South Portland, Cumberland County, Maine Property Taxes
Property Taxes in South Portland, Maine
Median South Portland, Maine effective property tax rate: 1.32%, significantly lower than the national median of 1.02%, and lower than the Maine state median of 1.47%.
Median South Portland, Maine home value: $429,500
Median annual South Portland, Maine tax bill: $5,674, $3,274 higher than the national median property tax bill of $2,400.
How are property taxes in Cumberland calculated?
Property taxes in South Portland, Maine 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 South Portland's property tax system, exemptions, and reduction opportunities can lead to significant savings. Regardless of where you live in South Portland, knowing local tax details benefits homeowners and investors.
Last Updated April 13, 2026
South Portland, Cumberland County, Maine Property Tax Bill Calculator
$100,000
$1,500,000
$3,000,000
Median Effective Tax Rate
1.32%
Estimate Property Tax Bill
$5,669
$5,261
How Does the South Portland Property Tax Calculator Work?
Use this South Portland property tax calculator to estimate your annual property tax bill. Enter your property's assessed value and our calculator applies South Portland's median effective tax rate of 1.32% — based on actual property records in Cumberland County — to generate your estimate.
Enter your property's estimated assessed value — the figure the local assessor uses to calculate your bill, which reflects any exemptions you hold and is typically lower than your home's market value. Our calculator applies South Portland's median effective rate across all local levies, providing a more accurate estimate than applying a single county millage rate.
South Portland's median effective tax rate is higher than Maine's 1.47% state median tax rate, and the median property tax bill is $5,674. That bill is $3,274 higher than the state tax bill.
Your bill may vary by ZIP code within South Portland, with 04106 showing the highest and lowest median tax bill at $5,674. For a more precise estimate, scroll down to explore ZIP code-level tax rate trends across South Portland.
About South Portland Property Taxes
About Property Taxes in South Portland, Cumberland, Maine
South Portland's median effective property tax rate of 1.32% is higher than the Maine state median of 1.47% and higher than the national median of 1.02%. This rate reflects the Cumberland 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 South Portland. Homeowners in the 04106 ZIP code carry a median effective rate of 1.32%, while those in the same ZIP code also pay 1.32%. This spread — 0 percentage points across the same city — reflects how school district boundaries and local assessment districts are drawn across Cumberland County. Understanding which part of South Portland you live in can make a meaningful difference to your annual tax bill.
South Portland homeowners who believe their assessed value is too high can file a formal appeal with the Tax Assessor before the March 30, 2026 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 South Portland, Cumberland County, Maine
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 South Portland's effective property tax rate to other cities in Maine and the median property tax rates in Maine 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 South Portland Tax Rate
1.32%
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 Cumberland County Tax Rate
1.47%
Median Effective Maine Tax Rate
1.47%
Median Effective United States Tax Rate
1.02%
Property Tax Rates Across South Portland, Cumberland County, Maine
| Zip | 10th Percentile | 25th Percentile | Median Tax Rate | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 04106 | 1.32% | 1.32% | 1.32% | 1.32% | 1.32% |
Source: Ownwell
Property Tax Assessment Values Across South Portland, Cumberland County, Maine
When examining property taxes in South Portland, Maine, 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. Cumberland County 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 are sent in the spring each year and typically reach your mailbox by the middle of the month. 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.
For example, the median home price in South Portland is $429,500, with a median tax bill of $5,674. That is well above the national median property tax bill of $2,400 and reflects a property tax rate environment that can vary significantly across the county.
Property Tax Assessment Values Across South Portland, Cumberland County, Maine
Source: Ownwell
$155,256
$515,378
$875,500
Median South Portland Market Value
$429,500
Median Cumberland County Market Value
$387,100
Median Maine Market Value
$242,800
Median United States Market Value
$235,294
Property Tax Assessment Values Across South Portland, Cumberland County, Maine
| Zip | 10th Percentile | 25th Percentile | Median Home Price | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 04106 | $309,600 | $365,500 | $429,500 | $530,200 | $684,570 |
Source: Ownwell
Property Tax Bills Across South Portland, Cumberland County, Maine
Property tax bills in South Portland are based on the assessed value of a home, which is then multiplied by the local property tax rate set by the city and county. For a home with a median value of $429,500, the bill can vary widely depending on the property’s assessed value and any local exemptions or adjustments that apply.
The typical tax burden in South Portland is high compared with the national median property tax bill of $2,400. The median tax bill is $5,674, and bills range from $4,825 at the 25th percentile to $7,008 at the 75th percentile, with the 90th percentile reaching $9,043. That means homeowners with higher assessed values or fewer tax-saving benefits may pay significantly more each year.
These bills directly affect monthly housing costs and long-term affordability, especially for homeowners whose property values have risen faster than their income.
Property Tax Bills Across South Portland, Cumberland County, Maine
Source: Ownwell
$1,979
$7,002
$12,024
Median South Portland Tax Bill
$5,674
Median Cumberland County Tax Bill
$5,457
Median Maine Tax Bill
$3,569
Median United States Tax Bill
$2,400
Property Tax Bills Across South Portland, Cumberland County, Maine
| Zip | 10th Percentile | 25th Percentile | Median Tax Bill | 75th Percentile | 90th Percentile |
|---|---|---|---|---|---|
| 04106 | $4,087 | $4,825 | $5,674 | $7,008 | $9,043 |
Source: Ownwell
Don't miss the deadline to appeal!
Dates | |
|---|---|
| Appeal Deadline | January 23 |
Links | |
|---|---|
| Cumberland Tax Assessor | |
| Website | gis.vgsi.com |