Rate Breakdown

Property taxes in Jefferson County are calculated by multiplying the assessed value (minus exemptions) by the total local millage rate.

How Property Tax Works in Jefferson County

Jefferson County assesses property values on a triennial cycle, usually in the spring of a year ending in 2, 5, or 8. The County Assessor determines the market value of each parcel and then applies a constitutional assessment ratio of 10 %. This “assessed value” serves as the base for calculating the tax bill.

The county tax bill is calculated by multiplying the assessed value by the total millage rate (mills per $1,000 of assessed value). For 2024‑2025, Jefferson County’s combined millage rate—including the County, City of Birmingham, the School System, and other special districts—averages 30.75 mills (or $30.75 per $1,000 of assessed value). Specific districts may have higher or lower rates, so the exact amount can vary by address.

Formula:

Tax Bill = (Assessed Value ÷ 1,000) × Total Millage Rate

Example: A home with a market value of $250,000 has an assessed value of $25,000. At 30.75 mills, the tax bill would be:

(25,000 ÷ 1,000) × 30.75 = $768.75

Available Exemptions

Alabama law provides several homestead‑related exemptions that directly reduce the assessed value before the millage rate is applied. Jefferson County honors all state‑wide exemptions.

• Homestead Exemption: A standard $3,000 reduction in assessed value for owner‑occupied residential property.
• Senior Citizen Exemption: Residents age 65 + may receive an additional $5,000 reduction if their total household income does not exceed $30,000.
• Disability Exemption: Qualified disabled owners can claim a $5,000 reduction, regardless of age.
• Veteran Exemption: Honorably discharged veterans (or surviving spouses) may obtain a $2,000 reduction; disabled veterans qualify for an extra $3,000.

Exemptions are applied automatically when the Assessor’s office receives the appropriate documentation. Homeowners must file a claim with the Jefferson County Assessor’s Office each year, typically by March 1, to ensure the exemption is reflected on the upcoming bill.

Payment Schedule & Deadlines

Jefferson County property taxes are due in two installments:

• First Installment: Due by April 30 of the tax year. The amount is 50 % of the total bill.
• Second Installment: Due by October 31. This covers the remaining 50 %.

Taxpayers may also opt for quarterly payments (January, April, July, October) by enrolling in the County’s “Installment Plan,” which adds a small administrative fee (approximately $8 per year). All payments can be made online, by mail, or in person at any Jefferson County Tax Collector office.

Late payment consequences: If an installment is not received by the due date, a penalty of 5 % of the overdue amount is assessed, plus interest at the state‑mandated rate of 0.6 % per month. Persistent delinquency can result in a tax lien and eventual foreclosure.

Appealing Your Assessment

If you believe your property’s assessed value is inaccurate, Jefferson County offers a formal appeals process:

• Step 1 – File a Petition: Submit the “Petition for Review of Property Valuation” to the County Assessor’s Office within 30 days of receiving the notice of assessment.
• Step 2 – Provide Evidence: Attach comparable sales, independent appraisals, or any documentation that supports your claim.
• Step 3 – Review Hearing: An appointed hearing officer will schedule a hearing, typically within 60 days of the petition filing.
• Step 4 – Decision: The hearing officer issues a written determination. If unsatisfied, you may appeal to the Alabama Supreme Court’s Board of Equalization within 30 days of the decision.

During the appeal, you remain responsible for the current tax bill; however, any reduction in assessed value will be applied retroactively to the current year’s tax calculation.