What Is the Property Tax in Jefferson County, Alabama?

The property tax in Jefferson County, Alabama is calculated by taking your home’s appraised market value, multiplying it by an assessment ratio (10% for most owner-occupied homes), then multiplying that assessed value by the total millage rate for your specific location, and finally subtracting any exemptions you qualify for. Because millage rates differ sharply between Birmingham, Mountain Brook, Vestavia Hills, and unincorporated areas, two homes with the same market value can end up with very different bills.

How the Calculation Works

Alabama uses a three-step formula. The county applies an assessment ratio to your appraised market value, multiplies the result by the applicable millage rate, and then subtracts any exemptions.¹

The ratio depends on how your property is classified under state law:

Class I (utilities): 30% of market value
Class II (commercial, industrial, and other property not classified elsewhere): 20%
Class III (owner-occupied residential, agricultural, forest, and historic property): 10%
Class IV (personal-use automobiles and pickup trucks): 15%

Most homeowners are in Class III.²

Here is the math on a typical home. A residence appraised at $200,000 has an assessed value of $20,000 (10% of market value). If the total millage rate is 72.5 mills, the annual tax before exemptions is $1,450 ($20,000 × 0.0725). One mill equals one-tenth of one cent, so 72.5 mills means $72.50 for every $1,000 of assessed value.¹

Millage Rates by Location

Your total millage rate is the sum of state, county, school district, and municipal levies. Each city sets its own municipal rate, so a city line can mean a meaningful difference in your bill. For the 2025 tax year, total rates in Jefferson County ranged from around 50 mills in unincorporated areas to over 100 mills in some municipalities:

Unincorporated Jefferson County: approximately 50.1 total mills
Birmingham (District 30): approximately 72.5 total mills
Adamsville: approximately 60.7 total mills
Vestavia Hills: approximately 92.6 total mills
Mountain Brook: approximately 109 total mills

Rates shift each year as local governments adopt new budgets. The current rate for your exact address is published annually on the Jefferson County Citizen Access Portal.³

Homestead and Senior Exemptions

Alabama’s homestead exemptions stack depending on your age and income, and they are the main way to lower a residential bill.

Any owner-occupant can claim the basic homestead exemption, which removes up to $4,000 in assessed value from state property taxes. A separate county-level exemption removes up to $2,000 from county taxes, and local governments may raise that cap to $4,000 by ordinance. For owners under 65, neither of these touches school district levies.⁴

Residents who are 65 or older, or who are permanently and totally disabled at any age, qualify for much larger relief if combined household net taxable income is $12,000 or less per year. At that income level, your principal residence and up to 160 adjacent acres are fully exempt from all ad valorem taxes, including county and school levies. The income figure comes from your most recent federal tax return, or from a sworn affidavit if you weren’t required to file.⁵

Even if your income is above $12,000, being 65 or older still qualifies you for an increased county exemption of up to $5,000 in assessed value, and this one does cover school district levies.⁴

How to Apply

Apply through the Jefferson County Tax Assessor’s office. You will need to prove you owned and lived in the home as of the October 1 lien date, so bring your recorded deed and a government-issued ID showing the property address. Disability applicants need affidavits from two licensed Alabama physicians confirming permanent and total disability. Anyone already receiving a disability pension from the military or a government agency is automatically certified.⁵

The exemption does not transfer. If you sell the home, move out, or start renting it to someone else, you no longer qualify. Buyers must file their own application, and sellers should notify the Assessor’s office. Failing to report a change can result in back taxes on the exempted amount, plus penalties.

When Taxes Are Due and How to Pay

Property taxes in Alabama become due on October 1 each year, based on the value established on the previous October 1 lien date.⁶ You have until December 31 to pay without penalty. Starting January 1, unpaid taxes are delinquent and accrue interest at 12% per year, added to the balance and collected as part of the tax.⁷

Jefferson County accepts payments in person at the Tax Collector’s offices in both the Birmingham and Bessemer courthouses. You can mail a check or money order; write your Parcel ID on the payment so it posts to the right account. Online payments go through the county’s portal. Credit and debit card transactions carry a processing fee from the third-party vendor, but paying directly from a bank account online avoids that fee.

What Happens If You Don’t Pay

Delinquency gets expensive fast. On top of the 12% annual interest, the county can sell a tax lien certificate on your property at a public auction. The buyer pays your delinquent taxes and earns interest on that amount at a rate set by competitive bidding. You receive notice by mail within 30 days of the sale.⁸

If a third party buys the certificate, you have three years from the sale date to redeem the property by paying the full delinquent amount plus accumulated interest and fees. If no outside buyer steps in and the state acquires the lien, your redemption window stays open until the state transfers the property. That can run longer, but it is not something to count on. Once the redemption period expires, the certificate holder can begin foreclosure, and you can lose the property.

Appealing Your Property Valuation

If the Assessor overvalued your property, you can challenge the number through the Jefferson County Board of Equalization. The board holds hearings at the courthouse beginning on a date set each year by the Alabama Department of Revenue, and you must file your objection in writing before or during that hearing period.⁹

At the hearing, you can appear yourself or send an attorney or agent. The board examines you and any other witnesses under oath about the property’s fair market value. Bring concrete evidence. A recent independent appraisal, comparable sales from your neighborhood, or photographs of damage or deterioration the Assessor may have missed will carry more weight than an unsupported opinion. If the board finds the assessed value doesn’t reflect fair market value, it adjusts the figure. If it confirms the original value, that number stands unless you take the next step.

Circuit Court Appeal

A property owner who disagrees with the Board of Equalization’s final decision can appeal to circuit court. Alabama law gives the Tax Assessor the right to defend the valuation there. Filing fees and attorney costs make this route worthwhile mainly when the disputed amount, projected over several years of future bills, is large enough to justify the expense.

1
Alabama Department of Revenue. Property Tax Assessment
2
Alabama Legislature. Alabama Code 40-8-1 – Classification of Property; Assessment Rate
3
Jefferson County, AL. Millage Rates for Jefferson County, Alabama
4
Alabama Administrative Code. Alabama Administrative Code 810-4-1-.23 – Homestead and Principal Residence Exemptions From Property Tax
5
Alabama Legislature. Alabama Code 40-9-21 – Principal Residences and 160 Acres Adjacent Thereto of Permanently and Totally Disabled Persons or Persons 65 Years of Age or Older Having Net Annual Federally Taxable Income of $12,000 or Less
6
Alabama Department of Revenue. Property Tax
7
Alabama Legislature. Alabama Code 40-5-9 – Interest on Delinquent Taxes
8
Alabama Legislature. Alabama Code 40-10-187 – Tax Lien Certificates
9
Alabama Legislature. Alabama Code 40-3-19 – Meetings – Hearing Objections to Valuations