| Step | Figure |
|---|---|
| Estimated market value | $400,000 |
| Assessment ratio | 80% |
| Assessed value | $320,000 |
| Tax rate | 1.25% |
| Annual property tax | $4,000 |
Glossary · Pricing & valuation
Assessed Value
Assessed value is the dollar figure a county or municipal tax assessor assigns to a property to calculate property taxes. It is set using local rules and may apply an assessment ratio to the property's estimated market value. Assessed value often differs from both market value and appraised value, and it is primarily a tax figure rather than a reliable measure of what a home is worth.
How is assessed value calculated?
A tax assessor estimates a property's value using local methods, then may multiply it by an assessment ratio to reach the assessed value. Property tax is that assessed value times the local tax rate. Rules vary by jurisdiction, and some areas reassess only periodically or cap annual increases.
The assessor may value the property at full market estimate or at a fraction of it, depending on local assessment ratios.
Because reassessment schedules and caps differ, assessed value can lag well behind a home's actual market price, sometimes for years.
Why does assessed value matter?
Assessed value directly determines how much property tax an owner pays, since tax equals assessed value times the local rate. A higher assessment means a bigger tax bill. Understanding it helps owners budget, spot errors, and decide whether to appeal an assessment they believe is too high.
For owners, the assessment drives an ongoing cost. Even a modest overstatement can add up over years of tax bills.
Owners who believe their assessment is too high can usually appeal it, presenting comparable sales or errors to the assessor for review.
Why is assessed value different from market value?
Assessed value serves taxation, while market value reflects what a buyer would pay. Assessors follow local ratios and reassessment schedules, so the assessed figure can lag or fall below current market value. Caps on annual increases widen the gap further, making assessed value an unreliable proxy for a home's true worth.
Some jurisdictions assess at only a percentage of market value, so the assessed figure looks far lower by design.
Buyers should not use assessed value to judge what a home is worth. Recent comparable sales and appraisals reflect market value far better.
Worked example. For example, a county estimates a home's market value at 400,000 dollars and applies an 80 percent assessment ratio, giving an assessed value of 320,000. With a local tax rate of 1.25 percent, the annual property tax is 4,000 dollars. The assessed value sits well below the home's actual market price.
Common mistakes with Assessed Value
- Treating assessed value as a reliable indicator of what a home is worth.
- Assuming assessed value equals market value, when assessment ratios often make it lower.
- Overlooking the right to appeal an assessment that seems too high.
- Expecting assessed value to update immediately after a sale or renovation.
- Comparing assessed values across jurisdictions with different ratios and reassessment rules.
Related terms
Term
Fair Market Value
The price a willing buyer and willing seller would agree on, both informed and neither und
Define TermAppraisal
A licensed appraiser's independent, professional opinion of a property's market value.
Define TermPrice Per Square Foot
A property's price divided by its living area, used to compare relative value between home
Define TermClosing Costs
The fees and expenses, beyond the purchase price, that buyers and sellers pay to finalize
DefineAssessed Value FAQ
Is assessed value the same as market value?
No. Assessed value is a tax figure set by local rules and ratios, while market value is what a buyer would actually pay. Assessment schedules and caps often make the assessed value lag behind market value. Never rely on it to judge a home's true worth.
Can I appeal my assessed value?
Yes. Most jurisdictions let owners appeal an assessment they believe is too high, usually by submitting comparable sales or documenting errors within a filing window. A successful appeal lowers your assessed value and your property tax bill. Procedures and deadlines vary by locality.
How often does assessed value change?
It depends on the jurisdiction. Some reassess annually, others every few years, and many cap how much the assessment can rise each year. Because of these schedules and limits, assessed value can lag well behind a home's current market price, sometimes for a long time.
Does a home sale change its assessed value?
Often a sale prompts a reassessment, but timing and rules vary widely by jurisdiction. Some areas reset the assessment to the sale price; others adjust gradually or on a fixed schedule. Check local rules, since a purchase can raise the assessed value and future tax bills.
Why is my assessed value lower than my home's price?
Many jurisdictions assess at a fraction of market value using an assessment ratio, and reassessment lags or annual caps hold the figure down. So a lower assessed value than your purchase price is common and expected. It reflects tax rules, not a lower true market value.
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