Property Taxes in Irmo, South Carolina
Median Irmo, South Carolina effective property tax rate: 0.85%, significantly lower than the national median of 1.02%, and higher than the South Carolina state median of 0.66%.
Median Irmo, South Carolina home value: $133,760
Median annual Irmo, South Carolina tax bill: $1,206, $1,194 lower than the national median property tax bill of $2,400.
How are property taxes in Lexington calculated?
Property taxes in Irmo, South Carolina are calculated based on the tax assessed value, which is often lower than the actual market value due to property tax exemptions such as the homestead or senior exemption.
Understanding Irmo's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in Irmo, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
How Does the Irmo Property Tax Calculator Work?
Use this Irmo property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies Irmo's median effective tax rate of 0.85% — based on actual property records in Lexington County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local appraisal district uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies Irmo's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
Your bill may vary by ZIP code within Irmo: rates range from 0.85% in 29063 to 0.85% in 29063, primarily due to differences in school district levies and local assessment districts.
For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across Irmo.
About Irmo Property Taxes
About Property Taxes in Irmo, Lexington, South Carolina
Irmo’s median effective property tax rate of 0.85% is lower than the South Carolina state median of 0.66% and lower than the national median of 1.02%. This rate reflects the Lexington County base levy combined with local school district levies and special assessment districts that vary by subdivision throughout the city.
Property tax rates are not uniform across Irmo. Homeowners in the 29063 ZIP code carry a median effective rate of 0.85%, while those in the same ZIP code also pay 0.85%. This spread — 0.00 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Lexington County. Understanding which part of Irmo you live in can make a meaningful difference to your annual tax bill.
Irmo homeowners who believe their assessed value is too high can file a formal appeal with the local Tax Assessor before the January 15, 2027 deadline each year.
If your estimated bill above seems higher than expected, Ownwell can review your assessment and protest on your behalf. You only pay if we save you money.
Property Tax Rates Across Irmo, Lexington County, South Carolina
As noted earlier, local government entities set tax rates, which can vary widely within a state.
Why? Because annually, each county estimates its required budget to provide services and divides that by the total value of all taxable property within its jurisdiction. This calculation results in the property tax rate.
While there are votes and laws involved in setting tax rates and budgets, in a nutshell, this is the annual process.
Below, you can compare Irmo's effective property tax rate to other cities in South Carolina and the median property tax rates in South Carolina and the U.S.
Our median effective property tax rate (tax bill Ă· assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Irmo Tax Rate
0.85%
Our median effective property tax rate (tax bill Ă· assessor's market value) accounts for exemptions and deductions, making it more accurate than the general median tax rate, which is the midpoint of statutory rates before adjustments.
Median Effective Lexington County Tax Rate
0.60%
Median Effective South Carolina Tax Rate
0.66%
Median Effective United States Tax Rate
1.27%
Property Tax Rates Across Irmo, Lexington County, South Carolina
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 29063 | 0.58% | 0.60% | 0.85% | 1.01% | 2.91% |
Source: Ownwell
Property Tax Assessment Values Across Irmo, Lexington County, South Carolina
When examining property taxes in Irmo, South Carolina, understanding the distinction between "market value" and "assessed value" is crucial.
The market value is what a willing buyer would pay to a willing seller in an open and competitive market, often influenced by location, property condition, and economic market trends. The Lexington County appraisal district estimates the market value for tax purposes.
The assessed value is the market value minus any applicable exemptions or limits determined by local laws and offerings. The tax assessed value is the figure used to calculate your property taxes or the amount multiplied by your tax rate to get your tax bill.
Assessment notices:
In Lexington County, assessment notices are sent in the spring each year. They'll typically reach your mailbox by the middle of the month when notices are sent.
Each property owner receives an assessment notice that contains both the market value and assessed value, along with an estimate of your property tax bill. By providing insights into how assessed and market values are determined, this section helps property owners navigate their tax responsibilities and understand the valuation processes affecting their property taxes in Irmo.
For example, the median home price in Irmo is $133,760, with tax bills ranging significantly across the county. ZIP code 29063 has the highest median home price at $133,760.
Property Tax Assessment Values Across Irmo, Lexington County, South Carolina
Source: Ownwell
$21,160
$158,080
$295,000
Median Irmo Market Value
$133,760
Median Lexington County Market Value
$157,196
Median South Carolina Market Value
$188,850
Median United States Market Value
$274,101
Property Tax Assessment Values Across Irmo, Lexington County, South Carolina
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 29063 | $87,869 | $100,372 | $133,760 | $175,000 | $225,320 |
Source: Ownwell
Property Tax Bills Across Irmo, Lexington County, South Carolina
Property tax bills in Irmo are calculated by applying the local tax rate to a home’s assessed value, which is based on the market value of the property. For homeowners, that means the bill is shaped by both what a home is worth and how it is classified for tax purposes. In Lexington County, the median home price is $133,760, and the median property tax bill is $1,206 in ZIP code 29063.
A homeowner’s final bill can vary widely depending on the assessed value, local taxing authorities, and any exemptions or appeals that may lower the amount owed. The 25th percentile tax bill is $945, while the 75th percentile is $1,787 and the 90th percentile reaches $3,559. Compared with the national median property tax rate of 1.02% and the national median property tax bill of $2,400, Irmo homeowners often see bills that are lower than the national median, but higher-value homes can still face a much larger tax burden.
Median Irmo Tax Bill
$1,206
Median Lexington County Tax Bill
$1,084
Median South Carolina Tax Bill
$1,227
Median United States Tax Bill
$3,209
Property Tax Bills Across Irmo, Lexington County, South Carolina
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 29063 | $737 | $945 | $1,206 | $1,787 | $3,559 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | October 18 |
Links | |
|---|---|
| Lexington Tax Assessor | |
| Website | www.lex-co.com |