage the subject has |
| Comp has 2-car garage; subject has 1-car garage | Superior | Subtract garage difference | The comp has more garage utility |
| Subject has updated kitchen; comp has original kitchen | Inferior | Add update value | The comp sold without the subject's better kitchen |
| Comp is in better condition | Superior | Subtract condition adjustment | The comp's price includes better condition |
| Subject is in better condition | Inferior | Add condition adjustment | The comp's price lacks the subject's condition advantage |
| Comp sold six months ago and prices rose since | Inferior to today's market | Add market-condition adjustment | The old comp price is low compared with today |
| Comp sold six months ago and prices fell since | Superior to today's market | Subtract market-condition adjustment | The old comp price is high compared with today |
| Comp had seller-paid concessions not typical for the market | Usually treated as superior | Subtract the concession effect | The price may include value not tied to the real estate |
Market-condition questions feel different because the feature is time, not a pool or garage. The same logic still applies. Ask whether the comparable's old sale price is too low or too high compared with the valuation date, then move it the same way.
Choosing the right comparable sales
The exam does not require you to be an appraiser, but it does expect you to recognize which comparable is stronger.
| Comparable feature | Strong comp signal | Weak comp signal |
|---|---|---|
| Location | Same or similar neighborhood | Different submarket with a different buyer pool |
| Date of sale | Recent sale in similar market conditions | Old sale from a different price cycle |
| Property type | Similar residential use | Different use or special-purpose property |
| Size | Similar square footage and lot size | Large size gap requiring major adjustment |
| Condition | Similar age, updates, and maintenance | Major condition difference |
| Terms of sale | Arm's-length sale | Distress sale, family sale, or unusual financing |
| Highest and best use | Same likely use | Different legal or economic use |
The most similar comparable usually needs fewer adjustments. A comp requiring one small adjustment is often better evidence than a comp requiring five large ones. When the exam describes several sales and asks for the best comparable, pick the one that is most recent, closest in location, most similar physically, and least affected by unusual terms.
Practice problems with answers
These are original instructional problems built to teach adjustment direction. They are not copied exam questions.
Problem 1: the pool trap
Stem: The subject property has no pool. A comparable sold for $420,000 and has a pool worth $30,000. What is the adjusted comparable price?
- The subject has no pool. The comparable has one.
- The comparable is superior, so subtract.
$420,000 - $30,000 = $390,000
The tempting wrong answer is $450,000. That adds the pool value because the candidate is thinking about the feature instead of the comp's superiority. The comparable already sold with the pool. To make it resemble the subject, remove that advantage.
Problem 2: the missing garage
Stem: The subject property has a two-car garage. A comparable sold for $365,000 and has a one-car garage. The extra garage bay is worth $15,000. What is the adjusted comparable price?
- The subject has the better garage. The comparable is missing a bay.
- The comparable is inferior, so add.
$365,000 + $15,000 = $380,000
The comp sold without a feature the subject has. Add the missing value so the comp behaves more like the subject.
Problem 3: mixed adjustments
Stem: The subject has an updated kitchen and no pool. A comparable sold for $500,000. The comparable has an older kitchen but also has a pool. The kitchen adjustment is $25,000 and the pool adjustment is $40,000. What is the adjusted comparable price?
Label each difference separately before assigning a sign:
| Difference | Comparable is... | Direction | Amount |
|---|---|---|---|
| Comp has older kitchen; subject updated | Inferior | Add | $25,000 |
| Comp has pool; subject has none | Superior | Subtract | $40,000 |
$500,000 + $25,000 - $40,000 = $485,000
Do not net the features in your head before assigning signs. Label each difference first, then add or subtract. Netting first is how candidates flip a sign and lose the point.
How reconciliation works
After each comparable is adjusted, the appraiser reconciles the adjusted values. Reconciliation does not mean taking a blind average.
Suppose the adjusted comparable prices are:
| Comp | Adjusted price | Adjustment burden |
|---|---|---|
| Comp 1 | $390,000 | One small adjustment |
| Comp 2 | $405,000 | Several moderate adjustments |
| Comp 3 | $455,000 | Large location and condition adjustments |
The best value indication is probably closer to Comp 1 or Comp 2 than to a simple average of all three. Comp 3 is less reliable because it required major adjustments. In exam language, the appraiser gives more weight to the most comparable sales, especially those needing fewer and smaller adjustments.
This matters because the exam may offer answer choices like "average all adjusted sales" or "choose the highest adjusted value." Those sound mechanical, but reconciliation is judgment based. The strongest answer gives the greatest weight to the most similar and reliable comparable.
Market value, market price, and cost
The sales comparison approach is built around market value, but the exam likes to blur related terms.
| Term | Meaning for exam purposes | Trap |
|---|---|---|
| Market value | Most probable price under normal market conditions | Treating it as any price paid |
| Market price | The actual amount paid in a specific sale | Assuming it equals market value in every case |
| Cost | What it takes to build or replace something | Confusing construction cost with market value |
| Assessed value | Value used for property tax purposes | Treating a tax assessment as appraisal market value |
A market price is evidence of market value when the sale was arm's length, recent, and typical. It is weak evidence when the sale involved distress, a family transfer, unusual financing, or concessions. The exam uses this to test whether you can separate a clean comparable from a noisy one. A foreclosure, a sale between relatives, or a sale with unusual seller financing may need adjustment or rejection as a comparable.
CMA, BPO, and appraisal boundaries
The approach also appears in questions about who may produce a value opinion. A sales associate may help prepare a comparative market analysis (CMA) through the employing broker. A broker price opinion (BPO) also lives inside the brokerage framework. An appraisal is different: under Florida appraisal law, appraisal services and reports are tied to certified or licensed appraisers and registered trainees under supervision.
| Work product | Who is usually involved | Key exam point |
|---|---|---|
| CMA | Broker or sales associate under broker direction | Listing or offer guidance, not an appraisal |
| BPO | Brokerage framework, associate work through the broker | Watch the compensation path |
| Appraisal | Licensed or certified appraiser, or supervised trainee | Governed by appraisal standards and Florida law |
This article teaches the approach as an exam concept. It does not authorize a sales associate to issue an appraisal report. For the legal boundary, pair this with CMA vs appraisal vs BPO.
Traps that cost points
| Trap | Better move | Why it works |
|---|---|---|
| Adjusting the subject | Adjust the comparable sale price | The subject value is the unknown |
| Adding for every good feature | Decide whether the comp is better or worse | A comp's advantage requires subtraction |
| Ignoring market conditions | Ask whether prices changed since the comp sold | Time can make an old sale too high or too low |
| Picking the comp with the highest sale price | Pick the most similar and reliable comp | Similarity beats price level |
| Averaging adjusted values automatically | Reconcile based on comparability | The best comp deserves more weight |
| Calling a CMA an appraisal | Separate brokerage valuation from appraisal | Florida law treats the labels differently |
| Confusing market price with market value | Check whether the sale was typical and arm's length | A noisy sale may not prove market value |
A short practice loop
Use this loop when the comparable sales approach keeps costing points.
- Drill 10 adjustment-direction questions.
- For each miss, write one sentence: "The comparable was superior, so subtract," or "The comparable was inferior, so add."
- Drill 10 mixed appraisal questions so sales comparison appears beside cost and income.
- Redo the missed questions after a break.
- Stop when the mistake type changes from a direction error to ordinary arithmetic.
The goal is not to memorize every feature. It is to make the direction rule automatic enough that the exam's wording cannot pull you into adjusting the wrong property.
APPRAISAL PRACTICE THAT TESTS THE TRAP
Sales comparison gets easier when you drill adjustment direction.
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Ready to lock in sales comparison points
Do not study the comparable sales approach as a vocabulary card. Study it as a repeatable decision:
- Name the subject.
- Name the comparable.
- Decide whether the comparable is superior or inferior.
- Adjust the comparable sale price up or down.
- Give more weight to the best comparable evidence.
Once that sequence is automatic, this becomes one of the most controllable appraisal points on the Florida exam.
FAQ
Do you add or subtract in the sales comparison approach?
Subtract when the comparable is better than the subject, and add when the comparable is worse. You adjust the comparable's sale price, not the subject.
Which property gets adjusted, the subject or the comparable?
The comparable. The subject is the property being valued, so its value is the unknown you are solving for. The comparable already sold, so its price is the number you move.
Do you add or subtract when the comparable has a better feature?
Subtract. A better comparable sold with an advantage the subject lacks, so its sale price must come down to resemble the subject.
Do you add or subtract when the subject has the better feature?
Add. If the subject has the better feature, the comparable is inferior, so the comparable sale price must rise to resemble the subject.
Is the sales comparison approach the same as a CMA?
No. A CMA uses comparable-sales logic, but it is a brokerage pricing tool. The sales comparison approach is an appraisal approach to value. A Florida sales associate should not call a CMA an appraisal.
Is the sales comparison approach only for houses?
No, but the Florida exam commonly ties it to residential property because homes usually have enough comparable sales. Special-use and income properties often rely more on the cost or income approaches.
Are copied exam questions a good way to study this?
No. The goal is to learn the rule, the adjustment direction, and the wrong-answer trap. Practice should teach the decision, not reproduce real exam items.
Sources & Methodology
This guide was rewritten on June 15, 2026 as an exam-prep article for Florida real estate sales associate candidates. It uses the DBPR Real Estate Sales Associate Candidate Information Booklet for exam scope, Florida Statutes Chapter 475 Part II for appraisal-law context, and The Appraisal Foundation's USPAP page for the current professional-standards reference. The Appraisal Foundation page identified the 2024 USPAP edition as current when this article was checked.
The article focuses on exam recognition, not real appraisal practice. Examples are original instructional problems designed to teach adjustment direction. They are not copied exam questions, not appraisal assignments, and not transaction advice.
This post is exam-prep content for Florida real estate sales associate candidates studying the sales comparison approach. It is not legal, tax, financial, lending, appraisal, brokerage, title, closing, valuation, transaction, or professional advice. Real-world appraisal and valuation work depends on current USPAP standards, Florida statutes and rules, property facts, lender requirements, market data, and qualified professional judgment. Verify current rules and transaction-specific questions with official sources and qualified professionals. Studying with Pass Florida or any other exam-prep tool does not guarantee passage of the state exam.
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